// Github:   https://github.com/TheWhiteWolves/MapChange.git
// By:       TheWhiteWolves
// Contact:  https://app.roll20.net/users/1043/thewhitewolves

var MapChange = MapChange || (function() {
    'use strict';
    // Defaults.
    // Date last modified in unix timestamp format.
    var lastModified = "1466627592";
    // Name of the person who last modified the script.
    var modifiedBy = "TheWhiteWolves";
    // Local version of the script.
    var version = "1.3";
    // Set to true to use built in debug statements
    var debug = false;
    // Set to false to turn off notifing the GM when a player moves.
    var gmNotify = false;
    // The marker used to decide what is placed in the private map.
    var marker = "[GM]";
    // The marker used to decide what is placed in the hidden map.
    var hideMarker = "[Hide]";
    // When true this places the pages with name containing the marker into the public list.
    // Use this if you want maps to be private by default instead of public by default.
    var invertedMarker = false;
    // Check the installation of the script and setup the default configs.
    var checkInstall = function() {
        if (!state.MapChange || state.MapChange.version !== version) {
            state.MapChange = state.MapChange || {};
            state.MapChange = {
                // Version number
                version: version,
                // Date last modified in unix timestamp format.
                lastModified: lastModified,
                // Name of the person who last modified the script.
                modifiedBy: modifiedBy,
                // Timestamp when the global config was last updated.
                gcUpdated: 0,
                // List of available user configs.
                config: {
                    // Set to true to use built in debug statements
                    debug: debug,
                    // Set to false to turn off notifing the GM when a player moves.
                    gmNotify: gmNotify,
                    // The marker used to decide what is placed in the private map.
                    marker: marker,
                    // The marker used to decide what is placed in the hidden map.
                    hideMarker: hideMarker,
                    // When true this places the pages with name containing the marker into the public list.
                    // Use this if you want maps to be private by default instead of public by default.
                    invertedMarker: invertedMarker
                },
                // These are maps that players are able to move to using the commands.
                publicMaps: {},
                // These are maps that only the GM can move people to.
                privateMaps: {},
                // These are maps that have been moved to the archived folder.
                archiveMaps: {},
                // These are maps that have been marked as hidden.
                hiddenMaps: {}
            };
        }
        // Check if the state doesn't contain the blocked players list.
        if (!_.has(state.MapChange, "blockedPlayers")) {
            // If it doesn't then initilise it with an empty array.
            state.MapChange.blockedPlayers = [];
        }
        // Load and changes to the defaults from the global config.
        loadGlobalConfig();
    };
    
    // Loads the config options from the global config.
    var loadGlobalConfig = function() {
        // Get a reference to the global config.
        var gc = globalconfig && globalconfig.mapchange;
        // Get a reference to the state.
        var st = state.MapChange;
        // Check if the settings need updating from the global config.
        if (gc && gc.lastsaved && gc.lastsaved > st.gcUpdated) {
            // Get the last saved time.
            st.gcUpdated = gc.lastsaved;
            // Get the debug setting from the global config.
            st.config.debug = gc['Debug Mode'] === true;
            // Get the gmNotify setting from the global config.
            st.config.gmNotify = gc['GM Notification'] === true;
            // Get the marker setting from the global config.
            st.config.marker = gc['Marker'] || "[GM]";
            // Get the hide marker setting from the global config.
            st.config.hideMarker = gc['Hide Marker'] || "[Hide]";
            // Get the invertedMarker setting from the global config.
            st.config.invertedMarker = gc['Inverted Marker'] === true;
        }
        // Debug
        if (st.config.debug) {
            log("State Config:");
            log(st.config);
        }
    };
    
    // Constructs the private and public maps for use in the api script.
    var constructMaps = function() {
        // Clear the public maps.
        state.MapChange.publicMaps = {};
        // Clear the private maps.
        state.MapChange.privateMaps = {};
        // Clear the archive maps.
        state.MapChange.archiveMaps = {};
        // Clear the hidden maps.
        state.MapChange.hiddenMaps = {};
        // Get an object containing all the pages in the campaign.
        var pages = findObjs({_type: 'page'});
        // Loop through the pages adding them to their relevent maps.
        for (var key in pages) {
            if (pages.hasOwnProperty(key)) {
                // Get the name of the page that is current being processed.
                var name = pages[key].get("name");
                // Get the id of the page that is current being processed.
                var id = pages[key].get("_id");
                // Check if the page has been marked as hidden.
                if (name.indexOf(state.MapChange.config.hideMarker) > -1) {
                    // If it has then remove the hidden marker and trim off any whitespace.
                    name = name.replace(state.MapChange.config.hideMarker, "").trim();
                    // Place the name and id in the hidden maps.
                    state.MapChange.hiddenMaps[name] = id;
                }
                else {
                    // Check if the page is an archived page.
                    if (pages[key].get("archived") === true) {
                        // If it is then remove the private map marker if it exists and trim off any whitespace.
                        name = name.replace(state.MapChange.config.marker, "").trim();
                        // Place the name and id in the archive maps.
                        state.MapChange.archiveMaps[name] = id;
                    }
                    else {
                        // Check if the name of the page contains the marker.
                        if (name.indexOf(state.MapChange.config.marker) > -1) {
                            // If the name does then remove the marker from the name and trim off any whitespace.
                            name = name.replace(state.MapChange.config.marker, "").trim();
                            // If invertedMarker is being used then place the name and id of the page in the 
                            // public map else place it in the private map.
                            state.MapChange.config.invertedMarker ? state.MapChange.publicMaps[name] = id : state.MapChange.privateMaps[name] = id;
                        }
                        else {
                            // If the name does not contain the marker then place the name and id in the public map
                            // if invertedMarker is being used else place it in the private map.
                            state.MapChange.config.invertedMarker ? state.MapChange.privateMaps[name] = id : state.MapChange.publicMaps[name] = id;
                        }
                    }
                }
            }
        }
        // Debug
        if (state.MapChange.config.debug) {
            log("Public:");
            log(state.MapChange.publicMaps);
            log("Private:");
            log(state.MapChange.privateMaps);
            log("Archived:");
            log(state.MapChange.archiveMaps);
            log("Hidden:");
            log(state.MapChange.hiddenMaps);
        }
    };
    
    // Handle the input message call for the api from the chat event.
    var handleInput = function(msg) {
        // Check that the message sent is for the api, if not return as we don't need to do anything.
        if (msg.type !== "api") {
            return;
        }
        // Grab the contents of the msg sent and split it into the individual arguments.
        var args = msg.content.split(/\s+--/);
        // Parse the first section of the arguments to get an array containing the commands.
        var commands = parseCommands(args.shift());
        // Parse the remaining aruments to get any parameters passed in.
        var params = parseParameters(args);
        // Check the lower cased version of the message to see if it contains the call for
        // this script to run, if it doesn't then return.
        switch (commands.shift().toLowerCase()) {
            case "!mapchange":
            case "!mc":
                // Check if the sending player is on the list of blocked players and is not a GM.
                if (_.contains(state.MapChange.blockedPlayers, msg.playerid) && !playerIsGM(msg.playerid)) {
                    // Send the player a message 
                    chat("/w", msg.who, "Your GM has blocked you from using commands from MapChange.<br>Please contact a GM to remove the block.");
                }
                else {
                    // Check to see if any further commands were passed in and process them, else
                    // show the help test on how to use the script.
                    if (commands.length > 0) {
                        // Process the remaining commands with the passed in paramters.
                        processCommands(msg, commands, params);
                    }
                    else {
                        // Show the sender the script help message.
                        showHelp(msg, "index");
                    }
                }
                break;
            default:
                // If we reached here it means that the call to the api was not meant for us.
                return;
        }
    };
    
    // Parses the commands of the call to the api script.
    var parseCommands = function(args) {
        if (args === undefined) {
            // If it is then return an empty array.
            return [];
        }
        // Split the arguments by spaces and return the array containing them all.
        return args.split(/\s+/);
    };
    
    // Parses the parameters of the call to the api script.
    var parseParameters = function(args) {
        // Check if args is undefined.
        if (args === undefined) {
            // If it is then return an empty object.
            return {};
        }
        // Declare a new object to hold the parameters.
        var params = {};
        // Loop through all the passed in arguments and construct them in into the parameters.
        for (var param in args) {
            if (args.hasOwnProperty(param)) {
                // Split the parameter down by spaces and temporarily store it.
                var tmp = args[param].split(/\s+/);
                // Take the first element in tmp and use it as the parameter name and reassemble the
                // remaining elements and replace the commas with spaces for the parameter value.
                params[tmp.shift()] = tmp.join().replace(/,/g, " ");
            }
        }
        // Return the constructed object of parameters.
        return params;
    };
    
    // Processes the commands provided in the call to the api script.
    var processCommands = function(msg, commands, params) {
        // Take the command and decide what function to run.
        switch (commands.shift().toLowerCase()) {
            case "help":
                // Specify the default show behaviour to be "all".
                var show = "index";
                // Check to see if the show parameter was provided in the api call.
                if (params.hasOwnProperty("show")) {
                    // If it was then check that it is not empty and if it isn't then change show to 
                    // the value of the parameter.
                    show = (params.show !== "") ? params.show.toLowerCase() : "index";
                }
                // Send the help text to the player who sent the message.
                showHelp(msg, show);
                break;
            case "menu":
                // Specify the default show behaviour to be "all".
                var show = "all";
                // Check to see if the show parameter was provided in the api call.
                if (params.hasOwnProperty("show")) {
                    // If it was then check that it is not empty and if it isn't then change show to 
                    // the value of the parameter.
                    show = (params.show !== "") ? params.show.toLowerCase() : "all";
                }
                // Show the menu to the sender of the api call with the applicable filters.
                showMenu(msg, show);
                break;
            case "refresh":
                // Refresh the public and private maps to pull in any changes made since the script
                // was last started.
                refresh(msg);
                break;
            case "move":
                // Check to see if the sender has provided and target map for the move, if they
                // haven't then send them a chat message to tell them it is missing.
                if (params.hasOwnProperty("target")) {
                    // Check to see if the sender has provided a player to be moved, if they 
                    // haven't then user the id of the sender.
                    if (params.hasOwnProperty("player")) {
                        // Move the provided player to the map with the provided name.
                        move(msg, getPlayerIdFromDisplayName(params.player), params.target);
                    }
                    else {
                        // Move the sender to the map with the provided name.
                        move(msg, msg.playerid, params.target);
                    }
                }
                else {
                    // Send a chat message to tell teh sender that they missed the target map parameter.
                    chat("/w", msg.who, "Target map parameter missing, use !mc help to see how to use this script.");
                }
                break;
            case "rejoin":
                // Check to see if a player name was provided, if so then run rejoin on that player only if
                // the sender is either a GM or the provided player is the sender.
                if (params.hasOwnProperty("player")) {
                    // Check the sender is either a GM or the provided player.
                    if (playerIsGM(msg.playerid) || params.player === msg.who) {
                        // Run the rejoin on the provided player.
                        rejoin(msg, getPlayerIdFromDisplayName(params.player));
                    }
                    else {
                        // Send a warning to the sender to tell them that they cannot perform the action.
                        chat("/w", msg.who, "You do not have the permission required to perform that action.");
                    }
                }
                else {
                    // Run rejoin on the sender of the api call.
                    rejoin(msg, msg.playerid);
                }
                break;
            case "rejoinall":
                // Move all the players back to the bookmark.
                rejoinall(msg);
                break;
            case "moveall":
                // Move all the players back to the bookmark and then move the bookmark to the map with
                // the provided name.
                moveall(msg, params.target);
                break;
            case "block":
                // Check if the sender of the message is a GM.
                if (playerIsGM(msg.playerid)) {
                    // If they are then check to see if the params contain the player parameter.
                    if (params.hasOwnProperty("player")) {
                        // Toggle the block on the provided player.
                        block(msg, getPlayerIdFromDisplayName(params.player));
                    }
                    else {
                        // Toggle the block on the sender of the message
                        block(msg, msg.playerid);
                    }
                }
                else {
                    // Send a warning to the sender to tell them that they cannot perform the action.
                    chat("/w", msg.who, "You do not have the permission required to perform that action.");
                }
                break;
            default:
                // Show the scripts help text is no further command was provided.
                showHelp(msg, "index");
                break;
        }
    };

    // Convert the provided display name into the player id for that player.
    var getPlayerIdFromDisplayName = function(name) {
        // Find all the player objects in the campaign.
        var players = findObjs({_type: 'player'});
        // Loop through them and try to convert the display name into the player's id.
        for (var key in players) {
            if (players.hasOwnProperty(key)) {
                // Check if the current players display name is equal to the provided one.
                if (players[key].get("_displayname") === name) {
                    // If it is then return that players id.
                    return players[key].get("_id");
                }
            }
        }
        // If no match was found then return undefined.
        return undefined;
    };
    
    // Convert the provided player id into the display name for that player.
    var getDisplayNameFromPlayerId = function(id) {
        // Find all the player objects in the campaign.
        var players = findObjs({_type: 'player'})
        // Loop through them and try to convert the id into the player's display name.
        for (var key in players) {
            if (players.hasOwnProperty(key)) {
                // Check if the current players id is equal to the provided one.
                if (players[key].get("_id") == id) {
                    // If it is then return that players display name.
                    return players[key].get("_displayname");
                }
            }
        }
        // If no match was found then return undefined.
        return undefined;
    };

    // TODO
    var showHelp = function(msg, show) {
        // Create the variable to hold the assembled menu text.
        var text = "";
        // Assemble the text for the help menu.
        if (show === "index") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the help menu.
            text += "<tr><td style-'text-align: left;' colspan='3'><strong><em>Help Menu</em></strong></td></tr>";
            // Add a heading row to provide names for the columns.
            text += "<tr><td><strong>Command</strong></td><td colspan='2'><strong>Description</strong></td></tr>";
            // Add a row for the menu command.
            text += "<tr><td>menu</td><td>Menu for running commands.</td><td><a href='!mc help --show menu'>Info</a></td></tr>";
            // Add a row for the move command.
            text += "<tr><td>move</td><td>Moves a player to a map.</td><td><a href='!mc help --show move'>Info</a></td></tr>";
            // Check if the calling player is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // If they are then add a row for the moveall command.
                text += "<tr><td>moveall</td><td>Moves all players to a map.</td><td><a href='!mc help --show moveall'>Info</a></td></tr>";
            }
            // Add a row for the rejoin command.
            text += "<tr><td>rejoin</td><td>Rejoins a player to the bookmark.</td><td><a href='!mc help --show rejoin'>Info</a></td></tr>";
            // Check if the calling player is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // If they are then add a row for the rejoinall command.
                text += "<tr><td>rejoinall</td><td>Rejoins all players to the bookmark.</td><td><a href='!mc help --show rejoinall'>Info</a></td></tr>";
                // Add a row for the refresh command.
                text += "<tr><td>refresh</td><td>Refreshes the map lists.</td><td><a href='!mc help --show refresh'>Info</a></td></tr>";
            }
            // Add a row for the help command.
            text += "<tr><td>help</td><td>Shows the help for the script.</td><td><a href='!mc help --show help'>Info</a></td></tr>";
            // Check if the calling player is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // Add a row for the block command.
                text += "<tr><td>block</td><td>Toggle blocking of command use.</td><td><a href='!mc help --show block'>Info</a></td></tr>";
            }
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a blank line to seperate the command information from the general information.
            text += "<br line-height='1'>";
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add a header for the general information table.
            text += "<tr><td colspan='2'><strong>General Information:</strong></td></tr>";
            // Check if the calling player is a GM or not.
            if (playerIsGM(msg.playerid)) {
                text += "<tr><td>Configuring Maps</td><td><a href='!mc help --show map'>Info</a></td></tr>";
            }
            // Add a row for the information on constructing an API call.
            text += "<tr><td>Constructing an API call</td><td><a href='!mc help --show api'>Info</a></td></tr>";
            // Add a row for the information on using parameters.
            text += "<tr><td>Using Parameters</td><td><a href='!mc help --show params'>Info</a></td></tr>";
            // Add a row for the credits.
            text += "<tr><td>Credits</td><td><a href='!mc help --show credits'>Info</a></td></tr>";
            // Add a row for the version information.
            text += "<tr><td>Version</td><td><a href='!mc help --show version'>Info</a></td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
        }
        // Assemble the text for the menu documentation.
        if (show === "menu") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the move help.
            text += "<tr><td colspan='3'><strong><em>Menu</em></strong></td></tr>";
            // Add a row for the description header.
            text += "<tr><td colspan='3'><strong>Description</strong></td></tr>";
            // Add a row for the description of the command.
            text += "<tr><td colspan='3'>The menu command provides a menu for the user to launch commands that are available to them.</td></tr>";
            // Add a row for the parameters section headers.
            text += "<tr><td><strong>Parameter</strong></td><td><strong>Description</strong></td><td><strong>Options</strong></td></tr>";
            // Add a row for the show parameter.
            text += "<tr><td>--show</td><td><em>[Optional]</em><br>Used to filter the returned view.</td><td>All<br>Public<br>" + ((playerIsGM(msg.playerid)) ? "Private<br>Archive<br>Hidden<br>" : "") + "Utilities<br>Utils</td></tr>";
            // Add a row for the example header.
            text += "<tr><td colspan='3'><strong>Example</strong></td></tr>";
            // Add a row with an example and an api button to launch that example.
            text += "<tr><td colspan='2'>!mc menu</td><td><a href='!mc menu'>Show Me!</a></td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("", "move");
        }
        // Assemble the text for the move documentation.
        if (show === "move") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the move help.
            text += "<tr><td colspan='3'><strong><em>Move</em></strong></td></tr>";
            // Add a row for the description header.
            text += "<tr><td colspan='3'><strong>Description</strong></td></tr>";
            // Add a row for the description of the command.
            text += "<tr><td colspan='3'>The move command moves a player to the provided target map.</td></tr>";
            // Add a row for the parameters section headers.
            text += "<tr><td><strong>Parameter</strong></td><td><strong>Description</strong></td><td><strong>Options</strong></td></tr>";
            // Add a row for the target parameter.
            text += "<tr><td>--target</td><td><em>[Required]</em><br>The target map to move to.</td><td>Name of the Map</td></tr>";
            // Check if the calling player is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // If they are then add a row for the player parameter.
                text += "<tr><td>--player</td><td><em>[Optional]</em><br>The player to move.</td><td>Player Name</td></tr>";
            }
            // Add a row for the example header.
            text += "<tr><td colspan='3'><strong>Example</strong></td></tr>";
            // Add a row with an example and an api button to launch that example.
            text += "<tr><td colspan='2'>!mc move --target " + _.first(_.keys(state.MapChange.publicMaps)) + "</td><td><a href='!mc move --target " + _.first(_.keys(state.MapChange.publicMaps)) + "'>Show Me!</a></td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("menu", "moveall");
        }
        // Assemble the text for the moveall documentation.
        if (show === "moveall") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the move help.
            text += "<tr><td colspan='3'><strong><em>Moveall</em></strong></td></tr>";
            // Add a row for the description header.
            text += "<tr><td colspan='3'><strong>Description</strong></td></tr>";
            // Add a row for the description of the command.
            text += "<tr><td colspan='3'>The moveall command moves all players to the provided target map.</td></tr>";
            // Add a row for the parameters section headers.
            text += "<tr><td><strong>Parameter</strong></td><td><strong>Description</strong></td><td><strong>Options</strong></td></tr>";
            // Add a row for the target parameter.
            text += "<tr><td>--target</td><td><em>[Required]</em><br>The target map to move to.</td><td>Name of the Map</td></tr>";
            // Add a row for the example header.
            text += "<tr><td colspan='3'><strong>Example</strong></td></tr>";
            // Add a row with an example and an api button to launch that example.
            text += "<tr><td colspan='2'>!mc moveall --target " + _.first(_.keys(state.MapChange.publicMaps)) + "</td><td><a href='!mc moveall --target " + _.first(_.keys(state.MapChange.publicMaps)) + "'>Show Me!</a></td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("move", "rejoin");
        }
        // Assemble the text for the rejoin documentation.
        if (show === "rejoin") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the move help.
            text += "<tr><td colspan='3'><strong><em>Rejoin</em></strong></td></tr>";
            // Add a row for the description header.
            text += "<tr><td colspan='3'><strong>Description</strong></td></tr>";
            // Add a row for the description of the command.
            text += "<tr><td colspan='3'>The rejoin command moves a player back to the bookmark.</td></tr>";
            // Add a row for the parameters section headers.
            text += "<tr><td><strong>Parameter</strong></td><td><strong>Description</strong></td><td><strong>Options</strong></td></tr>";
            // Check if the calling player is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // If they are then add a row for the player parameter.
                text += "<tr><td>--player</td><td><em>[Optional]</em><br>The player to move.</td><td>Player Name</td></tr>";
            }
            // Add a row for the example header.
            text += "<tr><td colspan='3'><strong>Example</strong></td></tr>";
            // Add a row with an example and an api button to launch that example.
            text += "<tr><td colspan='2'>!mc rejoin</td><td><a href='!mc rejoin'>Show Me!</a></td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("moveall", "rejoinall");
        }
        // Assemble the text for the rejoinall documentation.
        if (show === "rejoinall") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the move help.
            text += "<tr><td colspan='3'><strong><em>Rejoinall</em></strong></td></tr>";
            // Add a row for the description header.
            text += "<tr><td colspan='3'><strong>Description</strong></td></tr>";
            // Add a row for the description of the command.
            text += "<tr><td colspan='3'>The rejoinall command moves all players back to the bookmark.</td></tr>";
            // Add a row for the parameters section headers.
            text += "<tr><td><strong>Parameter</strong></td><td><strong>Description</strong></td><td><strong>Options</strong></td></tr>";
            // Add a row for the example header.
            text += "<tr><td colspan='3'><strong>Example</strong></td></tr>";
            // Add a row with an example and an api button to launch that example.
            text += "<tr><td colspan='2'>!mc rejoinall</td><td><a href='!mc rejoinall'>Show Me!</a></td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("rejoin", "refresh");
        }
        // Assemble the text for the refresh documentation.
        if (show === "refresh") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the move help.
            text += "<tr><td colspan='3'><strong><em>Refresh</em></strong></td></tr>";
            // Add a row for the description header.
            text += "<tr><td colspan='3'><strong>Description</strong></td></tr>";
            // Add a row for the description of the command.
            text += "<tr><td colspan='3'>The refresh command clears and reloads the map lists without needing to restart the script.</td></tr>";
            // Add a row for the parameters section headers.
            text += "<tr><td><strong>Parameter</strong></td><td><strong>Description</strong></td><td><strong>Options</strong></td></tr>";
            // Add a row for the example header.
            text += "<tr><td colspan='3'><strong>Example</strong></td></tr>";
            // Add a row with an example and an api button to launch that example.
            text += "<tr><td colspan='2'>!mc refresh</td><td><a href='!mc refresh'>Show Me!</a></td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("rejoinall", "help");
        }
        // Assemble the text for the help documentation.
        if (show === "help") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the move help.
            text += "<tr><td colspan='3'><strong><em>Help</em></strong></td></tr>";
            // Add a row for the description header.
            text += "<tr><td colspan='3'><strong>Description</strong></td></tr>";
            // Add a row for the description of the command.
            text += "<tr><td colspan='3'>The help command provides an interactive menu for the documentation of the script.</td></tr>";
            // Add a row for the parameters section headers.
            text += "<tr><td><strong>Parameter</strong></td><td><strong>Description</strong></td><td><strong>Options</strong></td></tr>";
            // Add a row for the show parameter.
            text += "<tr><td>--show</td><td><em>[Optional]</em><br>Used to filter the returned view.</td><td>Menu<br>Move<br>" + ((playerIsGM(msg.playerid)) ? "Moveall<br>" : "") + "Rejoin<br>" + ((playerIsGM(msg.playerid)) ? "Refresh<br>" : "") + "Help<br>Api<br>Params<br>Credits<br>Version</td></tr>";
            // Add a row for the example header.
            text += "<tr><td colspan='3'><strong>Example</strong></td></tr>";
            // Add a row with an example and an api button to launch that example.
            text += "<tr><td colspan='2'>!mc help</td><td><a href='!mc help'>Show Me!</a></td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("refresh", "block");
        }
        // 
        if (show === "block") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the move help.
            text += "<tr><td colspan='3'><strong><em>Block</em></strong></td></tr>";
            // Add a row for the description header.
            text += "<tr><td colspan='3'><strong>Description</strong></td></tr>";
            // Add a row for the description of the command.
            text += "<tr><td colspan='3'>The block command toggles the players ability to use MapChange commands.</td></tr>";
            // Add a row for the parameters section headers.
            text += "<tr><td><strong>Parameter</strong></td><td><strong>Description</strong></td><td><strong>Options</strong></td></tr>";
            // If they are then add a row for the player parameter.
            text += "<tr><td>--player</td><td><em>[Optional]</em><br>The player to block/unblock.</td><td>Player Name</td></tr>";
            // Add a row for the example header.
            text += "<tr><td colspan='3'><strong>Example</strong></td></tr>";
            // Add a row with an example and an api button to launch that example.
            text += "<tr><td colspan='2'>!mc block</td><td><a href='!mc help'>Show Me!</a></td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("help", "");
        }
        // Assemble the text for the configuring maps documentation.
        if (show === "map") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the configuring maps information.
            text += "<tr><td colspan='3'><strong><em>Configuring Maps</em></strong></td></tr>";
            // Add the decription on how to configure the campaigns maps.
            text += "<tr><td colspan='3'>By default all maps are made public and available for any user to move to, there are a couple of\
                                         options included in the script to modify this behaviour.<br><br>\
                                         The first option available is to mark a map as private, to do this the GM must include the marker in \
                                         the maps name, by default this is <strong>[GM]</strong> (this is also configurable), so for example,\
                                         if you have a map called <strong>Baron Trevis' Keep</strong> then you would add the marker to this name\
                                         to make it <strong>[GM] Baron Trevis' Keep</strong>, this would then add that map to the private list\
                                         instead of public.<br><br>\
                                         The second way to modify the behaviour is to invert the map markings, for this the GM must set the\
                                         Inverted Marker option to true, what this will do is place all maps into the private listing by default\
                                         instead of the public listings, this then requires the GM to mark a map in the above way to make it public.\
                                         (this is where changing the marker may be useful).</td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("", "api");
        }
        // Assemble the text for the constructing an API documentation.
        if (show === "api") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the constructing an api call information.
            text += "<tr><td colspan='3'><strong><em>Constructing an API call</em></strong></td></tr>";
            // Add the decription on how to construct an api call.
            text += "<tr><td colspan='3'>An API call in MapChange consists of two required components and one optional component.<br><br>\
                                         The first required component is the call to the script, this is started by using a exclamation \
                                         mark followed by the script name or alias (e.g. !mc or !mapchange)<br><br>\
                                         The second required component is the command for the script, this must be seperated from the \
                                         script call marker by using a space. (e.g. !mc help)<br><br>\
                                         Finally the optional component is the parameters for the command you are using, this is started by \
                                         using two dashes (e.g. --show), note that sometimes a command may allow or require more than one \
                                         parameter.<br><br>As with the command this must be seperated from the command using a space and each \
                                         parameter must be seperated using a space. (e.g. !mc help --show index)</td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("map", "params");
        }
        // Assemble the text for the using parameters documentation.
        if (show === "params") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the using parameters information.
            text += "<tr><td colspan='3'><strong><em>Using Parameters</em></strong></td></tr>";
            // Add in a row for the information on parameters.
            text += "<tr><td colspan='3'>Parameters in MapChange are composed of three pieces, the first is the Parameter Marker, the second \
                                         is the Parameter Name and the third is the Parameter Value.<br><br>\
                                         The Parameter Marker consists of two dashes (e.g. --), this allows the script to know that the \
                                         following text is a parameter.<br><br>\
                                         The Parameter Name is the name that the script will use when applying it to the command (e.g. show), see \
                                         the help on each command to find out what parameters they accept.<br><br>\
                                         The Parameter Value is the piece of information or option you pass to the script to use with the \
                                         Parameter.<br><br>\
                                         Some commands only accept a set amount of options whereas others will accept what the user sends and \
                                         attempt to use it, see the help on each command to find out what can be used with each parameter.</td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("api", "credits");
        }
        // Assemble the text for the credits.
        if (show === "credits") {
            // Declare the styling for the profile link, this makes it look like an api button.
            var buttonStyle = "background-color: #CE0F69; color: white; padding: 6px 6px; text-decoration: none; display: inline-block; font-family: Arial;";
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add in the header row for the credits.
            text += "<tr><td colspan='2'><strong><em>Credits</em></strong></td></tr>";
            // Add in the header row for the authors.
            text += "<tr><td colspan='2'><strong>Authors</strong></td></tr>";
            // Add in in TheWhiteWolves as an author.
            text += "<tr><td>TheWhiteWolves</td><td><a style='" + buttonStyle + "' href='https://app.roll20.net/users/1043/thewhitewolves'>Profile</a></td></tr>";
            // Add in the header row for the testers.
            text += "<tr><td colspan='2'><strong>Testers</strong></td></tr>";
            // Add in in WhiteStar as a tester.
            text += "<tr><td>WhiteStar</td><td><a style='" + buttonStyle + "' href='https://app.roll20.net/users/484663/whitestar'>Profile</a></td></tr>";
            // Add in in Kaelev as a tester.
            text += "<tr><td>Kaelev</td><td><a style='" + buttonStyle + "' href='https://app.roll20.net/users/618858/kaelev'>Profile</a></td></tr>";
            // Add in in Enzo S.as a tester.
            text += "<tr><td>Enzo S.</td><td><a style='" + buttonStyle + "' href='https://app.roll20.net/users/1191835/enzo-s'>Profile</a></td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("params", "version");
        }
        // Assemble the text for the version information.
        if (show === "version") {
            // Add the opening tag for the table.
            text += "<table border='1' cellspacing='2' cellpadding='4'>";
            // Add a row for the version number.
            text += "<tr><td><strong>Version</strong></td><td>" + state.MapChange.version + "</td></tr>";
            // Add a row for the last modified date and time.
            text += "<tr><td><strong>Last Modified</strong></td><td>" + new Date(state.MapChange.lastModified * 1000).toUTCString() + "</td></tr>";
            // Add a row for who last modified the script.
            text += "<tr><td><strong>By</strong></td><td>" + state.MapChange.modifiedBy + "</td></tr>";
            // Add the closing tag for the table.
            text += "</table>";
            // Add in a back button for going back to the menu.
            text += navigation("credits", "");
        }
        // Send the assembled menu text to the chat to be displayed.
        chat("/w", msg.who, text);
        // Debug
        if (state.MapChange.config.debug) {
            log(msg);
            log(text);
            log(show);
        }
    };
    
    // Displays a chat based menu for the teleportation, this provides users with  a set of
    // easy to use api buttons in the chat that will launch the commands for them.
    var showMenu = function(msg, show) {
        // Specify what the max display length of the map names will be on the api buttons.
        var displayLength = 20;
        // Find all the player objects in the campaign.
        var players = findObjs({_type: 'player'});
        // Create the variable to hold the assembled menu text.
        var text = "";
        // Check if the show parameter is set to show any of the maps.
        if (show === "all" || show === "public" || show === "private" || show === "archive" || show === "hidden") {
            // Start off the chat message with the Available Maps title.
            text += "<tr><td colspan='3'><strong><em>Available Maps:</em></strong></td></tr>";
        }
        // Check if the "show" parameter is set to either "all" or "public".
        if (show === "all" || show === "public") {
            // If it is then check if the calling player is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // If they are then add a row for the Public title.
                text += "<tr><td colspan='3'><strong><em>Public</em></strong></td></tr>";
            }
            // Loop through the map displaying an api button for each one.
            for (var key in state.MapChange.publicMaps) {
                if (state.MapChange.publicMaps.hasOwnProperty(key)) {
                    // Add a tag to open start a row on the table.
                    text += "<tr>";
                    // Generate an api button with the map name that will teleport the user to that map.
                    // If the map name is longer than 20 characters then trim it and add an elipse.
                    text += "<td><a href='!mc move --target " + _.escape(key) + "'>" + ((key.length > displayLength) ? key.substr(0, displayLength) + "..." : key) + "</a></td>";
                    // Check if the calling player is a GM or not.
                    if (playerIsGM(msg.playerid)) {
                        // If they are then add extra GM only buttons.
                        // Add a button to teleport all players to the chosen map.
                        text += "<td><a href='!mc moveall --target " + _.escape(key) + "'>All</a></td>";
                        // Add a button to teleport a differnet player to the chosen map.
                        text += "<td><a href='!mc move --target " + _.escape(key) + " --player ?{Player";
                        // Loop through the players in the campaign adding them to the dropdown for the Other command.
                        for (var key in players) {
                            if (players.hasOwnProperty(key)) {
                                // Add the current players name with any brackets replaced for their ASCII equivalents.
                                text += "|" + _.escape(players[key].get("_displayname"));
                            }
                        }
                        // Complete the Other api button.
                        text += "}'>Other</a></td>";
                    }
                    // Add a closing tag to finish the row in the table.
                    text += "</tr>";
                }
            }
        }
        // Check if the "show" parameter is set to either "all" or "private".
        if (show === "all" || show === "private") {
            // If it is then check if the calling player is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // If they are then add a row for the Private title..
                text += "<tr><td colspan='3'><strong><em>Private</em></strong></td></tr>";
                // Loop through the map displaying an api button for each one.
                for (var key in state.MapChange.privateMaps) {
                    if (state.MapChange.privateMaps.hasOwnProperty(key)) {
                        // Add a tag to open start a row on the table.
                        text += "<tr>";
                        // Generate an api button with the map name that will teleport the user to that map.
                        // If the map name is longer than 20 characters then trim it and add an elipse.
                        text += "<td><a href='!mc move --target " + _.escape(key) + "'>" + ((key.length > displayLength) ? key.substr(0, displayLength) + "..." : key) + "</a></td>";
                        // Add a button to teleport all players to the chosen map.
                        text += "<td><a href='!mc moveall --target " + _.escape(key) + "'>All</a></td>";
                        // Add a button to teleport a differnet player to the chosen map.
                        text += "<td><a href='!mc move --target " + _.escape(key) + " --player ?{Player";
                        // Loop through the players in the campaign adding them to the dropdown for the command.
                        for (var key in players) {
                            // Add the current players name with any brackets replaced for their ASCII equivalents.
                            text += "|" + _.escape(players[key].get("_displayname"));
                        }
                        // Complete the Other api button.
                        text += "}'>Other</a></td>";
                        
                        // Add a closing tag to finish the row in the table.
                        text += "</tr>";
                    }
                }
            }
        }
        // Check if the "show" parameter is set to "archive".
        if (show === "archive") {
            // If it is then check if the calling player is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // If they are then add a row for the Archive title..
                text += "<tr><td colspan='3'><strong><em>Archive</em></strong></td></tr>";
                // Loop through the map displaying an api button for each one.
                for (var key in state.MapChange.archiveMaps) {
                    if (state.MapChange.archiveMaps.hasOwnProperty(key)) {
                        // Add a tag to open start a row on the table.
                        text += "<tr>";
                        // Generate an api button with the map name that will teleport the user to that map.
                        // If the map name is longer than 20 characters then trim it and add an elipse.
                        text += "<td><a href='!mc move --target " + _.escape(key) + "'>" + ((key.length > displayLength) ? key.substr(0, displayLength) + "..." : key) + "</a></td>";
                        // Add a button to teleport all players to the chosen map.
                        text += "<td><a href='!mc moveall --target " + _.escape(key) + "'>All</a></td>";
                        // Add a button to teleport a differnet player to the chosen map.
                        text += "<td><a href='!mc move --target " + _.escape(key) + " --player ?{Player";
                        // Loop through the players in the campaign adding them to the dropdown for the command.
                        for (var key in players) {
                            // Add the current players name with any brackets replaced for their ASCII equivalents.
                            text += "|" + _.escape(players[key].get("_displayname"));
                        }
                        // Complete the Other api button.
                        text += "}'>Other</a></td>";
                        
                        // Add a closing tag to finish the row in the table.
                        text += "</tr>";
                    }
                }
            }
        }
        else {
            // Check if the "show" parameter is set to "all".
            if (show === "all") {
                // If it is then check if the calling player is a GM or not.
                if (playerIsGM(msg.playerid)) {
                    // If they are then add a row for the Private title..
                    text += "<tr><td colspan='3'><strong><em>Archive</em></strong></td></tr>";
                    // Add a row with a placeholder button for the archived maps.
                    text += "<tr><td colspan='3'><a href='!mc menu --show archive'>List All Archive Maps</a></td></tr>";
                }
            }
        }
        // Check if the "show" parameter is set to "hidden".
        if (show === "hidden") {
            // If it is then check if the calling player is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // If they are then add a row for the Hidden title.
                text += "<tr><td colspan='3'><strong><em>Hidden</em></strong></td></tr>";
                // Loop through the map displaying an api button for each one.
                for (var key in state.MapChange.hiddenMaps) {
                    if (state.MapChange.hiddenMaps.hasOwnProperty(key)) {
                        // Add a tag to open start a row on the table.
                        text += "<tr>";
                        // Generate an api button with the map name that will teleport the user to that map.
                        // If the map name is longer than 20 characters then trim it and add an elipse.
                        text += "<td><a href='!mc move --target " + _.escape(key) + "'>" + ((key.length > displayLength) ? key.substr(0, displayLength) + "..." : key) + "</a></td>";
                        // Add a button to teleport all players to the chosen map.
                        text += "<td><a href='!mc moveall --target " + _.escape(key) + "'>All</a></td>";
                        // Add a button to teleport a differnet player to the chosen map.
                        text += "<td><a href='!mc move --target " + _.escape(key) + " --player ?{Player";
                        // Loop through the players in the campaign adding them to the dropdown for the command.
                        for (var key in players) {
                            // Add the current players name with any brackets replaced for their ASCII equivalents.
                            text += "|" + _.escape(players[key].get("_displayname"));
                        }
                        // Complete the Other api button.
                        text += "}'>Other</a></td>";
                        
                        // Add a closing tag to finish the row in the table.
                        text += "</tr>";
                    }
                }
            }
        }
        else {
            // Check if the "show" parameter is set to "all".
            if (show === "all") {
                // If it is then check if the calling player is a GM or not.
                if (playerIsGM(msg.playerid)) {
                    // If they are then add a row for the Private title..
                    text += "<tr><td colspan='3'><strong><em>Hidden</em></strong></td></tr>";
                    // Add a row with a placeholder button for the archived maps.
                    text += "<tr><td colspan='3'><a href='!mc menu --show hidden'>List All Hidden Maps</a></td></tr>";
                }
            }
        }
        // Check to see if the text is currently empty.
        if (text !== "") {
            // If it isn't then wrap the text within a set of table tags.
            text = "<table border='1' cellspacing='0' cellpadding='0'>" + text + "</table>";
        }
        // Check to see if the filter is set to display all.
        if (show === "all" || show === "archive" || show === "hidden") {
            // Add in a blank line to seperate the menus.
            text += "<br line-height='1'>";
        }
        // Check if the "show" paramter is set to either "all" or "utilities"/"utils".
        if (show === "all" || show === "utilities" || show === "utils" || show === "archive" || show === "hidden") {
            // Add a table to start a new table.
            text += "<table <table border='1' cellspacing='0' cellpadding='0'>";
            // Add in the title for the utilities section.
            text += "<tr><td colspan='4'><strong><em>Utilities:</em></strong></td></tr>";
            // Add a tag to start a new row for the utility commands.
            text += "<tr>";
            // Add an api button for the rejoin command.
            text += "<td><a href='!mc rejoin'>Rejoin</a></td>";
            // Check if the caller is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // Add an api button for the GM to force all players to rejoin the bookmark.
                text += "<td><a href='!mc rejoinall'>All</a></td>"
                // Add an api button for the GM to force rejoin another player to the bookmark.
                text += "<td><a href='!mc rejoin --player ?{Player";
                // Loop through the players in the campaign adding them to the dropdown for the command.
                for (var key in players) {
                    if (players.hasOwnProperty(key)) {
                        // Add the current players name with any brackets replaced for their ASCII equivalents.
                        text += "|" + players[key].get("_displayname").replace("(", _.escape("(")).replace(")", _.escape(")"));
                    }
                }
                // Complete the Rejoin Other api button.
                text += "}'>Other</a></td>";
                // If they are then add an api button for the map refresh command.
                text += "<td><a href='!mc refresh'>Refresh</a></td>";
            }
            // Check if the caller is a GM or not.
            if (!playerIsGM(msg.playerid)) {
                // Add an api button for the help command.
                text += "<td><a href='!mc help'>Help</a></td>";
            }
            // Add the closing tag of the last row.
            text += "</tr>";
            // Check if the caller is a GM or not.
            if (playerIsGM(msg.playerid)) {
                // Add the opening tag for a new row.
                text += "<tr>";
                // Add an api button for toggling the block on a player.
                text += "<td colspan='2'><a href='!mc block --player ?{Player";
                // Loop through the players in the campaign adding them to the dropdown for the command.
                for (var key in players) {
                    if (players.hasOwnProperty(key)) {
                        // Add the current players name with any brackets replaced for their ASCII equivalents.
                        text += "|" + players[key].get("_displayname").replace("(", _.escape("(")).replace(")", _.escape(")"));
                    }
                }
                // Complete the Toggle Block api button.
                text += "}'>Toggle Block</a></td>";
                // Add an api button for the help command.
                text += "<td><a href='!mc help'>Help</a></td></tr>";
            }
            // Add a tag to close the table.
            text += "</table>";
        }
        // Debug
        if (state.MapChange.config.debug) {
            log(show);
            log(text);
        }
        // Send the assembled menu text to the chat to be displayed.
        chat("/w", msg.who, text);
    };

    // Refreshes the maps without needing to restart the script.
    var refresh = function(msg) {
        log("Refreshing Maps...");
        // Clear out the public maps.
        state.MapChange.publicMaps = {};
        // Clear out the private maps.
        state.MapChange.privateMaps = {};
        // Clear out the archive maps.
        state.MapChange.archiveMaps = {};
        // Clear out the hidden maps.
        state.MapChange.hiddenMaps = {};
        // Debug
        if (state.MapChange.config.debug) {
            log("Clear Public:");
            log(state.MapChange.publicMaps);
            log("Clear Private:");
            log(state.MapChange.privateMaps);
            log("Clear Archived:");
            log(state.MapChange.archiveMaps);
            log("Clear Hidden:");
            log(state.MapChange.hiddenMaps);
        }
        // Reassemble the maps.
        constructMaps();
        log("Refresh Complete");
        // Check if the GM should be notified.
        if (state.MapChange.config.gmNotify) {
            // If they should then send them a message.
            chat("/w", "gm", "Map Refresh Complete");
        }
        // Debug
        if (state.MapChange.config.debug) {
            log("Rebuilt Public:");
            log(state.MapChange.publicMaps);
            log("Rebuilt Private:");
            log(state.MapChange.privateMaps);
            log("Rebuilt Archived:");
            log(state.MapChange.archiveMaps);
            log("Rebuilt Hidden:");
            log(state.MapChange.hiddenMaps);
        }
    };
    
    // Moves a player to the specified map.
    var move = function(msg, sender, target) {
        var pages = findObjs({_type: 'page'});
        var playerPages = Campaign().get("playerspecificpages");
        var differentSender = false;
        
        if (msg.playerid != sender) {
            differentSender = true;
        }
        
        if (playerPages === false) {
            playerPages = {};
        }
        
        if (target in state.MapChange.publicMaps) {
            // Move player.
            if (sender in playerPages) {
                delete playerPages[sender];
            }
            playerPages[sender] = state.MapChange.publicMaps[target];
            
            if (state.MapChange.config.gmNotify) {
                var playerAddition = ((differentSender) ? getDisplayNameFromPlayerId(sender) + " " : "");
                chat("/w", "gm", msg.who.replace("(GM)", "") + " has moved " + playerAddition + "to " + target);
            }
        }
        else if (target in state.MapChange.privateMaps) {
            if (playerIsGM(msg.playerid)) {
                // Move player.
                if (sender in playerPages) {
                    delete playerPages[sender];
                }
                playerPages[sender] = state.MapChange.privateMaps[target];
                
                if (state.MapChange.config.gmNotify) {
                    var playerAddition = ((differentSender) ? getDisplayNameFromPlayerId(sender) + " " : "");
                    chat("/w", "gm", msg.who.replace("(GM)", "") + " has moved " + playerAddition + "to " + target);
                }
            }
        }
        else if (target in state.MapChange.archiveMaps) {
            if (playerIsGM(msg.playerid)) {
                // Move player.
                if (sender in playerPages) {
                    delete playerPages[sender];
                }
                playerPages[sender] = state.MapChange.archiveMaps[target];
                
                if (state.MapChange.config.gmNotify) {
                    var playerAddition = ((differentSender) ? getDisplayNameFromPlayerId(sender) + " " : "");
                    chat("/w", "gm", msg.who.replace("(GM)", "") + " has moved " + playerAddition + "to " + target);
                }
            }
        }
        else if (target in state.MapChange.hiddenMaps) {
            if (playerIsGM(msg.playerid)) {
                // Move player.
                if (sender in playerPages) {
                    delete playerPages[sender];
                }
                playerPages[sender] = state.MapChange.hiddenMaps[target];
                
                if (state.MapChange.config.gmNotify) {
                    var playerAddition = ((differentSender) ? getDisplayNameFromPlayerId(sender) + " " : "");
                    chat("/w", "gm", msg.who.replace("(GM)", "") + " has moved " + playerAddition + "to " + target);
                }
            }
        }
        else {
            // Report Map not found.
            chat("/w", msg.who, "Map " + target + " not found");
        }
        
        Campaign().set("playerspecificpages", false);
        Campaign().set("playerspecificpages", playerPages);
    };

    var rejoin = function(msg, sender) {
        var playerPages = Campaign().get("playerspecificpages");
        var differentSender = false;
        
        if (msg.playerid != sender) {
            differentSender = true;
        }
        
        if (playerPages !== false) {
            if (sender in playerPages) {
                delete playerPages[sender];
                Campaign().set("playerspecificpages", false);
            }
        }
        if (_.isEmpty(playerPages)) {
            playerPages = false;
        }
        Campaign().set("playerspecificpages", playerPages);
        
        if (state.MapChange.config.gmNotify) {
            if (differentSender) {
                chat("/w", "gm", msg.who.replace("(GM)", "") + " has rejoined " + getDisplayNameFromPlayerId(sender) + " with the bookmark")
            }
            else {
                chat("/w", "gm", msg.who.replace("(GM)", "") + " has rejoined the bookmark");
            }
        }
    };
    
    var rejoinall = function(msg) {
        if (playerIsGM(msg.playerid)) { 
            Campaign().set("playerspecificpages", false);
            
            if (state.MapChange.config.gmNotify) {
                chat("/w", "gm", "All players have rejoined the bookmark");
            }
        }
    };

    // Add teh archive maps move in here
    var moveall = function(msg, target) {
        if (playerIsGM(msg.playerid)) {
            var bookmarkPage = Campaign().get("playerpageid");
            if (target in state.MapChange.publicMaps) {
                Campaign().set("playerspecificpages", false);
                bookmarkPage = state.MapChange.publicMaps[target];
                
                if (state.MapChange.config.gmNotify) {
                    chat("/w", "gm", "All players have moved to " + target);
                }
            }
            else if (target in state.MapChange.privateMaps) {
                Campaign().set("playerspecificpages", false);
                bookmarkPage = state.MapChange.privateMaps[target];
                
                if (state.MapChange.config.gmNotify) {
                    chat("/w", "gm", "All players have moved to " + target);
                }
            }
            else if (target in state.MapChange.archiveMaps) {
                Campaign().set("playerspecificpages", false);
                bookmarkPage = state.MapChange.archiveMaps[target];
                
                if (state.MapChange.config.gmNotify) {
                    chat("/w", "gm", "All players have moved to " + target);
                }
            }
            else if (target in state.MapChange.hiddenMaps) {
                Campaign().set("playerspecificpages", false);
                bookmarkPage = state.MapChange.hiddenMaps[target];
                
                if (state.MapChange.config.gmNotify) {
                    chat("/w", "gm", "All players have moved to " + target);
                }
            }
            else {
                chat("/w", msg.who, "Map " + target + " not found");
            }
            
            Campaign().set("playerpageid", bookmarkPage);
        }
    };
    
    var block = function(msg, player) {
        // Check if the sender is a GM.
        if (playerIsGM(msg.playerid)) {
            // Check if the block players list contains the provided player.
            if (_.contains(state.MapChange.blockedPlayers, player)) {
                // Find the index of the player in the list.
                var index = _.indexOf(state.MapChange.blockedPlayers, player);
                // Remove the player from the list.
                state.MapChange.blockedPlayers = state.MapChange.blockedPlayers.splice(index - 1, index);
                // Check if the GM should be notified.
                if (state.MapChange.config.gmNotify) {
                    // Send a message to the GM to tell them that a player has been unblocked.
                    chat("/w", "gm", "Unblocked " + getDisplayNameFromPlayerId(player) + " from using commands.");
                }
            }
            else {
                // Add the player to the blocked player list.
                state.MapChange.blockedPlayers.push(player);
                // Check if the GM should be notified.
                if (state.MapChange.config.gmNotify) {
                    // Send a message to the GM to tell them that a player has been unblocked.
                    chat("/w", "gm", "Blocked " + getDisplayNameFromPlayerId(player) + " from using commands.");
                }
            }
        }
        // Debug
        if (state.MapChange.config.debug) {
            log(state.MapChange.blockedPlayers);
        }
    };
    
    var chat = function(type, who, message) {
        who = who.split(" ")[0].replace(" (GM)", "");
        sendChat("MapChange", type + " " + who + " " + message, {noarchive:true});
    };
    
    var navigation = function(prev, next) {
        // Create a varaible to hold the total colspan for the title bar.
        var colspan = 1;
        // Check if prev is not empty.
        if (prev !== "") {
            // If it is then increment colspan.
            colspan += 1;
        }
        // Check if next is not empty.
        if (next !== "") {
            // If it is then increment colspan.
            colspan += 1;
        }
        // Add in a blank line to seperate the information from the back button.
        var text = "<br line-height='1'>";
        // Add in a new table for the back button.
        text += "<table border='1' cellspacing='2' cellpadding='4'>";
        // Add in the title row for the navigation bar.
        text += "<tr><td colspan='" + colspan + "'><strong><em>Navigation<em></strong></td></tr>";
        // Add the opening tag for the row.
        text += "<tr>";
        // Check if prev is not empty.
        if (prev !== "") {
            // If it is then add a table element in for the previous button.
            text += "<td><a href='!mc help --show " + prev + "'>Previous</a></td>";
        }
        // Add in the row for the back button.
        text += "<td><a href='!mc help'>Back</a></td>";
        // Check if next is not empty.
        if (next !== "") {
            // If it is then add a table element in for the next button.
            text += "<td><a href='!mc help --show " + next + "'>Next</a></td>";
        }
        // Add the closing tag for the table.
        text += "</tr></table>";
        // Return the assembled text.
        return text;
    };

    var registerEventHandlers = function() {
        on('chat:message', handleInput);
    };

    return {
        ConstructMaps: constructMaps,
        RegisterEventHandlers: registerEventHandlers,
        CheckInstall: checkInstall
    };
}());

var globalconfig = globalconfig || undefined;

on("ready", function() {
    'use strict';
    // Load in the global config settings.
    MapChange.CheckInstall();
    // If it is then log out the map construction.
    log("Map Change Started");
    log("Blocked Players");
    log(state.MapChange.blockedPlayers);
    MapChange.ConstructMaps();
    log("Maps Constructed");
    MapChange.RegisterEventHandlers();
    log("Map Change Ready");
    // If it is then send a message to the GM to tell them the script is ready.
    sendChat("Map Change", "/w gm Map Change Ready");
});