var crypto = require('crypto');

class Admin {

	help(room, mobile, input) {
		if(input.join(" ").trim().length == 0) {
			libs.Output.toMobile(mobile.id, "Admin commands:");
			libs.Output.toMobile(mobile.id, "reload, hash, time, permission");
			return false;
		}
		var topic = input.join(" ").trim();
		switch(topic) {
			case "reload":
				libs.Output.toMobile(mobile.id, "* reload world - reloads the core processing");
				libs.Output.toMobile(mobile.id, "* reload builder - reloads the building tools");
				libs.Output.toMobile(mobile.id, "* reload libs - reloads common utilities like output");
				libs.Output.toMobile(mobile.id, "* reload admin - reloads the administration tools");
				libs.Output.toMobile(mobile.id, "* reload commands - reloads the collection of player input commands");
				return false;
			case "hash":
				libs.Output.toMobile(mobile.id, "hash [input to hash] - will generate a sha256-base64 hash");
				return true;
			case "time":
				libs.Output.toMobile(mobile.id, "time - displays the current server time tick (0-640)");
				libs.Output.toMobile(mobile.id, "time [value] - sets the server to this time tick");
				return true;
			case "permission":
				libs.Output.toMobile(mobile.id, "permission see [playerName] - lists the permissions of the player");
				libs.Output.toMobile(mobile.id, "permission add [playerName] [admin|builder] - adds the permission to a player");
				libs.Output.toMobile(mobile.id, "permission remove [playerName] [admin|builder] - removes a permission from a player");
				return true;
		}
	}

	reload(room, mobile, input) {
		switch(input[0]) {
			case "world":
			return this.reloadWorld(room, mobile, input);
			case "builder":
			return this.reloadBuilder(room, mobile, input);
			case "libs":
			return this.reloadLibs(room, mobile, input);
			case "admin":
			return this.reloadAdmin(room, mobile, input);
			case "commands":
			return this.reloadCommands(room, mobile, input);
			//default:
			//return this.help(room, mobile, ["reload"]);
		}
	}

	reloadWorld(room, mobile, input) {
		var tempTime = world.time;
		var tempSession = session;
		libs.Output.toMobile(mobile.id,"Preparing to reload world.");
		try {
			delete require.cache[require.resolve('./world')];
			world = require('./world');
			world.time = tempTime;
			session = tempSession;
			libs.Output.toMobile(mobile.id,"World reloaded");
			libs.Output.toServer("World reloaded.\n");
		} catch (error) {
			libs.Output.toMobile(mobile.id, "Error when attempting to reload world.");
			libs.Output.toMobile(mobile.id, error.code + " " + error.stack +"\n");
		}
		return true;
	}

	reloadBuilder(room, mobile, input) {
		libs.Output.toMobile(mobile.id,"Preparing to reload build tools.");
		try {
			delete require.cache[require.resolve('./builder')];
			builder = require('./builder');
			libs.Output.toMobile(mobile.id,"Build tools reloaded");
			libs.Output.toServer("Build tools reloaded.\n");
		} catch (error) {
			libs.Output.toMobile(mobile.id, "Error when attempting to reload build tools.");
			libs.Output.toMobile(mobile.id, error.code + " " + error.stack +"\n");
		}
		return true;
	}

	reloadLibs(room, mobile, input) {
		libs.Output.toMobile(mobile.id,"Preparing to reload common libraries.");
		try {
			delete require.cache[require.resolve('./libs')];
			libs = require('./libs');
			for(var library in libs){
				libs.Output.toMobile(mobile.id, "\t" + library);
				delete require.cache[require.resolve('./libs/'+library.toLowerCase()+".js")];
				libs[library] = require('./libs/' + library.toLowerCase() + ".js");
			}
			libs.Output.toMobile(mobile.id,"Common libraries reloaded");
			libs.Output.toServer("Common libraries reloaded.\n");
		} catch (error) {
			libs.Output.toMobile(mobile.id, "Error when attempting to reload common libraries.");
			libs.Output.toMobile(mobile.id, error.code + " " + error.stack +"\n");
		}
		return true;
	}

	reloadCommands(room, mobile, input) {
		libs.Output.toMobile(mobile.id,"Preparing to reload commands.");
		try {
			delete require.cache[require.resolve('./commands')];
			commands = require('./commands');
			for(var commandClass in commands){
				libs.Output.toMobile(mobile.id, "\t" + commandClass);
				delete require.cache[require.resolve('./commands/'+commandClass.toLowerCase()+".js")];
				commands[commandClass] = require('./commands/' + commandClass.toLowerCase() + ".js");
			}
			libs.Output.toMobile(mobile.id,"Commands reloaded");
			libs.Output.toServer("Commands reloaded.\n");
		} catch (error) {
			libs.Output.toMobile(mobile.id, "Error when attempting to reload commands.");
			libs.Output.toMobile(mobile.id, error.code + " " + error.stack +"\n");
		}
		return true;
	}

	reloadAdmin(room, mobile, input) {
		libs.Output.toMobile(mobile.id,"Preparing to reload admin tools.");
		try {
			delete require.cache[require.resolve('./admin')];
			admin = require('./admin');
			libs.Output.toMobile(mobile.id,"Admin tools reloaded.");
			libs.Output.toServer("Admin tools reloaded.\n");
		} catch (error) {
			libs.Output.toMobile(mobile.id, "Error when attempting to reload admin tools.");
			libs.Output.toMobile(mobile.id, error.code + " " + error.stack +"\n");
		}
		return true;
	}

	hash(room, mobile, input) {
		var hash = world.mud_generateHash(input.join(" "));
		libs.Output.toMobile(mobile.id,"hash: " + hash);
		return true;
	}

	time(room, mobile, input) {
		if(input.join(" ") == null || input.join(" ") == "") {
			libs.Output.toMobile(mobile.id,"The time is " + world.time);
			return true;
		} else {
			var newTime = parseInt(input.join(" "));
			world.time = newTime;
			libs.Output.toMobile(mobile.id,"The time is " + world.time);
			return true;
		}
	}

	permission(room, mobile, input) {
		switch(input.shift()) {
			case "add":
			this.mud_addPermission(room, mobile, input);
			return true;
			case "remove":
			this.mud_removePermission(room, mobile, input);
			return true;
			case "see":
			this.mud_seePermission(room, mobile, input);
			return true;
			default:
			return this.help(room, mobile, ["permission"]);
		}
	}

	mud_addPermission(room, mobile, input) {
		var playerIds = [];
		for(var index in session.players) {
			var player = session.players[index];
			playerIds.push(player.id);
		}
		var username = input.join(" ").trim().toLowerCase();
		var player = libs.Utilities.getSpecific(username, playerIds, session.mobiles);
		if(player != null) {
			var role = input[1].trim();
			if(player.roles.indexOf(role) == -1) {
				player.roles.push(role);
				libs.Output.toMobile(mobile.id, "Adding permission '"+ role + "' to player '"+player.name+"'");
				libs.Output.toMobile(player.id, "You now have '" + role + "' access.");
				player.save();
				world.mud_handleInput(player.roomId, player.id, ["help", role]);
			}
			libs.Output.toMobile(mobile.id, "Player '"+player.name+"' roles:");
			for(var index in player.roles) {
				libs.Output.toMobile(mobile.id, "\t"+player.roles[index]);
			}

			return true;
		}
		libs.Output.toMobile(mobile.id, "That player is not online.");
		return true;
	}

	mud_seePermission(room, mobile, input) {
		var playerIds = [];
		for(var index in session.players) {
			var player = session.players[index];
			playerIds.push(player.id);
		}
		var username = input.join(" ").trim().toLowerCase();
		var player = libs.Utilities.getSpecific(username, playerIds, session.mobiles);
		if(player != null) {
			libs.Output.toMobile(mobile.id, "Player '"+player.name+"' roles:");
			for(var index in player.roles) {
				libs.Output.toMobile(mobile.id, "\t"+player.roles[index]);
			}

			return true;
		}
		libs.Output.toMobile(mobile.id, "That player is not online.");
		return true;
	}

	mud_removePermission(room, mobile, input) {
		var playerIds = [];
		for(var index in session.players) {
			var player = session.players[index];
			playerIds.push(player.id);
		}
		var username = input.join(" ").trim().toLowerCase();
		var player = libs.Utilities.getSpecific(username, playerIds, session.mobiles);
		if(player != null) {
			var role = input[1].trim();
			if(player.roles.indexOf(role) != -1) {
				player.roles.splice(player.roles.indexOf(role), 1);
				libs.Output.toMobile(mobile.id, "Removing permission '"+ role + "' from player '"+player.name+"'");
				libs.Output.toMobile(player.id, "You no longer have '" + role + "' access.");
				player.save();
			}
			libs.Output.toMobile(mobile.id, "Player '"+player.name+"' roles:");
			for(var index in player.roles) {
				libs.Output.toMobile(mobile.id, "\t"+player.roles[index]);
			}

			return true;
		}
		libs.Output.toMobile(mobile.id, "That player is not online.");
		return true;
	}
}

module.exports = new Admin();