/* jslint node: true */
'use strict';

//	ENiGMA½
const MenuModule			= require('./menu_module.js').MenuModule;
const ViewController		= require('./view_controller.js').ViewController;
const messageArea			= require('./message_area.js');
const displayThemeArt		= require('./theme.js').displayThemeArt;
const resetScreen			= require('./ansi_term.js').resetScreen;
const stringFormat			= require('./string_format.js');

//	deps
const async				= require('async');
const _					= require('lodash');

exports.moduleInfo = {
	name	: 'Message Area List',
	desc	: 'Module for listing / choosing message areas',
	author	: 'NuSkooler',
};

/*
	:TODO:

	Obv/2 has the following:
	CHANGE .ANS - Message base changing ansi
          |SN      Current base name
          |SS      Current base sponsor
          |NM      Number of messages in current base
          |UP      Number of posts current user made (total)
          |LR      Last read message by current user
          |DT      Current date
          |TI      Current time
*/

const MciViewIds = {
	AreaList		: 1,
	SelAreaInfo1	: 2,
	SelAreaInfo2	: 3, 
};

exports.getModule = class MessageAreaListModule extends MenuModule {
	constructor(options) {
		super(options);

		this.messageAreas = messageArea.getSortedAvailMessageAreasByConfTag(
			this.client.user.properties.message_conf_tag,
			{ client : this.client }
		);

		const self = this;
		this.menuMethods = {
			changeArea : function(formData, extraArgs, cb) {
				if(1 === formData.submitId) {
					let area 		= self.messageAreas[formData.value.area];
					const areaTag	=  area.areaTag;
					area = area.area;	//	what we want is actually embedded

					messageArea.changeMessageArea(self.client, areaTag, err => {
						if(err) {
							self.client.term.pipeWrite(`\n|00Cannot change area: ${err.message}\n`);

							self.prevMenuOnTimeout(1000, cb);
						} else {						
							if(_.isString(area.art)) {
								const dispOptions = {
									client	: self.client,
									name	: area.art,
								};

								self.client.term.rawWrite(resetScreen());

								displayThemeArt(dispOptions, () => {
									//	pause by default, unless explicitly told not to
									if(_.has(area, 'options.pause') && false === area.options.pause) { 
										return self.prevMenuOnTimeout(1000, cb);
									} else {
										self.pausePrompt( () => {
											return self.prevMenu(cb);
										});
									}
								});
							} else {
								return self.prevMenu(cb);
							}
						}
					});
				} else {
					return cb(null);
				}
			}
		};
	}

	prevMenuOnTimeout(timeout, cb) {
		setTimeout( () => {
			return this.prevMenu(cb);
		}, timeout);
	}

	updateGeneralAreaInfoViews(areaIndex) {
		//	:TODO: these concepts have been replaced with the {someKey} style formatting - update me!
		/* experimental: not yet avail
		const areaInfo = self.messageAreas[areaIndex];

		[ MciViewIds.SelAreaInfo1, MciViewIds.SelAreaInfo2 ].forEach(mciId => {
			const v = self.viewControllers.areaList.getView(mciId);
			if(v) {
				v.setFormatObject(areaInfo.area);
			}
		});
		*/
	}

	mciReady(mciData, cb) {
		super.mciReady(mciData, err => {
			if(err) {
				return cb(err);
			}

			const self	= this;
			const vc	= self.viewControllers.areaList = new ViewController( { client : self.client } );

			async.series(
				[
					function loadFromConfig(callback) {
						const loadOpts = {
							callingMenu	: self,
							mciMap		: mciData.menu,
							formId		: 0,
						};

						vc.loadFromMenuConfig(loadOpts, function startingViewReady(err) {
							callback(err);
						});
					},
					function populateAreaListView(callback) {
						const listFormat 		= self.menuConfig.config.listFormat || '{index} ) - {name}';
						const focusListFormat	= self.menuConfig.config.focusListFormat || listFormat;
						
						const areaListView = vc.getView(MciViewIds.AreaList);
						let i = 1;
						areaListView.setItems(_.map(self.messageAreas, v => {
							return stringFormat(listFormat, {
								index   : i++,
								areaTag : v.area.areaTag,
								name    : v.area.name,
								desc    : v.area.desc, 
							});
						}));

						i = 1;
						areaListView.setFocusItems(_.map(self.messageAreas, v => {
							return stringFormat(focusListFormat, {
								index   : i++,
								areaTag : v.area.areaTag,
								name    : v.area.name,
								desc    : v.area.desc, 
							});
						}));

						areaListView.on('index update', areaIndex => {
							self.updateGeneralAreaInfoViews(areaIndex);
						});

						areaListView.redraw();

						callback(null);
					}
				],
				function complete(err) {
					return cb(err);
				}
			);
		});
	}
};