/* 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 Conference List',
    desc    : 'Module for listing / choosing message conferences',
    author  : 'NuSkooler',
};

const MciViewIds = {
    ConfList    : 1,

    //  :TODO:
    //  # areas in conf .... see Obv/2, iNiQ, ...
    //
};

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

        this.messageConfs = messageArea.getSortedAvailMessageConferences(this.client);
        const self = this;

        this.menuMethods = {
            changeConference : function(formData, extraArgs, cb) {
                if(1 === formData.submitId) {
                    let conf        = self.messageConfs[formData.value.conf];
                    const confTag   = conf.confTag;
                    conf = conf.conf;   //  what we want is embedded

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

                            setTimeout( () => {
                                return self.prevMenu(cb);
                            }, 1000);
                        } else {
                            if(_.isString(conf.art)) {
                                const dispOptions = {
                                    client  : self.client,
                                    name    : conf.art,
                                };

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

                                displayThemeArt(dispOptions, () => {
                                    //  pause by default, unless explicitly told not to
                                    if(_.has(conf, 'options.pause') && false === conf.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);
    }

    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) {
                        let loadOpts = {
                            callingMenu : self,
                            mciMap      : mciData.menu,
                            formId      : 0,
                        };

                        vc.loadFromMenuConfig(loadOpts, callback);
                    },
                    function populateConfListView(callback) {
                        const listFormat        = self.menuConfig.config.listFormat || '{index} ) - {name}';
                        const focusListFormat   = self.menuConfig.config.focusListFormat || listFormat;

                        const confListView = vc.getView(MciViewIds.ConfList);
                        let i = 1;
                        confListView.setItems(_.map(self.messageConfs, v => {
                            return stringFormat(listFormat, {
                                index   : i++,
                                confTag : v.conf.confTag,
                                name    : v.conf.name,
                                desc    : v.conf.desc,
                            });
                        }));

                        i = 1;
                        confListView.setFocusItems(_.map(self.messageConfs, v => {
                            return stringFormat(focusListFormat, {
                                index   : i++,
                                confTag : v.conf.confTag,
                                name    : v.conf.name,
                                desc    : v.conf.desc,
                            });
                        }));

                        confListView.redraw();

                        callback(null);
                    },
                    function populateTextViews(callback) {
                        //  :TODO: populate other avail MCI, e.g. current conf name
                        callback(null);
                    }
                ],
                function complete(err) {
                    cb(err);
                }
            );
        });
    }
};