import * as DataEvent from '../../src/com/events/DataEvent';
import fs from 'fs-extra';
const settings = require('../../site/settings.json');
const folks = require('../../site/folks.json');
const config = require('../../site/tags.json');
const _ = require('lodash');

export default class Settings {
	//--------------------------
	// constructor
	//--------------------------
	constructor() {}
	//--------------------------
	// methods
	//--------------------------
	sync(req) {
		return new Promise((resolve, reject) => {
			let payload = req.body;
			let user = req.session.user;
			let found = _.find(folks, { id: user.id });
			let needToUpdate = false;
			let response = [];
			if (found) {
				let index = found.id - 1;
				if (
					folks[index].handle != payload.member.handle ||
					folks[index].email != payload.member.email
				) {
					folks[index].handle = payload.member.handle;
					folks[index].email = payload.member.email;
					fs.writeJson('site/folks.json', folks);
				} else {
					//no need to save
				}
			} else {
				let response = {
					type: DataEvent.REQUEST_LAME,
					message: "You're not logged in, champ"
				};
				reject(response);
			}

			if (!_.isEqual(settings.global, payload.global)) {
				let bg = payload.global.background;
				payload.global.background = bg.substr(21, bg.length);
				settings.global = payload.global;
				needToUpdate = true;
			} else {
				//no need to save
			}

			if (!_.isEqual(settings.email, payload.email)) {
				settings.email = payload.email;
				needToUpdate = true;
			} else {
				//no need to save
			}

			if (needToUpdate) {
				fs.writeJson('site/settings.json', settings)
					.then(() => {
						response = {
							type: DataEvent.SETTINGS_UPDATED,
							message: 'Settings Saved'
						};
						resolve(response);
					})
					.catch(() => {
						//console.error(err);
					});
			} else {
				//no need to update
			}
		});
	}
	saveTags(tags) {
		return new Promise((resolve, reject) => {
			if (!_.isEqual(config.tags, tags)) {
				config.tags = tags;
				fs.writeJson('site/tags.json', config)
					.then(() => {
						let response = {
							type: DataEvent.SETTINGS_UPDATED,
							message: 'Settings Saved'
						};
						resolve(response);
					})
					.catch(err => {
						reject(err);
					});
			} else {
				let response = {
					type: DataEvent.SETTINGS_NOT_UPDATED,
					message: 'Settings Already Saved'
				};
				resolve(response);
			}
		});
	}

	updatePageIndex() {
		fs.readJSON('site/settings.json').then(settings => {
			settings.library_stats.current_index = ++settings.library_stats.current_index;
			//settings.library_stats.total_pages = ++settings.library_stats.total_pages;
			fs.writeJSON('site/settings.json', settings);
		});
	}

	//--------------------------
	// event handlers
	//--------------------------
}