/*
 * decaffeinate suggestions:
 * DS102: Remove unnecessary code created because of implicit returns
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
const Sequelize = require("sequelize");
const Settings = require("settings-sharelatex");
const _ = require("underscore");
const logger = require("logger-sharelatex");

const options = _.extend({logging:false}, Settings.mysql.clsi);

logger.log({dbPath:Settings.mysql.clsi.storage}, "connecting to db");

const sequelize = new Sequelize(
	Settings.mysql.clsi.database,
	Settings.mysql.clsi.username,
	Settings.mysql.clsi.password,
	options
);

if (Settings.mysql.clsi.dialect === "sqlite") {
	logger.log("running PRAGMA journal_mode=WAL;");
	sequelize.query("PRAGMA journal_mode=WAL;");
	sequelize.query("PRAGMA synchronous=OFF;");
	sequelize.query("PRAGMA read_uncommitted = true;");
}

module.exports = {
	UrlCache: sequelize.define("UrlCache", {
		url: Sequelize.STRING,
		project_id: Sequelize.STRING,
		lastModified: Sequelize.DATE
	}, {
		indexes: [
			{fields: ['url', 'project_id']},
			{fields: ['project_id']}
		]
	}),

	Project: sequelize.define("Project", {
		project_id: {type: Sequelize.STRING, primaryKey: true},
		lastAccessed: Sequelize.DATE
	}, {
		indexes: [
			{fields: ['lastAccessed']}
		]
	}),

	op: Sequelize.Op,
	
	sync() { 
		logger.log({dbPath:Settings.mysql.clsi.storage}, "syncing db schema");
		return sequelize.sync()
			.then(() => logger.log("db sync complete")).catch(err=> console.log(err, "error syncing"));
	}
};