const { Permissions } = require("discord.js");

/**
 * Fetch guild informations
 * @param {string} guildID The ID of the guild to fetch
 * @param {object} client The discord client instance
 * @param {array} guilds The user guilds
 */
async function fetchGuild(guildID, client, guilds) {
	const guild = client.guilds.cache.get(guildID);
	const conf = await client.findOrCreateGuild({ id:guild.id });

	return { ...guild, ...conf.toJSON(), ...guilds.find((g) => g.id === guild.id) };
};

/**
 * Fetch user informations (stats, guilds, etc...)
 * @param {object} userData The oauth2 user informations
 * @param {object} client The discord client instance
 * @param {string} query The optional query for guilds
 * @returns {object} The user informations
 */
async function fetchUser(userData, client, query) {
	if (userData.guilds) {
		userData.guilds.forEach((guild) => {
			if (!client.guilds.cache.get(guild.id)) return;
			const perms = new Permissions(BigInt(guild.permissions));
			if (perms.has(Permissions.FLAGS.MANAGE_GUILD)) guild.admin = true;

			guild.settingsUrl = (client.guilds.cache.get(guild.id) ? `/manage/${guild.id}/` : `https://discordapp.com/oauth2/authorize?client_id=${client.user.id}&scope=bot&permissions=8&guild_id=${guild.id}`);
			guild.statsUrl = (client.guilds.cache.get(guild.id) ? `/stats/${guild.id}/` : `https://discordapp.com/oauth2/authorize?client_id=${client.user.id}&scope=bot&permissions=8&guild_id=${guild.id}`);
			guild.iconURL = (guild.icon ? `https://cdn.discordapp.com/icons/${guild.id}/${guild.icon}.png?size=128` : "https://discordemoji.com/assets/emoji/discordcry.png");
			guild.displayed = (query ? guild.name.toLowerCase().includes(query.toLowerCase()) : true);
		});
		userData.displayedGuilds = userData.guilds.filter((g) => g.displayed && g.admin);
		if (userData.displayedGuilds.length < 1) delete userData.displayedGuilds;
	};
	const user = await client.users.fetch(userData.id);
	const userDb = await client.findOrCreateUser({ id: user.id }, true);
	const userInfos = { ...user.toJSON(), ...userDb, ...userData, ...user.presence };

	return userInfos;
};

module.exports = { fetchUser, fetchGuild };