const { Provider } = require('../interfaces/');
const { MongoClient } = require('mongodb');

class MongoDBProvider extends Provider {

    constructor(client, config) {
        
        super(client, {
            name: 'mongodb',
            config
        });

    }

    async initialize() {

        try {
            this.connection = await MongoClient.connect(this.config.host+this.config.database, { useUnifiedTopology: true });
            this.db = await this.connection.db(this.config.database);
            return this._initialized = true; //eslint-disable-line no-return-assign
        } catch(err) {
            this._error(err);
            return false;
        }

    }

    stats(options = {}) {

        return new Promise((resolve, reject) => {

            if (!this._initialized) return reject(new Error('MongoDB is not connected.'));
            this.db.stats(options, (error, result) => {
                if (error) reject(error);
                resolve(result);
            });
            
        });

    }

    get guilds() {
        return this.tables.guilds;
    }

    get permissions() {
        return this.tables.permissions;
    }

    get infractions() {
        return this.tables.infractions;
    }

    get messages() {
        return this.tables.messages;
    }

    get attachments() {
        return this.tables.attachments;
    }

    get users() {
        return this.tables.users;
    }

    get role_cache() {
        return this.tables.role_cache;
    }

    get webhooks() {
        return this.tables.webhooks;
    }

}

module.exports = MongoDBProvider;