@lionrockjs/central/dist/controller-mixin/Database.mjs

Node.js MVC framework inspire from PHP Kohana Framework

import { ControllerMixin } from '@lionrockjs/mvc';
import DatabaseAdapter from '../adapter/Database.mjs';
import Central from '../Central.mjs';
export default class ControllerMixinDatabase extends ControllerMixin {
    constructor() {
        super();
    }
    static #dbConnection = new Map();
    static DATABASE_MAP = 'databaseMap';
    static DATABASE_ADAPTER = 'databaseAdapter';
    static DATABASES = 'databases';
    static defaultAdapter = DatabaseAdapter;
    static init(state) {
        if (!state.get(this.DATABASE_MAP))
            state.set(this.DATABASE_MAP, new Map());
        if (!state.get(this.DATABASES))
            state.set(this.DATABASES, new Map());
        if (!state.get(this.DATABASE_ADAPTER))
            state.set(this.DATABASE_ADAPTER, this.defaultAdapter);
    }
    static async setup(state) {
        const conn = await this.#getConnections(state.get(this.DATABASE_MAP), state.get(this.DATABASE_ADAPTER));
        conn.forEach((v, k) => {
            state.get(this.DATABASES).set(k, v);
        });
    }
    /**
     *
     * @param databaseMap
     * @param driverClass
     * @returns {Map}
     */
    static async #getConnections(databaseMap, driverClass) {
        const raw = new TextEncoder().encode(Array.from(databaseMap.keys()).join('') + Array.from(databaseMap.values()).join(''));
        const hashBuf = await crypto.subtle.digest('SHA-256', raw);
        const key = Array.from(new Uint8Array(hashBuf)).map(b => b.toString(16).padStart(2, '0')).join('');
        const conn = ControllerMixinDatabase.#dbConnection.get(key);
        if (conn)
            return conn;
        const connections = new Map();
        databaseMap.forEach((v, k) => {
            try {
                connections.set(k, driverClass.create(v));
            }
            catch (e) {
                Central.log(e);
                Central.log(v);
                Central.log(driverClass);
                throw e;
            }
        });
        connections.set('createdAt', Date.now());
        ControllerMixinDatabase.#dbConnection.set(key, connections);
        return connections;
    }
}