machinomy/lib/storage/sqlite/EngineSqlite.js

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const fs = require("fs");
const sqlite = require("sqlite3");
const SqliteDatastore_1 = require("./SqliteDatastore");
let db = new Map();
class EngineSqlite {
    constructor(url) {
        if (url.startsWith('sqlite://')) {
            url = url.replace('sqlite://', '');
        }
        let found = db.get(url);
        if (found) {
            this.datastore = found;
        }
        else {
            this.datastore = new SqliteDatastore_1.default(new sqlite.Database(url));
            db.set(url, this.datastore);
        }
    }
    isConnected() {
        return true;
    }
    async connect() {
        return Promise.resolve();
    }
    async close() {
        return this.exec(async (client) => {
            return client.close();
        });
    }
    async drop() {
        return this.exec(async (client) => {
            let row = await client.get('PRAGMA database_list');
            if (row && row.file && row.file.length > 0) {
                fs.unlinkSync(row.file);
            }
        });
    }
    async exec(fn) {
        return fn(this.datastore);
    }
}
exports.default = EngineSqlite;
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