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80 lines
2.0 KiB
TypeScript
80 lines
2.0 KiB
TypeScript
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import fs from 'fs/promises';
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import { getSchemas } from '../../schemas';
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import patches from '../patches';
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import DatabaseCore from './core';
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import { runPatches } from './runPatch';
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import { Patch } from './types';
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export class DatabaseManager {
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db: DatabaseCore;
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constructor() {}
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async createNewDatabase(dbPath: string, countryCode: string) {
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await this.#unlinkIfExists(dbPath);
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this.connectToDatabase(dbPath, countryCode);
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}
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async connectToDatabase(dbPath: string, countryCode?: string) {
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this.db = new DatabaseCore(dbPath);
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this.db.connect();
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countryCode ??= await this.#getCountryCode();
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const schemaMap = getSchemas(countryCode);
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this.db.setSchemaMap(schemaMap);
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await this.migrate();
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}
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async migrate() {
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const patchesToExecute = await this.#getPatchesToExecute();
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const preMigrationPatches = patchesToExecute.filter(
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(p) => p.patch.beforeMigrate
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);
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const postMigrationPatches = patchesToExecute.filter(
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(p) => !p.patch.beforeMigrate
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);
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await runPatches(preMigrationPatches, this);
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await this.db.migrate();
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await runPatches(postMigrationPatches, this);
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}
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async #getPatchesToExecute(): Promise<Patch[]> {
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const query: { name: string }[] = await this.db
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.knex('PatchRun')
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.select('name');
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const executedPatches = query.map((q) => q.name);
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return patches.filter((p) => !executedPatches.includes(p.name));
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}
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async #getCountryCode(): Promise<string | undefined> {
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if (!this.db) {
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return undefined;
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}
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const query = await this.db
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.knex('SingleValue')
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.where({ fieldname: 'countryCode', parent: 'SystemSettings' });
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if (query.length > 0) {
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return query[0].countryCode as string;
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}
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return undefined;
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}
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async #unlinkIfExists(dbPath: string) {
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try {
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fs.unlink(dbPath);
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} catch (err) {
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if (err.code === 'ENOENT') {
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return;
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}
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throw err;
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}
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}
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}
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export default new DatabaseManager();
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