expo-sqlite/build/SQLite.js

import './polyfillNextTick';
import customOpenDatabase from '@expo/websql/custom';
import { requireNativeModule, EventEmitter } from 'expo-modules-core';
import { Platform } from 'react-native';
const ExpoSQLite = requireNativeModule('ExpoSQLite');
const emitter = new EventEmitter(ExpoSQLite);
function zipObject(keys, values) {
    const result = {};
    for (let i = 0; i < keys.length; i++) {
        result[keys[i]] = values[i];
    }
    return result;
}
/** The database returned by `openDatabase()` */
export class SQLiteDatabase {
    _name;
    _closed = false;
    constructor(name) {
        this._name = name;
    }
    /**
     * Executes the SQL statement and returns a callback resolving with the result.
     */
    exec(queries, readOnly, callback) {
        if (this._closed) {
            throw new Error(`The SQLite database is closed`);
        }
        ExpoSQLite.exec(this._name, queries.map(_serializeQuery), readOnly).then((nativeResultSets) => {
            callback(null, nativeResultSets.map(_deserializeResultSet));
        }, (error) => {
            // TODO: make the native API consistently reject with an error, not a string or other type
            callback(error instanceof Error ? error : new Error(error));
        });
    }
    /**
     * Executes the SQL statement and returns a Promise resolving with the result.
     */
    async execAsync(queries, readOnly) {
        if (this._closed) {
            throw new Error(`The SQLite database is closed`);
        }
        const nativeResultSets = await ExpoSQLite.exec(this._name, queries.map(_serializeQuery), readOnly);
        return nativeResultSets.map(_deserializeResultSet);
    }
    /**
     * @deprecated Use `closeAsync()` instead.
     */
    close = this.closeAsync;
    /**
     * Close the database.
     */
    closeAsync() {
        this._closed = true;
        return ExpoSQLite.close(this._name);
    }
    /**
     * Synchronously closes the database.
     */
    closeSync() {
        this._closed = true;
        return ExpoSQLite.closeSync(this._name);
    }
    /**
     * Delete the database file.
     * > The database has to be closed prior to deletion.
     */
    deleteAsync() {
        if (!this._closed) {
            throw new Error(`Unable to delete '${this._name}' database that is currently open. Close it prior to deletion.`);
        }
        return ExpoSQLite.deleteAsync(this._name);
    }
    onDatabaseChange(cb) {
        return emitter.addListener('onDatabaseChange', cb);
    }
    /**
     * Creates a new transaction with Promise support.
     * @param asyncCallback A `SQLTransactionAsyncCallback` function that can perform SQL statements in a transaction.
     * @param readOnly true if all the SQL statements in the callback are read only.
     */
    async transactionAsync(asyncCallback, readOnly = false) {
        await this.execAsync([{ sql: 'BEGIN;', args: [] }], false);
        try {
            const transaction = new ExpoSQLTransactionAsync(this, readOnly);
            await asyncCallback(transaction);
            await this.execAsync([{ sql: 'END;', args: [] }], false);
        }
        catch (e) {
            await this.execAsync([{ sql: 'ROLLBACK;', args: [] }], false);
            throw e;
        }
    }
    // @ts-expect-error: properties that are added from websql
    version;
}
function _serializeQuery(query) {
    return Platform.OS === 'android'
        ? {
            sql: query.sql,
            args: query.args.map(_escapeBlob),
        }
        : [query.sql, query.args];
}
function _deserializeResultSet(nativeResult) {
    const [errorMessage, insertId, rowsAffected, columns, rows] = nativeResult;
    // TODO: send more structured error information from the native module so we can better construct
    // a SQLException object
    if (errorMessage !== null) {
        return { error: new Error(errorMessage) };
    }
    return {
        insertId,
        rowsAffected,
        rows: rows.map((row) => zipObject(columns, row)),
    };
}
function _escapeBlob(data) {
    if (typeof data === 'string') {
        /* eslint-disable no-control-regex */
        return data
            .replace(/\u0002/g, '\u0002\u0002')
            .replace(/\u0001/g, '\u0001\u0002')
            .replace(/\u0000/g, '\u0001\u0001');
        /* eslint-enable no-control-regex */
    }
    else {
        return data;
    }
}
const _openExpoSQLiteDatabase = customOpenDatabase(SQLiteDatabase);
// @needsAudit @docsMissing
/**
 * Open a database, creating it if it doesn't exist, and return a `Database` object. On disk,
 * the database will be created under the app's [documents directory](./filesystem), i.e.
 * `${FileSystem.documentDirectory}/SQLite/${name}`.
 * > The `version`, `description` and `size` arguments are ignored, but are accepted by the function
 * for compatibility with the WebSQL specification.
 * @param name Name of the database file to open.
 * @param version
 * @param description
 * @param size
 * @param callback
 * @return
 */
export function openDatabase(name, version = '1.0', description = name, size = 1, callback) {
    if (name === undefined) {
        throw new TypeError(`The database name must not be undefined`);
    }
    const db = _openExpoSQLiteDatabase(name, version, description, size, callback);
    db.exec = db._db.exec.bind(db._db);
    db.execAsync = db._db.execAsync.bind(db._db);
    db.closeAsync = db._db.closeAsync.bind(db._db);
    db.closeSync = db._db.closeSync.bind(db._db);
    db.onDatabaseChange = db._db.onDatabaseChange.bind(db._db);
    db.deleteAsync = db._db.deleteAsync.bind(db._db);
    db.transactionAsync = db._db.transactionAsync.bind(db._db);
    return db;
}
/**
 * Internal data structure for the async transaction API.
 * @internal
 */
export class ExpoSQLTransactionAsync {
    db;
    readOnly;
    constructor(db, readOnly) {
        this.db = db;
        this.readOnly = readOnly;
    }
    async executeSqlAsync(sqlStatement, args) {
        const resultSets = await this.db.execAsync([{ sql: sqlStatement, args: args ?? [] }], this.readOnly);
        return resultSets[0];
    }
}
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