/* global it, describe, before, after */

'use strict';

const BoxError = require('../boxerror.js'),
    database = require('../database'),
    expect = require('expect.js'),
    safe = require('safetydance');

describe('database', function () {
    describe('init', function () {
        it('can init database', async function () {
            await database.initialize();
        });

        it('can clear database', async function () {
            await database._clear();
        });

        it('can uninitialize database', async function () {
            await database.uninitialize();
        });
    });

    describe('query', function () {
        before(async () => { await database.initialize(); });
        after(async () => { await database.uninitialize(); });

        it('basic query', async function () {
            const result = await database.query('SELECT COUNT(*) as count FROM apps');
            expect(result[0].count).to.be(0);
        });

        it('bad queries', async function () {
            const queries = [
                'SELECT COUNT(*) FROM oops', // bad table
                'SELECT', // incomplete
            ];

            for (const query of queries) {
                const [error] = await safe(database.query(query));
                expect(error.reason).to.be(BoxError.DATABASE_ERROR);
                expect(error.sqlMessage).to.be.a('string');
            }
        });
    });

    describe('transaction', function () {
        before(async () => { await database.initialize(); });
        after(async () => { await database.uninitialize(); });

        it('basic transaction', async function () {
            const results = await database.transaction([
                { query: 'SELECT COUNT(*) as count FROM apps', args: [] },
                { query: 'SELECT COUNT(*) as count FROM settings', args: [] },
            ]);
            expect(results[0][0].count).to.be(0);
            expect(results[1][0].count).to.be(0);
        });

        it('bad transaction', async function () {
            const [error] = await safe(database.transaction([
                { query: 'SELECT COUNT(*) as count FROM apps', args: [] },
                { query: 'stuff', args: [] },
            ]));

            expect(error.reason).to.be(BoxError.DATABASE_ERROR);
            expect(error.sqlMessage).to.be.a('string');
        });
    });

    describe('import/export', function () {
        before(async function () {
            await database.initialize();
            await database._clear();
        });

        it('cannot import from non-existent file', async function () {
            const [error] = await safe(database.importFromFile('/does/not/exist'));
            expect(error).to.be.ok();
        });

        it('can export to file', async function () {
            await database.exportToFile('/tmp/box.mysqldump');
        });

        it('can import from file', async function () {
            await database.importFromFile('/tmp/box.mysqldump');
        });

        it('can uninitialize database', async function () {
            await database.uninitialize();
        });
    });
});