import * as path from 'path';

import { EnvConfigSettingsFileLoader } from '../../src';
import { configRootsDir } from '../helpers';

describe('EnvConfigFileSettingsLoader', () => {

    const baseNameAsFileRoot = path.join(configRootsDir, 'baseNameAsFile');
    const baseNameAsDirRoot = path.join(configRootsDir, 'baseNameAsDir');
    const mergedRoot = path.join(configRootsDir, 'merged');
    const refsRoot = path.join(configRootsDir, 'refs');

    it('Should load settings file directly from path', async () => {
        const filePath = path.join(baseNameAsFileRoot, 'settings.yaml');
        const loader = new EnvConfigSettingsFileLoader(filePath);
        const settings = await loader.load();
        expect(settings).toHaveProperty('base');
        expect(settings.base).toHaveProperty('setting1', 'value1');
    });

    it('Should load settings file defined with file named with baseName', async () => {
        const loader = new EnvConfigSettingsFileLoader(baseNameAsFileRoot, 'settings');
        const settings = await loader.load();
        expect(settings).toHaveProperty('base');
        expect(settings.base).toHaveProperty('setting1', 'value1');
    });

    it('Should load settings file defined with directory named with baseName and file named base', async () => {
        const loader = new EnvConfigSettingsFileLoader(baseNameAsDirRoot, 'settings');
        const settings = await loader.load();
        expect(settings).toHaveProperty('base');
        expect(settings.base).toHaveProperty('setting1', 'value1');
    });

    it('Should load settings from base and file with baseName development when NODE_ENV = development, along with defined environment variables', async () => {
        process.env.NODE_ENV = 'development';
        const loader = new EnvConfigSettingsFileLoader(mergedRoot, 'settings');
        const settings = await loader.load();
        expect(settings).toHaveProperty('base');
        expect(settings).toHaveProperty('nodeEnv');
        expect(settings.nodeEnv).toHaveProperty('development');
        expect(settings.base).toHaveProperty('setting1', 'baseValue1');
        expect(settings.nodeEnv.development).toHaveProperty('setting2', 'devValue2');
        expect(settings.envVars).toHaveProperty('setting3', 'TEST_SETTING_3');
    });

    it('Should load settings from base and file with baseName production when NODE_ENV = production, along with defined environment variables', async () => {
        process.env.NODE_ENV = 'production';
        const loader = new EnvConfigSettingsFileLoader(mergedRoot, 'settings');
        const settings = await loader.load();
        expect(settings).toHaveProperty('base');
        expect(settings).toHaveProperty('nodeEnv');
        expect(settings.nodeEnv).toHaveProperty('production');
        expect(settings.base).toHaveProperty('setting1', 'baseValue1');
        expect(settings.nodeEnv.production).toHaveProperty('setting2', 'prodValue2');
        expect(settings.nodeEnv.development).toBeFalsy();
        expect(settings.envVars).toHaveProperty('setting3', 'TEST_SETTING_3');
    });



});