import { describe, it, beforeEach, jest, expect } from '@jest/globals';
import { YError } from 'yerror';
import initAppConfig from './APP_CONFIG.js';
import { NodeEnv } from './ENV.js';
import { type AppConfig } from './APP_CONFIG.js';
import { type ImporterService, type LogService } from 'common-services';

describe('initAppConfig', () => {
  const log = jest.fn<LogService>();
  const importer = jest.fn<ImporterService<{ default: AppConfig }>>();

  beforeEach(() => {
    log.mockReset();
    importer.mockReset();
  });

  it('should work with existing configs', async () => {
    importer.mockResolvedValueOnce({
      default: {
        BASE_ENV: {
          NODE_ENV: NodeEnv.Test,
        },
      },
    });

    const APP_CONFIG = await initAppConfig({
      APP_ENV: 'local',
      MAIN_FILE_URL: 'file:///home/whoami/my-whook-project/src/index.js',
      log,
      importer,
    });

    expect({
      APP_CONFIG,
      logCalls: log.mock.calls.filter((args) => 'debug-stack' !== args[0]),
      importerCalls: importer.mock.calls,
    }).toMatchInlineSnapshot(`
     {
       "APP_CONFIG": {
         "BASE_ENV": {
           "NODE_ENV": "test",
         },
       },
       "importerCalls": [
         [
           "file:///home/whoami/my-whook-project/src/config/local/config.js",
         ],
       ],
       "logCalls": [
         [
           "debug",
           "🏭 - Initializing the APP_CONFIG service.",
         ],
         [
           "warning",
           "⚡ - Loading configurations from "file:///home/whoami/my-whook-project/src/config/local/config.js".",
         ],
       ],
     }
    `);
  });

  it('should fail with non-existing file', async () => {
    importer.mockImplementationOnce(() => {
      throw new Error('EEXISTS');
    });

    try {
      await initAppConfig({
        APP_ENV: 'local',
        MAIN_FILE_URL: 'file:///home/whoami/my-whook-project/src/index.js',
        log,
        importer,
      });
      throw new YError('E_UNEXPECTED_SUCCESS');
    } catch (err) {
      expect({
        errorCode: (err as YError).code,
        errorDebug: (err as YError).debug,
        logCalls: log.mock.calls.filter(([type]) => !type.endsWith('stack')),
        importerCalls: importer.mock.calls,
      }).toMatchInlineSnapshot(`
       {
         "errorCode": "E_NO_CONFIG",
         "errorDebug": [
           "file:///home/whoami/my-whook-project/src/config/local/config.js",
         ],
         "importerCalls": [
           [
             "file:///home/whoami/my-whook-project/src/config/local/config.js",
           ],
         ],
         "logCalls": [
           [
             "debug",
             "🏭 - Initializing the APP_CONFIG service.",
           ],
           [
             "warning",
             "⚡ - Loading configurations from "file:///home/whoami/my-whook-project/src/config/local/config.js".",
           ],
           [
             "warning",
             "☢ - Could not load configuration file "file:///home/whoami/my-whook-project/src/config/local/config.js".",
           ],
         ],
       }
      `);
    }
  });
});