// @flow

import rimRaf from 'rimraf';
import path from 'path';
import LocalStorage from '../../../src/lib/local-storage';
import AppConfig from '../../../src/lib/config';
// $FlowFixMe
import configExample from '../partials/config/index';
import Logger, {setup} from '../../../src/lib/logger';
import {readFile} from '../../functional/lib/test.utils';

const readMetadata = (fileName: string = 'metadata') => readFile(`../../unit/partials/${fileName}`);

import type {Config} from '@verdaccio/types';
import type {IStorage} from '../../../types/index';

setup([]);

describe('LocalStorage', () => {
  let storage: IStorage;
  const pkgName: string = 'npm_test';
  const pkgNameScoped = `@scope/${pkgName}-scope`;
  const tarballName: string = `${pkgName}-add-tarball-1.0.4.tgz`;
  const tarballName2: string = `${pkgName}-add-tarball-1.0.5.tgz`;

  beforeAll(function () {
    const config: Config = new AppConfig(configExample);
    config.self_path = path.join('../partials/store');

    storage = new LocalStorage(config, Logger.logger);
  });

  test('should be defined', () => {
    expect(storage).toBeDefined();
  });

  describe('LocalStorage::preparePackage', () => {
    test('should add a package', (done) => {
      const metadata = JSON.parse(readMetadata());
      // $FlowFixMe
      const pkgStoragePath = storage._getLocalStorage(pkgName);
      rimRaf(pkgStoragePath.path, (err) => {
        expect(err).toBeNull();
        storage.addPackage(pkgName, metadata, (err, data) => {
          expect(data.version).toMatch(/1.0.0/);
          expect(data.dist.tarball).toMatch(/npm_test-1.0.0.tgz/);
          expect(data.name).toEqual(pkgName);
          done();
        });
      });
    });

    test('should add a @scope package', (done) => {
      const metadata = JSON.parse(readMetadata());
      // $FlowFixMe
      const pkgStoragePath = storage._getLocalStorage(pkgNameScoped);

      rimRaf(pkgStoragePath.path, (err) => {
        expect(err).toBeNull();
        storage.addPackage(pkgNameScoped, metadata, (err, data) => {
          expect(data.version).toMatch(/1.0.0/);
          expect(data.dist.tarball).toMatch(/npm_test-1.0.0.tgz/);
          expect(data.name).toEqual(pkgName);
          done();
        });
      });
    });

    test('should fails on add a package', (done) => {
      const metadata = JSON.parse(readMetadata());

      storage.addPackage(pkgName, metadata, (err) => {
        expect(err).not.toBeNull();
        expect(err.statusCode).toEqual(409);
        expect(err.message).toMatch(/this package is already present/);
        done();
      });
    });

    describe('LocalStorage::addVersion', () => {
      test('should add new version without tag', (done) => {
        const metadata = JSON.parse(readMetadata('metadata-add-version'));

        storage.addVersion(pkgName, '1.0.1', metadata, '', (err, data) => {
          expect(err).toBeNull();
          expect(data).toBeUndefined();
          done();
        });
      });

      test('should fails on add a duplicated version without tag', (done) => {
        const metadata = JSON.parse(readMetadata('metadata-add-version'));

        storage.addVersion(pkgName, '1.0.1', metadata, '', (err, data) => {
          expect(err).not.toBeNull();
          expect(err.statusCode).toEqual(409);
          expect(err.message).toMatch(/this package is already present/);
          done();
        });
      });

      test('should add new second version without tag', (done) => {
        const metadata = JSON.parse(readMetadata('metadata-add-version'));

        storage.addVersion(pkgName, '1.0.2', metadata, 'beta', (err, data) => {
          expect(err).toBeNull();
          expect(data).toBeUndefined();
          done();
        });
      });
    });

    describe('LocalStorage::updateVersions', () => {
      test('should update versions from origin', (done) => {
        const metadata = JSON.parse(readMetadata('metadata-update-versions-tags'));

        storage.updateVersions(pkgName, metadata, (err, data) => {
          expect(err).toBeNull();
          expect(data.versions['1.0.3']).toBeDefined();
          done();
        });
      });
    });

    describe('LocalStorage::changePackage', () => {
      test('should unpublish a version', (done) => {
        const metadata = JSON.parse(readMetadata('metadata-unpublish'));
        const rev: string = metadata['_rev'];

        storage.changePackage(pkgName, metadata, rev, (err) => {
          expect(err).toBeUndefined();
          done();
        });
      });
    });

    describe('LocalStorage::tarball operations', () => {

      describe('LocalStorage::addTarball', () => {

        test('should add a new tarball', (done) => {
          const tarballData = JSON.parse(readMetadata('addTarball'));
          const stream = storage.addTarball(pkgName, tarballName);

          stream.on('error', function(err) {
            expect(err).toBeNull();
            done();
          });
          stream.on('success', function() {
            done();
          });

          stream.end(new Buffer(tarballData.data, 'base64'));
          stream.done();
        });

        test('should add a new second tarball', (done) => {
          const tarballData = JSON.parse(readMetadata('addTarball'));
          const stream = storage.addTarball(pkgName, tarballName2);
          stream.on('error', function(err) {
            expect(err).toBeNull();
            done();
          });
          stream.on('success', function() {
            done();
          });

          stream.end(new Buffer(tarballData.data, 'base64'));
          stream.done();
        });

        test('should fails on add a duplicated new tarball ', (done) => {
          const tarballData = JSON.parse(readMetadata('addTarball'));
          const stream = storage.addTarball(pkgName, tarballName);
          stream.on('error', function(err) {
            expect(err).not.toBeNull();
            expect(err.statusCode).toEqual(409);
            expect(err.message).toMatch(/this package is already present/);
            done();
          });

          stream.on('success', function() {
            done();
          });

          stream.end(new Buffer(tarballData.data, 'base64'));
          stream.done();
        });

        test('should fails on add a new tarball on missing package', (done) => {
          const tarballData = JSON.parse(readMetadata('addTarball'));
          const stream = storage.addTarball('unexsiting-package', tarballName);
          stream.on('error', function(err) {
            expect(err).not.toBeNull();
            expect(err.statusCode).toEqual(404);
            expect(err.message).toMatch(/no such package available/);
            done();
          });

          stream.on('success', function() {
            done();
          });

          stream.end(new Buffer(tarballData.data, 'base64'));
          stream.done();
        });

        test('should fails on use invalid package name on add a new tarball', (done) => {
          const stream = storage.addTarball(pkgName, `${pkgName}-fails-add-tarball-1.0.4.tgz`);
          stream.on('error', function(err) {
            expect(err).not.toBeNull();
            expect(err.statusCode).toEqual(422);
            expect(err.message).toMatch(/refusing to accept zero-length file/);
            done();
          });

          stream.done();
        });

        test('should fails on abort on add a new tarball', (done) => {
          const stream = storage.addTarball('package.json', `${pkgName}-fails-add-tarball-1.0.4.tgz`);
          stream.abort();
          stream.on('error', function(err) {
            expect(err).not.toBeNull();
            expect(err.statusCode).toEqual(403);
            expect(err.message).toMatch(/can't use this filename/);
            done();
          });

          stream.done();
        });

        describe('LocalStorage::removeTarball', () => {

          test('should remove a tarball', (done) => {
            storage.removeTarball(pkgName, tarballName2, 'rev', (err, pkg) => {
              expect(err).toBeNull();
              expect(pkg).toBeUndefined();
              done();
            });
          });

          test('should remove a tarball that does not exist', (done) => {
            storage.removeTarball(pkgName, tarballName2, 'rev', (err) => {
              expect(err).not.toBeNull();
              expect(err.statusCode).toEqual(404);
              expect(err.message).toMatch(/no such file available/);
              done();
            });
          });
        });

      });

      describe('LocalStorage::getTarball', () => {
        test('should get a existing tarball', (done) => {
          const stream = storage.getTarball(pkgName, tarballName);
          stream.on('content-length', function(contentLength) {
            expect(contentLength).toBe(279);
            done();
          });
          stream.on('open', function() {
            done();
          });
        });

        test('should fails on get a tarball that does not exist', (done) => {
          const stream = storage.getTarball('fake', tarballName);
          stream.on('error', function(err) {
            expect(err).not.toBeNull();
            expect(err.statusCode).toEqual(404);
            expect(err.message).toMatch(/no such file available/);
            done();
          });
        });
      });

      describe('LocalStorage::search', () => {
        test('should find a tarball', (done) => {
          const stream = storage.search('99999');

          stream.on('data', function each(pkg) {
            expect(pkg.name).toEqual(pkgName);
          });

          stream.on('error', function(err) {
            expect(err).not.toBeNull();
            done();
          });

          stream.on('end', function() {
            done();
          });
        });

      });
    });

    describe('LocalStorage::removePackage', () => {
      test.skip('should remove completely package', (done) => {
        storage.removePackage(pkgName, (err, data) => {
          expect(err).toBeNull();
          expect(data).toBeUndefined();
          done();
        });
      });

      test('should remove completely @scoped package', (done) => {
        storage.removePackage(pkgNameScoped, (err, data) => {
          expect(err).toBeNull();
          expect(data).toBeUndefined();
          done();
        });
      });

      test('should fails with package not found', (done) => {
        const pkgName: string = 'npm_test_fake';
        storage.removePackage(pkgName, (err, data) => {
          expect(err).not.toBeNull();
          expect(err.message).toMatch(/no such package available/);
          done();
        });
      });

      test('should fails with @scoped package not found', (done) => {
        storage.removePackage(pkgNameScoped, (err, data) => {
          expect(err).not.toBeNull();
          expect(err.message).toMatch(/no such package available/);
          done();
        });
      });
    });
  });

});