import configureMockStore from 'redux-mock-store';
import thunk from 'redux-thunk';
import fetchMock from 'fetch-mock';
import reducer, {
  FETCH_PLUGINS,
  FETCH_PLUGINS_PENDING,
  FETCH_PLUGINS_SUCCESS,
  FETCH_PLUGINS_FAILURE,
  FETCH_PLUGIN,
  FETCH_PLUGIN_PENDING,
  FETCH_PLUGIN_SUCCESS,
  FETCH_PLUGIN_FAILURE,
  fetchPluginsByLink,
  fetchPluginsSuccess,
  getPluginCollection,
  isFetchPluginsPending,
  getFetchPluginsFailure,
  fetchPluginByLink,
  fetchPluginByName,
  fetchPluginSuccess,
  getPlugin,
  isFetchPluginPending,
  getFetchPluginFailure,
} from './plugins';
import { Plugin, PluginCollection } from '@scm-manager/ui-types';

const groupManagerPlugin: Plugin = {
  name: 'scm-groupmanager-plugin',
  bundles: ['/scm/groupmanager-plugin.bundle.js'],
  type: 'Administration',
  version: '2.0.0-SNAPSHOT',
  author: 'Sebastian Sdorra',
  description: 'Notify a remote webserver whenever a plugin is pushed to.',
  _links: {
    self: {
      href: 'http://localhost:8081/api/v2/ui/plugins/scm-groupmanager-plugin',
    },
  },
};

const scriptPlugin: Plugin = {
  name: 'scm-script-plugin',
  bundles: ['/scm/script-plugin.bundle.js'],
  type: 'Miscellaneous',
  version: '2.0.0-SNAPSHOT',
  author: 'Sebastian Sdorra',
  description: 'Script support for scm-manager.',
  _links: {
    self: {
      href: 'http://localhost:8081/api/v2/ui/plugins/scm-script-plugin',
    },
  },
};

const branchwpPlugin: Plugin = {
  name: 'scm-branchwp-plugin',
  bundles: ['/scm/branchwp-plugin.bundle.js'],
  type: 'Miscellaneous',
  version: '2.0.0-SNAPSHOT',
  author: 'Sebastian Sdorra',
  description: 'This plugin adds branch write protection for plugins.',
  _links: {
    self: {
      href: 'http://localhost:8081/api/v2/ui/plugins/scm-branchwp-plugin',
    },
  },
};

const pluginCollectionWithNames: PluginCollection = {
  _links: {
    self: {
      href: 'http://localhost:8081/api/v2/ui/plugins',
    },
  },
  _embedded: {
    plugins: [groupManagerPlugin.name, scriptPlugin.name, branchwpPlugin.name],
  },
};

const pluginCollection: PluginCollection = {
  _links: {
    self: {
      href: 'http://localhost:8081/api/v2/ui/plugins',
    },
  },
  _embedded: {
    plugins: [groupManagerPlugin, scriptPlugin, branchwpPlugin],
  },
};

describe('plugins fetch', () => {
  const URL = 'ui/plugins';
  const PLUGINS_URL = '/api/v2/ui/plugins';
  const mockStore = configureMockStore([thunk]);

  afterEach(() => {
    fetchMock.reset();
    fetchMock.restore();
  });

  it('should successfully fetch plugins from link', () => {
    fetchMock.getOnce(PLUGINS_URL, pluginCollection);

    const expectedActions = [
      {
        type: FETCH_PLUGINS_PENDING,
      },
      {
        type: FETCH_PLUGINS_SUCCESS,
        payload: pluginCollection,
      },
    ];

    const store = mockStore({});
    return store.dispatch(fetchPluginsByLink(URL)).then(() => {
      expect(store.getActions()).toEqual(expectedActions);
    });
  });

  it('should dispatch FETCH_PLUGINS_FAILURE if request fails', () => {
    fetchMock.getOnce(PLUGINS_URL, {
      status: 500,
    });

    const store = mockStore({});
    return store.dispatch(fetchPluginsByLink(URL)).then(() => {
      const actions = store.getActions();
      expect(actions[0].type).toEqual(FETCH_PLUGINS_PENDING);
      expect(actions[1].type).toEqual(FETCH_PLUGINS_FAILURE);
      expect(actions[1].payload).toBeDefined();
    });
  });

  it('should successfully fetch scm-groupmanager-plugin by name', () => {
    fetchMock.getOnce(
      PLUGINS_URL + '/scm-groupmanager-plugin',
      groupManagerPlugin,
    );

    const expectedActions = [
      {
        type: FETCH_PLUGIN_PENDING,
        payload: {
          name: 'scm-groupmanager-plugin',
        },
        itemId: 'scm-groupmanager-plugin',
      },
      {
        type: FETCH_PLUGIN_SUCCESS,
        payload: groupManagerPlugin,
        itemId: 'scm-groupmanager-plugin',
      },
    ];

    const store = mockStore({});
    return store
      .dispatch(fetchPluginByName(URL, 'scm-groupmanager-plugin'))
      .then(() => {
        expect(store.getActions()).toEqual(expectedActions);
      });
  });

  it('should dispatch FETCH_PLUGIN_FAILURE, if the request for scm-groupmanager-plugin by name fails', () => {
    fetchMock.getOnce(PLUGINS_URL + '/scm-groupmanager-plugin', {
      status: 500,
    });

    const store = mockStore({});
    return store
      .dispatch(fetchPluginByName(URL, 'scm-groupmanager-plugin'))
      .then(() => {
        const actions = store.getActions();
        expect(actions[0].type).toEqual(FETCH_PLUGIN_PENDING);
        expect(actions[1].type).toEqual(FETCH_PLUGIN_FAILURE);
        expect(actions[1].payload.name).toBe('scm-groupmanager-plugin');
        expect(actions[1].payload.error).toBeDefined();
        expect(actions[1].itemId).toBe('scm-groupmanager-plugin');
      });
  });

  it('should successfully fetch scm-groupmanager-plugin', () => {
    fetchMock.getOnce(
      'http://localhost:8081/api/v2/ui/plugins/scm-groupmanager-plugin',
      groupManagerPlugin,
    );

    const expectedActions = [
      {
        type: FETCH_PLUGIN_PENDING,
        payload: {
          name: 'scm-groupmanager-plugin',
        },
        itemId: 'scm-groupmanager-plugin',
      },
      {
        type: FETCH_PLUGIN_SUCCESS,
        payload: groupManagerPlugin,
        itemId: 'scm-groupmanager-plugin',
      },
    ];

    const store = mockStore({});
    return store.dispatch(fetchPluginByLink(groupManagerPlugin)).then(() => {
      expect(store.getActions()).toEqual(expectedActions);
    });
  });

  it('should dispatch FETCH_PLUGIN_FAILURE, it the request for scm-groupmanager-plugin fails', () => {
    fetchMock.getOnce(
      'http://localhost:8081/api/v2/ui/plugins/scm-groupmanager-plugin',
      {
        status: 500,
      },
    );

    const store = mockStore({});
    return store.dispatch(fetchPluginByLink(groupManagerPlugin)).then(() => {
      const actions = store.getActions();
      expect(actions[0].type).toEqual(FETCH_PLUGIN_PENDING);
      expect(actions[1].type).toEqual(FETCH_PLUGIN_FAILURE);
      expect(actions[1].payload.name).toBe('scm-groupmanager-plugin');
      expect(actions[1].payload.error).toBeDefined();
      expect(actions[1].itemId).toBe('scm-groupmanager-plugin');
    });
  });
});

describe('plugins reducer', () => {
  it('should return empty object, if state and action is undefined', () => {
    expect(reducer()).toEqual({});
  });

  it('should return the same state, if the action is undefined', () => {
    const state = {
      x: true,
    };
    expect(reducer(state)).toBe(state);
  });

  it('should return the same state, if the action is unknown to the reducer', () => {
    const state = {
      x: true,
    };
    expect(
      reducer(state, {
        type: 'EL_SPECIALE',
      }),
    ).toBe(state);
  });

  it("should store the plugins by it's type and name on FETCH_PLUGINS_SUCCESS", () => {
    const newState = reducer({}, fetchPluginsSuccess(pluginCollection));
    expect(newState.list._embedded.plugins).toEqual([
      'scm-groupmanager-plugin',
      'scm-script-plugin',
      'scm-branchwp-plugin',
    ]);
    expect(newState.byNames['scm-groupmanager-plugin']).toBe(
      groupManagerPlugin,
    );
    expect(newState.byNames['scm-script-plugin']).toBe(scriptPlugin);
    expect(newState.byNames['scm-branchwp-plugin']).toBe(branchwpPlugin);
  });

  it('should store the plugin at byNames', () => {
    const newState = reducer({}, fetchPluginSuccess(groupManagerPlugin));
    expect(newState.byNames['scm-groupmanager-plugin']).toBe(
      groupManagerPlugin,
    );
  });
});

describe('plugins selectors', () => {
  const error = new Error('something went wrong');

  it('should return the plugins collection', () => {
    const state = {
      plugins: {
        list: pluginCollectionWithNames,
        byNames: {
          'scm-groupmanager-plugin': groupManagerPlugin,
          'scm-script-plugin': scriptPlugin,
          'scm-branchwp-plugin': branchwpPlugin,
        },
      },
    };

    const collection = getPluginCollection(state);
    expect(collection).toEqual(pluginCollection);
  });

  it('should return true, when fetch plugins is pending', () => {
    const state = {
      pending: {
        [FETCH_PLUGINS]: true,
      },
    };
    expect(isFetchPluginsPending(state)).toEqual(true);
  });

  it('should return false, when fetch plugins is not pending', () => {
    expect(isFetchPluginsPending({})).toEqual(false);
  });

  it('should return error when fetch plugins did fail', () => {
    const state = {
      failure: {
        [FETCH_PLUGINS]: error,
      },
    };
    expect(getFetchPluginsFailure(state)).toEqual(error);
  });

  it('should return undefined when fetch plugins did not fail', () => {
    expect(getFetchPluginsFailure({})).toBe(undefined);
  });

  it('should return the plugin collection', () => {
    const state = {
      plugins: {
        byNames: {
          'scm-groupmanager-plugin': groupManagerPlugin,
        },
      },
    };

    const plugin = getPlugin(state, 'scm-groupmanager-plugin');
    expect(plugin).toEqual(groupManagerPlugin);
  });

  it('should return true, when fetch plugin is pending', () => {
    const state = {
      pending: {
        [FETCH_PLUGIN + '/scm-groupmanager-plugin']: true,
      },
    };
    expect(isFetchPluginPending(state, 'scm-groupmanager-plugin')).toEqual(
      true,
    );
  });

  it('should return false, when fetch plugin is not pending', () => {
    expect(isFetchPluginPending({}, 'scm-groupmanager-plugin')).toEqual(false);
  });

  it('should return error when fetch plugin did fail', () => {
    const state = {
      failure: {
        [FETCH_PLUGIN + '/scm-groupmanager-plugin']: error,
      },
    };
    expect(getFetchPluginFailure(state, 'scm-groupmanager-plugin')).toEqual(
      error,
    );
  });

  it('should return undefined when fetch plugin did not fail', () => {
    expect(getFetchPluginFailure({}, 'scm-groupmanager-plugin')).toBe(
      undefined,
    );
  });
});