import MockAdapter from 'axios-mock-adapter';
import { stubPerformanceWebAPI } from 'helpers/performance';
import { TEST_HOST } from 'helpers/test_constants';
import testAction from 'helpers/vuex_action_helper';
import { createRouter } from '~/ide/ide_router';
import service from '~/ide/services';
import { createStore } from '~/ide/stores';
import { showTreeEntry, getFiles, setDirectoryData } from '~/ide/stores/actions/tree';
import * as types from '~/ide/stores/mutation_types';
import axios from '~/lib/utils/axios_utils';
import { file, createEntriesFromPaths } from '../../helpers';

describe('Multi-file store tree actions', () => {
  let projectTree;
  let mock;
  let store;
  let router;

  const basicCallParameters = {
    endpoint: 'rootEndpoint',
    projectId: 'abcproject',
    branch: 'main',
    branchId: 'main',
    ref: '12345678',
  };

  beforeEach(() => {
    stubPerformanceWebAPI();

    store = createStore();
    router = createRouter(store);
    jest.spyOn(router, 'push').mockImplementation();

    mock = new MockAdapter(axios);

    store.state.currentProjectId = 'abcproject';
    store.state.currentBranchId = 'main';
    store.state.projects.abcproject = {
      web_url: '',
      path_with_namespace: 'foo/abcproject',
    };
  });

  afterEach(() => {
    mock.restore();
  });

  describe('getFiles', () => {
    describe('success', () => {
      beforeEach(() => {
        jest.spyOn(service, 'getFiles');

        mock
          .onGet(/(.*)/)
          .replyOnce(200, [
            'file.txt',
            'folder/fileinfolder.js',
            'folder/subfolder/fileinsubfolder.js',
          ]);
      });

      it('calls service getFiles', () => {
        return store.dispatch('getFiles', basicCallParameters).then(() => {
          expect(service.getFiles).toHaveBeenCalledWith('foo/abcproject', '12345678');
        });
      });

      it('adds data into tree', async () => {
        await store.dispatch('getFiles', basicCallParameters);
        projectTree = store.state.trees['abcproject/main'];

        expect(projectTree.tree.length).toBe(2);
        expect(projectTree.tree[0].type).toBe('tree');
        expect(projectTree.tree[0].tree[1].name).toBe('fileinfolder.js');
        expect(projectTree.tree[1].type).toBe('blob');
        expect(projectTree.tree[0].tree[0].tree[0].type).toBe('blob');
        expect(projectTree.tree[0].tree[0].tree[0].name).toBe('fileinsubfolder.js');
      });
    });

    describe('error', () => {
      it('dispatches error action', async () => {
        const dispatch = jest.fn();

        store.state.projects = {
          'abc/def': {
            web_url: `${TEST_HOST}/files`,
            branches: {
              'main-testing': {
                commit: {
                  id: '12345',
                },
              },
            },
          },
        };
        const getters = {
          findBranch: () => store.state.projects['abc/def'].branches['main-testing'],
        };

        mock.onGet(/(.*)/).replyOnce(500);

        await expect(
          getFiles(
            {
              commit() {},
              dispatch,
              state: store.state,
              getters,
            },
            {
              projectId: 'abc/def',
              branchId: 'main-testing',
            },
          ),
        ).rejects.toEqual(new Error('Request failed with status code 500'));
        expect(dispatch).toHaveBeenCalledWith('setErrorMessage', {
          text: 'An error occurred while loading all the files.',
          action: expect.any(Function),
          actionText: 'Please try again',
          actionPayload: { projectId: 'abc/def', branchId: 'main-testing' },
        });
      });
    });
  });

  describe('toggleTreeOpen', () => {
    let tree;

    beforeEach(() => {
      tree = file('testing', '1', 'tree');
      store.state.entries[tree.path] = tree;
    });

    it('toggles the tree open', async () => {
      await store.dispatch('toggleTreeOpen', tree.path);
      expect(tree.opened).toBe(true);
    });
  });

  describe('showTreeEntry', () => {
    beforeEach(() => {
      const paths = [
        'grandparent',
        'ancestor',
        'grandparent/parent',
        'grandparent/aunt',
        'grandparent/parent/child.txt',
        'grandparent/aunt/cousing.txt',
      ];

      Object.assign(store.state.entries, createEntriesFromPaths(paths));
    });

    it('opens the parents', () => {
      return testAction(
        showTreeEntry,
        'grandparent/parent/child.txt',
        store.state,
        [{ type: types.SET_TREE_OPEN, payload: 'grandparent/parent' }],
        [{ type: 'showTreeEntry', payload: 'grandparent/parent' }],
      );
    });
  });

  describe('setDirectoryData', () => {
    it('sets tree correctly if there are no opened files yet', () => {
      const treeFile = file({ name: 'README.md' });
      store.state.trees['abcproject/main'] = {};

      return testAction(
        setDirectoryData,
        { projectId: 'abcproject', branchId: 'main', treeList: [treeFile] },
        store.state,
        [
          {
            type: types.SET_DIRECTORY_DATA,
            payload: {
              treePath: 'abcproject/main',
              data: [treeFile],
            },
          },
          {
            type: types.TOGGLE_LOADING,
            payload: {
              entry: {},
              forceValue: false,
            },
          },
        ],
        [],
      );
    });
  });
});