const { setDatabaseContents } = TestHelpers.database;

describe('database()', () => {
  describe('Snapshot', () => {
    before(() => setDatabaseContents());

    it('should provide a functioning val() method', async () => {
      const { Array } = bridge.context.window;
      const snapshot = await firebase
        .database()
        .ref('tests/types/array')
        .once('value');

      snapshot.val.should.be.a.Function();
      // eslint-disable-next-line
      snapshot.val().should.eql(new Array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9));
    });

    it('should provide a functioning child() method', async () => {
      const snapshot = await firebase
        .database()
        .ref('tests/types/array')
        .once('value');

      snapshot.child('0').val.should.be.a.Function();
      snapshot
        .child('0')
        .val()
        .should.equal(0);
      snapshot.child('0').key.should.be.a.String();
      snapshot.child('0').key.should.equal('0');
    });

    // TODO refactor
    // it('should provide a functioning hasChild() method', () =>
    //   new Promise((resolve, reject) => {
    //     const successCb = tryCatch(snapshot => {
    //       snapshot.hasChild.should.be.a.Function();
    //       snapshot.hasChild('foo').should.equal(true);
    //       snapshot.hasChild('baz').should.equal(false);
    //       resolve();
    //     }, reject);

    //     firebase
    //       .database()
    //       .ref('tests/types/object')
    //       .once('value', successCb, reject);
    //   }));

    // it('should provide a functioning hasChildren() method', () =>
    //   new Promise((resolve, reject) => {
    //     const successCb = tryCatch(snapshot => {
    //       snapshot.hasChildren.should.be.a.Function();
    //       snapshot.hasChildren().should.equal(true);
    //       snapshot
    //         .child('foo')
    //         .hasChildren()
    //         .should.equal(false);
    //       resolve();
    //     }, reject);

    //     firebase
    //       .database()
    //       .ref('tests/types/object')
    //       .once('value', successCb, reject);
    //   }));

    // it('should provide a functioning exists() method', () =>
    //   new Promise((resolve, reject) => {
    //     const successCb = tryCatch(snapshot => {
    //       snapshot.exists.should.be.a.Function();
    //       snapshot.exists().should.equal(false);
    //       resolve();
    //     }, reject);

    //     firebase
    //       .database()
    //       .ref('tests/types/object/baz/daz')
    //       .once('value', successCb, reject);
    //   }));

    // it('should provide a functioning getPriority() method', () =>
    //   new Promise((resolve, reject) => {
    //     const successCb = tryCatch(snapshot => {
    //       snapshot.getPriority.should.be.a.Function();
    //       snapshot.getPriority().should.equal(666);
    //       snapshot.val().should.eql({ foo: 'bar' });
    //       resolve();
    //     }, reject);

    //     const ref = firebase.database().ref('tests/priority');
    //     ref.once('value', successCb, reject);
    //   }));

    // it('should provide a functioning forEach() method', () =>
    //   // TODO this doesn't really test that the key order returned is in correct order
    //   new Promise((resolve, reject) => {
    //     const successCb = tryCatch(snapshot => {
    //       let total = 0;
    //       snapshot.forEach.should.be.a.Function();
    //       snapshot.forEach(childSnapshot => {
    //         const val = childSnapshot.val();
    //         total += val;
    //         return val === 3; // stop iteration after key 3
    //       });

    //       total.should.equal(6); // 0 + 1 + 2 + 3 = 6
    //       resolve();
    //     }, reject);

    //     firebase
    //       .database()
    //       .ref('tests/types/array')
    //       .once('value', successCb, reject);
    //   }));

    // it('should provide a key property', () =>
    //   new Promise((resolve, reject) => {
    //     const successCb = tryCatch(snapshot => {
    //       snapshot.key.should.be.a.String();
    //       snapshot.key.should.equal('array');
    //       resolve();
    //     }, reject);

    //     firebase
    //       .database()
    //       .ref('tests/types/array')
    //       .once('value', successCb, reject);
    //   }));
  });
});