import { firestore, auth } from '../firebase.js';

//Start Firbase Auth
export const AUTH_FAIL      = 'AUTH_FAIL';
export const AUTH_SUCCESS   = 'AUTH_SUCCESS';
export const FETCH_DIVISON  = 'FETCH_DIVISON';
export const UPDATE_DIVISON = 'UPDATE_DIVISON';
export const AUTH_SIGN_OUT  = 'AUTH_SIGN_OUT';
export const CREATE_ACCOUNT = 'CREATE_ACCOUNT';
export const ADMIN_LISTENER = 'ADMIN_LISTENER';
export const IS_ADMIN       = 'IS_ADMIN';
export const ADMIN_CONTROLS = 'ADMIN_CONTROLS';
export const UPDATE_ADMIN   = 'UPDATE_ADMIN';
export const SET_USER_DATA  = 'SET_USER_DATA';



//End Firebase Auth

//Start Firebase Firestore
export const SNAPSHOT_HOURS = 'SNAPSHOT_HOURS';
export const UPDATE_HOURS   = 'UPDATE_HOURS';

export const snapshotHours = () => (dispatch, getState) => {

  const currentState  = getState().firebase;
  if(currentState.initialized) {
    var totalHours;
    var docRefUsers = firestore.collection('users').doc(currentState.uid);
    var docRefReq   = firestore.collection('requests').where('uid', '==', currentState.uid);

    docRefUsers.onSnapshot((doc) => {
      totalHours  = doc.data().hours;

      docRefReq.onSnapshot((query) => {
        var requestedHours  = 0;
        query.forEach((docs) => {
          requestedHours  += docs.data().time;
        });
        dispatch(updateHours(totalHours, requestedHours));
      });
    });
  }



}

export const updateHours = (hours, reqHours) => {
  return {
    type:           'UPDATE_HOURS',
    approvedHours:  hours,
    requestedHours: reqHours
  }
}

export const REGISTER_COMP                    = 'REGISTER_COMP';
export const SNAPSHOT_REGISTERED_COMPETITIONS = 'SNAPSHOT_REGISTERED_COMPETITIONS';
export const UPDATE_REGISTERED_COMPETITIONS   = 'UPDATE_REGISTERED_COMPETITIONS';
export const SNAPSHOT_ADMIN_COMP_LIST         = 'SNAPSHOT_ADMIN_COMP_LIST';
export const UPDATE_ADMIN_COMP_LIST           = 'UPDATE_ADMIN_COMP_LIST';



export const updateRegisteredCompetitions = (registeredComps) => {
  return {
    type:     UPDATE_REGISTERED_COMPETITIONS,
    payload:  registeredComps
  }
}

export const snapshotAdminCompList = () => (dispatch) => {
  var docRef  = firestore.collection('competitions');
  docRef.onSnapshot((querySnapshot) => {
    var compList = [];
    querySnapshot.forEach((doc) => {
      var divisonData = [];
      for(var i = 0; i < doc.data().uids.length; i++) {
        var docRefDivison = firestore.collection('users').doc(doc.data().uids[i]);
        docRefDivison.get().then((docUser) => {
          divisonData.push(docUser.data().divison);
        });
      }
      compList.push({
        ...doc.data(),
        name:     doc.id,
        divisons: divisonData
      });
    });
    dispatch(updateAdminCompList(compList));
  });
}

export const updateAdminCompList = (compList) => {
  return {
    type:     UPDATE_ADMIN_COMP_LIST,
    payload:  compList
  }
}

export const REQUEST_HOURS            = 'REQUEST_HOURS';
export const ADMIN_APPROVE_HOURS      = 'ADMIN_APPROVE_HOURS';
export const ADMIN_REJECT_HOURS       = 'ADMIN_REJECT_HOURS';
export const ADMIN_DELETE_REQUEST     = 'ADMIN_DELETE_REQUEST';
export const SNAPSHOT_ADMIN_REQUESTS  = 'SNAPSHOT_ADMIN_REQUESTS';
export const UPDATE_ADMIN_REQUESTS    = 'UPDATE_ADMIN_REQUESTS';

export const requestHours = (_time, _trainee, _date) => (dispatch, getState) => {
  var docRef    = firestore.collection('requests');
  const _uid    = getState().firebase.uid;
  const _email  = getState().firebase.userEmail;

  docRef.add({
    time:     _time,
    trainee:  _trainee,
    day:      _date,
    uid:      _uid,
    email:    _email
  });
}

export const snapshotAdminRequests = () => (dispatch) => {
  var docRef    = firestore.collection('requests');

  docRef.onSnapshot((querySnapshot) => {
    var requestList = [];
    querySnapshot.forEach((doc) => {
      requestList.push({
        ...doc.data(),
        docId: doc.id
      });
    });
    dispatch(updateAdminRequests(requestList));
  });
}

export const updateAdminRequests = (requests) => {
  return {
    type:     UPDATE_ADMIN_REQUESTS,
    payload:  requests
  }
}

export const adminApproveHours = (_uid, _time, _id) => (dispatch) => {

  var docRef    = firestore.collection('users').doc(_uid);

  docRef.get().then((doc) => {
    if(doc.exists) {
        docRef.update({
          hours:  (doc.data().hours + _time)
        }).catch((error) => {
          alert(error);
        });
    }
  });

  dispatch(adminDeleteRequest(_id));
}

export const adminRejectHours = (_id) => (dispatch) => {
  dispatch(adminDeleteRequest(_id));
}

export const adminDeleteRequest = (_id) => (dispatch) => {
  var docRef  = firestore.collection('requests').doc(_id);
  docRef.delete().then(() => {
    //console.log('Deleted request with id ' + _id);
  });
}


export const CREATE_FORUM_POST  = 'CREATE_FORUM_POST';
export const SNAPSHOT_FORUM     = 'SNAPSHOT_FORUM';
export const UPDATE_FORUM_POSTS = 'UPDATE_FORUM_POSTS';

export const createForumPost = (_subject, _content) => (dispatch, getState) => {
  var docRef      = firestore.collection('posts');
  const userEmail = getState().firebase.userEmail;

  docRef.add({
    email:    userEmail,
    subject:  _subject,
    content:  _content
  });
}

export const snapshotForums = () => (dispatch) => {
  var docRef      = firestore.collection('posts');

  docRef.onSnapshot((query) => {
    var forumPosts  = [];
    query.forEach((doc) => {
      forumPosts.push(doc.data());
    });
    dispatch(updateForumPosts(forumPosts));
  });
}

export const updateForumPosts = (_forumPosts) => {
  return {
    type:     UPDATE_FORUM_POSTS,
    payload:  _forumPosts
  }
}
//End Firebase Firestore