var mongoose = require('mongoose');

const _ = require('lodash');

const tools = require('../tools/general');

mongoose.Promise = global.Promise;
mongoose.level = "F";

// Resolving error Unknown modifier: $pushAll
mongoose.plugin(schema => {
  schema.options.usePushEach = true
});

mongoose.set('debug', process.env.DEBUG);

var TodoSchema = new mongoose.Schema({
  userId: {
    type: String,
  },
  pos: {
    type: Number,
  },
  category: {
    type: String,
  },
  descr: {
    type: String,
  },
  priority: {
    type: Number,
  },
  completed: {
    type: Boolean,
    default: false
  },
  created_at: {
    type: Date
  },
  modify_at: {
    type: Date
  },
  completed_at: {
    type: Date
  },
  expiring_at: {
    type: Date,
  },
  enableExpiring: {
    type: Boolean,
    default: false
  },
  id_prev: {
    type: String,
  },
  progress: {
    type: Number,
  },
  modified: {
    type: Boolean,
  },
});

TodoSchema.methods.toJSON = function () {
  var todo = this;
  var todoObject = todo.toObject();

  // console.log(todoObject);

  return _.pick(todoObject, tools.allfieldTodoWithId());
};


TodoSchema.statics.findByUserIdAndCat = function (userId, category) {
  var Todo = this;

  return Todo.find({
    'userId': userId,
    'category': category,
  });
};

TodoSchema.statics.findAllByUserIdAndCat = function (userId, category = '') {
  var Todo = this;

  if (category === '') {
    return Todo.find({
      'userId': userId,
    }).then(ris => {
      return tools.mapSort(ris)
    })

  } else {
    return Todo.find({
      'userId': userId,
      'category': category,
    });
  }
};

TodoSchema.statics.getArrCategoryInTable = function (userId) {
  var Todo = this;

  return Todo.find({ 'userId': userId }).distinct("category")
    .then(arrcategory => {
      return arrcategory
    })

};

TodoSchema.statics.getAllTodo = async function (userId) {
  var Todo = this;

  const arralltodo = await Todo.findAllByUserIdAndCat(userId);
  // console.log('arralltodo', );

  let obj = [];

  obj.arrcategories = await Todo.getArrCategoryInTable(userId);

  const arrtodos = [];
  if (obj.arrcategories.length > 0) {
    for (let mycat in obj.arrcategories) {
      arrtodos.push(arralltodo.filter(item => item.category === obj.arrcategories[mycat]))
    }
  }

  obj.arrtodos = arrtodos;

  // console.log('obj', obj);

  return obj;

};

TodoSchema.pre('save', function (next) {
  // var todo = this;

  // console.log('todo.expiring_at', todo.expiring_at);

  next();
});



var Todo = mongoose.model('Todos', TodoSchema);

module.exports = { Todo };