import * as _ from 'lodash';

import { Transaction } from './transaction';



export class Account {

  public balance: number = 0;
  private numTransactions: number;

  public static fromJson (obj: any) {
    const items = _.orderBy(_.chain(obj.transactions).values().map(Transaction.fromJson).value(), ['created']);
    return new Account(Number(obj.numTransactions), obj.id, obj.code, obj.userId, obj.type, obj.status, obj.name, obj.currency
                      , items, obj.created);
  }
  // _.orderBy(activity, ['date'], ['desc']);

  public toJson() {
    const accountJson: any = {
        // __v: '',
        id: this.id,
        code: this.code,
        userId: this.userId,
        type: this.type,
        status: this.status,
        name: this.name,
        currency: this.currency,
        // tenantId: '',
        // created: '',
        transactions: [] , // carItems to json
        numTransactions: this.getItemsCount(),
        balance: this.getbalance(),
        created: this.created
        // storeId: this.storeId,
    };

    return accountJson;
  }


  //  {
  //    “id”: “590daf9118ce43c57ea18c24”, #
  //    “userId”: “57ad4788840868525b18f489”, #
  //    “created”: “2017-05-06T11:12:17.605Z”, !
  //    “status”: “active”, !
  //    “transactions”: [], #
  //    “numTransactions”: 0, #
  //    “balance”: 0, #
  //    “type”: “wallet” #
  //  }
  constructor(
       numTransactions: number
      // , public storeId?: string // TODO should be a Store instance when we have that
      // , public tenantId?: string
      , public id: string
      , public code: string
      , public userId: string
      , public type: string
      , public status: string
      , public name: string
      , public currency: string
      , public transactions: Transaction[]
      // , public status: string
      , public created: string
    ) {
        this.numTransactions = (_.isUndefined(numTransactions) || numTransactions == null? this.transactions.length : numTransactions );
        this.calculatebalance();
        if (this.id === undefined) { this.id = ''; }
  }

  public calculatebalance() {
    this.balance = 0;
    this.transactions.forEach( (transaction: Transaction) => {
      this.balance += transaction.getCost();
      // this.balance += transaction.getCost();
    });
  }

  setItemsCount() { this.numTransactions = this.transactions.length; }

	getItemsCount() 		{ return this.numTransactions;                 }
	getType()     		  { return this.type;                     }
  getTransactions()  	{ return this.transactions;             }
  getbalance()   	    { return this.balance;                  }

}