const utils = require('./utils');
const db = require("./db");
const ordermgr = require('./ordermgr');
const bc = require('./blockchain');

const UNPAID_STATE = 0; //未支付
const PAID_STATE = 1; //已支付

class BoxOrder {

  constructor(orderDb, isNewOrder) {
    this.isNewOrder = isNewOrder;
    this.orderDb = orderDb;
  }

  init () {
    if (this.isNewOrder) {
      setTimeout(this.start.bind(this), 1000 * 0.1 + Math.floor(Math.random() * 100));
    } else {
      setTimeout(this.start.bind(this), 1000 * 1 + Math.floor(Math.random() * 1000 * 3));
    }
  }

  async start() {
    if (this.isPaid()) {
      //尝试修复已经支付成功订单的t_box表关系
      await this.repairPaidOrder();
      ordermgr.removePendingOrder(this.getOrderId());
      return;
    }
    if (this.isExpired()) {
      //尝试修复已过期订单的t_box表关系
      await this.repairExpiredOrder();
      ordermgr.removePendingOrder(this.getOrderId());
      return;
    }
    if (!this.isSynced()) {
      //上链
      await this.blockChainSync();
    }
    //等待确认支付成功
    await this.blockChainConfirm();
  }

  async repairPaidOrder() {

  }

  async repairExpiredOrder() {

  }

  async blockChainSync() {
    let syncFunc = async () => {
      let result = await bc.mallInstance.methods.buyBoxWithSignature(
        boxId,
        type,
        buyerAddress,
        price,
        paymentTokenAddress,
        nonce,
        signature).send({gas: 1000000});
    };
    while (true) {
      await utils.sleep(1000 * 3);
    }
  }

  async blockChainConfirm() {
    while (true) {
      await utils.sleep(1000 * 3);
    }
  }

  getOrderId() {
    return this.orderDb['order_id'];
  }

  isExpired() {
    return this.orderDb['expired'];
  }

  isPaid() {
    return this.orderDb['state'] == PAID_STATE;
  }

  isSynced() {
    return this.orderDb['self_node_confirm_time'] > 0;
  }

};

exports.BoxOrder = BoxOrder;