import React, { Component } from "react"
import { Flex, List, WingBlank, Toast } from "antd-mobile"
import { OrderItem } from "src/common/index"
import { Link } from "react-router-dom"
import { http, getParam } from "src/utils"
import { throttle } from "lodash"
import { HeaderBar } from "../../common"
import { connect } from "react-redux"

import "./order.scss"

const Item = List.Item

function OrderList(props) {
  const listData = props.list
  return (
    <div>
      {listData.map((item, index) => {
        const {
          course_id,
          image_name,
          price1,
          price0,
          simpledescription,
          course_title,
          coupon_num,
          coupon_desc,
        } = item
        let NewPrice = <span className="order-newprice">¥{price1}</span>
        if (props.locationState && props.locationState.group) {
          NewPrice = <span className="order-newprice">¥{props.groupPrice}</span>
        }
        const Info = (
          <div className="order-info">
            {/* <Link to={`/detail?id=${course_id}`}> */}
            <p
              className="order-title"
              style={{
                overflow: "hidden",
                textOverflow: "ellipsis",
                whiteSpace: "nowrap",
              }}
              onClick={() => props.toDetail(course_id)}
            >
              {course_title}
            </p>
            {/* </Link> */}
            <p
              className="order-content"
              style={{
                WebkitBoxOrient: "vertical",
                WebkitLineClamp: "2",
                wordBreak: "break-all",
                overflow: "hidden",
                textOverflow: "ellipsis",
                display: "-webkit-box",
              }}
            >
              {simpledescription}
            </p>
            <p className="order-des">
              {/*// 这里根据类型判断 来显示什么价格 拼团还是砍价 还是特训营*/}
              {/*{*/}
              {/*  props.courseId === undefined ? (<span className='order-newprice'>¥{price1}</span>) : (<span className='order-newprice'>¥{price0}</span>)*/}
              {/*}*/}
              {NewPrice}
              <span className="order-price">¥{price0}</span>
            </p>
          </div>
        )

        return (
          <OrderItem
            {...item}
            src={image_name}
            id={course_id}
            key={index}
            info={Info}
            isaist={props.isaist}
            toDetail={props.toDetail}
          >
            {props.locationState &&
            (props.locationState.type || props.locationState.simple) ? (
              <div className="order-prefer">
                <List key={index}>
                  <Item arrow="horizontal" onClick={() => {}}>
                    <Link
                      to={{
                        pathname: `/coupons`,
                        search: `?id=${course_id}`,
                        state: {
                          from: "/order",
                        },
                      }}
                    >
                      {/* <Link to='coupons' query={{id: course_id}} state={{from: '/order'}}> */}
                      <Flex justify="between">
                        <span
                          style={{
                            color: "#333",
                            fontSize: "15px",
                          }}
                        >
                          优惠券
                        </span>
                        <span
                          style={{
                            fontSize: "14px",
                            color: "#999999",
                          }}
                        >
                          {!coupon_desc
                            ? coupon_num === 0
                              ? "无"
                              : `${coupon_num}张可用`
                            : coupon_desc}
                        </span>
                      </Flex>
                    </Link>
                  </Item>
                </List>
              </div>
            ) : null}
          </OrderItem>
        )
      })}
    </div>
  )
}

@connect()
class Order extends Component {
  constructor(props) {
    super(props)
    this.state = {
      groupPrice: "",
      perfect: this.props.location.state,
      user_account: 0.0, // 账户余额
      total: 0.0, // 需要支付总金额
      discount: 0.0, //
      useBalance: false,
      orderList: [],
      info: false,
      offset: 0,
      full_amount: 0, // 满金额
      cut_amount: 0, // 减金额
    }
  }

  // 提交订单
  submitOrder = () => {
    if (this.state.orderList.length === 0) {
      Toast.info("没有要提交的订单！")
      return
    }
    if (!this.state.perfect) {
      Toast.info("请完善报名信息！")
    }
    const {
      location: { state = {} },
    } = this.props

    if (state.group === 1) {
      let params = state.pdd_order_id
        ? {
            course_id: getParam("id"),
            ischeck: this.state.useBalance,
            pdd_order_id: state.pdd_order_id,
          }
        : {
            course_id: getParam("id"),
            ischeck: this.state.useBalance,
          }
      http.post(`${API["base-api"]}/pdd/m`, params).then((res) => {
        if (Number(res.data.errno) === 200) {
          sessionStorage.removeItem("orderUseCacheObj")
          if (res.data.data.pay_jump === 1) {
            this.props.history.push(`/togroup?id=${res.data.data.oid}`)
            return
          }
          this.props.history.push(`/payorder?oid=${res.data.data.oid}`, {
            group: 1,
          })
        } else if (Number(res.data.errno) === 0) {
          Toast.info(res.data.data.msg, 2)
          return
        } else {
          Toast.info(res.data.msg, 2)
          return
        }
      })
    } else {
      let url = `${API["base-api"]}/m/v34/cart/order?ischeck=${this.state.useBalance}`
      if (this.props.location.state && this.props.location.state.type === 1) {
        url += "&type=1"
      }
      http.get(url).then((res) => {
        if (res.data.errno !== 0) {
          Toast.info(res.data.msg, 2)
          return
        }
        sessionStorage.removeItem("orderUseCacheObj")
        if (res.data.data.is_free === 1) {
          this.props.history.replace(`/purchased`)
          return
        }
        this.props.history.replace(`/payorder?oid=${res.data.data.order_id}`)
      })
    }
  }
  // 勾选取消勾选 是否使用余额
  useBalance = () => {
    let useBalanceFlag = this.state.useBalance
    this.setState({
      useBalance: !useBalanceFlag,
    })
    if (!useBalanceFlag) {
      this.cacheObj = {
        ...this.state,
      }
      sessionStorage.setItem("orderUseCacheObj", JSON.stringify(this.state))
    } else {
      sessionStorage.removeItem("orderUseCacheObj")
    }
    this.computedMoney(useBalanceFlag)
  }
  // 勾选取消勾选时：计算金额、优惠金额、优惠券等
  computedMoney = (useBalanceFlag) => {
    let totalSale = parseFloat(this.cacheObj.total),
      userAccount = parseFloat(this.cacheObj.user_account)
    const { discount } = this.state
    if (!useBalanceFlag) {
      if (totalSale > userAccount) {
        this.setState({
          offset: userAccount.toFixed(2),
          total: (totalSale - userAccount).toFixed(2),
          discount: (userAccount + parseFloat(discount)).toFixed(2),
        })
      } else {
        this.setState({
          offset: totalSale.toFixed(2),
          total: 0,
          discount: (totalSale + parseFloat(discount)).toFixed(2),
        })
      }
    } else {
      this.setState({
        offset: this.cacheObj.offset,
        total: this.cacheObj.total,
        discount: this.cacheObj.discount,
      })
    }
  }
  // 选择优惠券返回时根据是否勾选计算
  computedMoneyByCache = () => {
    let totalSale = parseFloat(this.cacheObj.total),
      userAccount = parseFloat(this.cacheObj.user_account),
      discount = parseFloat(this.cacheObj.discount)
    if (totalSale > userAccount) {
      this.setState({
        offset: userAccount.toFixed(2),
        total: (totalSale - userAccount).toFixed(2),
        discount: (discount + userAccount).toFixed(2),
      })
    } else {
      this.setState({
        offset: totalSale.toFixed(2),
        total: 0,
        discount: totalSale.toFixed(2),
      })
    }
  }
  // 展示余额抵扣规则
  showInfo = () => {
    this.setState((prevState) => ({
      info: !prevState.info,
    }))
  }

  // 公共方法 存储数据
  publicGetData = (res) => {
    let { course, total, user_account, user_info, discount } = res
    if (this.props.location.state && this.props.location.state.group === 1) {
      total = this.state.groupPrice
    }
    this.cacheObj = {
      perfect: user_info,
      orderList: course,
      user_account,
      total,
      discount,
    }
    this.setState({
      perfect: user_info,
      orderList: course,
      user_account,
      total,
      discount,
    })
  }
  fullRules = (data) => {
    this.setState({
      full_amount: data.full_amount,
      cut_amount: data.cut_amount,
    })
  }
  // 公共方法 本地存储
  publicLocalStorage = () => {
    if (this.props.history.action === "PUSH") {
      sessionStorage.removeItem("orderUseCacheObj")
      this.setState({
        discount: 0.0,
      })
    } else {
      const cacheObj = sessionStorage.getItem("orderUseCacheObj")
      if (cacheObj !== null) {
        this.setState({
          useBalance: true,
        })
        this.computedMoneyByCache()
      }
    }
  }

  componentDidMount() {
    // type: 1,返现课程，simple: 1,正常购买
    if (this.props.location.state && this.props.location.state.type === 1) {
      http.get(`${API["base-api"]}/m/order/preorder?type=1`).then((res) => {
        if (res.data.errno === 200) {
          this.publicGetData(res.data.data)
          this.publicLocalStorage()
        } else {
          Toast.info(res.data.msg, 2)
        }
      })
    } else if (
      this.props.location.state &&
      (this.props.location.state.simple === 1 ||
        this.props.location.state.bargain === 1)
    ) {
      // 普通课程立即报名 不带 type = 1
      http.get(`${API["base-api"]}/m/order/preorder`).then((res) => {
        if (res.data.errno === 200) {
          console.log(res.data.data)
          this.publicGetData(res.data.data)
          this.publicLocalStorage()

          this.fullRules(res.data.data)
        } else {
          Toast.info(res.data.msg, 2)
        }
      })
    } else if (
      this.props.location.state &&
      this.props.location.state.group === 1
    ) {
      // 获取一键开团的课程
      Promise.all([
        http.get(`${API.home}/m/course/detail/${getParam("id")}`),
        http.get(`${API["base-api"]}/m/order/preorder`),
      ]).then((resList) => {
        let courseInfo = resList[0],
          orderInfo = resList[1]
        let newData = {}
        if (orderInfo.data.errno === 200) {
          newData = Object.assign({}, orderInfo.data.data, { course: [] })
        } else {
          Toast.info(orderInfo.data.msg, 2)
          return
        }
        if (courseInfo.data.code === 200) {
          newData.course.push(courseInfo.data.data.course_info)
          this.setState({
            groupPrice: courseInfo.data.data.course_info.pdd_group_info.price,
          })
        } else {
          Toast.info(courseInfo.data.msg, 2)
          return
        }
        this.publicGetData(newData)
        this.publicLocalStorage()
      })
    } else {
      http.get(`${API["base-api"]}/m/order/preorder`).then((res) => {
        console.log("为了验证什么条件下会走这段代码")
        if (res.data.errno !== 200) {
          Toast.info(res.data.msg, 2)
          return
        }

        this.publicGetData(res.data.data)
        this.publicLocalStorage()
      })
    }
  }

  toCourseDetail = (id) => {
    const { history } = this.props
    history.push(`/detail?id=${id}`)
  }

  render() {
    const {
      perfect,
      orderList,
      user_account,
      total,
      discount,
      useBalance,
      info,
      offset,
      groupPrice,
      full_amount,
      cut_amount,
    } = this.state

    return (
      <div className="order-wrapper">
        <Flex>
          <Flex.Item>
            <HeaderBar title="课程报名" arrow={true} />
            <div className="order-list">
              <OrderList
                list={orderList}
                compute={this.computedMoney}
                courseId={getParam("id")}
                locationState={this.props.location.state}
                groupPrice={groupPrice}
                toDetail={this.toCourseDetail}
              />
            </div>
            <div className="order-balance">
              <List>
                <Item className="order-prefer-text">
                  <Flex justify="between">
                    <Flex align="center">
                      <span>余额抵扣</span>
                      <span className="order-balanceprice">
                        {" "}
                        (余额:{" "}
                        <i className="order-money">{`${user_account}元`}</i>)
                      </span>
                      <i
                        className="iconfont iconiconfront-22 question-mark"
                        onClick={this.showInfo}
                      ></i>
                    </Flex>

                    <Flex>
                      {useBalance ? (
                        <>
                          <span
                            style={{
                              color: "#FF2121",
                              fontSize: "15px",
                              marginRight: "6px",
                            }}
                          >{`-¥${offset}`}</span>
                          <i
                            className={`iconfont icondanseshixintubiao-5 balance-used`}
                            onClick={throttle(this.useBalance, 600)}
                          ></i>
                        </>
                      ) : (
                        <i
                          className="circle-icon"
                          onClick={throttle(this.useBalance, 600)}
                        ></i>
                      )}
                    </Flex>
                  </Flex>
                </Item>
              </List>
            </div>
            {full_amount > 0 && cut_amount > 0 ? (
              <>
                <div className="full__rules">
                  <WingBlank>
                    <div className="money__off">
                      <span>
                        满{full_amount}减{cut_amount}：
                      </span>
                      <span className="money">{`-￥${cut_amount}`}</span>
                    </div>
                  </WingBlank>
                </div>
              </>
            ) : null}
            <div className="order-bar">
              <div className="order-course">
                <span className="order-course-text">{`${orderList.length}门课程`}</span>
              </div>
              <div className="order-bar-text">
                <div className="order-amount">
                  <span className="order-amount-title">合计:</span>
                  <span className="order-amount-price">{`￥${total}`}</span>
                </div>
                <div className="order-preprice">
                  <span className="order-preprice-title">已优惠:</span>
                  <span className="order-preprice-price">{`¥${discount}`}</span>
                </div>
              </div>
              {perfect ? (
                <button type="button" className="order-button has-info">
                  <span
                    className="order-button-text"
                    onClick={this.submitOrder}
                  >
                    提交订单
                  </span>
                </button>
              ) : (
                <button type="button" className="order-button">
                  <span
                    className="order-button-text"
                    onClick={this.submitOrder}
                  >
                    提交订单
                  </span>
                </button>
              )}
            </div>
          </Flex.Item>
        </Flex>
        {info ? (
          <div
            style={{
              position: "fixed",
              top: 0,
              left: 0,
              width: "100%",
              height: "100%",
              backgroundColor: "rgba(0, 0, 0, 0.8)",
              zIndex: "99",
            }}
          >
            <div
              style={{
                padding: "20px",
                backgroundColor: "#FFF",
                width: "300px",
                height: "170px",
                margin: "0 auto",
                position: "absolute",
                left: "50%",
                top: "50%",
                transform: "translate(-50%, -50%)",
              }}
            >
              <Flex
                direction="column"
                justify="between"
                align="center"
                style={{ height: "100%" }}
              >
                <p style={{ fontSize: "16px", color: "#333333" }}>
                  余额抵扣说明
                </p>
                <p
                  style={{
                    lineHeight: "20px",
                    fontSize: "13px",
                    color: "#666666",
                  }}
                >
                  分销课程或者参与七月在线的相关活动，可获得资金奖励。账户资金可直接提现，也可抵扣课程费用。
                </p>
                <div
                  onClick={this.showInfo}
                  style={{
                    width: "260px",
                    height: "30px",
                    lineHeight: "30px",
                    textAlign: "center",
                    borderRadius: "3px",
                    border: "1px solid #0099FF",
                    color: "#0099FF",
                    fontSize: "15px",
                  }}
                >
                  知道了
                </div>
              </Flex>
            </div>
          </div>
        ) : null}
      </div>
    )
  }
}

export default Order