<template>
  <div class="markets-pair-list exchange-store bg-plain">
    <div class="nav nav-pills">
      <div class="nav-item">
        <a class="nav-link" :class="{ active: tab == 1 }" @click="tab = 1">{{
          $t("contract.d5")
        }}</a>
      </div>
      <!-- <div class="nav-item">
        <a class="nav-link" :class="{ active: tab == 2 }" @click="tab = 2">{{
          $t("contract.d6")
        }}</a>
      </div> -->
      <div class="flex-fill px-3 justify-content-end d-flex align-items-center">
        <el-popover
          placement="bottom"
          width="100"
          v-model="visible"
          trigger="manual"
        >
          <div
            class="rounded border p-1 bg-white pointer"
            slot="reference"
            @click="visible = !visible"
          >
            {{ $t("contract.b0") }}
            <span class="fn-16"> {{ form.lever_rate }}X </span>
            <i class="el-icon-edit text-primary"></i>
          </div>
          <div class="list">
            <div
              class="el-select-dropdown__item"
              @click="
                selectLever(item);
                visible = false;
              "
              v-for="item in lever_rage"
              :key="item"
            >
              {{ item }}X
            </div>
          </div>
        </el-popover>
      </div>
    </div>
    <div class="content-box px-3 ">
      <div v-if="type == 2" class="input-group my-4 input-group-sm">
        <div class="input-group-prepend">
          <span class="input-group-text">{{ $t("contract.d7") }}</span>
        </div>
        <input type="number" class="form-control" placeholder="" />
        <div class="input-group-append">
          <span class="input-group-text">USDT</span>
        </div>
      </div>
      <div class="d-flex my-4 align-items-center">
        <div class="input-group input-group-sm">
          <div class="input-group-prepend">
            <span class="input-group-text">{{ $t("contract.d8") }}</span>
          </div>
          <template v-if="form.type == 1">
            <input
              type="number"
              v-model="form.entrust_price"
              class="form-control"
              placeholder=""
            />
            <div class="input-group-append">
              <span class="input-group-text">USDT</span>
            </div>
          </template>
          <template v-if="form.type == 2">
            <input
              type="text"
              disabled
              :value="$t('contract.d9')"
              class="form-control"
              :placeholder="$t('contract.d9')"
            />
          </template>
        </div>
        <button
          @click="form.type == 1 ? (form.type = 2) : (form.type = 1)"
          class="btn btn-sm btn-outline-primary ml-2 text-nowrap"
        >
          {{ form.type == 1 ? $t("contract.e0") : $t("contract.d9") }}
        </button>
      </div>
      <div class="input-group mb-4 input-group-sm">
        <div class="input-group-prepend">
          <!-- <span class="input-group-text">{{ $t("contract.e1") }}</span> -->
          <span class="input-group-text">{{ $t("contract.l2") }}</span>
        </div>
        
        <input
            type="number"
            class="form-control"
            v-model="margin"
            :placeholder="tips"
        />
        <!-- <div class="input-group-append">
            <span class="input-group-text">{{ $t("contract.e2") }}</span>
        </div> -->
      </div>
      <div class="px-2 mb-4" v-if="this.tab == 1">
        <el-slider
            :value="activeStep"
            @input="sliderChange"
            :format-tooltip="tooltip"
            :marks="marks"
        ></el-slider>
        <!-- :step="25" -->
      </div>
      <!-- 开仓 -->
      <div v-if="tab == 1" class="kaicang">
        <div class="d-flex justify-content-between mb-3">
            <div>{{ $t("contract.e1") }}：</div>
            <!-- {{$t("contract.e2")}} -->
            <div>{{ amount }} </div>
        </div>
        <div class="d-flex justify-content-between mb-4">
          <div>{{ $t("contract.a3") }}:</div>
          <div>
            {{ accountInfo.usable_balance }} USDT
            <i
              class="el-icon-sort"
              @click="$router.push('/wallet/assets/exchange')"
            ></i>
          </div>
        </div>
      </div>
      <!-- 平仓 -->
      <div v-if="tab == 2">
        <div class="d-flex justify-content-between">
          <div>{{ $t("contract.e4") }}：</div>
          <div>{{ multiplePositions }} {{ $t("contract.e2") }}</div>
        </div>
        <div class="d-flex justify-content-between mb-4">
          <div>{{ $t("contract.e5") }}:</div>
          <div>{{ shortPosition }} {{ $t("contract.e2") }}</div>
        </div>
      </div>
      <div class="exchange_button" v-if="tab == 1">
        <div class="px-1 flex-fill mb-4">
          <button
            @click="ifOpenPosition(1)"
            type="button"
            class="sub w-24/24 btn-success btn btn-sm mb-3"
          >
            {{ $t("contract.d0") }}
            <!-- <span class="fn-12"> （{{ $t("contract.e6") }}） </span> -->
          </button>
          <div class="text-left">
            {{ $t("contract.e7") }} {{ maxNum }} 
            <!-- {{ $t("contract.e2") }} -->
          </div>
        </div>
        <div class="px-1 flex-fill">
          <button
            @click="ifOpenPosition(2)"
            type="button"
            class="sub w-24/24 btn-danger btn btn-sm mb-3"
          >
            {{ $t("contract.d2") }}
            <!-- <span class="fn-12"> （{{ $t("contract.e8") }}） </span> -->
          </button>
          <!-- <div class="text-center"> -->
          <div class="text-right">
            {{ $t("contract.e7") }} {{ maxNum }} 
            <!-- {{ $t("contract.e2") }} -->
          </div>
        </div>
      </div>
      <div class="" v-if="tab == 2">
        <div class="px-2 flex-fill mb-4">
          <button
            @click="ifOpenPosition(1)"
            type="button"
            class="sub w-24/24 btn-success  btn btn-sm"
          >
            {{ $t("contract.d3") }}
          </button>
          <div class="text-center">
            {{ $t("contract.e9") }} {{ canMore }} {{ $t("contract.e2") }}
          </div>
        </div>
        <div class="px-2 flex-fill">
          <button
            @click="ifOpenPosition(2)"
            type="button"
            class="sub w-24/24 btn-danger btn btn-sm"
          >
            {{ $t("contract.d1") }}
          </button>
          <div class="text-center">
            {{ $t("contract.e9") }} {{ canEmpty }} {{ $t("contract.e2") }}
          </div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import Contract from "@/api/contract.js";
import date from "@/utils/class/date.js";
import math from "@/utils/class/math.js";
export default {
  data() {
    return {
      tab: 1,
      type: 1,
      visible: false,
      form: {
        // 1:限价 2:市价
        type: 2,
        entrust_price: undefined,
        amount:"",
        lever_rate: ""
      },
        // 最多可开张数
        maxNum: 0,
        lever_rage: [],
        accountInfo: {},
        _time: null,
        unit_amount:0,
        marks:{
            25:'',
            50:'',
            75:''
        },
        margin:0,
    };
  },
  props: {
    symbol: {
      default: "",
      type: String,
      required: false
    },
    holdPositionList: {
      default: () => [],
      type: Array,
      required: false
    },
    defaultPrice: {
      default: "",
      type: String | Number,
      required: false
    },
    newPriceObj: {
      default: () => {},
      type: Object,
      required: false
    },
    contractOpen: {}
  },
  watch: {
    symbol() {
      this.form.entrust_price = undefined;
      this.contractAccount();
      this.getSymbolDetail();
    },
    defaultPrice(n) {
      this.form.entrust_price = n;
    },
    newPriceObj(n) {
      if (n && this.form.entrust_price === undefined) {
        this.form.entrust_price = n.price;
      }
    },
    contractOpen(n, o) {
      if (n != o) {
        this.contractAccount();
      }
    }
  },
  destroyed() {
    clearInterval(this._time);
  },
  mounted() {
    if (this.symbol) {
      this.contractAccount();

      this.getSymbolDetail();
    }
    this._time = setInterval(() => {
      if (this.symbol) {
        // if (this.contractOpen) {
          this.contractAccount(true);
        // }
      }
    }, 3000);
  },
  computed: {
    tips(){
        // return this.unit_amount?(`${this.unit_amount}USDT`):''
        return this.unit_amount?(`USDT`):''
    },
    isLogin() {
      return Boolean(localStorage.token);
    },
    // 多仓持仓
    multiplePositions() {
      let item = this.holdPositionList.find(item => item.side == 1);
      if (!item) return 0;
      return item.hold_position;
    },
    // 可平多
    canMore() {
      let item = this.holdPositionList.find(item => item.side == 1);
      if (!item) return 0;
      return item.avail_position;
    },
    // 空仓持仓
    shortPosition() {
      let item = this.holdPositionList.find(item => item.side == 2);
      if (!item) return 0;
      return item.hold_position;
    },
    // 可以平空
    canEmpty() {
      let item = this.holdPositionList.find(item => item.side == 2);
      if (!item) return 0;
      return item.avail_position;
    },
    activeStep() {
      if (!this.form.amount || !this.maxNum) return 0;
      let num = (this.form.amount / this.maxNum) * 100;
      return num;
    },
    // 保证金
    // margin() {
    //     if (!this.form.lever_rate) return '';
    //     return math.omitTo(this.form.amount*this.unit_amount / this.form.lever_rate, 4);
    // },
    amount(){
        console.info(this.form.lever_rate)
        console.info(this.margin)
        if (!this.form.lever_rate || !this.margin) return 0;
        let p=this.margin*this.form.lever_rate;
        
        this.form.amount=p;
        return p
    }
  },
  methods: {
    // 获取合约账户信息
    contractAccount(boo) {
      if (!this.isLogin) return;
      // if (!this.contractOpen) return;
      let data = {
        symbol: this.symbol
      };
      Contract.contractAccount(data).then(res => {
        this.accountInfo = res;
        this.$emit("accountInfo", res);
        if (!this.form.lever_rate) {
          this.form.lever_rate = res.lever_rate;
        }
        if (this.form.lever_rate && !boo) {
          this.openNum();
        }
      });
    },
    // 获取可开启张数
    openNum() {
      if (!this.isLogin) return;
      let data = {
        symbol: this.symbol, //ETH
        lever_rate: this.form.lever_rate //10
      };
      Contract.openNum(data).then(res => {
        this.maxNum = res;
      });
    },
    // 获取合约详情
    getSymbolDetail() {
      let data = {
        symbol: this.symbol
      };
      Contract.getSymbolDetail(data).then(res => {
        this.lever_rage = res.lever_rage;
        this.unit_amount = res.unit_amount
        this.$emit('getSymbolDetail',res)
        if (!this.form.lever_rate) {
          this.form.lever_rate = res.default_lever;
        }
      });
    },
    // 设置数量
    sliderChange($ev) {
      this.form.amount = Math.round((this.maxNum * $ev) / 100)||'';
      console.info(this.form)
      this.margin=this.form.amount/this.form.lever_rate || 0
    },
    // 选择杠杆
    selectLever(idx) {
      this.form.lever_rate = idx;
      this.openNum();
    },
    tooltip($ev) {
      return Math.round($ev) + "%";
    },
    // 提示
    ifOpenPosition(side) {
        if (this.tab == 1) {
            this.openPosition(side);
        } else {
            this.closePosition(side);
        }
    
        // let typeStr =
        //     this.form.type == 1
        //     ? `${this.form.entrust_price}${this.$t("contract.f0")}`
        //     : this.$t("contract.d9");
        // let decStr =
        //     this.tab == 1
        //     ? `${this.$t("contract.d5")}${this.form.amount}${this.$t(
        //         "contract.e2"
        //         )}${side == 1 ? this.$t("contract.f1") : this.$t("contract.f2")}`
        //     : `${this.$t("contract.d6")}${this.form.amount}${this.$t(
        //         "contract.e2"
        //         )}`;

        
            //  `${this.$t("contract.f3")}${typeStr}${this.form.lever_rate}${this.$t(
            // "contract.f4"
            // )}${decStr}?`
        // this.$confirm(
        //     `${this.$t("contract.f3")}${typeStr}${this.form.lever_rate}
        //     ${this.$t("contract.f4")}${this.$t("contract.d5")}?`
        // )
        //     .then(res => {
        //     if (this.tab == 1) {
        //         this.openPosition(side);
        //     } else {
        //         this.closePosition(side);
        //     }
        //     })
        //     .catch(res => {});
    },
    // 开仓
    openPosition(side) {
      let data = {
        side,
        symbol: this.symbol,
        ...this.form
      };
      Contract.openPosition(data).then(() => {
        this.contractAccount();
        this.form.amount = 0;
        this.$message.success(this.$t("contract.f5"));
        this.$emit("position");
      });
    },
    // 平仓
    closePosition(side) {
      let data = {
        side: side == 1 ? 2 : 1,
        type: this.form.type,
        symbol: this.symbol,
        entrust_price: this.form.entrust_price || 0,
        amount: this.form.amount
      };
      Contract.closePosition(data).then(() => {
        this.form.amount = "";
        this.contractAccount();
        this.$message.success(this.$t("contract.f6"));
        this.$emit("position");
      });
    }
  }
};
</script>
<style scoped="scoped" lang="scss">
    .exchange_button{
        display: flex;
        font-size: 16px !important;
    }
    .btn,.kaicang{
        font-size: 0.9rem;
    }
    /deep/ .el-slider__button-wrapper{
        // background-color: ;
        z-index: 999;
    }
</style>
