<template>
<el-dialog title="修改数量" :visible.sync="show" width="30%" :before-close="close" append-to-body>
  奖品数量  <el-radio v-model="calculate" :label="true">增加</el-radio>
  <el-radio v-model="calculate" :label="false">减少</el-radio>
  <div class="text-center pt10">
      <el-input-number controls-position="right" :min="0" v-model="count" class="w200 block-center" @blur="checkCalc"></el-input-number>
      <span class="fz14 pl20">结果：</span>
      <span>{{calculate?parseInt(totalCount)+parseInt(count):parseInt(totalCount)-parseInt(count)}}</span>
  </div>
  <div class="text-center pt10">

  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="close">取 消</el-button>
    <el-button type="primary" @click="submit">确 定</el-button>
  </span>
</el-dialog>
</template>

<script>
import {updatePrizeStock} from '@/service/api/gameApi.js';
export default {
  props:{
    totalCount:{
      type:Number,
      default:0
    },
    show:{
      type:Boolean,
      default:false
    },
    prizeReferType:{
      type:Number,
      default:0
    },
    prizeId:{
      type:String,
      default:''
    },
    prizeReferId:{
      type:String,
      default:''
    },
    useStrategy:{
      type:Number,
      default:1
    },
  },
  data(){
    return{
      count:0,
      calculate:true
    }
  },
  methods:{
    checkCalc(){
      if (!this.calculate) {
        if (this.count>this.totalCount) {
          this.count = this.totalCount;
          this.$tips({type:'warning',message:'输入数量不能大于总数'})
        }
      }
    },
    close(){
      this.$emit('update:show',false)
      // this.count = 0;
    },
    submit(){
      if (!this.calculate) {
        if (this.count>this.totalCount) {
          this.count = this.totalCount;
          this.$tips({type:'warning',message:'输入数量不能大于总数'})
          return;
        }
      }

    let params = {
      optType:this.calculate?1:2,	//是	int	1: 增加; 2: 减少
      addCount:this.count,	//是	int	增加或者减少数量
      prizeReferType:this.prizeReferType, //	是	int	奖品类型: 积分: 1; 卡券: 2; 礼品: 3
      useStrategy:this.useStrategy,//是	int	首奖特殊策略: 1; 奖项设置: 0
      prizeReferId:this.prizeReferType===1?null:this.prizeReferId,	//是	string	卡券, 礼品都存在, 积分传null
      prizeId:this.prizeId,
    }
    updatePrizeStock(params).then(res => {
      this.$emit('countRefresh',{calc:this.calculate,num:this.count});
    });

    this.close();
    }
  }
}
</script>
