<template>
  <el-card class="step-card">
    <div
      slot="header"
      class="flex between">
      <div class="step-card-title">Step2 Choose options</div>
      <div>&gt;&gt;</div>
    </div>
    <div v-loading="loading">
      <div v-if="computedPrintPriceData.length">
        <div class="card-sub-title">Decoration</div>
        <el-form
          :model="form"
          :rules="rules"
          label-width="0"
          ref="form">
          <div
            v-for="item in computedPrintPriceData"
            :key="item.id">
            <div class="divider"></div>
            <el-form-item>
              <div class="flex">
                <el-switch
                  v-model="form[`${item.id}`].enable"
                  active-color="#13ce66"
                  inactive-color="#ff4949"></el-switch>
                <div
                  class="form-item-label"
                  style="margin-left: 12px">
                  {{ item.point }}
                </div>
              </div>
            </el-form-item>

            <el-form-item>
              <div class="custom-checkbox-wrap">
                <div
                  class="custom-checkbox"
                  :class="{
                    active: form[`${item.id}`].printService === decoration.id,
                    disable: !form[`${item.id}`].enable,
                  }"
                  v-for="decoration in item.decorationList"
                  @click="printServiceClick(decoration, item)"
                  :key="decoration.id">
                  {{ decoration.dec_code }}
                </div>
              </div>
              <el-radio-group
                style="display: none"
                v-model="form[`${item.id}`].printService"
                :disabled="!form[`${item.id}`].enable">
                <el-radio
                  v-for="(decoration, index) in item.decorationList"
                  :key="index"
                  :label="decoration.id"
                  >{{ decoration.dec_code }}
                </el-radio>
              </el-radio-group>
            </el-form-item>

            <div
              class="flex start"
              v-for="(decoration, index) in item.decorationList"
              v-show="decoration.id === form[`${item.id}`].printService"
              :key="index">
              <div
                class="flex-auto"
                v-show="decoration.max_color_count">
                <div class="form-item-label">Numbers of colours</div>
                <div
                  style="height: 35px"
                  class="flex">
                  <el-radio-group
                    :disabled="!form[`${item.id}`].enable"
                    v-model="form[`${item.id}`].colorForm[index].colorNumber">
                    <el-radio
                      v-for="n in decoration.max_color_count"
                      :key="n"
                      :label="n"></el-radio>
                  </el-radio-group>
                </div>
              </div>
              <div
                class="flex-auto"
                style="max-width: 50%">
                <div class="form-item-label">PMS Colours</div>
                <el-form-item
                  prop="pmsColor"
                  label-width="0">
                  <el-input
                    :disabled="!form[`${item.id}`].enable"
                    v-model="form[`${item.id}`].colorForm[index].pmsColorText"
                    size="small"
                    placeholder="PMS"></el-input>
                </el-form-item>
              </div>
            </div>
          </div>
        </el-form>
      </div>
      <div v-if="hasAddition">
        <div class="divider"></div>
        <br />
        <div class="addition-title">Centre Back</div>
        <div
          class="flex"
          v-for="(addition, keyName, index) in priceData.additionList"
          :key="index">
          <div class="addition-title flex">{{ keyName }}</div>
          <div class="flex-auto flex wrap">
            <div
              @click="selectAddition(item, keyName)"
              class="addition-item"
              :class="[
                { selected: additionForm[`${keyName}`].includes(item.id) },
              ]"
              v-for="item in addition"
              :key="item.id">
              <div class="background"></div>
              <div class="name">{{ item.name }}</div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </el-card>
</template>

<script>
import stepMixin from './stepMixin'

export default {
  name: 'Step2',
  mixins: [stepMixin],
  props: {
    // 步骤1中选中的周期. 不能直接拿form1来取form1.cycle, 否则步骤1变更时,  涉及到form1的computed会全部重新计算, 可能会导致其他异常
    cycle: {
      type: Number,
      default: function () {
        return 0
      },
    },
  },
  data() {
    return {
      form: {},
      additionForm: {},
      rules: {},
      // 标志符，用于控制监听是否启用
      loaded: false,
    }
  },
  computed: {
    // 商品 当前选中周期的 基础价格和打印价格数据
    computedPriceData() {
      return this.priceData.priceList.filter(
        item => item.cycle_id === this.cycle
      )
    },
    /**
     * 当前选中周期下, 商品对应的各型号打印价格.
     */
    computedPrintPriceData() {
      const model = this.computedPriceData.length
        ? this.computedPriceData[0]
        : {}
      // 属性‘1’里面是基础价格数据, 属性 ’2‘是打印价格数据
      if (model['2']) {
        return model['2'].slice()
      } else {
        return []
      }
    },
    // 计算是否存在附加项
    hasAddition() {
      if (!this.loaded) return false
      let result = false
      const target = this.priceData.additionList
      for (const key in target) {
        if (Array.isArray(target[key]) && target[key].length) {
          result = true
        }
      }
      return result
    },
  },
  watch: {
    computedPrintPriceData: {
      deep: true,
      handler: function () {
        if (!this.loaded) return

        const temp = {}
        for (const item of this.computedPrintPriceData) {
          let pId = 0
          // 从 product 页面来的用户选过的打印服务数据
          if (
            this.preData.printService &&
            this.preData.printService[`${item.id}`] &&
            this.preData.printService[`${item.id}`].id
          ) {
            pId = this.preData.printService[`${item.id}`].id
          }

          temp[`${item.id}`] = {
            // ...item直接把所有数据一起堆进去, 方便后续的价格计算, 不然计算需要各种遍历, 逻辑会非常难懂.
            ...item,
            enable: pId !== 0,
            // 打印服务. 如果选过的打印服务在这个周期的商品里面有, 则选上. 否则选当前打印服务项的第一个
            printService: item.decorationList.map(i => i.id).includes(pId)
              ? pId
              : item.decorationList[0].id,
            colorForm: item.decorationList.map(decoration => {
              return {
                id: decoration.id,
                // 默认是1, 后台数据允许留空成0, 但既然计算打印价格, 肯定会是1, 不然怎么打印、怎么计算价格
                colorNumber:
                  pId === decoration.id
                    ? Number(this.preData.printService[`${item.id}`].num)
                    : 1,
                pmsColorText: '',
              }
            }),
          }
        }
        this.form = Object.assign(temp, this.additionForm)
      },
    },
    additionForm: {
      deep: true,
      handler: function () {
        if (!this.loaded) return

        Object.assign(this.form, this.additionForm)
      },
    },
  },
  mounted() {
    for (const key in this.priceData.additionList) {
      this.$set(
        this.additionForm,
        `${key}`,
        this.preData[`${key}`] ? this.preData[`${key}`].slice() : []
      )
    }
    this.loaded = true
  },
  methods: {
    checkForm() {
      return new Promise((resolve, reject) => {
        this.$refs.form.validate(valid => {
          if (valid) {
            resolve(JSON.parse(JSON.stringify(this.form)))
          } else {
            reject(new Error('validate step2 form error'))
          }
        })
      })
    },
    selectAddition(item, key) {
      if (this.additionForm[`${key}`].includes(item.id)) {
        // 选中清除
        this.$set(
          this.additionForm,
          `${key}`,
          this.additionForm[`${key}`].filter(i => i !== item.id)
        )
      } else {
        this.$set(
          this.additionForm,
          `${key}`,
          this.additionForm[`${key}`].concat([item.id])
        )
      }
    },
    printServiceClick(decoration, item) {
      if (!this.form[`${item.id}`].enable) return
      this.form[`${item.id}`].printService = decoration.id
    },
  },
}
</script>

<style lang="scss" scoped>
@import './step.scss';
div {
  box-sizing: border-box;
}
.addition-title {
  font-size: 14px;
  font-family: Proxima Nova, sans-serif;
  color: #000;
  min-width: 104px;
}
.addition-item {
  border: 1px solid #dbdbdb;
  max-width: 108px;
  margin-bottom: 12px;
  margin-right: 12px;
  cursor: pointer;
  .name {
    word-break: break-all;
    height: 32px;
    line-height: 16px;
    padding: 0 4px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
  .background {
    border-bottom: 1px solid #dbdbdb;
    width: 108px;
    height: 108px;
  }
  &:hover,
  &.selected {
    border-color: #409eff;
  }
}
.custom-checkbox {
  &.disable {
    cursor: not-allowed;
  }
}
</style>