<template>
  <div class="app-container">
    <!-- Toolbar / 工具栏 -->
    <div class="toolbar">
      <el-button @click="reload" icon="el-icon-refresh" size="small" :loading="loading">
        Refresh
      </el-button>
      <el-button
        v-if="lastSuccess && lastSuccess.lastSendTime"
        type="primary"
        plain
        icon="el-icon-magic-stick"
        size="small"
        @click="applyLastSuccessValues"
      >
        Apply Last Success Values
      </el-button>
    </div>

    <!-- Cards / 卡片 -->
    <div v-loading="loading" class="card-grid-container">
      <el-row :gutter="20">
        <el-col
          v-for="plan in plans"
          :key="plan.id"
          :xs="24"
          :sm="12"
          :md="8"
          class="card-col"
        >
          <el-card class="parameter-card" shadow="hover">
            <div slot="header" class="card-header">
              <!-- Steel Grade only / 只展示钢种，不展示计划 -->
              <span class="card-title">Steel Grade: {{ plan.steelGrade || '-' }}</span>

              <div class="header-right">
                <span v-if="lastSuccess && lastSuccess.lastSendTime" class="last-send-time">
                  <i class="el-icon-time"></i>
                  Last Sent: {{ formatTime(lastSuccess.lastSendTime) }}
                </span>

                <el-button
                  type="primary"
                  size="mini"
                  icon="el-icon-s-promotion"
                  @click="handleSend(plan)"
                  :loading="plan.sending"
                >
                  Send
                </el-button>
              </div>
            </div>

            <div class="card-body">
              <!-- Plan-driven editable form / 按计划参数渲染可编辑表单（不使用模板） -->
              <el-form :model="plan.params" label-position="top" size="mini">
                <el-row :gutter="10">
                  <el-col
                    v-for="item in driveFields"
                    :key="item.key"
                    :span="12"
                  >
                    <el-form-item :label="item.label">
                      <el-input
                        v-model="plan.params[item.key]"
                        :placeholder="getPlaceholder(item.key)"
                      />
                    </el-form-item>
                  </el-col>
                </el-row>
              </el-form>
            </div>
          </el-card>
        </el-col>
      </el-row>

      <div v-if="plans.length === 0 && !loading" class="empty-data">
        <el-empty description="No Data"></el-empty>
      </div>
    </div>
  </div>
</template>

<script>
// Import APIs / 引入接口
import { listPlan } from '@/api/l2/plan'
import { listSetup } from '@/api/business/setup'
import { createSendJob, executeSendJob } from '@/api/l2/sendJob'
import { getLastSuccess } from '@/api/l2/sendTemplate'

// Drive fields definition (English UI, Chinese comments) / 传动字段定义（英文界面，中文注释）
// 说明：key 必须与 setupForm 字段一致（来自 plan/components/setupForm.vue）
const DRIVE_FIELDS = [
  { key: 'porTension', label: 'Pay-off Reel Tension' },
  { key: 'celTension', label: 'Entry Loop Tension' },
  { key: 'cleanTension', label: 'Cleaning Section Tension' },
  { key: 'furTension', label: 'Furnace Zone Tension' },
  { key: 'towerTension', label: 'Cooling Tower Tension' },
  { key: 'tmNoneTension', label: 'TM No Tension' },
  { key: 'tmEntryTension', label: 'TM Entry Tension' },
  { key: 'tmExitTension', label: 'TM Exit Tension' },
  { key: 'tlNoneTension', label: 'TL No Tension' },
  { key: 'tlExitTension', label: 'TL Exit Tension' },
  { key: 'coatTension', label: 'Post-treatment Tension' },
  { key: 'cxlTension', label: 'Exit Loop Tension' },
  { key: 'trTension', label: 'Take-up Reel Tension' },

  { key: 'tlElong', label: 'TL Elongation' },
  { key: 'tlLvlMesh1', label: 'TL Leveling Roll Mesh 1' },
  { key: 'tlLvlMesh2', label: 'TL Leveling Roll Mesh 2' },
  { key: 'tlAcbMesh', label: 'TL Anti-crossbow Mesh' },

  { key: 'tmBendforce', label: 'TM Bending Force' },
  { key: 'tmAcrMesh', label: 'TM Anti-crimping Roll Mesh' },
  { key: 'tmBrMesh', label: 'TM Anti-tremor Roll Mesh' },
  { key: 'tmRollforce', label: 'TM Roll Force' }
]

// OPC address mapping (must align with back-end OpcMessageIdsManager.pdiSetupIds) / OPC点位映射（需与后端一致）
// 中文注释：这里用“字段名->OPC地址”的方式直接组装发送items
const DRIVE_ADDRESS = {
  porTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionPorBR1',
  celTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionBR3',
  cleanTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionBR1BR2',
  furTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionFur1',
  towerTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionFur2',
  tmNoneTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionBR5BR6',
  tmEntryTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionBR5TM',
  tmExitTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionTMBR6',
  tlNoneTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionBR6BR7',
  tlExitTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionTLBR7',
  coatTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionBR7BR8',
  cxlTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionBR8BR9',
  trTension: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.tensionBR9TR',

  tlElong: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.TLElongation',
  tlLvlMesh1: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.LevelingMesh1',
  tlLvlMesh2: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.LevelingMesh2',
  tlAcbMesh: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.AntiCrossBowUnitMesh',

  tmBendforce: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.TMBendforce',
  tmAcrMesh: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.ACRMesh',
  tmBrMesh: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.BRMesh',
  tmRollforce: 'ns=2;s=ProcessCGL.PLCLine.L2Setup.TMRollforce'
}

export default {
  name: 'DriveSend',
  data() {
    return {
      loading: false,
      lastSuccess: null,
      plans: [],
      driveFields: DRIVE_FIELDS
    }
  },
  created() {
    this.reload()
  },
  methods: {
    async reload() {
      this.loading = true
      try {
        // last success for DRIVE / 获取传动上次成功
        const lastRes = await getLastSuccess('DRIVE')
        this.lastSuccess = lastRes && lastRes.code === 200 ? lastRes.data : null

        // plans / 获取计划
        const planRes = await listPlan({ status: 'NEW,READY,ONLINE,PRODUCING' })
        const planList = planRes.rows || []

        const tasks = planList.map(async (p) => {
          let setup = {}
          try {
            const setupRes = await listSetup({ coilid: p.coilid, planid: p.planid })
            setup = (setupRes.rows && setupRes.rows.length > 0) ? setupRes.rows[0] : {}
          } catch (e) {
            setup = {}
          }

          const params = {}
          this.driveFields.forEach(f => {
            const fromSetup = setup[f.key]
            const fromLast = this.lastSuccess?.values?.[f.key]
            if (fromSetup !== undefined && fromSetup !== null && String(fromSetup) !== '') {
              params[f.key] = String(fromSetup)
            } else if (fromLast !== undefined && fromLast !== null) {
              params[f.key] = String(fromLast)
            } else {
              params[f.key] = ''
            }
          })

          return {
            ...p,
            setup,
            params,
            sending: false
          }
        })

        this.plans = await Promise.all(tasks)
      } catch (e) {
        console.error(e)
        this.$message.error('Load failed')
      } finally {
        this.loading = false
      }
    },

    applyLastSuccessValues() {
      if (!this.lastSuccess || !this.lastSuccess.values) {
        this.$message.info('No last success data')
        return
      }
      this.plans.forEach(plan => {
        this.driveFields.forEach(f => {
          const v = this.lastSuccess.values[f.key]
          if (v !== undefined) {
            this.$set(plan.params, f.key, String(v))
          }
        })
      })
      this.$message.success('Last success values applied')
    },

    getPlaceholder(key) {
      const v = this.lastSuccess?.values?.[key]
      if (v !== undefined) return `Last: ${v}`
      return 'Please enter'
    },

    formatTime(t) {
      if (!t) return ''
      return new Date(t).toLocaleString()
    },

    handleSend(plan) {
      this.$confirm(
        `Confirm to send parameters for Steel Grade [${plan.steelGrade || '-'}]?`,
        'Warning',
        {
          confirmButtonText: 'Confirm',
          cancelButtonText: 'Cancel',
          type: 'warning'
        }
      ).then(() => this.doSend(plan)).catch(() => {})
    },

    async doSend(plan) {
      plan.sending = true
      try {
        const items = this.driveFields.map(f => ({
          paramCode: f.key,
          address: DRIVE_ADDRESS[f.key],
          valueRaw: String(plan.params[f.key] || ''),
          setTime: new Date()
        })).filter(it => !!it.address)

        const dto = {
          deviceName: 'CGL_LINE_1',
          groups: [
            {
              groupNo: 1,
              groupType: 'DRIVE',
              groupName: `Drive Params for ${plan.steelGrade || ''}`,
              items
            }
          ]
        }

        const createRes = await createSendJob(dto)
        const jobId = createRes.data
        if (!jobId) throw new Error('Create send job failed')

        await executeSendJob(jobId)
        this.$message.success('Send success')

        await this.reload()
      } catch (e) {
        console.error(e)
        this.$message.error(e.message || 'Send failed')
      } finally {
        plan.sending = false
      }
    }
  }
}
</script>

<style scoped>
.page-title { margin-bottom: 20px; }
.toolbar { margin-bottom: 20px; display:flex; flex-wrap:wrap; gap:8px; align-items:center; }
.card-grid-container { min-height: 300px; }
.card-col { margin-bottom: 20px; }
.parameter-card .card-header { display:flex; justify-content:space-between; align-items:center; }
.card-title { font-weight: 600; }
.header-right { display:flex; align-items:center; }
.last-send-time { font-size: 12px; color:#909399; margin-right:16px; }
.empty-data { margin-top: 20px; }
</style>
