<template>
  <div class="entry-page">

    <!-- ─── 入口跟踪：8 个设备工位 + 下方单个上卷鞍座 ─── -->
    <div class="card">
      <div class="card-header">
        入口跟踪
        <span class="ch-badge">{{ saddle ? '上卷鞍座：预备生产' : '上卷鞍座：空闲' }}</span>
        <span style="margin-left:auto;display:flex;gap:8px;align-items:center;">
          <button v-if="saddle" class="btn btn-primary" @click="commit(saddle)">投入生产</button>
          <button class="btn btn-outline" @click="refreshAll">刷新</button>
        </span>
      </div>

      <div class="entry-grid">
        <!-- 8 个设备工位 -->
        <div v-for="(row, ri) in equipRows" :key="ri" class="entry-row">
          <div
            v-for="pos in row"
            :key="pos"
            :class="['pos-cell', { filled: !!occupantOf(pos) }]"
          >
            <div class="pos-title">{{ pos }}</div>
            <table v-if="occupantOf(pos)" class="pos-table">
              <tbody>
                <tr><td class="k">冷卷号</td><td class="v">{{ occ(pos,'cold_coil_no') }}</td></tr>
                <tr><td class="k">热卷号</td><td class="v">{{ occ(pos,'hot_coil_no') }}</td></tr>
                <tr><td class="k">钢种</td><td class="v">{{ occ(pos,'steel_grade') }}</td></tr>
                <tr><td class="k">来料厚[mm]</td><td class="v">{{ occNum(pos,'incoming_thickness',2) }}</td></tr>
                <tr><td class="k">成品厚[mm]</td><td class="v">{{ occNum(pos,'product_thickness',2) }}</td></tr>
                <tr><td class="k">成品宽[mm]</td><td class="v">{{ occNum(pos,'product_width',0) }}</td></tr>
                <tr><td class="k">来料重[t]</td><td class="v">{{ occNum(pos,'incoming_weight',3) }}</td></tr>
                <tr><td class="k">轧制模式</td><td class="v">{{ occ(pos,'rolling_mode') }}</td></tr>
              </tbody>
            </table>
            <div v-else class="pos-empty">空闲</div>
            <div v-if="occupantOf(pos)" class="pos-act"><span class="action-link" @click="openMove(occupantOf(pos))">移动</span></div>
          </div>
        </div>

        <!-- 下方：单个上卷鞍座（预备生产位；投入生产后离开鞍座进入物料跟踪） -->
        <div :class="['pos-cell', 'saddle-cell', { filled: !!saddle }]">
          <div class="pos-title saddle-title">上卷鞍座<span class="st-tag">预备生产位</span></div>
          <div v-if="saddle" class="saddle-body">
            <div class="sb-info">
              <span><i>冷卷号</i>{{ saddle.cold_coil_no || saddle.plan_no }}</span>
              <span><i>热卷号</i>{{ saddle.hot_coil_no || '—' }}</span>
              <span><i>钢种</i>{{ saddle.steel_grade || '—' }}</span>
              <span><i>规格</i>{{ fmt(saddle.product_thickness, 2) }}×{{ fmt(saddle.product_width, 0) }}</span>
              <span><i>来料重[t]</i>{{ fmt(saddle.incoming_weight, 3) }}</span>
              <span><i>轧制模式</i>{{ saddle.rolling_mode || '—' }}</span>
            </div>
            <div class="sb-stage">
              <span class="badge badge-yellow">预备生产</span>
              <span class="sb-hint">点击右上「投入生产」→ 进入生产中并转入物料跟踪</span>
            </div>
          </div>
          <div v-else class="pos-empty">空闲 — 把在线计划移动到「上卷鞍座」预备生产</div>
        </div>
      </div>
    </div>

    <!-- ─── 入口队列表 ─── -->
    <div class="card">
      <div class="card-header">
        入口队列
        <span class="ch-badge">{{ queuePlans.length }} 条</span>
      </div>
      <div class="table-scroll">
        <table class="data-table compact">
          <thead>
            <tr>
              <th>序号</th><th>冷卷号</th><th>热卷号</th><th>钢种</th>
              <th>规格(厚×宽)</th><th>来料重量</th><th>轧制模式</th><th>状态</th><th>当前位置</th><th>操作</th>
            </tr>
          </thead>
          <tbody>
            <tr v-for="(p, i) in queuePlans" :key="p.id">
              <td class="td-num">{{ i + 1 }}</td>
              <td class="td-num">{{ p.cold_coil_no || p.plan_no }}</td>
              <td class="td-num">{{ p.hot_coil_no || '—' }}</td>
              <td>{{ p.steel_grade || '—' }}</td>
              <td class="td-num">{{ fmt(p.product_thickness, 2) }} × {{ fmt(p.product_width, 0) }}</td>
              <td class="td-num">{{ fmt(p.incoming_weight, 2) }}</td>
              <td>{{ p.rolling_mode || '—' }}</td>
              <td><span :class="['badge', badgeOf(p.status)]">{{ statusLabel(p.status) }}</span></td>
              <td class="td-muted">{{ p.position || '—' }}</td>
              <td><span class="action-link" @click="openMove(p)">移动</span></td>
            </tr>
            <tr v-if="!queuePlans.length">
              <td colspan="10" class="td-muted" style="text-align:center;padding:14px;">暂无在线/准备好的计划</td>
            </tr>
          </tbody>
        </table>
      </div>
    </div>

    <!-- ─── 移动-位置选择弹窗 ─── -->
    <div v-if="moveDialog.visible" class="modal-mask" @click.self="moveDialog.visible=false">
      <div class="modal-box" style="width:520px;">
        <div class="modal-header">
          移动计划 — {{ moveDialog.plan && (moveDialog.plan.cold_coil_no || moveDialog.plan.plan_no) }}
          <span class="modal-close" @click="moveDialog.visible=false">✕</span>
        </div>
        <div class="modal-body">
          <div class="kv-label" style="margin-bottom:8px;">选择目标位置（只有「上卷鞍座」会进入生产环节）</div>
          <div class="pos-pick">
            <span
              v-for="pos in positions"
              :key="pos"
              :class="['pick-item', { active: moveDialog.target === pos, saddle: pos === SADDLE }]"
              @click="moveDialog.target = pos"
            >{{ pos }}</span>
          </div>
        </div>
        <div class="modal-footer">
          <button class="btn btn-outline" @click="moveDialog.visible=false">取消</button>
          <button class="btn btn-primary" :disabled="!moveDialog.target || moving" @click="confirmMove">{{ moving ? '移动中...' : '确定' }}</button>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import { getPlans, getSaddle, movePlan, commitProducing } from '@/api'

const STATUS_LABEL = { ready: '准备好', online: '在线', producing: '生产中', produced: '生产完成' }
const STATUS_BADGE = { ready: 'badge-gray', online: 'badge-green', producing: 'badge-yellow', produced: 'badge-blue' }
const SADDLE = '上卷鞍座'
const EQUIP_ROWS = [
  ['1#上卷小车', '1#称重位', '1#地辊', '1#倒卷小车'],
  ['2#上卷小车', '2#称重位', '2#地辊', '2#倒卷小车'],
]
const POSITIONS = [...EQUIP_ROWS[0], ...EQUIP_ROWS[1], SADDLE]
const TARGET = 2000

export default {
  name: 'EntryTracking',
  data() {
    return {
      plans: [], saddle: null, TARGET, SADDLE,
      positions: POSITIONS, equipRows: EQUIP_ROWS,
      timer: null, fastTimer: null, moving: false,
      moveDialog: { visible: false, plan: null, target: '' },
    }
  },
  computed: {
    queuePlans() {
      return this.plans
        .filter(p => (p.status === 'online' || p.status === 'ready') && p.on_saddle !== 1)
        .sort((a, b) => (a.status === 'online' ? 0 : 1) - (b.status === 'online' ? 0 : 1))
    },
  },
  created() {
    this.refreshAll()
    this.fastTimer = setInterval(this.fetchSaddle, 2000)
    this.timer = setInterval(this.fetchPlans, 5000)
  },
  beforeDestroy() { clearInterval(this.timer); clearInterval(this.fastTimer) },
  methods: {
    refreshAll() { this.fetchPlans(); this.fetchSaddle() },
    async fetchPlans() {
      try {
        const res = await getPlans({ page: 1, page_size: 100 })
        this.plans = res.data.items || []
      } catch (e) { /* ignore */ }
    },
    async fetchSaddle() {
      try {
        const res = await getSaddle()
        this.saddle = res.data || null
      } catch (e) { /* ignore */ }
    },
    fmt(v, n = 2) { return v != null && v !== '' ? Number(v).toFixed(n) : '—' },
    statusLabel(s) { return STATUS_LABEL[s] || s || '—' },
    badgeOf(s) { return STATUS_BADGE[s] || 'badge-gray' },
    progPct(p) { return Math.max(0, Math.min(100, (p.run_length_m || 0) / TARGET * 100)) },
    progColor(p) { return this.progPct(p) >= 100 ? 'var(--accent-green)' : 'var(--sms-teal)' },
    occupantOf(pos) {
      return this.plans.find(p => p.position === pos && p.on_saddle !== 1) || null
    },
    occ(pos, key) { const p = this.occupantOf(pos); return p ? (p[key] || '—') : '' },
    occNum(pos, key, n) { const p = this.occupantOf(pos); return p && p[key] != null ? Number(p[key]).toFixed(n) : '' },
    openMove(plan) { this.moveDialog = { visible: true, plan, target: plan.position || '' } },
    async confirmMove() {
      const { plan, target } = this.moveDialog
      if (!target) return
      this.moving = true
      try {
        await movePlan(plan.id, target)
        this.$message.success(target === SADDLE ? '已移动到上卷鞍座' : `已移动到 ${target}`)
        this.moveDialog.visible = false
        this.refreshAll()
      } catch (e) {
        this.$message.error(e?.response?.data?.detail || '操作失败')
      } finally { this.moving = false }
    },
    async commit(p) {
      try {
        await commitProducing(p.id)
        this.$message.success('已投入生产，转入物料跟踪')
        this.refreshAll()
      } catch (e) {
        this.$message.error(e?.response?.data?.detail || '操作失败')
      }
    },
  },
}
</script>

<style lang="scss" scoped>
@import '@/assets/styles/variables';

.entry-page { display: flex; flex-direction: column; gap: 12px; }

// ── 入口设备网格 ──
.entry-grid { padding: 8px; display: flex; flex-direction: column; gap: 6px; overflow-x: auto; }
.entry-row { display: grid; grid-template-columns: repeat(4, minmax(140px, 1fr)); gap: 6px; }

.pos-cell {
  background: $bg-panel; border: 1px solid $border; border-radius: 4px; padding: 4px 8px 4px;
  height: 192px; overflow: hidden; display: flex; flex-direction: column;
  &.filled { border-color: $sms-teal; background: rgba($sms-teal, .04); }
}
.pos-title {
  text-align: center; font-size: 11px; font-weight: 700; color: $text-primary;
  padding: 1px 0 3px; border-bottom: 1px dashed $border; margin-bottom: 3px; letter-spacing: .3px;
}
.pos-table {
  width: 100%; border-collapse: collapse; font-size: 10.5px; line-height: 1.3;
  td { padding: 0 0 1px; vertical-align: baseline; white-space: nowrap; }
  td.k { color: $text-muted; text-align: left; font-size: 10px; padding-right: 6px; }
  td.v { color: $sms-teal; text-align: right; font-family: $font-mono; font-weight: 600; width: 100%; }
}
.pos-act { margin-top: auto; text-align: right; padding-top: 3px; border-top: 1px dashed $border; flex-shrink: 0; }
.pos-empty { flex: 1; display: flex; align-items: center; justify-content: center; color: $text-muted; font-size: 11px; }

// ── 下方单个上卷鞍座（全宽） ──
.saddle-cell {
  height: 132px;
  &.filled { border-color: $accent-yellow; background: rgba($accent-yellow, .05); }
}
.saddle-title { border-bottom-color: rgba($accent-yellow, .4); display: flex; align-items: center; justify-content: center; gap: 8px;
  .st-tag { font-size: 9px; color: $accent-yellow; border: 1px solid rgba($accent-yellow, .5); border-radius: 2px; padding: 0 5px; font-weight: 600; } }
.saddle-body { flex: 1; display: grid; grid-template-columns: 3fr 2fr; gap: 16px; align-items: center; }
.sb-info { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px 18px;
  span { font-size: 12px; color: $text-primary; font-family: $font-mono; font-weight: 600; display: flex; gap: 6px;
    i { color: $text-muted; font-style: normal; font-family: $font-main; font-weight: 400; min-width: 56px; } }
}
.sb-stage { display: flex; flex-direction: column; align-items: center; gap: 8px; justify-content: center;
  border-left: 1px solid $border; padding-left: 16px;
  .sb-hint { font-size: 11px; color: $text-muted; text-align: center; } }

.action-link { color: $accent-green; cursor: pointer; font-size: 12px; &:hover { text-decoration: underline; } }

// ── 移动弹窗 ──
.pos-pick { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.pick-item {
  padding: 9px 12px; font-size: 12px; text-align: center; border-radius: 6px; cursor: pointer;
  border: 1px solid $border; color: $text-secondary; background: $bg-card;
  &:hover { border-color: $sms-teal; color: $sms-teal; }
  &.active { color: #fff; background: $sms-teal; border-color: $sms-teal; }
  &.saddle { grid-column: 1 / -1; border-style: dashed; border-color: $accent-yellow; color: $accent-yellow;
    &.active { color: #fff; background: $accent-yellow; border-style: solid; } }
}
.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: flex; align-items: center; justify-content: center; z-index: 9999; }
.modal-box { background: $bg-card; border: 1px solid $border; border-radius: 6px; max-width: 95vw; max-height: 90vh; display: flex; flex-direction: column; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; background: $bg-panel; border-bottom: 1px solid $border; font-size: 13px; font-weight: 600; color: $sms-highlight; .modal-close { cursor: pointer; color: $text-muted; &:hover { color: $text-primary; } } }
.modal-body { padding: 16px; overflow-y: auto; }
.modal-footer { padding: 10px 16px; background: $bg-panel; border-top: 1px solid $border; display: flex; justify-content: flex-end; gap: 10px; }
</style>
