<script setup lang="ts">
import { computed } from 'vue'

import type { ResearchTask } from '@/types'
import { formatTimeLabel, statusTone } from '@/utils/format'

const props = defineProps<{
  tasks: ResearchTask[]
  activeTaskId: string
  loading: boolean
}>()

defineEmits<{
  activate: [taskId: string]
}>()

const rows = computed(() => props.tasks.map((item) => ({
  ...item,
  updatedLabel: formatTimeLabel(item.updated_at),
})))
</script>

<template>
  <div class="task-table">
    <div class="task-table__head">
      <div>
        <h3 class="archive-card-title">研究任务列表</h3>
        <p class="archive-copy">集中查看已保存的场馆对象、研究重点、状态与最近更新时间。</p>
      </div>
      <span class="archive-chip">
        <span class="archive-chip__dot" />
        {{ tasks.length }} Tasks
      </span>
    </div>

    <div v-if="loading" class="archive-empty">
      <p>研究任务载入中…</p>
    </div>

    <div v-else-if="rows.length === 0" class="archive-empty">
      <p>暂无研究任务。</p>
    </div>

    <div v-else class="ledger-table">
      <div class="ledger-table__head">
        <span>场馆 / 城市</span>
        <span>研究重点</span>
        <span>观察周期</span>
        <span>状态</span>
        <span>最近更新</span>
        <span>操作</span>
      </div>

      <div
        v-for="row in rows"
        :key="row.task_id"
        class="ledger-row"
        :class="{ 'ledger-row--active': row.task_id === activeTaskId }"
      >
        <div class="ledger-row__venue">
          <strong>{{ row.venue_name || '未命名场馆' }}</strong>
          <span>{{ row.city || '未填写城市' }}</span>
        </div>
        <span>{{ row.research_focus_label }}</span>
        <span>{{ row.time_range_label }}</span>
        <span class="archive-chip" :data-tone="statusTone(row.status)">
          <span class="archive-chip__dot" />
          {{ row.status_label || row.status }}
        </span>
        <time>{{ row.updatedLabel }}</time>
        <button
          class="archive-button--quiet ledger-row__action"
          type="button"
          :disabled="row.task_id === activeTaskId"
          @click="$emit('activate', row.task_id)"
        >
          {{ row.task_id === activeTaskId ? '当前任务' : '切换任务' }}
        </button>
      </div>
    </div>
  </div>
</template>

<style scoped>
.task-table {
  display: grid;
  gap: 16px;
}

.task-table__head,
.ledger-table__head,
.ledger-row {
  display: grid;
  grid-template-columns: minmax(220px, 2fr) 1.2fr 1fr 0.9fr 0.9fr auto;
  gap: 14px;
  align-items: center;
}

.task-table__head {
  grid-template-columns: minmax(0, 1fr) auto;
}

.ledger-table {
  border: 1px solid rgba(24, 35, 31, 0.08);
  border-radius: 22px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.66);
}

.ledger-table__head {
  padding: 14px 18px;
  background: rgba(24, 35, 31, 0.04);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.ledger-row {
  padding: 16px 18px;
  border-top: 1px solid rgba(24, 35, 31, 0.06);
}

.ledger-row--active {
  background: rgba(22, 52, 45, 0.05);
}

.ledger-row__venue {
  display: grid;
  gap: 5px;
}

.ledger-row__venue strong {
  color: var(--primary);
}

.ledger-row__venue span,
.ledger-row > span,
.ledger-row time {
  color: var(--text-muted);
  line-height: 1.6;
}

.ledger-row time {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.ledger-row__action {
  min-height: 34px;
  padding-inline: 12px;
}

@media (max-width: 1180px) {
  .ledger-table__head {
    display: none;
  }

  .ledger-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}
</style>