<template>
  <div class="pig-batch-list">
    <div v-for="batch in pigBatches" :key="batch.id" class="pig-batch-item">
      <div class="batch-header" @click="toggleExpand(batch)">
        <div class="batch-info">
          <span>批次编号: {{ batch.batch_number }}</span>
          <span>状态: {{ batch.status }}</span>
          <span>初始数量: {{ batch.initial_count }}</span>
        </div>
        <div class="batch-actions">
          <el-button size="small" type="primary" @click.stop="emitAddPen(batch)">增加猪栏</el-button>
          <el-button size="small" @click.stop="emitEditBatch(batch)">编辑</el-button>
          <el-button size="small" type="danger" @click.stop="emitDeleteBatch(batch)">删除</el-button>
        </div>
      </div>
      <div v-if="batch.isExpanded" class="batch-content">
        <div v-if="batch.pens && batch.pens.length > 0" class="pig-pen-list">
          <PigPenInfoCard
            v-for="pen in batch.pens"
            :key="pen.id"
            :pen="pen"
            @edit="emitEditPen"
            @delete="emitDeletePen"
          />
        </div>
        <div v-else class="no-pens-message">
          <p>该猪群下没有猪栏信息。</p>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import PigPenInfoCard from './PigPenInfoCard.vue';

export default {
  name: 'PigBatchList',
  components: {
    PigPenInfoCard
  },
  props: {
    pigBatches: {
      type: Array,
      required: true
    }
  },
  emits: ['edit-batch', 'delete-batch', 'add-pen', 'edit-pen', 'delete-pen'],
  methods: {
    toggleExpand(batch) {
      batch.isExpanded = !batch.isExpanded;
    },
    // 猪群操作
    emitAddPen(batch) {
      this.$emit('add-pen', batch);
    },
    emitEditBatch(batch) {
      this.$emit('edit-batch', batch);
    },
    emitDeleteBatch(batch) {
      this.$emit('delete-batch', batch);
    },
    // 猪栏操作
    emitEditPen(pen) {
      this.$emit('edit-pen', pen);
    },
    emitDeletePen(pen) {
      this.$emit('delete-pen', pen);
    }
  }
}
</script>

<style scoped>
.pig-batch-list {
  width: 100%;
}

.pig-batch-item {
  border: 1px solid #eee;
  border-radius: 4px;
  margin-bottom: 16px;
  overflow: hidden;
}

.batch-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  cursor: pointer;
  background-color: #f9f9f9;
  transition: background-color 0.3s;
}

.batch-header:hover {
  background-color: #f0f0f0;
}

.batch-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.batch-info span:first-child {
  font-weight: bold;
}

.batch-info span {
  margin-right: 20px;
  font-size: 14px;
  color: #606266;
}

.batch-actions {
  display: flex;
  gap: 10px;
}

.batch-content {
  padding: 16px;
  border-top: 1px solid #eee;
}

.pig-pen-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.no-pens-message {
  color: #909399;
  text-align: center;
  padding: 20px 0;
}
</style>
