<template>
  <view class="container">
    <view class="header">
      <text class="title">分类管理</text>
      <button class="add-btn" @click="showAddModal = true">+ 添加</button>
    </view>
    
    <view class="tabs">
      <view class="tab" :class="{ active: activeType === 1 }" @click="activeType = 1">
        支出
      </view>
      <view class="tab" :class="{ active: activeType === 2 }" @click="activeType = 2">
        收入
      </view>
    </view>
    
    <view class="category-list">
      <view v-for="category in filteredCategories" :key="category.id" class="category-item">
        <text class="category-icon">{{ category.icon }}</text>
        <text class="category-name">{{ category.name }}</text>
        <view v-if="!category.userId" class="tag">系统</view>
        <view v-else class="actions">
          <text class="action-btn" @click="editCategory(category)">编辑</text>
          <text class="action-btn delete" @click="deleteCategory(category.id)">删除</text>
        </view>
      </view>
    </view>
    
    <!-- 添加/编辑弹窗 -->
    <view v-if="showAddModal || editingCategory" class="modal" @click="closeModal">
      <view class="modal-content" @click.stop>
        <view class="modal-header">
          <text class="modal-title">{{ editingCategory ? '编辑分类' : '添加分类' }}</text>
          <text class="close-btn" @click="closeModal">×</text>
        </view>
        <view class="modal-body">
          <view class="form-item">
            <text class="label">分类名称</text>
            <input v-model="form.name" placeholder="请输入分类名称" class="input" />
          </view>
          <view class="form-item">
            <text class="label">图标</text>
            <input v-model="form.icon" placeholder="请输入图标（如：🍔）" class="input" />
          </view>
          <button class="submit-btn" @click="submitCategory">保存</button>
        </view>
      </view>
    </view>
  </view>
</template>

<script setup>
import { ref, computed, onMounted } from 'vue'
import { getCategories, createCategory, updateCategory, deleteCategory as deleteCategoryApi } from '../../api/category'

const activeType = ref(1)
const categories = ref([])
const showAddModal = ref(false)
const editingCategory = ref(null)

const form = ref({
  name: '',
  icon: '📦',
  type: 1
})

const filteredCategories = computed(() => {
  return categories.value.filter(cat => cat.type === activeType.value)
})

const loadCategories = async () => {
  try {
    const data = await getCategories()
    categories.value = data || []
  } catch (error) {
    console.error('加载分类失败', error)
  }
}

const editCategory = (category) => {
  editingCategory.value = category
  form.value = {
    name: category.name,
    icon: category.icon,
    type: category.type
  }
}

const deleteCategory = async (id) => {
  uni.showModal({
    title: '确认删除',
    content: '确定要删除这个分类吗？',
    success: async (res) => {
      if (res.confirm) {
        try {
          await deleteCategoryApi(id)
          uni.showToast({
            title: '删除成功',
            icon: 'success'
          })
          loadCategories()
        } catch (error) {
          uni.showToast({
            title: '删除失败',
            icon: 'none'
          })
        }
      }
    }
  })
}

const submitCategory = async () => {
  if (!form.value.name) {
    uni.showToast({
      title: '请输入分类名称',
      icon: 'none'
    })
    return
  }
  
  try {
    form.value.type = activeType.value
    if (editingCategory.value) {
      await updateCategory(editingCategory.value.id, form.value)
      uni.showToast({
        title: '更新成功',
        icon: 'success'
      })
    } else {
      await createCategory(form.value)
      uni.showToast({
        title: '添加成功',
        icon: 'success'
      })
    }
    closeModal()
    loadCategories()
  } catch (error) {
    uni.showToast({
      title: editingCategory.value ? '更新失败' : '添加失败',
      icon: 'none'
    })
  }
}

const closeModal = () => {
  showAddModal.value = false
  editingCategory.value = null
  form.value = {
    name: '',
    icon: '📦',
    type: 1
  }
}

onMounted(() => {
  loadCategories()
})
</script>

<style scoped>
.container {
  min-height: 100vh;
  background: #f5f5f5;
}

.header {
  background: #fff;
  padding: 30rpx;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1rpx solid #eee;
}

.title {
  font-size: 36rpx;
  font-weight: bold;
}

.add-btn {
  background: #667eea;
  color: #fff;
  padding: 10rpx 20rpx;
  border-radius: 8rpx;
  font-size: 26rpx;
  border: none;
}

.tabs {
  display: flex;
  background: #fff;
  margin-top: 20rpx;
  padding: 10rpx;
}

.tab {
  flex: 1;
  text-align: center;
  padding: 20rpx;
  border-radius: 8rpx;
  color: #666;
}

.tab.active {
  background: #667eea;
  color: #fff;
}

.category-list {
  padding: 20rpx;
}

.category-item {
  background: #fff;
  border-radius: 12rpx;
  padding: 30rpx;
  margin-bottom: 20rpx;
  display: flex;
  align-items: center;
}

.category-icon {
  font-size: 48rpx;
  margin-right: 20rpx;
}

.category-name {
  flex: 1;
  font-size: 30rpx;
  color: #333;
}

.tag {
  background: #f0f0f0;
  color: #999;
  padding: 4rpx 12rpx;
  border-radius: 4rpx;
  font-size: 22rpx;
  margin-right: 20rpx;
}

.actions {
  display: flex;
  gap: 20rpx;
}

.action-btn {
  color: #667eea;
  font-size: 26rpx;
}

.action-btn.delete {
  color: #fa3534;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: #fff;
  border-radius: 12rpx;
  width: 80%;
  max-width: 600rpx;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30rpx;
  border-bottom: 1rpx solid #eee;
}

.modal-title {
  font-size: 32rpx;
  font-weight: bold;
}

.close-btn {
  font-size: 48rpx;
  color: #999;
}

.modal-body {
  padding: 30rpx;
}

.form-item {
  margin-bottom: 30rpx;
}

.label {
  display: block;
  font-size: 28rpx;
  color: #333;
  margin-bottom: 20rpx;
}

.input {
  width: 100%;
  padding: 20rpx;
  background: #f8f8f8;
  border-radius: 8rpx;
  font-size: 28rpx;
}

.submit-btn {
  width: 100%;
  height: 88rpx;
  background: #667eea;
  color: #fff;
  border-radius: 12rpx;
  font-size: 32rpx;
  border: none;
}
</style>









