import { request } from '@/utils/request'

/** 分类 */
export interface Category {
  id: number
  name: string
  icon: string
  color: string
  type: 'expense' | 'income'
  sort_order: number
  is_custom: number
}

/** 获取分类列表 */
export function getCategories() {
  return request<Category[]>({ url: '/categories' })
}

/** 创建分类 */
export function createCategory(data: {
  name: string
  icon: string
  color: string
  type: 'expense' | 'income'
}) {
  return request<{ id: number }>({ url: '/categories', method: 'POST', data })
}

/** 更新分类 */
export function updateCategory(id: number, data: { name: string; color: string }) {
  return request({ url: `/categories/${id}`, method: 'PUT', data })
}

/** 删除分类 */
export function deleteCategory(id: number) {
  return request({ url: `/categories/${id}`, method: 'DELETE' })
}

/** 获取分类关联的交易数量 */
export function getCategoryTransactionCount(id: number) {
  return request<{ count: number }>({ url: `/categories/${id}/transaction-count` })
}

/** 迁移分类关联的交易并删除分类 */
export function migrateCategory(fromId: number, targetId: number) {
  return request({ url: `/categories/${fromId}/migrate`, method: 'POST', data: { targetId } })
}

/** 更新分类排序 */
export function sortCategories(ids: number[]) {
  return request({ url: '/categories/sort', method: 'PUT', data: { ids } })
}