// TanStack Query hooks for API calls
// 使用 createQuery, createMutation, createInfiniteQuery 工厂函数创建 API hooks

/*
============================================================================
Query 查询示例
============================================================================

import { createQuery } from '@/service'

// 定义类型
interface User {
    id: string
    name: string
    email: string
}

interface UserListParams {
    status?: 'active' | 'inactive'
    search?: string
}

// 创建查询 hook
export const useUser = createQuery<User>('/api/user')
export const useUserList = createQuery<User[], UserListParams>('/api/users')

// 使用示例
function UserProfile() {
    const { data: user, isLoading, error } = useUser()

    if (isLoading) return <div>Loading...</div>
    if (error) return <div>Error: {error.message}</div>

    return <div>{user?.name}</div>
}

// 带参数的查询
function UserList() {
    const { data: users } = useUserList({
        params: { status: 'active' },
        enabled: true // 可选：条件查询
    })

    return <ul>{users?.map(u => <li key={u.id}>{u.name}</li>)}</ul>
}

============================================================================
Mutation 变更示例
============================================================================

import { createMutation } from '@/service'

interface CreateUserDTO {
    name: string
    email: string
}

// 创建变更 hook
export const useCreateUser = createMutation<User, CreateUserDTO>('/api/user', 'POST')
export const useUpdateUser = createMutation<User, Partial<User>>('/api/user', 'PUT')
export const useDeleteUser = createMutation<void, { id: string }>('/api/user', 'DELETE')

// 使用示例
function CreateUserForm() {
    const { mutate, mutateAsync, isPending, error } = useCreateUser()

    const handleSubmit = async (data: CreateUserDTO) => {
        // 方式1: 使用 mutate（不返回 Promise）
        mutate(data, {
            onSuccess: (newUser) => {
                console.log('User created:', newUser)
            },
            onError: (error) => {
                console.error('Failed:', error.message)
            }
        })

        // 方式2: 使用 mutateAsync（返回 Promise）
        try {
            const newUser = await mutateAsync(data)
            console.log('User created:', newUser)
        } catch (err) {
            console.error('Failed:', err)
        }
    }

    return (
        <form onSubmit={...}>
            {isPending && <span>Creating...</span>}
            {error && <span>Error: {error.message}</span>}
        </form>
    )
}

============================================================================
Infinite Query 无限加载示例
============================================================================

import { createInfiniteQuery } from '@/service'

interface UserListResponse {
    list: User[]
    total: number
}

// 创建无限查询 hook
export const useInfiniteUserList = createInfiniteQuery<UserListResponse>('/api/users')

// 使用示例
function InfiniteUserList() {
    const {
        data,
        fetchNextPage,
        hasNextPage,
        isFetchingNextPage
    } = useInfiniteUserList({
        params: { status: 'active' },
        pageSize: 20
    })

    // data.pages 是所有页面数据的数组
    const allUsers = data?.pages.flatMap(page => page.list) ?? []

    return (
        <>
            <ul>{allUsers.map(u => <li key={u.id}>{u.name}</li>)}</ul>
            {hasNextPage && (
                <button
                    onClick={() => fetchNextPage()}
                    disabled={isFetchingNextPage}
                >
                    {isFetchingNextPage ? 'Loading...' : 'Load More'}
                </button>
            )}
        </>
    )
}
*/