import request from '@/utils/request'

/**
 * 上传文件通用接口
 * @param data File 对象 或 FormData 对象
 */
export function uploadFile(data: File | FormData) {
    let formData: FormData

    if (data instanceof FormData) {
        formData = data
    } else {
        formData = new FormData()
        // @ts-ignore
        formData.append('file', data)
    }

    return request({
        url: '/v1/common/upload',
        method: 'post',
        data: formData,
        headers: {
            'Content-Type': 'multipart/form-data'
        }
    })
}

/**
 * 删除文件通用接口
 * @param filename 文件名 (例如: a1b2c3d4.jpg)
 */
export function deleteFile(filename: string) {
    return request({
        url: `/v1/common/files/${filename}`,
        method: 'delete'
    })
}

// ============================================================================
// 以图搜图 API
// ============================================================================

/** 以图搜图返回的物料项 */
export interface ImageSearchItem {
    product_id: number
    product_name: string
    spec_model: string
    image_url: string
    similarity: number
}

/** 以图搜图响应结构 */
export interface ImageSearchResponse {
    code: number
    msg: string
    data: ImageSearchItem[]
}

/**
 * 以图搜图
 * @param file 图片文件 (File 对象或 Blob)
 */
export function imageSearch(file: File | Blob) {
    const formData = new FormData()
    formData.append('file', file)

    return request<ImageSearchResponse>({
        url: '/v1/common/image-search',
        method: 'post',
        data: formData,
        headers: {
            'Content-Type': 'multipart/form-data'
        }
    })
}