/**
 * 文件上传封装
 */
import { getAccessToken, clearAll } from './storage'
import type { ApiResponse } from '../types/user'
import type { UploadResponse, UploadFileInfo } from '../types/workbench'
import { getBaseUrl } from './request'

/**
 * 处理 401 未授权错误
 */
const handle401Error = (): void => {
    // 清除所有本地存储
    clearAll()

    // 提示用户
    uni.showToast({
        title: '登录已过期，请重新登录',
        icon: 'none',
        duration: 2000
    })

    // 延迟跳转到登录页
    setTimeout(() => {
        uni.reLaunch({
            url: '/pages/login/index'
        })
    }, 1500)
}

/**
 * 获取文件预览地址
 */
export const getFileViewUrl = (fileId: string): string => {
    return getBaseUrl()+`${fileId}`
}

/**
 * 上传文件（多文件上传接口）
 * @param filePath 文件路径
 * @param businessType 业务类型模块
 */
export const uploadFile = (filePath: string, businessType: string): Promise<UploadResponse> => {
	return new Promise((resolve, reject) => {
        const token = getAccessToken()
        uni.uploadFile({
			url: getBaseUrl() + `/common/upload`,
            filePath: filePath,
            name: 'file',
            header: {
                'Authorization': 'Bearer ' + token ?? ''
            },
            success: (res) => {
                // 提取属性（any 类型不能直接访问属性）
                const statusCode = res.statusCode as number
                const resData = res.data as string

                console.log('上传响应:', res)

                // 处理 401 未授权
                if (statusCode == 401) {
                    try {
                        const errorResult = JSON.parse(resData) as UTSJSONObject
                        const message = errorResult['message'] as string | null
                        const error = errorResult['error'] as string | null

                        // 显示错误信息
                        const errorMsg = message ?? error ?? '登录已过期'

                        // 处理 401 错误
                        handle401Error()

                        reject(new Error(errorMsg))
                    } catch (e: any) {
                        handle401Error()
                        reject(new Error('登录已过期'))
                    }
                    return
                }

                // 处理成功响应
                if (statusCode == 200) {
                    try {
                        const result = JSON.parse(resData) as UTSJSONObject
                        // 获取第一个文件信息
                        const fileInfo = result as UTSJSONObject
						let code = fileInfo["code"] as number | null;
						let msg = fileInfo["msg"] as string | null;
						if (code == 200) {
							const fileName = fileInfo['fileName'] as string
							// 构建完整的 URL
							const url = getFileViewUrl(fileName)
							// 返回 UploadResponse
							const uploadResult: UploadResponse = {
							    url: url,
							    fileId: fileName,
							    fileName: fileName,
							    filePath: filePath,
							    fileSize: 0,
							    fileExt: '',
							    businessType: businessType
							}
							resolve(uploadResult)
						}else{
							const errorMsg = msg != null ? msg : "请求失败";
							console.error('响应数据解析失败:', errorMsg)
							reject(new Error(errorMsg))
						}
                    } catch (e: any) {
                        console.error('响应数据解析失败:', e)
                        reject(new Error('响应数据解析失败'))
                    }
                } else {
                    // 其他错误状态码
                    try {
                        const errorResult = JSON.parse(resData) as UTSJSONObject
                        const message = errorResult['message'] as string | null
                        const error = errorResult['error'] as string | null
                        const errorMsg = message ?? error ?? `上传失败：${statusCode}`
                        reject(new Error(errorMsg))
                    } catch (e: any) {
                        reject(new Error(`上传失败：${statusCode}`))
                    }
                }
            },
            fail: (err: any) => {
                reject(new Error('上传失败，请检查网络连接'))
            }
        })
    })
}

/**
 * 上传图片
 * @param filePath 文件路径
 * @param businessType 业务类型模块，默认为 'image'
 */
export const uploadImage = (filePath: string, businessType: string | null): Promise<UploadResponse> => {
    const type = businessType ?? 'image'
    return uploadFile(filePath, type)
}

/**
 * 上传视频
 * @param filePath 文件路径
 * @param businessType 业务类型模块，默认为 'video'
 */
export const uploadVideo = (filePath: string, businessType: string | null): Promise<UploadResponse> => {
    const type = businessType ?? 'video'
    return uploadFile(filePath, type)
}