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

// 基础 URL
const BASE_URL = "http://192.168.108.77:8092"

/**
 * 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 `${BASE_URL}/file/view/${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: BASE_URL + `/file/uploads?businessType=${businessType}`,
            filePath: filePath,
            name: 'files',
            header: {
                'accesstoken': 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
                        const success = result['success'] as boolean | null
                        const code = result['code'] as number | null
                        const msg = result['msg'] as string | null
                        const data = result['data'] as any[] | null
                        
                        // 判断是否成功
                        if (success == true || code == 0) {
                            if (data != null && data.length > 0) {
                                // 获取第一个文件信息
                                const fileInfo = data[0] as UTSJSONObject
                                const fileId = fileInfo['fileId'] as string
                                const fileName = fileInfo['fileName'] as string
                                const filePath = fileInfo['filePath'] as string
                                const fileSize = fileInfo['fileSize'] as number
                                const fileExt = fileInfo['fileExt'] as string
                                const businessType = fileInfo['businessType'] as string
                                
                                // 构建完整的 URL
                                const url = getFileViewUrl(fileId)
                                
                                // 返回 UploadResponse
                                const uploadResult: UploadResponse = {
                                    url: url,
                                    fileId: fileId,
                                    fileName: fileName,
                                    filePath: filePath,
                                    fileSize: fileSize,
                                    fileExt: fileExt,
                                    businessType: businessType
                                }
                                
                                resolve(uploadResult)
                            } else {
                                reject(new Error('上传成功但未返回文件信息'))
                            }
                        } else {
                            reject(new Error(msg ?? '上传失败'))
                        }
                    } 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)
}