// api.js - 适配uView3+uni-app版本

// 基础配置
const BASE_URL = 'http://192.168.1.55:5001/api'
const TIMEOUT = 10000

// 初始化时设置token
const token = uni.getStorageSync('token')
const commonHeaders = {
	'Content-Type': 'application/json'
}
if (token) {
	commonHeaders['Authorization'] = `Bearer ${token}`
}

// 请求队列，用于管理loading
let requestQueue = 0
let loadingTimer = null

// 显示加载动画
const showLoading = () => {
	requestQueue++
	if (loadingTimer) {
		clearTimeout(loadingTimer)
		loadingTimer = null
	}

	loadingTimer = setTimeout(() => {
		if (requestQueue > 0) {
			uni.showLoading({
				title: '加载中...',
				mask: true
			})
		}
	}, 300)
}

// 隐藏加载动画
const hideLoading = () => {
	requestQueue--
	if (requestQueue <= 0) {
		requestQueue = 0
		if (loadingTimer) {
			clearTimeout(loadingTimer)
			loadingTimer = null
		}
		uni.hideLoading()
	}
}

// 核心请求函数
const request = (config) => {
	return new Promise((resolve, reject) => {
		// 请求配置处理
		const {
			url,
			method = 'GET',
			data = {},
			params = {},
			header = {},
			showLoading = true
		} = config

		// 处理请求参数
		let requestUrl = BASE_URL + url
		let queryString = ''

		if (Object.keys(params).length > 0) {
			queryString = Object.keys(params)
				.map(key => `${encodeURIComponent(key)}=${encodeURIComponent(params[key])}`)
				.join('&')
			requestUrl += (requestUrl.includes('?') ? '&' : '?') + queryString
		}

		// 合并请求头
		const requestHeader = {
			...commonHeaders,
			...header
		}

		// 显示loading
		if (showLoading) {
			uni.showLoading()
		}

		// 发送请求
		uni.request({
			url: requestUrl,
			method: method.toUpperCase(),
			data: data,
			header: requestHeader,
			timeout: TIMEOUT,
			success: (response) => {
				// 处理响应
				const res = response.data
				const statusCode = response.statusCode

				if (statusCode >= 200 && statusCode < 300) {
					resolve(res)
				} else {
					// 处理HTTP错误状态
					handleError({
						response,
						config
					})
					reject(response)
				}
			},
			fail: (error) => {
				console.log(error);
				// 处理网络错误
				handleError({
					error,
					config
				})
				reject(error)
			},
			complete: () => {
				// 隐藏loading
				if (showLoading) {
					uni.hideLoading()
				}
			}
		})
	})
}

// 错误处理函数
const handleError = (errorInfo) => {
	const {
		response,
		error,
		config
	} = errorInfo

	if (response) {
		const {
			statusCode,
			data
		} = response

		switch (statusCode) {
			case 401:
				// 未授权，清除token并根据当前页面跳转到相应的登录页
				uni.removeStorageSync('token')
				uni.removeStorageSync('agentInfo') // 清除代理信息
				delete commonHeaders['Authorization']

				// 获取当前页面栈
				const pages = getCurrentPages()
				const currentPage = pages[pages.length - 1]
				const currentRoute = currentPage ? currentPage.route : ''

				console.log(data);

				// 判断当前是否在代理相关页面
				if (currentRoute && currentRoute.includes('agent')) {
					uni.redirectTo({
						url: '/pages/agent/mylogin'
					})
					// uToast.error('')
					uni.showToast({
						title: '代理登录已过期，请重新登录',
						icon: "error"
					})
				} else {
					uni.showToast({
						title: data.message,
						icon: "error"
					})
					// uToast.error('登录已过期，请重新登录')
				}
				break

			case 403:
				// 检查是否是用户被拉黑
				if (data.code === 'USER_BLACKLISTED') {
					// 清除token并跳转到登录页
					uni.removeStorageSync('token')
					delete commonHeaders['Authorization']
					uni.redirectTo({
						url: '/pages/user/mylogin'
					})
					// uToast.error(data.message || '账户已被拉黑，请联系管理员')
					uni.showToast({
						title: data.message || '账户已被拉黑，请联系管理员',
						icon: "error"
					})
				} else if (data.code === 'PAYMENT_REQUIRED') {
					// 需要支付，跳转到支付页面
					// 获取当前页面避免重复跳转
					const currentPages = getCurrentPages()
					const currentPage = currentPages[currentPages.length - 1]
					if (!currentPage || currentPage.route !== 'pages/payment/index') {
						uni.redirectTo({
							url: '/pages/payment/index'
						})
						uni.showToast({
							title: data.message || '您的账户尚未激活，请完成支付后再使用',
							icon: "error"
						})
						// uToast.warning(data.message || '您的账户尚未激活，请完成支付后再使用')
					}
				} else {
					// uToast.error(data.message || '权限不足')
					uni.showToast({
						title: data.message || '权限不足',
						icon: "error"
					})
				}
				break

			case 404:
				// uToast.error(data.message || '请求的资源不存在')
				uni.showToast({
					title: data.message || '请求的资源不存在',
					icon: "error"
				})
				break

			case 422:
				// uToast.error(data.message || '请求参数错误')
				uni.showToast({
					title: data.message || '请求参数错误',
					icon: "error"
				})
				break

			case 429:
				// uToast.error('请求过于频繁，请稍后再试')
				uni.showToast({
					title: '请求过于频繁，请稍后再试',
					icon: "error"
				})
				break

			case 500:
				// uToast.error('服务器内部错误')
				uni.showToast({
					title: '服务器内部错误',
					icon: "error"
				})
				break

				// case 400:
				// 处理业务逻辑错误（如坏账等）
				// uToast.error(data.error?.message || data.message || '请求失败')
				// uni.showToast({
				// 	title: data.error?.message || data.message || '请求失败',
				// 	icon: "error"
				// })
				// break

			default:
				// uToast.error(data.error?.message || data.message || '请求失败')
				uni.showToast({
					title: data.error?.message || data.message || '请求失败',
					icon: "error"
				})
		}
	} else if (error) {
		// 网络错误
		// uToast.error('网络连接失败，请检查网络设置')
		uni.showToast({
			title: '网络连接失败，请检查网络设置',
			icon: "error"
		})
	} else {
		// 其他错误
		// uToast.error('请求配置错误')
		uni.showToast({
			title: '请求配置错误',
			icon: "error"
		})
	}
}

// 封装常用的请求方法
export const http = {
	get: (url, params = {}, config = {}) => request({
		url,
		params,
		method: 'GET',
		...config
	}),
	post: (url, data = {}, config = {}) => request({
		url,
		data,
		method: 'POST',
		...config
	}),
	put: (url, data = {}, config = {}) => request({
		url,
		data,
		method: 'PUT',
		...config
	}),
	delete: (url, config = {}) => request({
		url,
		method: 'DELETE',
		...config
	}),
	patch: (url, data = {}, config = {}) => request({
		url,
		data,
		method: 'PATCH',
		...config
	})
}

// 设置token
export const setToken = (newToken) => {
	if (newToken) {
		commonHeaders['Authorization'] = `Bearer ${newToken}`
		uni.setStorageSync('token', newToken)
	} else {
		delete commonHeaders['Authorization']
		uni.removeStorageSync('token')
	}
}

// 文件上传API
export const uploadAPI = {
	// 上传图片
	uploadImage: (filePath, formData = {}) => {
		return new Promise((resolve, reject) => {
			uni.uploadFile({
				url: BASE_URL + '/upload/image',
				filePath: filePath,
				name: 'image',
				formData: formData,
				header: {
					'Authorization': commonHeaders['Authorization']
				},
				success: (uploadFileRes) => {
					const data = JSON.parse(uploadFileRes.data)
					resolve(data)
				},
				fail: (error) => {
					reject(error)
				}
			})
		})
	},

	// 上传文件
	uploadFile: (filePath, formData = {}) => {
		return new Promise((resolve, reject) => {
			uni.uploadFile({
				url: BASE_URL + '/upload/file',
				filePath: filePath,
				name: 'file',
				formData: formData,
				header: {
					'Authorization': commonHeaders['Authorization']
				},
				success: (uploadFileRes) => {
					const data = JSON.parse(uploadFileRes.data)
					resolve(data)
				},
				fail: (error) => {
					reject(error)
				}
			})
		})
	}
}


export const distributionAPI = {
	getLowerUsers: (params) => http.get('/agents/distribution', {
		params
	}),
}

export default {
	http,
	setToken,
	uploadAPI,
	distributionAPI
}