import request from "./request";
let loading = false;

/**
 * 核心新增：校验图片比例是否符合 4:3 规范（带容错）
 * @param {Number} width 图片宽度
 * @param {Number} height 图片高度
 * @param {Number} tolerance 容错值，默认0.05，摇摆空间足够
 * @returns {Boolean} 是否符合比例
 */
const checkImageRatio = (width, height, tolerance = 0.05) => {
	const standardRatio = 4 / 3; // 标准4:3比例
	const actualRatio = width / height; // 实际图片宽高比
	// 支持 横版4:3 或 竖版3:4 两种情况
	console.log(actualRatio, standardRatio)
	//const isStandardHorizontal = Math.abs(actualRatio - standardRatio) <= tolerance;
	// const isStandardVertical = Math.abs(actualRatio - (3 / 4)) <= tolerance;
	// return isStandardHorizontal || isStandardVertical;
	const isStandardHorizontal = standardRatio - actualRatio <= 0.334 || actualRatio - standardRatio <= tolerance;
	return isStandardHorizontal;
};

// 触发上传
const handleUpload = async (userId, type, sourceType = ['album', 'camera'], uploadType = 'image') => {
	if (loading) return

	try {
		loading = true
		let file = null
		if (uploadType == 'image') {
			const res = await uni.chooseImage({
				count: 1,
				sizeType: ['original', 'compressed'],
				sourceType: sourceType
			})

			console.log('res======', res)

			// 检查用户是否真的选择了图片
			if (!res || !res.tempFiles || res.tempFiles.length === 0) {
				console.log('用户取消了图片选择')
				return null // 明确返回 null 表示用户取消
			}

			file = res.tempFiles[0]

			// ========== 【核心新增：图片比例校验 开始】 ==========
			// 获取图片宽高信息（uniapp多端兼容API，APP/小程序/H5都支持）
			const imageInfo = await uni.getImageInfo({
				src: file.path
			});
			const {
				width,
				height
			} = imageInfo;
			console.log('图片宽高:', width, height, '实际比例:', (width / height).toFixed(4));
			// 校验4:3比例，容错0.05
			const isRatioValid = checkImageRatio(width, height, 0.05);
			if (!isRatioValid) {
				uni.showToast({
					title: '图片比例需为4:3，允许轻微偏差',
					icon: 'none',
					duration: 2000
				});
				return null; // 比例不符，终止上传流程
			}
			// ========== 【核心新增：图片比例校验 结束】 ==========
		} else if (uploadType == 'video') {
			const res = await uni.chooseVideo({
				count: 1,
				sourceType: ['album', 'camera'],
				compressed: false
			})
			// #ifdef H5
			file = res.tempFile;
			// #endif
			// #ifdef APP-PLUS || MP-WEIXIN
			file = res;
			// #endif
		}



		const result = await uploadFile(file, userId, type, uploadType)
		return result;
	} catch (error) {
		console.error('上传出错:', error)

		// 如果是用户取消操作，不抛出错误，返回 null
		if (error.errMsg && error.errMsg.includes('cancel')) {
			console.log('用户取消了操作')
			return null
		}

		throw error
	} finally {
		loading = false
	}
}
// iOS专用：HEIC转JPG
const convertHEICtoJPG = async (heicPath) => {
	return new Promise((resolve, reject) => {
		plus.zip.compressImage({
			src: heicPath,
			dst: heicPath.replace(/\.heic$|\.heif$/i, '.jpg'),
			format: 'jpg',
			quality: 90
		}, resolve, reject)
	})
}
// 获取二进制数据（兼容iOS）
const getFileBinary = async (filePath) => {
	return new Promise((resolve) => {
		const reader = new plus.io.FileReader()
		reader.onloadend = (e) => {
			resolve(e.target.result)
		}
		reader.readAsArrayBuffer(filePath)
	})
}
const compressAndUpload = async (file, userId, type) => {
	try {
		console.log('file=====', file)
		// 压缩图片
		const compressedResult = await uni.compressImage({
			src: file.path,
			quality: 80, // 压缩质量，范围0-100
			format: 'jpg', // 指定输出为jpg格式
		});

		// 获取压缩后的临时文件路径
		const compressedPath = compressedResult.tempFilePath;
		console.log('compressedPath', compressedPath)
		file.path = compressedPath;
		console.log('file.path', file.path)
		// 上传图片
		const result = await uploadFile(file, userId, type)
		return result;
	} catch (error) {
		console.error('压缩或上传失败:', error);
		uni.showToast({
			title: '图片处理失败',
			icon: 'none'
		});
	}
}
// 上传文件到OSS
const uploadFile = async (file, userId, type, uploadType) => {
	console.log('file=======', file)
	console.log('userId=======', userId)
	// 检查文件大小
	if (uploadType == 'image') {
		if (file.size > 5 * 1024 * 1024) {
			uni.showToast({
				title: `文件大小不能超过5MB`,
				icon: 'none'
			})
			return Promise.reject(new Error('文件大小超出限制'))
		}
	} else if (uploadType == 'video') {
		if (file.size > 100 * 1024 * 1024) {
			uni.showToast({
				title: `文件大小不能超过100MB`,
				icon: 'none'
			})
			return Promise.reject(new Error('文件大小超出限制'))
		}
	}

	let date = new Date().getTime()
	console.log('file', file)
	// let imageType = file.path.split('.')
	let imageType;
	if (uploadType == 'image') {
		//imageType = file.path.split('.')
		imageType = file.path.split('.')
	} else if (uploadType == 'video') {
		// #ifdef H5
		imageType = file.name.split('.')
		// #endif
		// #ifdef APP-PLUS || MP-WEIXIN
		imageType = file.tempFilePath.split('.')
		// #endif
	}
	let artisan = type == 1 ? 'yh' : type == 2 ? 'syr' : type == 3 ? 'sj' : '';
	let name = `${userId}_${artisan}_${date}.${imageType[imageType.length - 1]}`
	console.log('file.path', file.path)
	console.log('imageType', imageType)
	console.log('name', name)
	try {
		// 1. 获取OSS上传凭证
		const ossConfig = await getOssConfig(type)
		// 2. 上传文件
		const uploadRes = await uploadToOss(file, ossConfig, name, uploadType)
		// 3. 添加到文件列表
		const fileUrl = `${ossConfig.host}/${ossConfig.dir}${name}`
		return fileUrl
	} catch (error) {
		console.error('上传失败:', error)
		throw error
	}
}

// 获取OSS配置
const getOssConfig = async (type) => {
	try {
		const res = await request.post('/user/getalioss', {
			type: type,
			kind: 1
		})
		return res
	} catch (error) {
		console.error('获取OSS配置失败:', error)
		throw error
	}
}

// 上传到OSS
const uploadToOss = (file, ossConfig, name, uploadType) => {
	console.log(ossConfig)
	return new Promise((resolve, reject) => {
		// #ifdef H5
		const formData = new FormData()
		formData.append('name', name);
		formData.append('policy', ossConfig.policy);
		formData.append('OSSAccessKeyId', ossConfig.ossAccessKeyId);
		formData.append('success_action_status', '200');
		formData.append('signature', ossConfig.signature);
		formData.append('key', ossConfig.dir + name);
		// file必须为最后一个表单域，除file以外的其他表单域无顺序要求。
		formData.append('file', file);
		fetch(ossConfig.host, {
			method: 'POST',
			body: formData
		}, ).then((res) => {
			resolve(`${ossConfig.host}/${ossConfig.dir}${name}`)
		}).catch(() => {
			reject(new Error(`上传失败: ${res.statusCode}`))
		})
		// #endif
		// #ifdef APP-PLUS || MP-WEIXIN
		let formData = {};
		formData.name = name;
		formData.policy = ossConfig.policy;
		formData.OSSAccessKeyId = ossConfig.ossAccessKeyId;
		formData.success_action_status = '200';
		formData.signature = ossConfig.signature;
		formData.key = ossConfig.dir + name;
		formData.file = file;

		let path;
		if (uploadType == 'image') {
			path = file.path
			// 获取文件扩展名并设置 Content-Type
			console.log('111111');
			const ext = file.path.split('.').pop().toLowerCase()
			console.log('33333333');
			const mimeTypes = {
				jpg: 'image/jpeg',
				jpeg: 'image/jpeg',
				png: 'image/png',
				gif: 'image/gif'
			}
			if (mimeTypes[ext]) {
				formData['Content-Type'] = mimeTypes[ext],
					formData['x-oss-meta-content-type'] = mimeTypes[ext]
			}
			console.log('formData', formData)
		} else if (uploadType == 'video') {
			// #ifdef H5
			path = file.name
			// #endif
			// #ifdef APP-PLUS || MP-WEIXIN
			path = file.tempFilePath
			// #endif
		}

		uni.uploadFile({
			url: ossConfig.host,
			filePath: path, // 手机端文件路径
			name: 'file',
			formData: {
				key: ossConfig.dir + name, // 文件名
				policy: ossConfig.policy, // 后台获取超时时间
				OSSAccessKeyId: ossConfig.ossAccessKeyId, // 后台获取临时ID
				success_action_status: 200, // 让服务端返回200,不然，默认会返回204
				signature: ossConfig.signature // 后台获取签名
			},
			success(res) {
				resolve(`${ossConfig.host}/${ossConfig.dir}${name}`)
			},
			complete(err) {
				console.log('err', err)
			}
		});
		// #endif
	})
}
export default {
	handleUpload
}