import { buildDir } from '@/common/file-utils'
import request from '@/common/request'
import { fetchToken as ossToken } from '@/api/sys/config/oss'
import { fetchToken as cosToken } from '@/api/sys/config/cos'
import { fetchDetail as uploadDetail } from '@/api/sys/config/upload'
import { fetchToken as qiuiuToken } from '@/api/sys/config/qiniu'

/**
 * 获取网站基本信息
 */
function fetchSite() {

	return new Promise((resolve, reject) => {

		uploadDetail().then(cfg => {
			console.log('upload', cfg)
			resolve(cfg)
		}).catch(err => {
			uni.showToast({
				title: `获取系统基础设置失败： ${err} `,
				icon: 'none',
				duration: 5000
			});
			reject()
		})

	})

}

/**
 * 文件上传入口
 * @param file
 * @param data
 * @returns {Promise<unknown>}
 */
async function uploadFile(file) {

	// 获取上传设置
	let cfg = await fetchSite()
	const provider = cfg.provider
	
	uni.showLoading({
		title: '上传中..'
	})
	
	return new Promise((resolve, reject) => {
		// 本地文件上传
		if (provider === 'local') {
			request.upload('/api/common/file/upload', file).then(res => {
				resolve(res.data.url)
				uni.hideLoading()
			}, err => {
				reject(err)
				uni.hideLoading()
			})
		}

		// OSS文件上传
		if (provider === 'oss') {
			ossUpload(file).then(res => {
				resolve(res)
				uni.hideLoading()
			}, err => {
				reject(err)
				uni.hideLoading()
			})
		}

		// 七牛云文件上传
		if (provider === 'qiniu') {
			qiniuUpload(file).then(res => {
				resolve(res)
				uni.hideLoading()
			}, err => {
				reject(err)
				uni.hideLoading()
			})
		}

		// 腾讯云文件上传
		if (provider === 'cos') {
			cosUpload(file).then(res => {
				resolve(res)
				uni.hideLoading()
			}, err => {
				reject(err)
				uni.hideLoading()
			})
		}
	}).catch(err=>{
		uni.hideLoading()
		
		uni.showToast({
			title: `处理上传出现错误： ${err} `,
			icon: 'none',
			duration: 5000
		});
		
	})
}

// OSS上传
function ossUpload(file) {
	return new Promise((resolve, reject) => {
		// 获得上传令牌
		ossToken().then(res => {
			const conf = res
			const dataObj = {
				'policy': res.policy,
				'OSSAccessKeyId': res.accessId,
				'success_action_status': 200,
				'signature': res.signature,
				'key': buildDir() + getFileExt(file)
			}

			console.log('调用upload', dataObj)

			// 调用
			request.upload(conf.host, file, dataObj).then(() => {
				// 保存截图
				const url = conf.url + dataObj.key
				console.log('上传后的地址', url)
				resolve(url)
			})



		}).catch(err => {
			uni.showToast({
				title: `获取OSS令牌失败： ${err} `,
				icon: 'none',
				duration: 5000
			});
			reject(err)
		})
	})
}

/**
 * 腾讯云文件上传
 * @param file
 * @returns {Promise<unknown>}
 */
function cosUpload(file) {
	return new Promise((resolve, reject) => {
		// 获得上传令牌
		cosToken().then(res => {
			const conf = res
	
			// 上传后文件目录
			const key = buildDir() + getFileExt(file)
	
			// #ifdef MP-WEIXIN
			var COS = require('cos-wx-sdk-v5');
			const cos = new COS({
				SecretId: res.tmpSecretId,
				SecretKey: res.tmpSecretKey,
				XCosSecurityToken: res.sessionToken
			})
			
			cos.postObject({
			    Bucket: conf.bucket, 
			    Region: conf.region,  
			    Key: key,
				FilePath: file.path
			}, function(err, data) {
			    console.log(err || data);
				const url = conf.url + key
				resolve(url)
			});
			// #endif
			
			// #ifndef MP-WEIXIN
			var COS = require('cos-js-sdk-v5');
			const cos = new COS({
				SecretId: res.tmpSecretId,
				SecretKey: res.tmpSecretKey,
				XCosSecurityToken: res.sessionToken
			})
			
			cos.putObject({
			    Bucket: conf.bucket, 
			    Region: conf.region,  
			    Key: key,
				Body: file
			}, function(err, data) {
			    console.log(err || data);
				const url = conf.url + key
				resolve(url)
			});
			// #endif
			
		}).catch(err => {
			uni.showToast({
				title: `获取COS上传令牌失败： ${err} `,
				icon: 'none',
				duration: 5000
			});
			reject(err)
		})
	})
}

/**
 * 七牛云文件上传
 * @param file
 * @returns {Promise<unknown>}
 */
function qiniuUpload(file) {
	return new Promise((resolve, reject) => {
		uploadDetail().then(res => {
			const conf = JSON.parse(res.data)
			// 获得上传Token
			qiuiuToken().then(res => {
				const dataObj = {
					'token': res.token,
					'key': buildDir() + getFileExt(file)
				}

				request.upload(conf.endpoint, file, dataObj).then(() => {
					// 保存数据
					const url = conf.url + dataObj.key
					resolve(url)
				})
			}).catch(err => {
				uni.showToast({
					title: `获取七牛令牌失败： ${err} `,
					icon: 'none',
					duration: 5000
				});
				reject(err)
			})
		})
	})
}

/**
 * 获取文件后缀
 * @param file
 * @returns {string}
 */
function getFileExt(file) {

	// 取文件名
	let name = file.name || file.path || file.tempFilePath

	// 获取文件后缀
	const ext = name.split('.').pop()
	if (ext != null && ext !== '') {
		return '.' + ext.toLowerCase()
	}
	return ''
}

module.exports = {
	uploadFile: uploadFile
};