const app = getApp();
let loadingCount = 0;

const showLoading = (title) => {
	if (loadingCount === 0) {
	  	wx.showLoading({ 
			title: title,
			mask: true
		});
	}
	loadingCount++;
};

const hideLoading = () => {
	if (loadingCount > 0) {
	  	loadingCount--;
	}
	if (loadingCount === 0) {
	  	wx.hideLoading();
	}
}

const ajax = (url, params, methos, loading = true, title = "加载中...", contentType = "application/json") => {
	let requestUrl = app.globalData.wxRequestUrl + url;
	if (loading) {
		showLoading(title);
	}

	return new Promise((resolve, reject) => {
		let header = {
			"content-type": contentType
		};

		let token = wx.getStorageSync("token");
		if (Boolean(token)) {
			header['X-Access-Token'] = token;
		}
		wx.request({
			url: requestUrl,
			data: params,
			method: methos,
			header: header,
			success: (res) => {
				if (loading) {
					hideLoading();
				}
				console.log("↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓ 开始 ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓");
				switch (res.data.code) {
					case 200:
						resolve(res.data);
						console.log("接口【 " + url + " 】请求成功！状态码为：200(正常)");
						break;
					case 400:
						reject(res.data);
						console.error("接口【 " + url + " 】请求错误！状态码为：400(报错)");
						break;
					case 401:
						wx.clearStorageSync();
						reject(res.data);
						console.error("接口【 " + url + " 】请求错误！状态码为：401(未登录)");
						break;
					case 500:
						reject(res.data);
						console.error("接口【 " + url + " 】请求错误！状态码为：500(服务器错误)");
						break;
					default:
						reject(res.data);
						console.error("接口【 " + url + " 】请求错误！状态码为：未知");
				}
				console.log("Header参数为 ↓↓↓");
				console.log(header);
				console.log("请求参数为 ↓↓↓");
				console.log(params);
				console.log("返回参数为 ↓↓↓")
				console.log(res.data);
				console.log("↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑ 结束 ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑");
			},
			fail: (error) => {
				if (loading) {
					hideLoading();
				}
				wx.showToast({
					title: "请求失败,请重试!",
					icon: "none"
				})
				reject(error);
			}
		})
	})
}

export default {
	ajax
}