const OSS = require("ali-oss");
const normalendpoint = "oss-cn-hongkong.aliyuncs.com";
const fastendpoint = "oss-accelerate.aliyuncs.com";

// 引入环境变量
require("dotenv").config({path: "../.env"});

let client = new OSS({
	region: process.env.OSS_REGION,
	accessKeyId: process.env.OSS_ACCESS_KEY,
	accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET,
	bucket: process.env.OSS_BUCKET,
});

async function get(objname) {
	try {
		const result = await client.get(objname);
		return result.content.toString();
	} catch (e) {
		console.log(e);
	}
}

async function put(objname, content, headers) {
	try {
		const result = await client.put(objname, new Buffer.from(content), {headers});
		return result;
	} catch (e) {
		console.log(e);
	}
}

async function head(objname) {
	try {
		const result = await client.head(objname);
		return result.res.headers;
	} catch (e) {
		console.log(e);
	}
}

async function signurl(objname, isFast) {
	try {
		let result = await client.signatureUrl(objname);
		if (isFast) {
			result = result.replace("http://","//").replace(normalendpoint, fastendpoint);
		}
		return result;
	} catch (e) {
		console.log(e);
	}
}

module.exports = {get, put, head, signurl};

if (!module.parent) {
	get("SUB/database.yaml");
	put("SUB/test.txt", "中文");
	head("SUB/database.yaml");
	signurl("SUB/database.yaml",true);
}