/**
 * Created by PengLing on 2017/12/26.
 */
'use strict';

const expect = require('chai').expect;
const path = require('path');
const fs = require('fs');

const Attachment = require('../lib/attachment');
const opts = require('./config')();

describe('attachment', function () {
    this.timeout(10000);

    let attachment, key;
    let p = path.posix.join(__dirname, 'files', 'test-文档1.txt'); // let p = 'test-文档1.txt';

    before(async () => {
        attachment = new Attachment(opts);
        makeFile(p);
    });

    after(async () => {
        await deleteFile(p);
    });

    it('upload file to local server successfully', function (done) {
        (async function () {
            try {
                let rslt = await attachment.upload(p);
                key = rslt.key;
                expect(rslt).to.be.an('object').that.has.all.keys('key');
                expect(rslt.key).to.be.a('string');
                done();
            } catch (err) {
                done(err);
            }
        })()
    })

    it('upload file successfully', function (done) {
        (async function () {
            try {
                let rslt = await attachment.upload(p);
                key = rslt.key;
                expect(rslt).to.be.an('object').that.has.all.keys('key');
                expect(rslt.key).to.be.a('string');
                done();
            } catch (err) {
                done(err);
            }
        })();
    });

    it('download file successfully', function (done) {
        (async function () {
            try {
                let publicDownloadUrl = await attachment.download(key);
                expect(publicDownloadUrl).to.be.a('string');
                done();
            } catch (err) {
                done(err);
            }
        })();
    });

    it('remove file successfully', function (done) {
        (async function () {
            try {
                let statusCode = await attachment.remove(key);
                expect(statusCode).to.be.a('number');
                done();
            } catch (err) {
                done(err);
            }
        })();
    });

    function makeFile(p) {
        return new Promise((resolve, reject) => {
            fs.writeFile(p, "hello world!", function (err) {
                if (err) {
                    reject(err);
                }
                resolve("The file was saved!");
            });
        });
    }

    function deleteFile(p) {
        return new Promise((resolve, reject) => {
            fs.unlink(p, (err) => {
                if (err) {
                    reject(`p: ${p}, error: delete file ${err}`);
                } else {
                    resolve('success');
                }
            });
        });
    }
});