const execAsync = require('async-child-process').execAsync;
const semverSort = require('semver-sort');
const publishRelease = require('publish-release');
const promisify = require('es6-promisify');
const typedoc = require('typedoc');

const cwd = __dirname + '/..';
const publishReleaseAsync = promisify(publishRelease);
const subPackageName = '0x.js';
const githubPersonalAccessToken = process.env.GITHUB_PERSONAL_ACCESS_TOKEN_0X_JS;

let tag;
let version;
getLatestTagAndVersionAsync(subPackageName)
    .then(function(result) {
        console.log('POSTPUBLISH: Releasing...');
        tag = result.tag;
        version = result.version;
        const releaseName = subPackageName + ' v' + result.version;
        return publishReleaseAsync({
            token: githubPersonalAccessToken,
            owner: '0xProject',
            repo: '0x.js',
            tag: tag,
            name: releaseName,
            notes: 'TODO',
            draft: false,
            prerelease: true,
            reuseRelease: true,
            reuseDraftOnly: false,
            assets: [__dirname + '/../_bundles/index.js', __dirname + '/../_bundles/index.min.js'],
         });
    })
    .then(function(release) {
        console.log('POSTPUBLISH: Release successful, generating docs...');

        return execAsync(
            'JSON_FILE_PATH=' +  __dirname + '/../docs/index.json PROJECT_DIR=' + __dirname + '/.. yarn docs:json',
            {
                cwd,
            }
        );
    })
    .then(function(result) {
        if (result.stderr !== '') {
            throw new Error(result.stderr);
        }
        const fileName = 'v' + version + '.json';
        console.log('POSTPUBLISH: Doc generation successful, uploading docs... as ', fileName);
        const s3Url = 's3://0xjs-docs-jsons/' + fileName;
        return execAsync('S3_URL=' + s3Url + ' yarn upload_docs_json', {
            cwd,
        });
    }).catch (function(err) {
        throw err;
    });

function getLatestTagAndVersionAsync(subPackageName) {
    const subPackagePrefix = subPackageName + '@';
    const gitTagsCommand = 'git tags -l "' + subPackagePrefix + '*"';
    return execAsync(gitTagsCommand)
        .then(function(result) {
            if (result.stderr !== '') {
                throw new Error(result.stderr);
            }
            const tags = result.stdout.trim().split('\n');
            const versions = tags.map(function(tag) {
                return tag.slice(subPackagePrefix.length);
            });
            const sortedVersions = semverSort.desc(versions);
            const latestVersion = sortedVersions[0];
            const latestTag = subPackagePrefix + latestVersion;
            return {
                tag: latestTag,
                version: latestVersion
            };
        });
}