var kit = require('nokit');
var _ = kit._;
var Promise = kit.Promise;
kit.require('drives');
var zlib = require('zlib');

module.exports = function (task, option) {
    option('-g, --grep <pattern>', 'run test that match the pattern', '.');
    option('--noAplus', 'don\'t run the promises-aplus-tests');
    option('-w, --watch', 'webpack watch');
    option('-s, --shim <name>', 'the promise shim to require, check the test/getPromise.js file for details', 'yaku');
    option('-n, --disableCountTest', 'whether to count test when benchmarking', 'yaku');

    task('default build', 'build the project', ['all', 'doc', 'code', 'browser'], true);

    task('doc', ['code'], 'build doc', function () {
        var size = zlib.gzipSync(kit.readFileSync('dist/yaku.min.js')).length / 1024;
        var aplusSize = zlib.gzipSync(kit.readFileSync('dist/yaku.aplus.min.js')).length / 1024;
        return kit.warp('src/*.js')
            .load(kit.drives.comment2md({
                tpl: 'docs/readme.jst.md',
                doc: {
                    size: size.toFixed(1),
                    aplusSize: aplusSize.toFixed(1)
                }
            })).run();
    });

    function addLicense (str) {
        var version;
        version = kit.require('./package', __dirname).version;
        return ('/*\n Yaku v' + version +
            '\n (c) 2015 Yad Smood. http://ysmood.org\n License MIT\n*/\n')
            + str;
    }

    task('code', ['lint'], 'build source code', function () {
        return kit.warp(['src/**', 'src/*.d.ts']).load(function (f) {
            if (f.dest.name === 'yaku') {
                return f.set(addLicense(f.contents));
            }
        }).run('lib').then(function () {
            kit.mkdirsSync('dist');
            return Promise.all([
                kit.spawn('uglifyjs', ['-mc', '-o', 'dist/yaku.min.js', 'lib/yaku.js']),
                kit.spawn('uglifyjs', ['-mc', '-o', 'dist/yaku.aplus.min.js', 'lib/yaku.aplus.js']),
                kit.spawn('uglifyjs', ['-mc', '-o', 'dist/yaku.core.min.js', 'lib/yaku.core.js'])
            ]);
        });
    });

    task('lint', 'lint js files', function () {
        return kit.spawn('eslint', ['*.js', 'src/*.js', 'test/*.js']);
    });

    task('all', ['lint'], 'bundle all', function () {
        process.env.NODE_ENV = 'production';
        return kit.spawn('webpack');
    });

    task('lab l', 'run and monitor "test/lab.js"', function () {
        var args;
        args = ['test/lab.js'];
        return kit.monitorApp({
            args: args,
            watchList: ['src/*.js', 'test/**']
        });
    });

    task('test', 'run all tests', [
        'code',
        'test-basic', 'test-yaku', 'test-browser',
        'test-forge-browser',
        'test-forge-old-browser',
        'test-aplus', 'test-es6',
        'coverage'
    ], true);

    task('test-core', 'run tests for yaku.core', true, function () {
        return kit.spawn('no', [
            '--shim', 'yaku.core',
            'test-basic', 'test-aplus', 'test-es6'
        ]);
    });

    task('test-yaku', 'run yaku specs', function (opts) {
        var junitOpts = ['cover', 'junit',
            '--print', 'none',
            '--dir', 'coverage/yaku', '--', '-g', opts.grep];

        return kit.spawn('istanbul', junitOpts.concat([
            'test/utils.js',
            'test/unhandledRejection.js'])
        );
    });

    task('test-basic', 'run basic specs tests', function (opts) {
        var junitOpts = ['cover', 'junit',
            '--print', 'none',
            '--dir', 'coverage/basic', '--', '-g', opts.grep, '-b', 'off'];

        process.env.shim = opts.shim;

        return kit.spawn('istanbul', junitOpts.concat([
            'test/basic.js',
            'test/finally.js'
        ]));
    });

    task('test-forge-browser', 'forge browser env and test', function (opts) {
        var junitOpts = ['cover', 'junit',
            '--print', 'none',
            '--dir', 'coverage/forge-browser', '--', '-g', opts.grep, '-b', 'off'];

        return kit.spawn('istanbul', junitOpts.concat(['test/forge-browser.js']));
    });

    task('test-forge-old-browser', 'forge browser without Promise env and test', function (opts) {
        var junitOpts = ['cover', 'junit',
            '--print', 'none',
            '--dir', 'coverage/forge-old-browser', '--', '-g', opts.grep, '-b', 'off'];

        return kit.spawn('istanbul', junitOpts.concat(['test/forge-old-browser.js']));
    });

    task('test-aplus', 'run aplus tests', function (opts) {
        return kit.spawn('istanbul', [
            'cover',
            '--print', 'none',
            'test/promises-aplus-tests.js',
            '--dir', 'coverage/aplus',
            '--',
            JSON.stringify(opts)
        ]);
    });

    task('test-es6', 'run es6 tests', function (opts) {
        return kit.spawn('istanbul', [
            'cover',
            '--print', 'none',
            'test/promises-es6-tests.js',
            '--dir', 'coverage/aplus',
            '--',
            JSON.stringify(opts)
        ]);
    });

    task('test-browser', ['browser'], 'use puppeteer to test', function () {
        return require('./test/puppeteer');
    });

    task('coverage', 'combine the coverage reports', function () {
        return kit.spawn('istanbul', [
            'report', '--include',
            'coverage/*/coverage.json'
        ]);
    });

    task('benchmark', 'compare performance between different libraries', function (opts) {
        process.env.NODE_ENV = 'production';

        var os = require('os');
        global.console.log('Date: ' + (new Date)
            + "\nNode " + process.version // eslint-disable-line
            + '\nOS   ' + (os.platform())
            + '\nArch ' + (os.arch())
            + '\nCPU  ' + (os.cpus()[0].model) + '\n\n'
            + '| name | unit tests | coverage | 1ms async task | optional helpers | helpers | gzip |\n'
            + '| ---- | ---------- | -------- | -------------- | ---------------- | ------- | ---- |'
        );

        var names = _.keys(require('./test/getPromise').map);

        return kit.all(1, { next: function () {
            var name = names.shift();
            return {
                done: !name,
                value: name && kit.spawn('node', [
                    'benchmark/index.js',
                    name,
                    opts.disableCountTest ? 'off' : 'on'
                ])
            };
        } });
    });

    task('benchmark-asyncWrapper', 'run async benchmark', function () {
        process.env.NODE_ENV = 'production';

        var names = _.keys(require('./benchmark/asyncWrapper/getWrapper').map);

        return kit.all(1, { next: function () {
            var name = names.shift();
            return {
                done: !name,
                value: name && kit.spawn('node', ['benchmark/asyncWrapper/index.js', name])
            };
        } });
    });

    task('clean', 'clean temp files', function () {
        return kit.remove('{lib,dist}');
    });

    task('browser', 'run test on browser', function () {
        return kit.spawn('webpack');
    });
};