EchoAppsTeam/cloudapp-boilerplate

module.exports = function(grunt) {
    'use strict';

    require('time-grunt')(grunt);

    var _ = require('lodash');
    var path = require('path');
    var loadTasks = require('load-grunt-tasks');

    function createEnvironment() {
        var env = {
            debug: !!grunt.option('debug'),
            name: grunt.option('env'),
            list: ['development', 'test', 'staging', 'production']
        };
        if (!_.contains(env.list, env.name)) {
            env.name = 'development';
        }
        grunt.template.addDelimiters('configPlaceholder', '{%', '%}');
        env.replacePlaceholders = function(text) {
            // return text as is if there are no placeholders
            if (!/{%=/.test(text)) return text;
            return grunt.template.process(text, {
                data: grunt.config('env.config'),
                delimiters: 'configPlaceholder'
            });
        };
        return env;
    }

    function getEnvironmentConfig(name, pkg) {
        var envFilename = 'config/environments/' + name + '.json';
        if (!grunt.file.exists(envFilename)) return {};
        var config = grunt.file.readJSON(envFilename);
        var parts = pkg.version.split('.');
        config.packageVersions = {
            stable: parts.join('.'),
            latest: parts[0]
        };
        return config;
    }

    var cwd = process.cwd();
    function getPath(subpath, from) {
        return path.join(
            from === 'app' ? cwd : __dirname,
            subpath
        );
    }

    var env = createEnvironment();
    // print environment notice
    grunt.log.writeln('');
    grunt.log.writeln('DEBUG mode is ' + (env.debug ? 'ON'.green : 'OFF'.red));
    grunt.log.writeln('Working in the ' + (env.name === 'production' ? 'PRODUCTION'.red : env.name.toUpperCase().green) + ' environment');
    grunt.log.writeln('');

    ['own', 'app'].forEach(function(from) {
        var p = getPath('', from);
        grunt.verbose.subhead('Changing path to ' + p);
        process.chdir(p);
        grunt.loadTasks((from === 'own' ? 'dist/' : '') + 'grunt/tasks');
        loadTasks(grunt, {
            pattern: ['grunt-contrib-*', 'grunt-*', 'sphere']
        });
    });
    require('load-grunt-config')(grunt, {
        configPath: getPath('dist/grunt/config', 'own'),
        overridePath: getPath('grunt/config', 'app'),
        postProcess: function(config) {
            env.config = getEnvironmentConfig(env.name, config.package);
            config.env = env;
        }
    });

    grunt.registerTask('default', ['check-environment:' + env.name, 'newer:jshint', 'newer:jscs', 'clean:all', 'build']);
};