// vim: set tw=80 ts=4 sw=4 sts=4:

'use strict';

module.exports = function(grunt) {
    // Grunt plugin initialization.
    // ============================

    // Automagically load grunt tasks.
    require('load-grunt-tasks')(grunt);

    // Display duration for each task.
    require('time-grunt')(grunt);

    // Options
    var options = {
        // Application related configuration.
        accountant: {
            // Frontend related
            frontend: {
                // Application dependencies by bower.
                app: require('./bower.json'),
                // Source path
                src: 'accountant-ui',
                // Distribution path
                dist: 'accountant-ui/dist'
            }
        },

        // Grunt configurationi files.
        config: {
            src: 'grunt-config/*.js'
        },
        // Package description for NPM.
        pkg: grunt.file.readJSON('package.json')
        // banner: '/*! <%= pkg.name %> <%= grunt.template.today("dd-mm-yyyy") %>\n' +
        //   '* Copyright (c) <%= grunt.template.today("yyyy") %> <%= pkg.author %> */\n'
    };

    // Load configuration from Grunt configuration directory.
    var configs = require('load-grunt-configs')(grunt, options);

    // Initialize Grunt configuration.
    grunt.initConfig(configs);

    // Toolchain tasks.
    // ================

    // Manage dev dependencies with npm
    grunt.registerTask('npm', [
        // Linting on package.json.
        'newer:jsonlint:package',
        // NodeJS dependencies.
        'shell:npmInstall'
    ]);

    grunt.registerTask('grunt', [
        // Linting on Grunt files.
        'newer:eslint:grunt',
    ]);

    // Manage toolchain
    grunt.registerTask('toolchain', [
        // NPM.
        'npm',
        // Grunt.
        'grunt'
    ]);

    // Backend tasks.
    // ==============

    // Manage backend dependencies with pip.
    grunt.registerTask('beDeps', [
        // Python dependencies. Does not work in virtualenv.
        //'shell:pipInstall'
    ]);

    // Backend linting
    grunt.registerTask('beLint', [
        // Use flake8 for python linting.
        'newer:flake8'
    ]);

    // Backend dev task.
    grunt.registerTask('beDev', [
        'beDeps',
        'beLint'
    ]);

    // Frontend tasks.
    // ===============

    // Front dependency management.
    grunt.registerTask('feDeps', [
        // Bower file linting
        'newer:jsonlint:bower',
        // Web assets using bower
        'shell:bowerInstall',
        // Inject dependencies into application.
        'wiredep:app'
    ]);

    // Generate needed files.
    grunt.registerTask('feGen', [
        // Generate CSS from Less.
        'newer:less:frontend'
    ]);

    // Linting
    grunt.registerTask('feLint', [
        // ECMAScript
        'newer:eslint:frontend',
        // CSS
        'newer:csslint:frontend',
        // HTML.
        'newer:htmllint'
    ]);

    // Frontend dev task.
    grunt.registerTask('feDev', [
        'feDeps',
        'feLint'
    ]);

    // Global tasks.
    // =============

    // Dev.
    grunt.registerTask('dev', [
        'toolchain',
        'beDev',
        'feDev'
    ]);

    // Serve application.
    grunt.registerTask('serve', [
        'dev',
        'bgShell:runserver',
        'connect:livereload',
        'watch'
    ]);

    // Make distribution.
    grunt.registerTask('dist', [
        'dev',
        'clean:dist',
        'useminPrepare',
        'copy:dist',
        'copy:styles',
        'cssmin:generated',
        'concat:generated',
        'ngAnnotate',
        'uglify:generated',
        'filerev',
        'usemin'
    ]);
};