module.exports = function(grunt) {

    // Project configuration.
    grunt.initConfig({

        //Read the package.json (optional)
        pkg: grunt.file.readJSON('package.json'),

        // Metadata.
        meta: {
            basePath: '',
            srcPath: 'assets/sass/',
            deployPath: 'assets/css/',
        },

		// Display
        banner: '/*! <%= pkg.name %> - v<%= pkg.version %> - ' +
                '<%= grunt.template.today("yyyy-mm-dd") %>\n' +
                '* Copyright (c) <%= grunt.template.today("yyyy") %> ',
				
		// split tasks
		sass: {
            score: {
                files: {
                    '<%= meta.deployPath %>core.css': '<%= meta.srcPath %>core.scss',
                }
            },
            sbuilder: {
                files: {
                    '<%= meta.deployPath %>builder.css': '<%= meta.srcPath %>builder.scss',
                }
            },
            sbackend: {
                files: {
                    '<%= meta.deployPath %>backend.css': '<%= meta.srcPath %>backend.scss',
                }
            },
        },
		focus: {
            score: { include: ['score'] },
            sbuilder: { include: ['sbuilder'] },
            sbackend: { include: ['sbackend'] },
        },
        cssmin: {
            score: {
                files: {
                    '<%= meta.deployPath %>core.min.css': '<%= meta.deployPath %>core.css',
                }
            },
            sbuilder: {
                files: {
                    '<%= meta.deployPath %>builder.min.css': '<%= meta.deployPath %>builder.css',
                }
            },
        },
        watch: {
            score: {
                files: [
                	'<%= meta.srcPath %>/modules/**/*.scss',
                    '<%= meta.srcPath %>/partials/item/*.scss',
                    '<%= meta.srcPath %>/partials/modal/*.scss',
                    '<%= meta.srcPath %>/partials/gallery.scss',
                    '<%= meta.srcPath %>/partials/items.scss',
                    '<%= meta.srcPath %>/partials/lightbox.scss',
                    '<%= meta.srcPath %>/partials/modal.scss',
                	'<%= meta.srcPath %>/core.scss'
                ],
                tasks: ['sass:score'],
                options: {
                    livereload: true,
                    maxListeners: 99
                }
            },
            sbackend: {
                files: [
                    '<%= meta.srcPath %>/modules/**/*.scss',
                    '<%= meta.srcPath %>/backend.scss'
                ],
                tasks: ['sass:sbackend'],
                options: {
                    livereload: true,
                    maxListeners: 99
                }
            },
            sbuilder: {
                files: [
                    '<%= meta.srcPath %>/modules/**/*.scss',
                    '<%= meta.srcPath %>/partials/builder/*.scss',
                    '<%= meta.srcPath %>/builder.scss'
                ],
                tasks: ['sass:sbuilder'],
                options: {
                    livereload: true,
                    maxListeners: 99
                }
            },
            minify: {
                files: [
                    '<%= meta.deployPath %>core.css'
                ],
                tasks: ['minify'],
            },
            minify_builder: {
                files: [
                    '<%= meta.deployPath %>builder.css',
                ],
                tasks: ['minify_builder'],
            },
        },
    });

    // These plugins provide necessary tasks.
    grunt.loadNpmTasks('grunt-contrib-sass');
    grunt.loadNpmTasks('grunt-contrib-watch');
    grunt.loadNpmTasks('grunt-contrib-cssmin');
    grunt.loadNpmTasks('grunt-focus');

    // register task.
    grunt.registerTask('default', ['watch', 'focus', 'sass' , 'cssmin']);
    grunt.registerTask('score', [ 'focus:score' ]);
    grunt.registerTask('sbuilder', [ 'focus:sbuilder' ]);
    grunt.registerTask('sbackend', [ 'focus:sbackend' ]);
    grunt.registerTask('minify', [ 'cssmin:score' ]);
    grunt.registerTask('minify_builder', [ 'cssmin:sbuilder' ]);

};