//定义依赖插件
var gulp       = require('gulp'),
	less       = require('gulp-less'),
	rjs        = require('gulp-requirejs'),
	uglify     = require('gulp-uglify'),
	maps       = require('gulp-sourcemaps'),
	minifycss  = require('gulp-minify-css'),
	sprite     = require('gulp.spritesmith'),
	clean      = require('gulp-clean'),
	plumber    = require('gulp-plumber'),
	rename     = require('gulp-rename'),
	livereload = require('gulp-livereload'),
	//定义依赖路径
	path       = {
					dev: 'dev/',
					dest: 'dest/'
				};

//less task  转换成css
gulp.task('less', function () {
    gulp
		.src(path.dev+'less/styles.less')
        .pipe(maps.init())
		.pipe(plumber(function(error){
			console.log(error);
			console.log('--------------------------  less Syntax Error! --------------------------');
		}))
		.pipe(less())
		.pipe(minifycss({compatibility: 'ie7'}))
		.pipe(maps.write('./'))
        .pipe(gulp.dest(path.dest+'css'))
        .pipe(livereload())
    gulp
		.src(path.dev+'less/print.less')
	    .pipe(maps.init())
		.pipe(plumber(function(error){
			console.log(error);
			console.log('--------------------------  less Syntax Error! --------------------------');
		}))
		.pipe(less())
		.pipe(minifycss({compatibility: 'ie7'}))
		.pipe(maps.write('./'))
	    .pipe(gulp.dest(path.dest+'css'))
        .pipe(livereload())
});

//requirejs   由于项目依赖于requirejs  所以把require模块全部合并
gulp.task('r', function() {
	gulp
		.src(path.dev+'js/config.js')
		.pipe(gulp.dest(path.dest+'js'));
		
	gulp
		.src(path.dev+'js/app/ZeroClipboard.swf')
		.pipe(gulp.dest(path.dest+'js/app/'));
		
    rjs({
        name: 'app/main',
        baseUrl: 'dev/js/lib/',
		paths: {
			core: '../core',
			app:  '../app'
		},
		mainConfigFile:'dev/js/config.js',
        out: 'main.js',
		optimize:false
    })
	//.pipe(uglify())
	.pipe(maps.write('./'))
    .pipe(gulp.dest(path.dest+'js/app/'));
});

//清理图片
gulp.task('cleanDefaultImg', function() {
	gulp
		.src([
			path.dest+'img/default/*'
		], {read: false})
		.pipe(clean({force: true}));
});
gulp.task('cleanSpriteImg', function() {
	gulp
		.src([
			path.dest+'img/sprite/*'
		], {read: false})
		.pipe(clean({force: true}));
});

//复制文件
gulp.task('copy', function(){
	gulp
		.src(path.dev+'less/lib/font-awesome-ie7.min.css')
		.pipe(gulp.dest(path.dest+'css/'));
		
	gulp
		.src(path.dev+'less/fonts/*')
		.pipe(gulp.dest(path.dest+'css/fonts/'));	
		
	gulp
		.src(path.dev+'js/lib/*')
		.pipe(gulp.dest(path.dest+'js/lib/'));
	gulp
		.src(path.dev+'fonts/*')
		.pipe(gulp.dest(path.dest+'fonts/'));
	gulp
		.src(path.dev+'img/default/*.jpg')
		.pipe(gulp.dest(path.dest+'img/'));
		
	gulp.src(path.dev+'img/default/*.gif')
		.pipe(gulp.dest(path.dest+'img/'));
		
	gulp.src(path.dev+'img/default/*.png')
		.pipe(gulp.dest(path.dest+'img/'));
});

//合并png
gulp.task('spritePNG', function () {	
	var spriteData = gulp
						.src(path.dev+'img/sprite/**.png')
						.pipe(sprite({
							imgName: 'sprite.png',
							cssName: 'spritePNG.css',
							imgPath: '../img/sprite.png'
						}));
		spriteData
			.img
			.pipe(gulp.dest(path.dest+'img/'));
		
		spriteData
			.css
			.pipe(gulp.dest(path.dev+'less/'))
			.pipe(rename(function (path) {
				path.extname = '.less'
			}))
			.pipe(gulp.dest(path.dev+'less/'));
});

//合并jpg
gulp.task('spriteJPG', function () {
	var spriteData = gulp
						.src(path.dev+'sprite/*.jpg')
						.pipe(sprite({
							imgName: 'sprite.jpg',
							cssName: 'spriteJPG.css',
							imgPath: '../img/sprite.jpg'
						}));
		spriteData
			.img
			.pipe(gulp.dest(path.dest+'img/'));
		
		spriteData
			.css
			.pipe(gulp.dest(path.dev+'less/'))
			.pipe(rename(function (path) {
				path.extname = '.less'
			}))
			.pipe(gulp.dest(path.dev+'less/'));
});

//合并jpg和png
gulp.task('sprite', function(){
	gulp.run('spritePNG');
	gulp.run('spriteJPG');
});

//gulp default 监听
gulp.task('default', function(){
		// livereload.listen({livereloadPort:38154});
		livereload.listen();
	//监听js
    gulp.watch(path.dev+'js/**', function(){
        gulp.run('r');
    });
	
    //监听less
    gulp.watch(path.dev+'less/**', function(){
        gulp.run('less');
    });
	
	//监听不合并图片
	gulp.watch(path.dev+'img/default/**', function(){
		gulp.run('cleanDefaultImg');
		gulp.run('copy');
	});
	
	//监听sprite png
	gulp.watch(path.dev+'img/sprite/**.png', function(){
		gulp.run('cleanSpriteImg');
		gulp.run('spritePNG');
	});
	
	//监听sprite jpg
	gulp.watch(path.dev+'img/sprite/**.jpg', function(){
		gulp.run('spriteJPG');
	});
	
});