var gulp = require('gulp');
var clean = require('gulp-clean');
var minifyCss = require('gulp-minify-css');
var minifyHtml = require('gulp-minify-html');
var uglify = require('gulp-uglify');
var shell = require('gulp-shell');
var ts = require('gulp-typescript');
gulp.task("clean",function() {
    return gulp.src("./dst/*")
    .pipe(clean());           //plugins为加载的gulp-load-plugins插件,它可以自动加载项目依赖(package.json定义)
});
gulp.task("css",function() {
    return gulp.src(["public/**/*.css","!public/**/*.min.css"])
    .pipe(minifyCss({compatibility: "ie8"}))
    .pipe(gulp.dest("./dst/"));
});
gulp.task("js",function() {
    return gulp.src(["public/**/*.js","!public/**/*.min.js"])
   .pipe(ts({
      target: "es5",
      allowJs: true,
      module: "commonjs",
      moduleResolution: "node"
    }))
    .pipe(uglify())
    .pipe(gulp.dest("./dst/"));
});
gulp.task("html",function() {
    return gulp.src("public/**/*.html")
    .pipe(minifyHtml())
    .pipe(gulp.dest("./dst/"));
});
gulp.task("default",["css","js","html","mv"],function() {
    console.log("gulp task finished!");
});
gulp.task("watch",function() {
    gulp.watch("public/*",["default"]);
});
gulp.task("mv",function() {
    return gulp.src("./dst/*")
    .pipe(shell([
        "cp -r ./dst/* ./public/"
    ]));
});