"use strict";

var gulp = require("gulp"),
    minifycss = require("gulp-clean-css"),
    uglify = require("gulp-uglify"),
    concat = require("gulp-concat"),
    header = require("gulp-header"),
    buffer = require("vinyl-buffer"),
    pkg = require("./package.json"),
    debug = require("gulp-debug"),
    eslint = require("gulp-eslint"),
    browserify = require("browserify"),
    source = require("vinyl-source-stream"),
    rename = require("gulp-rename");

var banner = ["/**",
    " * <%= pkg.name %> v<%= pkg.version %>",
    " * Copyright <%= pkg.author %>",
    " * @link <%= pkg.repository.url %>",
    " * @license <%= pkg.license %>",
    " */",
    ""].join("\n");

gulp.task("lint", function () {
    gulp.src("./src/js/**/*.js")
        .pipe(debug())
        .pipe(eslint())
        .pipe(eslint.format())
        .pipe(eslint.failAfterError());
});

function taskBrowserify(opts) {
    return browserify("./src/js/simplemde.js", opts)
        .bundle();
}

gulp.task("browserify:debug", ["lint"], function () {
    return taskBrowserify({debug: true, standalone: "SimpleMDE"})
        .pipe(source("simplemde.debug.js"))
        .pipe(buffer())
        .pipe(header(banner, {pkg: pkg}))
        .pipe(gulp.dest("./debug/"));
});

gulp.task("browserify", ["lint"], function () {
    return taskBrowserify({standalone: "SimpleMDE"})
        .pipe(source("simplemde.js"))
        .pipe(buffer())
        .pipe(header(banner, {pkg: pkg}))
        .pipe(gulp.dest("./debug/"));
});

gulp.task("scripts", ["browserify:debug", "browserify", "lint"], function () {
    var js_files = ["./debug/simplemde.js"];

    return gulp.src(js_files)
        .pipe(concat("simplemde.min.js"))
        .pipe(uglify())
        .pipe(buffer())
        .pipe(header(banner, {pkg: pkg}))
        .pipe(gulp.dest("./dist/"));
});

gulp.task("styles", function () {
    var css_files = [
        "./node_modules/codemirror/lib/codemirror.css",
        "./src/css/*.css",
        "./node_modules/codemirror-spell-checker/src/css/spell-checker.css"
    ];

    return gulp.src(css_files)
        .pipe(concat("simplemde.css"))
        .pipe(buffer())
        .pipe(header(banner, {pkg: pkg}))
        .pipe(gulp.dest("./debug/"))
        .pipe(minifycss())
        .pipe(rename("simplemde.min.css"))
        .pipe(buffer())
        .pipe(header(banner, {pkg: pkg}))
        .pipe(gulp.dest("./dist/"));
});

gulp.task("default", ["scripts", "styles"]);