var gulp = require('gulp')
var $ = require('gulp-load-plugins')()
var path = require('path')
var del = require('del')

var distPath = path.resolve('./dist')
var version = '' // 版本号
var versionPath = '' // 版本号路径
var env = ''; // 运行环境

// 创建版本号(年月日时分)
(function () {
  var d = new Date()
  var yy = d.getFullYear().toString().slice(2)
  var MM = d.getMonth() + 1 >= 10 ? (d.getMonth() + 1) : '0' + (d.getMonth() + 1)
  var DD = d.getDate() >= 10 ? d.getDate() : '0' + d.getDate()
  var h = d.getHours() >= 10 ? d.getHours() : '0' + d.getHours()
  var mm = d.getMinutes() >= 10 ? d.getMinutes() : '0' + d.getMinutes()
  version = yy + MM + DD + h + mm
  versionPath = distPath + '/' + version
})()

// 编译
gulp.task('build', $.shell.task(['node build/build.js']))

// 创建版本号目录
gulp.task('create:versionCatalog', gulp.series('build', function () {
  return gulp.src(`${distPath}/static/**/*`)
    .pipe(gulp.dest(`${versionPath}/static/`))
}))

// 替换${versionPath}/static/js/manifest.js window.SITE_CONFIG.cdnUrl占位变量
gulp.task('replace:cdnUrl', gulp.series('create:versionCatalog', function () {
  return gulp.src(`${versionPath}/static/js/manifest.js`)
    .pipe($.replace(new RegExp(`"${require('./config').build.assetsPublicPath}"`, 'g'), 'window.SITE_CONFIG.cdnUrl + "/"'))
    .pipe(gulp.dest(`${versionPath}/static/js/`))
}))

// 替换${versionPath}/static/config/index-${env}.js window.SITE_CONFIG['version']配置变量
gulp.task('replace:version', gulp.series('create:versionCatalog', function () {
  return gulp.src(`${versionPath}/static/config/index-${env}.js`)
    .pipe($.replace(/window.SITE_CONFIG\['version'\] = '.*'/g, `window.SITE_CONFIG['version'] = '${version}'`))
    .pipe(gulp.dest(`${versionPath}/static/config/`))
}))

// 合并${versionPath}/static/config/[index-${env}, init].js 至 ${distPath}/config/index.js
gulp.task('concat:config', gulp.series('replace:version', function () {
  return gulp.src([`${versionPath}/static/config/index-${env}.js`, `${versionPath}/static/config/init.js`])
    .pipe($.concat('index.js'))
    .pipe(gulp.dest(`${distPath}/config/`))
}))

// 清空文件历史
gulp.task('clean', function () {
  console.log('--clean--')
   // del([`${distPath}/static`, `${versionPath}/static/config`]);
  // return del([versionPath])
  return del([`${distPath}`])
})

gulp.task('build-end', function () {
  console.log('--builed-end--')
  // del([`${distPath}/static`, `${versionPath}/static/config`]);
  return   del([`${distPath}/static`, `${versionPath}/static/config`]);
})

env = process.env.npm_config_qa ? 'qa' : process.env.npm_config_uat ? 'uat' : 'prod'

gulp.task('default',
  gulp.series('clean',
    gulp.parallel('create:versionCatalog', 'replace:cdnUrl', 'replace:version', 'concat:config'),
    'build','build-end')
  )




/* gulp.task('default', gulp.series('clean', function (done) {
  // 获取环境配置
  env = process.env.npm_config_qa ? 'qa' : process.env.npm_config_uat ? 'uat' : 'prod'
  // 开始打包编译
// 开始打包编译
  gulp.task('default', gulp.series('build','create:versionCatalog', 'replace:cdnUrl', 'replace:version', 'concat:config', function (done) {
    // 清除, 编译 / 处理项目中产生的文件
    del([`${distPath}/static`, `${versionPath}/static/config`])
    done();
  }))
})); */

/*
gulp.task('default', gulp.series('clean', function (done) {
    // 获取环境配置
     env = process.env.npm_config_qa ? 'qa' : process.env.npm_config_uat ? 'uat' : 'prod'
  // 开始打包编译
// 开始打包编译
    gulp.task('default', gulp.series('build','create:versionCatalog', 'replace:cdnUrl', 'replace:version', 'concat:config', function (done) {
      // 清除, 编译 / 处理项目中产生的文件
      del([`${distPath}/static`, `${versionPath}/static/config`])
      done();
    }))
}));
*/