import {Preset, Clean, Copy, Jekyll, CssNano, Sass, RollupEs, RollupUmd, RollupIife, ScssLint, EsLint, Aggregate, Uglify, parallel, series} from 'gulp-pipeline/src/index'

const referenceDocNotice =
  `$1\n
[//]: # DO NOT EDIT IT WILL BE OVERWRITTEN - copy of bootstrap documentation generated by gulp docs:copy:bs-docs\n
{% callout info %}\n**Bootstrap Reference Documentation**
This is a part of the reference documentation from <a href="http://getbootstrap.com">Bootstrap</a>.
It is included here to demonstrate rendering with Material Design for Bootstrap default styling.
See the <a href="/material-design/buttons">Material Design</a> section for more elements and customization options.
{% endcallout %}
\n\n$2`

const copyProcessor = (content, srcpath) => { // https://regex101.com/r/cZ7aO8/2
  return content
    .replace(/(---[\s\S]+?---)([\s\S]+)/mg, referenceDocNotice) // insert docs reference
    .replace(/Fancy display heading/, 'Fancy heading')          // remove sample text 'display' as this is a particular MD style and is confusing
}

const preset = Preset.baseline({
  javascripts: {
    source: {options: {cwd: 'docs/assets/js/src'}},
    watch: {options: {cwd: 'docs/assets/js/src'}},
    test: {options: {cwd: 'docs/assets/js/tests'}},
    dest: 'docs/dist'
  },
  stylesheets: {
    source: {options: {cwd: 'docs/assets/scss'}},
    watch: {options: {cwd: 'docs/assets/scss'}},
    dest: 'docs/dist'
  },
  images: {
    dest: 'docs/dist'
  },
  postProcessor: {
    dest: 'docs/dist'
  }
})

const prefix = {task: {prefix: 'docs:'}}

export default function (gulp, options) {

  let javascripts = parallel(gulp,
    new RollupIife(gulp, preset, prefix, options.rollupConfig, {
      options: {
        dest: 'docs.iife.js',
        moduleName: 'docs'
      }
    }),
    new Uglify(gulp, preset, prefix, {
      task: {name: 'vendor:uglify'},
      source: {options: {cwd: 'docs/assets/js/vendor'}},
      options: {dest: 'docs-vendor.min.js'}
    })
  )

  let eslint = new EsLint(gulp, preset, prefix)
  let scsslint = new ScssLint(gulp, preset, prefix, {
    source: {glob: ['**/*.scss', '!docs.scss']},
    watch: {glob: ['**/*.scss', '!docs.scss']}
  })
  let linters = parallel(gulp, scsslint, eslint)
  let sass = new Sass(gulp, preset, prefix)

  let recipes = series(gulp,
    new Clean(gulp, preset, prefix),
    linters,
    sass,
    javascripts,
    new CssNano(gulp, preset, prefix)
  )

  new Aggregate(gulp, 'default', recipes, prefix)
  new Aggregate(gulp, 'lint', linters, prefix)
  new Aggregate(gulp, 'js', series(gulp, eslint, javascripts), prefix)
  new Aggregate(gulp, 'css', series(gulp, scsslint, sass), prefix)

  // docs copy
  new Aggregate(gulp, 'copy:bs-docs', parallel(gulp,
    new Copy(gulp, preset, prefix, {
      task: false, //{name: 'copy:bs-docs-content'},
      source: {
        options: {cwd: '../bootstrap/docs/content'},
        glob: ['**/*']
      },
      dest: 'docs/content/',
      process: copyProcessor
    }),
    new Copy(gulp, preset, prefix, {
      task: false, //{name: 'copy:bs-docs-components'},
      source: {
        options: {cwd: '../bootstrap/docs/components'},
        glob: ['**/*']
      },
      dest: 'docs/components/',
      process: copyProcessor
    }),
    new Copy(gulp, preset, prefix, {
      task: false, //{name: 'copy:bs-docs-scss'},
      source: {
        options: {cwd: '../bootstrap/docs/assets/scss'},
        glob: ['**/*', '!docs.scss'] // keep variable customizations
      },
      dest: 'docs/assets/scss/',
      process: (content, srcpath) => {
        return content.replace(/([\s\S]+)/mg, '// DO NOT EDIT IT WILL BE OVERWRITTEN - copy of bootstrap documentation generated by gulp docs:copy:bs-docs\n\n$1');
      }
    }),
    new Copy(gulp, preset, prefix, {
      task: false, //{name: 'copy:bs-docs-plugins'},
      source: {
        options: {cwd: '../bootstrap/docs/_plugins'},
        glob: ['**/*', '!bridge.rb']
      },
      dest: 'docs/_plugins/'
    }),
    new Copy(gulp, preset, prefix, {
      task: false, //{name: 'copy:bs-docs-js-vendor'},
      source: {
        options: {cwd: '../bootstrap/docs/assets/js/vendor'},
        glob: [
          '**/*',
          '!tether.min.js',
          '!jquery.min.js'
        ]
      },
      dest: 'docs/assets/js/vendor/'
    }, prefix)
  ), prefix)

  return recipes
}