<?php

final class PhabricatorWorkboardView extends AphrontView {

  private $panels = array();
  private $flexLayout = false;
  private $actions = array();

  public function addPanel(PhabricatorWorkpanelView $panel) {
    $this->panels[] = $panel;
    return $this;
  }

  public function setFlexLayout($layout) {
    $this->flexLayout = $layout;
    return $this;
  }

  public function addAction(PhabricatorWorkboardActionView $action) {
    $this->actions[] = $action;
    return $this;
  }

  public function render() {
    require_celerity_resource('phabricator-workboard-view-css');

    $classes = array();
    $classes[] = 'phabricator-workboard-view-inner';

    if (count($this->panels) > 6) {
      throw new Exception("No more than 6 panels per workboard.");
    }

    $action_list = null;
    if (!empty($this->actions)) {
      $items = array();
      foreach ($this->actions as $action) {
        $items[] = phutil_tag(
          'li',
            array(
              'class' => 'phabricator-workboard-action-item'
            ),
            $action);
      }
      $action_list = phutil_tag(
        'ul',
          array(
            'class' => 'phabricator-workboard-action-list'
          ),
          $items);
    }

    $classes[] = 'workboard-'.count($this->panels).'-up';

    $view = phutil_tag(
      'div',
      array(
        'class' => implode(' ', $classes),
      ),
      array(
        $this->panels,
      ));

    $classes = array();
    $classes[] = 'phabricator-workboard-view-outer';
    if ($this->flexLayout) {
      $classes[] = 'phabricator-workboard-flex';
    } else {
      $classes[] = 'phabricator-workboard-fixed';
    }

    $board = phutil_tag(
      'div',
        array(
          'class' => implode(' ', $classes)
        ),
        $view);

    return phutil_tag(
      'div',
        array(
          'class' => 'phabricator-workboard-view'
        ),
        array(
          $action_list,
          $board
        ));
  }
}