/* TODO
- add callbacks
 */
// EnrichedPlan
import Mustache from "mustache";

import enrichedPlanStyles from "./EnrichedPlan.module.css";

const EnrichedPlan = function (ns) {
  return class extends ns.Widgets.Widget {
    constructor(player, config) {
      super(player, config);
    }

    static defaults = {
      // Main type for slide segmentation
      annotation_type: "Slides",
      // If no annotation type list is specified, use all other types
      annotation_types: [],
      show_controls: true,
      show_slides: true,
      show_teacher_notes: true,
      show_other_notes: true,
      show_own_notes: true,
    };

    static template =
      '<div class="Ldt-EnrichedPlan-Container">' +
      '{{#show_controls}}<form class="Ldt-EnrichedPlan-Controls">' +
      ' <input id="{{prefix}}teacher_note_checkbox" class="Ldt-EnrichedPlan-Control-Checkbox Ldt-EnrichedPlan-Note-Teacher" {{#show_teacher_notes}}checked{{/show_teacher_notes}} type="checkbox">' +
      ' <label for="{{prefix}}teacher_note_checkbox" class="Ldt-EnrichedPlan-Control-Label Ldt-EnrichedPlan-Note-Teacher">Notes Enseignant</label>' +
      ' <input id="{{prefix}}other_note_checkbox" class="Ldt-EnrichedPlan-Control-Checkbox Ldt-EnrichedPlan-Note-Other" {{#show_other_notes}}checked{{/show_other_notes}} type="checkbox">' +
      ' <label for="{{prefix}}other_note_checkbox" class="Ldt-EnrichedPlan-Control-Label Ldt-EnrichedPlan-Note-Other">Notes Autres</label>' +
      ' <input id="{{prefix}}simplified_plan_checkbox" class="Ldt-EnrichedPlan-Control-Checkbox Ldt-EnrichedPlan-Note-Own" {{#show_own_notes}}checked{{/show_own_notes}} type="checkbox">' +
      ' <label for="{{prefix}}simplified_plan_checkbox" class="Ldt-EnrichedPlan-Control-Label Ldt-EnrichedPlan-Note-Own">Notes perso.</label>' +
      ' <input id="{{prefix}}slide_display_checkbox" class="Ldt-EnrichedPlan-Control-Checkbox Ldt-EnrichedPlan-Slide-Display" {{#show_slides}}checked{{/show_slides}} type="checkbox">' +
      ' <label for="{{prefix}}slide_display_checkbox" class="Ldt-EnrichedPlan-Control-Label Ldt-EnrichedPlan-Slide-Display">Diapo<br/>&nbsp;</label>' +
      ' <input class="Ldt-EnrichedPlan-Search-Input" type="search" incremental placeholder="Recherchez"/>' +
      "</form>{{/show_controls}}" +
      '<div class="Ldt-EnrichedPlan-Content"></div>' +
      "</div>";

    static slideTemplate =
      '<div data-id="{{ id }}" class="Ldt-EnrichedPlan-Slide">' +
      '  <div class="Ldt-EnrichedPlan-SlideItem Ldt-EnrichedPlan-SlideTimecode">{{ begin }}</div>' +
      '  <div data-timecode="{{begintc}}" class="Ldt-EnrichedPlan-SlideItem {{^show_slides}}filtered_out{{/show_slides}} Ldt-EnrichedPlan-SlideThumbnail Ldt-EnrichedPlan-Slide-Display"><img title="{{ begin }} - {{ atitle }}" src="{{ thumbnail }}"></div>' +
      '  <div class="Ldt-EnrichedPlan-SlideContent">' +
      '     <div data-timecode="{{begintc}}" class="Ldt-EnrichedPlan-SlideTitle Ldt-EnrichedPlan-SlideTitle{{ level }}">{{ atitle }}</div>' +
      '     <div class="Ldt-EnrichedPlan-SlideNotes">{{{ notes }}}</div>' +
      "  </div>" +
      "</div>";

    annotationTemplate =
      '<div title="{{ begin }} - {{ atitle }}" data-id="{{ id }}" data-timecode="{{begintc}}" class="Ldt-EnrichedPlan-SlideItem Ldt-EnrichedPlan-Note {{category}} {{filtered}}"><span class="Ldt-EnrichedPlan-Note-Text">{{{ text }}}</span> <span class="Ldt-EnrichedPlan-Note-Author">{{ author }}</span></div>';

    draw() {
      var _this = this;
      // Generate a unique prefix, so that ids of input fields
      // (necessary for label association) are unique too.
      _this.prefix = "TODO";
      // slides content: title, level (for toc)
      var _slides = this.getWidgetAnnotations().sortBy(function (_annotation) {
        return _annotation.begin;
      });
      // All other annotations
      var _annotations = this.media
        .getAnnotations()
        .filter(function (a) {
          return a.getAnnotationType().title != _this.annotation_type;
        })
        .sortBy(function (_annotation) {
          return _annotation.begin;
        });

      // Reference annotations in each slide: assume that end time is
      // correctly set.
      _slides.forEach(function (slide) {
        slide.annotations = _annotations.filter(function (a) {
          return a.begin >= slide.begin && a.begin <= slide.end;
        });
      });

      _this.renderTemplate();
      var container = _this.$.find(".Ldt-EnrichedPlan-Container");
      var content = _this.$.find(".Ldt-EnrichedPlan-Content");

      // Returns the note category: Own, Other, Teacher
      function note_category(a) {
        return a.title.indexOf("Anonyme") < 0 ? "Own" : "Other";
      }

      _slides.forEach(function (slide) {
        var _html = Mustache.render(_this.slideTemplate, {
          id: slide.id,
          atitle: ns.textFieldHtml(slide.title),
          level: slide.content.level || 1,
          begin: slide.begin.toString(),
          begintc: slide.begin.milliseconds,
          thumbnail: slide.thumbnail,
          show_slides: _this.show_slides,
          notes: slide.annotations
            .map(function (a) {
              return Mustache.render(_this.annotationTemplate, {
                id: a.id,
                text: ns.textFieldHtml(a.description || a.title),
                author: a.creator,
                begin: a.begin.toString(),
                begintc: a.begin.milliseconds,
                atitle: a.title.slice(0, 20),
                // FIXME: Temporary hack waiting for a proper metadata definition
                category: "Ldt-EnrichedPlan-Note-" + note_category(a),
                filtered:
                  (note_category(a) == "Own" && !_this.show_own_notes) ||
                  (note_category(a) == "Other" && !_this.show_other_notes) ||
                  (note_category(a) == "Teacher" && !_this.show_teacher_notes)
                    ? "filtered_out"
                    : "",
              });
            })
            .join("\n"),
        });
        var _el = ns.jQuery(_html);
        content.append(_el);
      });

      container.on("click", "[data-timecode]", function () {
        _this.media.setCurrentTime(Number(this.dataset.timecode));
      });

      container.on("click", ".Ldt-EnrichedPlan-Control-Checkbox", function () {
        var classname = _.first(
          _.filter(this.classList, function (s) {
            return s != "Ldt-EnrichedPlan-Control-Checkbox";
          })
        );
        if (classname !== undefined) {
          if ($(this).is(":checked")) {
            content
              .find(".Ldt-EnrichedPlan-Slide ." + classname)
              .removeClass("filtered_out");
          } else {
            content
              .find(".Ldt-EnrichedPlan-Slide ." + classname)
              .addClass("filtered_out");
          }
        }
      });

      container
        .find(".Ldt-EnrichedPlan-Search-Input")
        .on("search", function () {
          var q = $(this).val().toLocaleLowerCase();
          if (q === "") {
            // Show all
            content.find(".Ldt-EnrichedPlan-Note").removeClass("non_matching");
          } else {
            $(".Ldt-EnrichedPlan-Note").each(function () {
              var node = $(this);
              if (node.text().toLocaleLowerCase().indexOf(q) > -1) {
                node.removeClass("non_matching");
              } else {
                node.addClass("non_matching");
              }
            });
          }
        });
    }
  };
};

export { EnrichedPlan, enrichedPlanStyles };
