/**
 * @name Inline Notes
 * @author Julien Bidoret
 * @author Julie Blanc <contact@julie-blanc.fr>
 * @see { @link https://gitlab.com/csspageweaver/plugins/inlineNotes }
 */

import { Handler } from '/csspageweaver/lib/paged.esm.js';

export default class inlineNotes extends Handler {

  constructor(chunker, polisher, caller) {
    super(chunker, polisher, caller);
    this.input = cssPageWeaver.features.inlineNotes.parameters?.input || ".footnote-ref"; // ← CSS selector of the call element 
    this.containerNotes = cssPageWeaver.features.inlineNotes.parameters?.containerNotes || "#footnotes"; // ← CSS selector of the container of the footnote
    this.newClass = cssPageWeaver.features.inlineNotes.parameters?.newClass || "inline-note"; // ← Class of the span create for the note
  }

  beforeParsed(content) {

   // ---- HUGO SPECIFIC // Correction des ids et href 'fn:' en 'fn-' ----
   // 1. Tous les éléments avec un id commençant par "fn:"
   content.querySelectorAll('[id^="fn:"]').forEach(el => {
      el.id = el.id.replace(/:/g, '-');
   });

   // 2. Tous les éléments avec un id commençant par "fnref:"
   content.querySelectorAll('[id^="fnref:"]').forEach(el => {
      el.id = el.id.replace(/:/g, '-');
   });

   // 3. Tous les éléments avec un href commençant par "#fn:"
   content.querySelectorAll('[href^="#fn:"]').forEach(el => {
      el.href = el.href.replace(/:/g, '-');
   });

   // 4. Tous les éléments avec un href commençant par "#fnref:"
   content.querySelectorAll('[href^="#fnref:"]').forEach(el => {
      el.href = el.href.replace(/:/g, '-');
   });

   // 5. (optionnel) Tous les 'for' dans labels, si jamais (pas typique)
   content.querySelectorAll('[for^="fn:"]').forEach(el => {
      el.htmlFor = el.htmlFor.replace(/:/g, '-');
   });



    inlineNotesHandler({
        content: content,
        input: this.input,
        containerNotes: this.containerNotes,
        type: this.newClass
    });

  }
}



function inlineNotesHandler(params){

  let content = params.content;
  let input = params.input;
  let type = params.type;
  let container = params.containerNotes;
  
  createNotes(content, input, type, container);

   // let noteContainer = content.querySelector(params.containerNotes);
   // if(noteContainer){
   //    noteContainer.remove();
   // }

}


function getBlocks(element){
   return element.querySelectorAll('div,p,blockquote,section,article,h1,h2,h3,h4,h5,h6,figure');
}

// get only inline-level tags
function unwrapBlockChildren(element) {
   let blocks = getBlocks(element);
   
   blocks.forEach(block => {
       block.insertAdjacentHTML("beforebegin", block.innerHTML);
       block.remove();
   });
   let remainingblocks = getBlocks(element);
   if(remainingblocks.length) unwrapBlockChildren(element);
   return element;
}


function createNotes(content, input, type, container){

   let containers = content.querySelectorAll(container);

   containers.forEach(function (container, index) {
      let section = container.parentNode;
   
      let calls = section.querySelectorAll(input);
      calls.forEach( (call, index) => {
    
         let href = call.getAttribute('href');
         let hashIndex = href.indexOf('#');
         let selector = href.slice(hashIndex);

         let note = section.querySelector(selector);
         if (!note) {
            console.warn('Note non trouvée pour', selector);
            return;
         }

         let back = note.querySelector(".footnote-back");
         if(back){
            back.remove();
         }


         
         let inline_note = document.createElement('span');
         inline_note.className = type;
         let num = index + 1;
         inline_note.dataset.counterNote = num;
         inline_note.dataset.chapter = section.id;

         inline_note.innerHTML = unwrapBlockChildren(note).innerHTML;
         call.after(inline_note);
         
         call.parentElement.removeChild(call);


      })

      container.remove();
   });

}