/* Curriculumwiki: doorzoekbare volwassenweergave van CURRICULUM_PO_2026. */
"use strict";

(function(){
  const root=document.getElementById("curriculumWiki");
  let selectedArea="all";
  let query="";

  const node=(tag,cls,text)=>{
    const el=document.createElement(tag);
    if(cls)el.className=cls;
    if(text!=null)el.textContent=text;
    return el;
  };
  const normal=value=>String(value||"").toLocaleLowerCase("nl-NL");
  const coverageKey=value=>value==="partial"?"wikiCoveragePartial":value==="support"?"wikiCoverageSupport":"wikiCoverageOpen";
  const widgetName=id=>{
    const translated=T("wg_"+id);
    return translated==="wg_"+id?id:translated;
  };
  const goalHaystack=(area,goal)=>normal([
    area.title,area.description,goal.id,goal.domain,goal.summary,
    ...goal.parts,...goal.widgets, ...goal.widgets.map(widgetName)
  ].join(" "));

  function wikiLink(label,href){
    const link=node("a","wiki-link",label);
    link.href=href;
    link.target="_blank";
    link.rel="noopener noreferrer";
    return link;
  }

  function drawGoals(holder,filters){
    holder.replaceChildren();
    const needle=normal(query.trim());
    let shown=0;
    CURRICULUM_PO_2026.areas.forEach(area=>{
      if(selectedArea!=="all"&&selectedArea!==area.id)return;
      const areaHit=needle&&normal(area.title+" "+area.description).includes(needle);
      const goals=area.goals.filter(goal=>!needle||areaHit||goalHaystack(area,goal).includes(needle));
      if(!goals.length)return;
      shown+=goals.length;

      const section=node("section","wiki-area");
      section.id="wiki-area-"+area.id;
      const areaHead=node("div","wiki-area-head");
      const title=node("h3");
      title.appendChild(node("span","wiki-area-icon",area.icon));
      title.appendChild(document.createTextNode(area.title));
      areaHead.appendChild(title);
      areaHead.appendChild(node("span","wiki-range",T("wikiGoalsRange").replace("{range}",area.goalsRange)));
      section.appendChild(areaHead);
      section.appendChild(node("p","wiki-area-intro",area.description));

      const grid=node("div","wiki-grid");
      goals.forEach(goal=>{
        const card=node("article","wiki-goal");
        card.id="wiki-goal-"+goal.id;
        const head=node("div","wiki-goal-head");
        head.appendChild(node("span","wiki-goal-id",T("wikiGoal")+" "+goal.id));
        head.appendChild(node("span","wiki-domain",goal.domain));
        card.appendChild(head);
        card.appendChild(node("p","wiki-summary",goal.summary));
        const partTitle=node("h4",null,T("wikiParts"));
        card.appendChild(partTitle);
        const parts=node("ul","wiki-parts");
        goal.parts.forEach((part,index)=>{
          const code=String(goal.id)+String.fromCharCode(65+index);
          const item=node("li");
          item.appendChild(node("strong",null,code));
          item.appendChild(document.createTextNode(" · "+part));
          parts.appendChild(item);
        });
        card.appendChild(parts);
        const coverage=node("div","wiki-coverage-row");
        coverage.appendChild(node("span","wiki-coverage wiki-coverage-"+goal.coverage,T(coverageKey(goal.coverage))));
        if(goal.widgets.length){
          const widgets=node("div","wiki-widgets");
          widgets.appendChild(node("span","wiki-widgets-label",T("wikiWidgets")+":"));
          goal.widgets.forEach(id=>widgets.appendChild(node("span","wiki-widget",widgetName(id))));
          coverage.appendChild(widgets);
        }
        card.appendChild(coverage);
        grid.appendChild(card);
      });
      section.appendChild(grid);
      const pageUrl=CURRICULUM_PO_2026.source+"#page="+area.page;
      section.appendChild(wikiLink(T("wikiOfficialArea").replace("{area}",area.title),pageUrl));
      holder.appendChild(section);
    });
    if(!shown)holder.appendChild(node("div","wiki-empty",T("wikiNoResults")));
    filters.querySelectorAll("button").forEach(button=>button.setAttribute("aria-pressed",String(button.dataset.area===selectedArea)));
  }

  function renderCurriculumWiki(payload){
    if(payload&&payload.area){selectedArea=payload.area;query="";}
    root.replaceChildren();
    const header=node("div","wiki-hero");
    const heroText=node("div","wiki-hero-text");
    heroText.appendChild(node("div","wiki-kicker",T("wikiKicker")));
    heroText.appendChild(node("h2",null,T("wikiTitle")));
    heroText.appendChild(node("p",null,T("wikiIntro")));
    header.appendChild(heroText);
    const facts=node("div","wiki-facts");
    facts.appendChild(node("strong",null,"9"));
    facts.appendChild(node("span",null,T("wikiAreas")));
    facts.appendChild(node("strong",null,"40"));
    facts.appendChild(node("span",null,T("wikiGoals")));
    header.appendChild(facts);
    root.appendChild(header);

    const status=node("aside","wiki-status");
    status.appendChild(node("strong",null,T("wikiStatusTitle")));
    status.appendChild(node("span",null,T("wikiStatusText")));
    status.appendChild(wikiLink(T("wikiOfficialSource"),CURRICULUM_PO_2026.source));
    root.appendChild(status);

    const tule=node("details","wiki-tule");
    const tuleSummary=node("summary",null,T("wikiTuleTitle"));
    tule.appendChild(tuleSummary);
    tule.appendChild(node("p",null,T("wikiTuleText")));
    const sourceLinks=node("div","wiki-source-links");
    sourceLinks.appendChild(wikiLink(T("wikiTuleSource"),CURRICULUM_PO_2026.tule));
    sourceLinks.appendChild(wikiLink(T("wikiProgressionsSource"),CURRICULUM_PO_2026.progressions));
    tule.appendChild(sourceLinks);
    root.appendChild(tule);

    const profiles=node("details","wiki-tule wiki-year-profiles");
    profiles.appendChild(node("summary",null,T("wikiYearProfiles")));
    profiles.appendChild(node("p",null,T("wikiYearProfilesText")));
    const profileGrid=node("div","wiki-profile-grid");
    [["taal","📖"],["rekenen","🔢"],["creatief","🎨"]].forEach(([subject,icon])=>{
      const column=node("section","wiki-profile-column");
      const subjectKey={taal:"parentLevelTaal",rekenen:"parentLevelRekenen",creatief:"parentLevelCreative"}[subject];
      column.appendChild(node("h3",null,icon+" "+T(subjectKey)));
      LEARNING_YEAR_PROFILES[subject].slice(1).forEach((profile,index)=>{
        const row=node("article","wiki-profile-row");
        row.appendChild(node("strong",null,T("wikiYear").replace("{n}",index+1)));
        row.appendChild(node("span","wiki-profile-title",profile.title));
        row.appendChild(node("small",null,T("wikiProfileGoals")+": "+profile.goals.join(" · ")));
        column.appendChild(row);
      });
      profileGrid.appendChild(column);
    });
    profiles.appendChild(profileGrid);
    root.appendChild(profiles);

    if(LANG==="en")root.appendChild(node("p","wiki-language-note",T("wikiLanguageNote")));

    const searchWrap=node("div","wiki-search");
    const label=node("label",null,T("wikiSearchLabel"));
    label.htmlFor="wikiGoalSearch";
    const input=node("input");
    input.type="search";
    input.id="wikiGoalSearch";
    input.placeholder=T("wikiSearchPlaceholder");
    input.autocomplete="off";
    input.value=query;
    searchWrap.appendChild(label);
    searchWrap.appendChild(input);
    root.appendChild(searchWrap);

    const filters=node("div","wiki-filters");
    filters.setAttribute("aria-label",T("wikiAreaFilter"));
    const all=node("button",null,T("wikiAllAreas"));
    all.type="button";
    all.dataset.area="all";
    filters.appendChild(all);
    CURRICULUM_PO_2026.areas.forEach(area=>{
      const button=node("button",null,area.icon+" "+area.title);
      button.type="button";
      button.dataset.area=area.id;
      filters.appendChild(button);
    });
    root.appendChild(filters);

    const holder=node("div","wiki-results");
    root.appendChild(holder);
    filters.addEventListener("click",event=>{
      const button=event.target.closest("button[data-area]");
      if(!button)return;
      selectedArea=button.dataset.area;
      drawGoals(holder,filters);
      holder.scrollIntoView({block:"nearest"});
    });
    input.addEventListener("input",()=>{
      query=input.value;
      drawGoals(holder,filters);
    });
    drawGoals(holder,filters);
    if(payload&&payload.goal)requestAnimationFrame(()=>{
      const target=document.getElementById("wiki-goal-"+payload.goal);
      if(target){target.classList.add("wiki-goal-focus");target.scrollIntoView({block:"center"});}
    });

    const disclaimer=node("footer","wiki-disclaimer");
    disclaimer.appendChild(node("strong",null,T("wikiCarefulTitle")));
    disclaimer.appendChild(document.createTextNode(" "+T("wikiCarefulText")));
    root.appendChild(disclaimer);
  }
  window.renderCurriculumWiki=renderCurriculumWiki;

  registerSettingsSection({
    id:"curriculum",icon:"📚",group:"personal",order:3,
    label:()=>T("wikiTitle"),sub:()=>T("wikiSub"),
    visible:()=>!!currentUser&&can("curriculum.view"),
    activate(payload){showSettingsDom("curriculum");renderCurriculumWiki(payload);},
    keywords:()=>[
      T("wikiTitle"),T("wikiSub"),T("wikiYearProfiles"),"SLO","kerndoelen","curriculum","leerlijnen","TULE",
      ...CURRICULUM_PO_2026.areas.flatMap(area=>[area.title,area.description])
    ],
    searchItems:needle=>{
      const q=normal(needle);
      return CURRICULUM_PO_2026.areas.flatMap(area=>{
        const areaMatch=normal(area.title+" "+area.description).includes(q);
        const goalMatch=area.goals.some(goal=>goalHaystack(area,goal).includes(q));
        if(!areaMatch&&!goalMatch)return[];
        return[{icon:area.icon,label:area.title,sub:T("wikiGoal")+" "+area.goalsRange,
          go:()=>goSettingsSection("curriculum",{area:area.id})}];
      });
    }
  });

})();