feature: index search

contents/static/suche.html

@@ -1,4 +1,4 @@
-<h1>Fragensuche</h1>
+<h1>Suche</h1>
 
 <style>
   #question-search-results .breadcrumb,
@@ -12,12 +12,12 @@
   <div class="card-body">
     <div class="row g-3 align-items-end">
       <div class="col-12 col-md-6 col-lg-4">
-				<label for="question-search-input" class="form-label">Suche nach einer Fragennummer:</label>
+        <label for="question-search-input" class="form-label">Suche nach Frage-ID oder Begriff:</label>
         <input
           id="question-search-input"
           class="form-control"
           type="text"
-					placeholder="VD102"
+          placeholder="VD102, PTT, ..."
           autocomplete="off"
           disabled
         >
@@ -30,29 +30,17 @@
 <div id="question-search-results" class="d-none"></div>
 
 <script>
-	(() => {
+(() => {
   const searchInput = document.getElementById("question-search-input");
   const errorBox = document.getElementById("question-search-error");
   const resultsBox = document.getElementById("question-search-results");
+
   let questionIndex = {};
+  let indexEntries = [];
 
-		const targetClassByEdition = {
+  const targetClassByEdition = { N: "N", E: "E", NE: "E", A: "A", EA: "A", NEA: "A" };
-			N: "N",
+  const targetColorByClass = { N: "#47ABE8", E: "#FE756C", A: "#3BB583" };
-			E: "E",
-			NE: "E",
-			A: "A",
-			EA: "A",
-			NEA: "A",
-		};
-
-		const targetColorByClass = {
-			N: "#47ABE8",
-			E: "#FE756C",
-			A: "#3BB583",
-		};
-
   const editionOrder = ["N", "NE", "NEA", "E", "EA", "A"];
-
   const editionLabelByEdition = {
     N: "N",
     NE: "N+E",
@@ -71,10 +59,14 @@
       .replaceAll("'", "&#39;");
   }
 
-		function normalizeQuery(value) {
+  function normalizeQuestionQuery(value) {
     return (value || "").trim().toUpperCase();
   }
 
+  function normalizeText(value) {
+    return (value || "").trim().toLocaleLowerCase("de-DE");
+  }
+
   function getTargetClass(edition) {
     return targetClassByEdition[(edition || "").toUpperCase()] || null;
   }
@@ -90,71 +82,38 @@
       const indexA = editionOrder.indexOf(aUpper);
       const indexB = editionOrder.indexOf(bUpper);
 
-				if (indexA === -1 && indexB === -1) {
+      if (indexA === -1 && indexB === -1) return aUpper.localeCompare(bUpper);
-					return aUpper.localeCompare(bUpper);
+      if (indexA === -1) return 1;
-				}
+      if (indexB === -1) return -1;
-				if (indexA === -1) {
-					return 1;
-				}
-				if (indexB === -1) {
-					return -1;
-				}
-
       return indexA - indexB;
     });
   }
 
-		function renderSearchResults() {
+  function renderEditionButtons(editions, sectionIdentRaw, fragmentId) {
-			const query = normalizeQuery(searchInput.value);
+    const sortedEditions = sortEditions(Array.isArray(editions) ? editions : []);
-			const questionIds = Object.keys(questionIndex);
+    return sortedEditions
-
-			resultsBox.classList.remove("d-none");
-
-			if (query.length === 0) {
-				resultsBox.innerHTML =
-					'<div class="alert alert-light border" role="status">Bitte gib eine Frage-ID ein, z. B. <strong>VD102</strong>.</div>';
-				return;
-			}
-
-			const exactMatches = questionIds.filter((questionId) => questionId === query);
-			const startsWithMatches = questionIds.filter((questionId) => questionId.startsWith(query) && questionId !== query);
-			const includesMatches = questionIds.filter(
-				(questionId) => questionId.includes(query) && !questionId.startsWith(query)
-			);
-
-			const matches = [...exactMatches, ...startsWithMatches, ...includesMatches];
-
-			if (matches.length === 0) {
-				resultsBox.innerHTML =
-					'<div class="alert alert-warning" role="status">Keine passende Frage gefunden.</div>';
-				return;
-			}
-
-			const cards = matches.map((questionId) => {
-				const entry = questionIndex[questionId] || {};
-				const sectionIdentRaw = entry.section || "";
-				const chapterTitle = escapeHtml(entry.chapter_title || "Unbekanntes Kapitel");
-				const sectionTitle = escapeHtml(entry.section_title || entry.section || "Unbekannte Sektion");
-				const hasSolution = Boolean(entry.has_solution);
-				const editions = sortEditions(Array.isArray(entry.editions) ? entry.editions : []);
-				const editionLinks = editions
       .map((edition) => {
         const editionSafe = escapeHtml(edition);
         const editionLabel = escapeHtml(getEditionLabel(edition));
         const targetClass = getTargetClass(edition);
         const targetColor = targetColorByClass[targetClass] || "#6c757d";
         const targetTitle = targetClass ? `Zielklasse ${targetClass}` : "Zielklasse unbekannt";
-						const href = `${encodeURIComponent(edition)}_${encodeURIComponent(sectionIdentRaw)}.html#${encodeURIComponent(questionId)}`;
+        const href = `${encodeURIComponent(edition)}_${encodeURIComponent(sectionIdentRaw)}.html#${encodeURIComponent(fragmentId)}`;
         return `<a class="btn btn-sm text-white text-decoration-none d-inline-flex align-items-center gap-2 px-3 py-2 text-nowrap" style="background-color: ${targetColor}; border-color: ${targetColor};" href="${href}" title="${escapeHtml(targetTitle)}" aria-label="${editionSafe}: ${editionLabel}"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" fill="currentColor" aria-hidden="true" focusable="false" style="width: 0.95rem; height: 0.95rem;"><path d="M96 0C43 0 0 43 0 96L0 416c0 53 43 96 96 96l288 0 32 0c17.7 0 32-14.3 32-32s-14.3-32-32-32l0-64c17.7 0 32-14.3 32-32l0-320c0-17.7-14.3-32-32-32L384 0 96 0zm0 384l256 0 0 64L96 448c-17.7 0-32-14.3-32-32s14.3-32 32-32zm32-240c0-8.8 7.2-16 16-16l192 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-192 0c-8.8 0-16-7.2-16-16zm16 48l192 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-192 0c-8.8 0-16-7.2-16-16s7.2-16 16-16z"></path></svg>${editionLabel}</a>`;
       })
       .join("");
+  }
+
+  function renderQuestionCards(matches) {
+    return matches.map((questionId) => {
+      const entry = questionIndex[questionId] || {};
+      const sectionIdentRaw = entry.section || "";
+      const chapterTitle = escapeHtml(entry.chapter_title || "Unbekanntes Kapitel");
+      const sectionTitle = escapeHtml(entry.section_title || entry.section || "Unbekannte Sektion");
+      const hasSolution = Boolean(entry.has_solution);
+      const editionLinks = renderEditionButtons(entry.editions, sectionIdentRaw, questionId);
       const solutionLink = hasSolution
-					? `<a class="btn btn-sm text-dark d-inline-flex align-items-center gap-2 px-3 py-2 text-nowrap" style="background-color: #ffc107; border-color: #ffc107;" href="${encodeURIComponent(questionId)}.html" aria-label="Lösungsweg zu ${escapeHtml(questionId)}">
+        ? `<a class="btn btn-sm text-dark d-inline-flex align-items-center gap-2 px-3 py-2 text-nowrap" style="background-color: #ffc107; border-color: #ffc107;" href="${encodeURIComponent(questionId)}.html" aria-label="Loesungsweg zu ${escapeHtml(questionId)}"><svg class="solution-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 640" fill="currentColor" aria-hidden="true" focusable="false" style="width: 1rem; height: 1rem;"><path d="M420.9 448C428.2 425.7 442.8 405.5 459.3 388.1C492 353.7 512 307.2 512 256C512 150 426 64 320 64C214 64 128 150 128 256C128 307.2 148 353.7 180.7 388.1C197.2 405.5 211.9 425.7 219.1 448L420.8 448zM416 496L224 496L224 512C224 556.2 259.8 592 304 592L336 592C380.2 592 416 556.2 416 512L416 496zM312 176C272.2 176 240 208.2 240 248C240 261.3 229.3 272 216 272C202.7 272 192 261.3 192 248C192 181.7 245.7 128 312 128C325.3 128 336 138.7 336 152C336 165.3 325.3 176 312 176z"></path></svg>Loesungsweg</a>`
-						<svg class="solution-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 640 640" fill="currentColor" aria-hidden="true" focusable="false" style="width: 1rem; height: 1rem;">
-							<path d="M420.9 448C428.2 425.7 442.8 405.5 459.3 388.1C492 353.7 512 307.2 512 256C512 150 426 64 320 64C214 64 128 150 128 256C128 307.2 148 353.7 180.7 388.1C197.2 405.5 211.9 425.7 219.1 448L420.8 448zM416 496L224 496L224 512C224 556.2 259.8 592 304 592L336 592C380.2 592 416 556.2 416 512L416 496zM312 176C272.2 176 240 208.2 240 248C240 261.3 229.3 272 216 272C202.7 272 192 261.3 192 248C192 181.7 245.7 128 312 128C325.3 128 336 138.7 336 152C336 165.3 325.3 176 312 176z"></path>
-						</svg>
-						Lösungsweg
-					</a>`
         : "";
 
       return `
@@ -177,32 +136,129 @@
         </div>
       `;
     });
+  }
+
+  function renderIndexCards(matches) {
+    return matches.map((entry) => {
+      const term = escapeHtml(entry.term || "");
+      const subterm = entry.subterm ? escapeHtml(entry.subterm) : "";
+      const anchorId = entry.anchor_id || "";
+      const sectionIdentRaw = entry.section || "";
+      const chapterTitle = escapeHtml(entry.chapter_title || "Unbekanntes Kapitel");
+      const sectionTitle = escapeHtml(entry.section_title || entry.section || "Unbekannte Sektion");
+      const editionLinks = renderEditionButtons(entry.editions, sectionIdentRaw, anchorId);
+
+      return `
+        <div class="card mb-3">
+          <div class="card-header d-flex flex-nowrap align-items-center gap-2 overflow-auto">
+            <div class="fw-semibold">Index: ${term}${subterm ? ` / ${subterm}` : ""}</div>
+            <nav aria-label="breadcrumb" class="mb-0 d-flex align-items-center text-nowrap">
+              <ol class="breadcrumb mb-0 align-items-center flex-nowrap">
+                <li class="breadcrumb-item">${chapterTitle}</li>
+                <li class="breadcrumb-item">${sectionTitle}</li>
+              </ol>
+            </nav>
+          </div>
+          <div class="card-body py-3">
+            <div class="d-flex flex-wrap align-items-center gap-2">
+              ${editionLinks || '<span class="badge text-bg-secondary">-</span>'}
+            </div>
+          </div>
+        </div>
+      `;
+    });
+  }
+
+  function findQuestionMatches(questionQuery) {
+    const questionIds = Object.keys(questionIndex);
+    const exactMatches = questionIds.filter((questionId) => questionId === questionQuery);
+    const startsWithMatches = questionIds.filter((questionId) => questionId.startsWith(questionQuery) && questionId !== questionQuery);
+    const includesMatches = questionIds.filter((questionId) => questionId.includes(questionQuery) && !questionId.startsWith(questionQuery));
+    return [...exactMatches, ...startsWithMatches, ...includesMatches];
+  }
+
+  function findIndexMatches(textQuery) {
+    const exactMatches = [];
+    const startsWithMatches = [];
+    const includesMatches = [];
+
+    for (const entry of indexEntries) {
+      const term = normalizeText(entry.term);
+      const subterm = normalizeText(entry.subterm);
+      const combined = subterm ? `${term} ${subterm}` : term;
+
+      if (term === textQuery || subterm === textQuery || combined === textQuery) {
+        exactMatches.push(entry);
+        continue;
+      }
+
+      if (term.startsWith(textQuery) || subterm.startsWith(textQuery) || combined.startsWith(textQuery)) {
+        startsWithMatches.push(entry);
+        continue;
+      }
+
+      if (term.includes(textQuery) || subterm.includes(textQuery) || combined.includes(textQuery)) {
+        includesMatches.push(entry);
+      }
+    }
+
+    return [...exactMatches, ...startsWithMatches, ...includesMatches];
+  }
+
+  function renderSearchResults() {
+    const rawQuery = (searchInput.value || "").trim();
+    const questionQuery = normalizeQuestionQuery(rawQuery);
+    const textQuery = normalizeText(rawQuery);
+
+    resultsBox.classList.remove("d-none");
+
+    if (rawQuery.length === 0) {
+      resultsBox.innerHTML = '<div class="alert alert-light border" role="status">Bitte gib eine Frage-ID oder einen Begriff ein, z. B. <strong>VD102</strong> oder <strong>PTT</strong>.</div>';
+      return;
+    }
+
+    const questionMatches = findQuestionMatches(questionQuery);
+    const indexMatches = findIndexMatches(textQuery);
+
+    if (questionMatches.length === 0 && indexMatches.length === 0) {
+      resultsBox.innerHTML = '<div class="alert alert-warning" role="status">Keine passenden Fragen oder Begriffe gefunden.</div>';
+      return;
+    }
+
+    const questionCards = renderQuestionCards(questionMatches);
+    const indexCards = renderIndexCards(indexMatches);
+    const total = questionCards.length + indexCards.length;
 
     resultsBox.innerHTML = `
-				<p class="text-muted mb-3">${cards.length} Treffer</p>
+      <p class="text-muted mb-3">${total} Treffer (${questionCards.length} Fragen, ${indexCards.length} Begriffe)</p>
-				${cards.join("")}
+      ${questionCards.join("")}
+      ${indexCards.join("")}
     `;
   }
 
-		async function loadQuestionIndex() {
+  async function loadSearchIndices() {
     try {
-				const response = await fetch("/assets/question_index.json", {
+      const [questionResponse, indexResponse] = await Promise.all([
+        fetch("/assets/question_index.json", {
           cache: "no-cache",
-					headers: {
+          headers: { Accept: "application/json" },
-						Accept: "application/json",
+        }),
-					},
+        fetch("/assets/index.json", {
-				});
+          cache: "no-cache",
+          headers: { Accept: "application/json" },
+        }),
+      ]);
 
-				if (!response.ok) {
+      if (!questionResponse.ok) throw new Error("question_index.json: HTTP " + questionResponse.status);
-					throw new Error("HTTP " + response.status);
+      if (!indexResponse.ok) throw new Error("index.json: HTTP " + indexResponse.status);
-				}
 
-				const indexData = await response.json();
+      const questionData = await questionResponse.json();
+      const indexData = await indexResponse.json();
 
-				questionIndex = indexData || {};
+      questionIndex = questionData || {};
+      indexEntries = Array.isArray(indexData) ? indexData : [];
 
       searchInput.disabled = false;
-
       searchInput.addEventListener("input", renderSearchResults);
       searchInput.addEventListener("keydown", (event) => {
         if (event.key === "Enter") {
@@ -214,12 +270,11 @@
       renderSearchResults();
     } catch (error) {
       errorBox.classList.remove("d-none");
-				errorBox.textContent =
+      errorBox.textContent = "Suchindex konnte nicht geladen werden: " + error.message;
-					"Suchindex konnte nicht geladen werden: " + error.message;
+      console.error("Failed to load search indices", error);
-				console.error("Failed to load question_index.json", error);
     }
   }
 
-		loadQuestionIndex();
+  loadSearchIndices();
-	})();
+})();
 </script>