Initial working commit

src/services/settingsService.ts

@@ -0,0 +1,81 @@
+import { prisma } from "@/lib/db";
+
+const DEFAULT_LLM_INSTRUCTIONS_FLASHCARDS = `You are generating study materials in a strict JSON format for import into a
+personal study app. The overall output must be raw JSON with no wrapping
+markdown code fence and no commentary before or after. Markdown formatting
+INSIDE string values (lists, **bold**, tables) is fine, see the formatting
+rule below.
+
+For flashcards, use this shape:
+{ "type": "flashcards", "deckName": "...", "description": "...", "cards": [{"front": "...", "back": "..."}] }
+
+Rules:
+- CRITICAL: Output MUST be valid JSON. All strings must be wrapped in double quotes.
+- Use Markdown formatting (bullet lists, **bold**, tables) inside "back"
+  text wherever it improves clarity. You MUST escape any newlines in the string as \n. Do not use raw newlines.
+- Base everything strictly on the material below. Do not add outside facts.
+
+Material:
+[paste your notes or lecture content here]`;
+
+const DEFAULT_LLM_INSTRUCTIONS_QUIZZES = `You are generating study materials in a strict JSON format for import into a
+personal study app. The overall output must be raw JSON with no wrapping
+markdown code fence and no commentary before or after. Markdown formatting
+INSIDE string values (lists, **bold**, tables) is fine, see the formatting
+rule below.
+
+For quizzes, use this shape:
+{ "type": "quiz", "quizName": "...", "description": "...", "questions": [
+  {"type": "multiple_choice" | "sata", "prompt": "...", "category": "...",
+   "options": [{"text": "...", "correct": true|false}], "rationale": "..."}
+]}
+
+Rules:
+- CRITICAL: Output MUST be valid JSON. All strings must be wrapped in double quotes.
+- "multiple_choice" questions must have exactly one option with correct: true.
+- "sata" questions must have two or more options with correct: true.
+- Every question needs a rationale explaining why the correct option(s) are
+  correct, and briefly why the others are not.
+- Every question must include a "category" field: a short topic tag you
+  choose based on the content (e.g. "thyroid", "limbic system"). Reuse the
+  exact same label across questions on the same topic rather than inventing
+  a new variant each time, and keep the total number of distinct categories
+  small relative to the number of questions.
+- Use Markdown formatting (bullet lists, **bold**, tables) inside
+  "rationale" text wherever it improves clarity. You MUST escape any newlines in the string as \n. Do not use raw newlines.
+- Base everything strictly on the material below. Do not add outside facts.
+
+Material:
+[paste your notes or lecture content here]`;
+
+export async function getLlmInstructions(type: "flashcards" | "quizzes"): Promise<string> {
+  const key = type === "flashcards" ? "llmInstructionsFlashcards" : "llmInstructionsQuizzes";
+  const def = type === "flashcards" ? DEFAULT_LLM_INSTRUCTIONS_FLASHCARDS : DEFAULT_LLM_INSTRUCTIONS_QUIZZES;
+  
+  const setting = await prisma.setting.findUnique({
+    where: { key },
+  });
+  return setting?.value ?? def;
+}
+
+export async function updateLlmInstructions(type: "flashcards" | "quizzes", value: string) {
+  const key = type === "flashcards" ? "llmInstructionsFlashcards" : "llmInstructionsQuizzes";
+  
+  return prisma.setting.upsert({
+    where: { key },
+    update: { value },
+    create: { key, value },
+  });
+}
+
+export async function resetLlmInstructions(type: "flashcards" | "quizzes") {
+  const key = type === "flashcards" ? "llmInstructionsFlashcards" : "llmInstructionsQuizzes";
+  const def = type === "flashcards" ? DEFAULT_LLM_INSTRUCTIONS_FLASHCARDS : DEFAULT_LLM_INSTRUCTIONS_QUIZZES;
+  
+  return prisma.setting.upsert({
+    where: { key },
+    update: { value: def },
+    create: { key, value: def },
+  });
+}
+