import express, { Request, Response } from "express";
import { storage } from "../storage";

const router = express.Router();

// GET /api/ai/settings
router.get("/settings", async (req: Request, res: Response): Promise<any> => {
  try {
    const userId = req.user?.id;
    if (!userId) return res.status(401).json({ message: "Unauthorized" });

    const settings = await storage.getAiSettings(userId);
    if (!settings) return res.status(200).json(null);

    return res.status(200).json({ id: settings.id, apiKey: settings.apiKey });
  } catch (err) {
    return res.status(500).json({ error: "Failed to fetch AI settings", details: String(err) });
  }
});

// PUT /api/ai/settings
router.put("/settings", async (req: Request, res: Response): Promise<any> => {
  try {
    const userId = req.user?.id;
    if (!userId) return res.status(401).json({ message: "Unauthorized" });

    const { apiKey } = req.body;
    if (!apiKey?.trim()) {
      return res.status(400).json({ message: "apiKey is required" });
    }

    const settings = await storage.upsertAiSettings(userId, apiKey.trim());
    return res.status(200).json({ id: settings.id, apiKey: settings.apiKey });
  } catch (err) {
    return res.status(500).json({ error: "Failed to save AI settings", details: String(err) });
  }
});

// GET /api/ai/chat-templates
router.get("/chat-templates", async (req: Request, res: Response): Promise<any> => {
  try {
    const userId = req.user?.id;
    if (!userId) return res.status(401).json({ message: "Unauthorized" });
    const templates = await storage.getAiChatTemplates(userId);
    return res.status(200).json(templates);
  } catch (err) {
    return res.status(500).json({ error: "Failed to fetch AI chat templates", details: String(err) });
  }
});

// PUT /api/ai/chat-templates
router.put("/chat-templates", async (req: Request, res: Response): Promise<any> => {
  try {
    const userId = req.user?.id;
    if (!userId) return res.status(401).json({ message: "Unauthorized" });
    const { reminderGreeting, newPatientGreeting, generalFallback } = req.body;
    await storage.saveAiChatTemplates(userId, { reminderGreeting, newPatientGreeting, generalFallback });
    const updated = await storage.getAiChatTemplates(userId);
    return res.status(200).json(updated);
  } catch (err) {
    return res.status(500).json({ error: "Failed to save AI chat templates", details: String(err) });
  }
});

export default router;