import type { Express } from "express";
import { createServer, type Server } from "http";
import { storage } from "./storage";
import { z } from "zod";

export async function registerRoutes(app: Express): Promise<Server> {
  // Get videos with pagination and filtering
  app.get("/api/videos", async (req, res) => {
    try {
      const limit = parseInt(req.query.limit as string) || 20;
      const offset = parseInt(req.query.offset as string) || 0;
      const search = req.query.search as string;
      const category = req.query.category as string;

      const videos = await storage.getVideos(limit, offset, search, category);
      const total = await storage.getVideoCount(search, category);

      res.json({
        videos,
        total,
        hasMore: offset + limit < total
      });
    } catch (error) {
      res.status(500).json({ message: "Failed to fetch videos" });
    }
  });

  // Get single video by ID
  app.get("/api/videos/:id", async (req, res) => {
    try {
      const video = await storage.getVideo(req.params.id);
      if (!video) {
        return res.status(404).json({ message: "Video not found" });
      }
      res.json(video);
    } catch (error) {
      res.status(500).json({ message: "Failed to fetch video" });
    }
  });

  // Update video views
  app.post("/api/videos/:id/view", async (req, res) => {
    try {
      await storage.updateVideoViews(req.params.id);
      res.json({ success: true });
    } catch (error) {
      res.status(500).json({ message: "Failed to update views" });
    }
  });

  // Get video categories
  app.get("/api/categories", async (req, res) => {
    try {
      const videos = await storage.getVideos(1000);
      const categories = Array.from(new Set(videos.map(v => v.category).filter(Boolean)));
      res.json(categories);
    } catch (error) {
      res.status(500).json({ message: "Failed to fetch categories" });
    }
  });

  const httpServer = createServer(app);
  return httpServer;
}