import { NextRequest, NextResponse } from "next/server";
import { getPool } from "@/lib/database";

export async function GET(request: NextRequest) {
  try {
    // Get user ID from auth token or session
    const userId = request.headers.get("user-id");

    if (!userId) {
      return NextResponse.json(
        { error: "User not authenticated" },
        { status: 401 }
      );
    }

    const pool = getPool();
    const client = await pool.connect();

    try {
      // Try to get active subscription first, otherwise get the most recent one
      const result = await client.query(
        `SELECT id, tier, status, storage_limit_gb, current_usage_gb, created_at, updated_at
         FROM subscriptions 
         WHERE user_id = $1 
         ORDER BY 
           CASE WHEN status = 'ACTIVE' THEN 0 ELSE 1 END,
           created_at DESC 
         LIMIT 1`,
        [userId]
      );

      console.log(
        `Found ${result.rows.length} subscriptions for user ${userId}`
      );

      if (result.rows.length === 0) {
        console.log("No subscriptions found");
        return NextResponse.json({ subscription: null });
      }

      console.log("Returning subscription:", result.rows[0]);
      return NextResponse.json({ subscription: result.rows[0] });
    } finally {
      client.release();
    }
  } catch (error) {
    console.error("Error fetching subscription:", error);
    return NextResponse.json(
      { error: "Failed to fetch subscription" },
      { status: 500 }
    );
  }
}