import { query, queryOne, run } from "@/lib/db";
import { cookies } from "next/headers";
import { verifyToken } from "@/app/api/auth/[...nextauth]/route";

export const dynamic = "force-dynamic"; // Disable caching

// Helper function to ensure the hunt_timer table exists
async function ensureTableExists() {
  try {
    // Directly try to create the table (IF NOT EXISTS prevents errors if it already exists)
    await run(`
      CREATE TABLE IF NOT EXISTS hunt_timer (
        id INTEGER PRIMARY KEY AUTOINCREMENT,
        active INTEGER NOT NULL DEFAULT 0,
        start_time TEXT NOT NULL,
        end_time TEXT,
        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
      )
    `);

    // Verify the table exists by inserting a dummy record and then deleting it
    // This is a more reliable way to test if the table is usable
    const tempTimestamp = new Date().toISOString();
    const tempId = await run(
      "INSERT INTO hunt_timer (active, start_time) VALUES (0, ?)",
      [tempTimestamp]
    );

    if (tempId) {
      // Delete the test record
      await run("DELETE FROM hunt_timer WHERE id = ?", [tempId]);
    }

    console.log("hunt_timer table verified successfully");
    return true;
  } catch (error) {
    console.error("Error ensuring hunt_timer table:", error);

    // Try with an alternative approach if the first method failed
    try {
      console.log("Attempting alternative table creation method...");
      // Execute the CREATE TABLE statement directly
      await run(`
        DROP TABLE IF EXISTS hunt_timer;
        CREATE TABLE hunt_timer (
          id INTEGER PRIMARY KEY AUTOINCREMENT,
          active INTEGER NOT NULL DEFAULT 0,
          start_time TEXT NOT NULL,
          end_time TEXT,
          created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
        )
      `);
      console.log("hunt_timer table created with alternative method");
      return true;
    } catch (createError) {
      console.error("Failed to create hunt_timer table:", createError);
      return false;
    }
  }
}

// Helper function to ensure settings table exists and manage hunt active status
async function ensureSettingsTableExists() {
  try {
    // Create settings table if it doesn't exist
    await run(`
      CREATE TABLE IF NOT EXISTS settings (
        key TEXT PRIMARY KEY,
        value TEXT NOT NULL
      )
    `);

    // Check if hunt_active setting exists
    const huntActiveSetting = await queryOne(
      "SELECT value FROM settings WHERE key = 'hunt_active'"
    );

    // If not, create it with default value "false"
    if (!huntActiveSetting) {
      await run("INSERT OR IGNORE INTO settings (key, value) VALUES (?, ?)", [
        "hunt_active",
        "false",
      ]);
    }

    return true;
  } catch (error) {
    console.error("Error ensuring settings table:", error);
    return false;
  }
}

// Helper function to update hunt active status
async function updateHuntActiveStatus(isActive) {
  try {
    await ensureSettingsTableExists();

    await run("INSERT OR REPLACE INTO settings (key, value) VALUES (?, ?)", [
      "hunt_active",
      isActive ? "true" : "false",
    ]);

    console.log("Hunt active status updated:", isActive);
    return true;
  } catch (error) {
    console.error("Failed to update hunt active status:", error);
    return false;
  }
}

// GET endpoint to get current timer status
export async function GET(request) {
  try {
    // Verify the user is authenticated
    const cookieStore = await cookies(); // Add await here
    const sessionToken = cookieStore.get("next-auth.session-token")?.value;

    if (!sessionToken) {
      return Response.json({ error: "Unauthorized" }, { status: 401 });
    }

    const userData = verifyToken(sessionToken);
    if (!userData) {
      return Response.json({ error: "Invalid session" }, { status: 401 });
    }

    // Ensure both tables exist
    const tableExists = await ensureTableExists();
    await ensureSettingsTableExists();

    if (!tableExists) {
      return Response.json(
        { error: "Database table not found" },
        { status: 500 }
      );
    }

    // Get the current hunt timer status
    const timerStatus = await queryOne(
      "SELECT active, start_time, end_time FROM hunt_timer ORDER BY id DESC LIMIT 1"
    );

    // Get the hunt active status from settings
    const huntActiveSetting = await queryOne(
      "SELECT value FROM settings WHERE key = 'hunt_active'"
    );

    const huntActive = huntActiveSetting
      ? huntActiveSetting.value === "true"
      : false;

    if (!timerStatus) {
      return Response.json({
        active: huntActive, // Use settings value if timer not found
        startTime: null,
        endTime: null,
      });
    }

    return Response.json({
      active: huntActive, // Return settings value for consistency
      timerActive: !!timerStatus.active, // Also return timer status for admin panel
      startTime: timerStatus.start_time,
      endTime: timerStatus.end_time,
    });
  } catch (error) {
    console.error("Error getting timer status:", error);
    return Response.json(
      { error: "Failed to get timer status" },
      { status: 500 }
    );
  }
}

// POST endpoint to start/stop timer
export async function POST(request) {
  try {
    // Verify the user is authenticated and is an admin
    const cookieStore = await cookies(); // Add await here
    const sessionToken = cookieStore.get("next-auth.session-token")?.value;

    if (!sessionToken) {
      return Response.json({ error: "Unauthorized" }, { status: 401 });
    }

    const userData = verifyToken(sessionToken);
    if (!userData) {
      return Response.json({ error: "Invalid session" }, { status: 401 });
    }

    console.log("User role:", userData.role);

    // Check if user is admin (more lenient check)
    if (
      !(
        userData.role === "admin" ||
        userData.isAdmin === true ||
        userData.is_admin === 1
      )
    ) {
      return Response.json(
        { error: "Unauthorized: Admin access required" },
        { status: 403 }
      );
    }

    // Create required tables if they don't exist
    const tableExists = await ensureTableExists();
    await ensureSettingsTableExists();

    if (!tableExists) {
      return Response.json(
        { error: "Failed to create hunt_timer database table" },
        { status: 500 }
      );
    }

    const body = await request.json();
    const { action, endTime } = body;

    console.log("Timer action:", action, "End time:", endTime);

    if (action === "start") {
      try {
        // Get current time in ISO format
        const startTime = new Date().toISOString();

        // First, deactivate any existing timers
        await run("UPDATE hunt_timer SET active = 0 WHERE active = 1");

        // Insert new timer record
        await run(
          "INSERT INTO hunt_timer (active, start_time, end_time) VALUES (?, ?, ?)",
          [1, startTime, endTime || null]
        );

        // Update hunt active status to true
        await updateHuntActiveStatus(true);

        return Response.json({
          success: true,
          message: "Timer started successfully",
          startTime,
          endTime: endTime || null,
        });
      } catch (dbError) {
        console.error("Database error starting timer:", dbError);
        return Response.json(
          { error: "Database error: " + dbError.message },
          { status: 500 }
        );
      }
    } else if (action === "stop") {
      try {
        // Update the most recent timer to inactive
        await run(
          "UPDATE hunt_timer SET active = 0, end_time = ? WHERE active = 1",
          [new Date().toISOString()]
        );

        // Update hunt active status to false
        await updateHuntActiveStatus(false);

        return Response.json({
          success: true,
          message: "Timer stopped successfully",
        });
      } catch (dbError) {
        console.error("Database error stopping timer:", dbError);
        return Response.json(
          { error: "Database error: " + dbError.message },
          { status: 500 }
        );
      }
    } else {
      return Response.json(
        { error: "Invalid action. Use 'start' or 'stop'." },
        { status: 400 }
      );
    }
  } catch (error) {
    console.error("Error managing timer:", error);
    return Response.json(
      {
        error: "Failed to manage timer: " + error.message,
      },
      { status: 500 }
    );
  }
}