import { Router, type Request, type Response } from "express";
import { createClient } from "@supabase/supabase-js";
import { db, usersTable, subscriptionsTable, appConfigTable, blockedEmailsTable } from "@workspace/db";
import { eq } from "drizzle-orm";
import { broadcastToUsers } from "../../lib/sseManager";

const router = Router();

const supabase = createClient(
  process.env.SUPABASE_URL || "",
  process.env.SUPABASE_SERVICE_ROLE_KEY || ""
);

const OWNER_EMAIL = "saresare2555@hotmail.com";

async function requireOwner(req: Request, res: Response): Promise<string | null> {
  const authHeader = req.headers.authorization;
  if (!authHeader?.startsWith("Bearer ")) {
    res.status(401).json({ error: "غير مصرح" });
    return null;
  }

  const token = authHeader.split(" ")[1];
  const { data: { user }, error } = await supabase.auth.getUser(token);

  if (error || !user) {
    res.status(401).json({ error: "فشل التحقق من الهوية" });
    return null;
  }

  const email = user.email?.toLowerCase();
  if (email !== OWNER_EMAIL.toLowerCase()) {
    res.status(403).json({ error: "ممنوع — للمالك فقط" });
    return null;
  }

  return user.id;
}

router.get("/users", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;

  try {
    const { data: { users: authUsers }, error } = await supabase.auth.admin.listUsers();
    if (error) throw error;

    const dbUsers = await db
      .select({
        id: usersTable.id,
        email: usersTable.email,
        ipAddress: usersTable.ipAddress,
        lastSeenAt: usersTable.lastSeenAt,
        isBanned: usersTable.isBanned,
        bannedAt: usersTable.bannedAt
      })
      .from(usersTable);

    const dbSubs = await db.select().from(subscriptionsTable);

    const dbMap = new Map(dbUsers.map((u) => [u.id, u]));
    const subMap = new Map(dbSubs.map((s) => [s.userId, s]));

    const users = authUsers.map((au) => {
      const email = au.email ?? null;
      const sub = subMap.get(au.id);
      const dbUser = dbMap.get(au.id);

      return {
        id: au.id,
        email,
        ipAddress: dbUser?.ipAddress ?? null,
        lastSeenAt: dbUser?.lastSeenAt ? dbUser.lastSeenAt.toISOString() : null,
        isBanned: dbUser?.isBanned ?? false,
        bannedAt: dbUser?.bannedAt ? dbUser.bannedAt.toISOString() : null,
        createdAt: new Date(au.created_at).toISOString(),
        lastSignIn: au.last_sign_in_at ? new Date(au.last_sign_in_at).toISOString() : null,
        subscription: sub
          ? {
              status: sub.status,
              trialEnd: sub.trialEnd?.toISOString() ?? null,
              currentPeriodEnd: sub.currentPeriodEnd?.toISOString() ?? null,
            }
          : null,
        inDb: dbMap.has(au.id),
      };
    });

    res.json({ users });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

router.patch("/subscription/:userId", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;

  const { userId } = req.params;
  const { status, trialEnd, currentPeriodEnd } = req.body as {
    status?: string;
    trialEnd?: string | null;
    currentPeriodEnd?: string | null;
  };

  try {
    await db
      .insert(usersTable)
      .values({ id: userId, isBanned: false })
      .onConflictDoUpdate({ target: usersTable.id, set: { id: userId } });

    const updates: Record<string, unknown> = { updatedAt: new Date() };
    if (status !== undefined) updates.status = status;
    if (trialEnd !== undefined) updates.trialEnd = trialEnd ? new Date(trialEnd) : null;
    if (currentPeriodEnd !== undefined) updates.currentPeriodEnd = currentPeriodEnd ? new Date(currentPeriodEnd) : null;

    const result = await db
      .update(subscriptionsTable)
      .set(updates)
      .where(eq(subscriptionsTable.userId, userId));

    if (result.rowCount === 0) {
      await db.insert(subscriptionsTable).values({
        userId,
        status: status || "trialing",
        trialEnd: trialEnd ? new Date(trialEnd) : new Date(Date.now() + 30 * 24 * 60 * 60 * 1000),
        currentPeriodEnd: currentPeriodEnd ? new Date(currentPeriodEnd) : null,
        updatedAt: new Date(),
      });
    }

    res.json({ success: true });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

router.delete("/paypal-config", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;
  try {
    await db.delete(appConfigTable).where(eq(appConfigTable.key, "paypal_product_id"));
    await db.delete(appConfigTable).where(eq(appConfigTable.key, "paypal_plan_id_v2"));
    await db.delete(appConfigTable).where(eq(appConfigTable.key, "paypal_plan_id"));
    res.json({ success: true, message: "تم مسح إعدادات PayPal" });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

router.patch("/extension-update", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;

  const { enabled, version, message } = req.body as {
    enabled: boolean;
    version?: string;
    message?: string;
  };

  try {
    async function upsert(key: string, value: string) {
      const [existing] = await db.select().from(appConfigTable).where(eq(appConfigTable.key, key));
      if (existing) {
        await db.update(appConfigTable).set({ value }).where(eq(appConfigTable.key, key));
      } else {
        await db.insert(appConfigTable).values({ key, value });
      }
    }

    await upsert("extension_update_available", enabled ? "true" : "false");
    if (version !== undefined) await upsert("extension_update_version", version);
    if (message !== undefined) await upsert("extension_update_message", message);

    res.json({ success: true });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

router.delete("/users/:id", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;

  const targetId = req.params.id;
  if (!targetId) {
    res.status(400).json({ error: "معرف المستخدم مطلوب" });
    return;
  }

  try {
    await db.delete(subscriptionsTable).where(eq(subscriptionsTable.userId, targetId));
    await db.delete(usersTable).where(eq(usersTable.id, targetId));
    
    // 🆕 حذف من Supabase Auth
    await supabase.auth.admin.deleteUser(targetId);
    
    res.json({ success: true, message: "تم حذف المستخدم" });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

router.get("/blocked-emails", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;
  try {
    const rows = await db.select().from(blockedEmailsTable).orderBy(blockedEmailsTable.blockedAt);
    res.json({ blockedEmails: rows });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

router.post("/blocked-emails", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;
  const { email, reason } = req.body as { email: string; reason?: string };
  if (!email || email.trim().length < 3) {
    res.status(400).json({ error: "القيمة غير صالحة" });
    return;
  }
  try {
    const normalized = email.toLowerCase().trim();
    await db.insert(blockedEmailsTable)
      .values({ email: normalized, reason: reason ?? null })
      .onConflictDoUpdate({ target: blockedEmailsTable.email, set: { reason: reason ?? null } });
    res.json({ success: true });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

router.delete("/blocked-emails/:email", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;
  try {
    const email = decodeURIComponent(req.params.email).toLowerCase();
    await db.delete(blockedEmailsTable).where(eq(blockedEmailsTable.email, email));
    res.json({ success: true });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

// ✅ حظر مستخدم - مع Supabase Auth
router.post("/ban/:userId", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;
  const { userId } = req.params;
  try {
    await db
      .insert(usersTable)
      .values({ id: userId, isBanned: true, bannedAt: new Date() })
      .onConflictDoUpdate({ target: usersTable.id, set: { isBanned: true, bannedAt: new Date() } });

    // 🆕 حظر المستخدم في Supabase Auth
    await supabase.auth.admin.updateUserById(userId, {
      ban_duration: "876000h" // 100 سنة
    });

    res.json({ success: true });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

// ✅ رفع الحظر - مع Supabase Auth
router.post("/unban/:userId", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;
  const { userId } = req.params;
  try {
    await db.update(usersTable).set({ isBanned: false, bannedAt: null }).where(eq(usersTable.id, userId));

    // 🆕 رفع الحظر من Supabase Auth
    await supabase.auth.admin.updateUserById(userId, {
      ban_duration: "none"
    });

    res.json({ success: true });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

router.post("/force-signout-banned", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;
  try {
    const banned = await db.select({ id: usersTable.id }).from(usersTable).where(eq(usersTable.isBanned, true));
    const ids = banned.map((u) => u.id);
    const sent = broadcastToUsers(ids, "forceSignOut", { reason: "banned" });
    res.json({ success: true, usersNotified: ids.length, connectionsSent: sent });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

router.post("/cleanup-orphans", async (req: Request, res: Response) => {
  const owner = await requireOwner(req, res);
  if (!owner) return;
  try {
    const dbUsers = await db.select({ id: usersTable.id, email: usersTable.email }).from(usersTable);
    const removed: string[] = [];

    for (const u of dbUsers) {
      const { data, error } = await supabase.auth.admin.getUserById(u.id);
      if (error || !data?.user) {
        await db.delete(usersTable).where(eq(usersTable.id, u.id));
        removed.push(u.email ?? u.id);
      }
    }

    res.json({ removed, count: removed.length });
  } catch (err: any) {
    res.status(500).json({ error: err.message });
  }
});

export default router;