/**
 * Security Tests for User Management Feature
 *
 * Tests authorization, input validation, SQL injection prevention,
 * XSS protection, and other security concerns
 */

import { prisma } from "@/lib/db";
import bcrypt from "bcryptjs";

// Requires live database - skip in unit test environment
describe.skip("Authorization Security Tests", () => {
  let customerUser: any;
  let staffUser: any;
  let adminUser: any;

  beforeAll(async () => {
    customerUser = await prisma.users.create({
      data: {
        email: "sec-customer@example.com",
        name: "Security Test Customer",
        role: "CUSTOMER",
        password: await bcrypt.hash("Pass123!", 12),
      },
    });

    staffUser = await prisma.users.create({
      data: {
        email: "sec-staff@mawidi.com",
        name: "Security Test Staff",
        username: "sec-staff",
        role: "STAFF",
        password: await bcrypt.hash("Pass123!", 12),
      },
    });

    adminUser = await prisma.users.create({
      data: {
        email: "sec-admin@mawidi.com",
        name: "Security Test Admin",
        username: "sec-admin",
        role: "ADMIN",
        password: await bcrypt.hash("Pass123!", 12),
      },
    });
  });

  afterAll(async () => {
    await prisma.users.deleteMany({
      where: {
        email: {
          in: [
            "sec-customer@example.com",
            "sec-staff@mawidi.com",
            "sec-admin@mawidi.com",
          ],
        },
      },
    });
  });

  test("should never return password field in API responses", async () => {
    const user = await prisma.users.findUnique({
      where: { id: customerUser.id },
    });

    // Simulate removing password before API response
    const { password, ...userWithoutPassword } = user!;

    expect(userWithoutPassword.password).toBeUndefined();
    expect(password).toBeDefined(); // Original has it
    expect(userWithoutPassword.email).toBe(customerUser.email);
  });

  test("should prevent staff from suspending accounts", async () => {
    // Staff role should NOT be able to suspend
    const isStaff = staffUser.role === "STAFF";
    const canSuspend =
      staffUser.role === "ADMIN" || staffUser.role === "SUPER_ADMIN";

    expect(isStaff).toBe(true);
    expect(canSuspend).toBe(false);
  });

  test("should prevent admin from suspending other admins", async () => {
    const targetUser = adminUser;
    const isAdmin = targetUser.role === "ADMIN";

    // Should block suspension if target is admin
    const shouldBlock = isAdmin;

    expect(shouldBlock).toBe(true);
  });

  test("should require minimum reason length for suspension", () => {
    const validReason = "Valid suspension reason here";
    const invalidReason = "Bad";

    expect(validReason.length).toBeGreaterThanOrEqual(5);
    expect(invalidReason.length).toBeLessThan(5);
  });

  test("should validate note content length limits", () => {
    const validContent = "Valid note content";
    const tooShort = "Bad";
    const tooLong = "A".repeat(5001);

    expect(validContent.length).toBeGreaterThanOrEqual(5);
    expect(validContent.length).toBeLessThanOrEqual(5000);

    expect(tooShort.length).toBeLessThan(5);
    expect(tooLong.length).toBeGreaterThan(5000);
  });

  test("should validate billing email content lengths", () => {
    const validSubject = "Invoice for December 2025";
    const validContent = "Your monthly invoice is attached";

    const invalidSubject = "Bad";
    const invalidContent = "Short";

    expect(validSubject.length).toBeGreaterThanOrEqual(5);
    expect(validContent.length).toBeGreaterThanOrEqual(10);

    expect(invalidSubject.length).toBeLessThan(5);
    expect(invalidContent.length).toBeLessThan(10);
  });
});

describe.skip("SQL Injection Prevention", () => {
  test("should handle malicious search input safely", async () => {
    const maliciousInput = "'; DROP TABLE users; --";

    // This should NOT execute SQL injection
    const users = await prisma.users.findMany({
      where: {
        OR: [
          { name: { contains: maliciousInput, mode: "insensitive" } },
          { email: { contains: maliciousInput, mode: "insensitive" } },
        ],
      },
    });

    // Should return empty array, not throw or drop table
    expect(Array.isArray(users)).toBe(true);
    expect(users.length).toBe(0);

    // Verify users table still exists
    const count = await prisma.users.count();
    expect(count).toBeGreaterThan(0);
  });

  test("should handle SQL injection in note content", async () => {
    const maliciousNote = "Test'; DELETE FROM admin_notes WHERE '1'='1";

    const user = await prisma.users.create({
      data: {
        email: "sql-injection-test@example.com",
        name: "SQL Injection Test",
        role: "CUSTOMER",
      },
    });

    // Create note with malicious content
    const note = await prisma.admin_notes.create({
      data: {
        userId: user.id,
        staffId: "staff-1",
        content: maliciousNote,
        category: "GENERAL",
      },
    });

    // Content should be stored as-is
    expect(note.content).toBe(maliciousNote);

    // Verify other notes weren't deleted
    const allNotes = await prisma.admin_notes.findMany();
    expect(allNotes.length).toBeGreaterThan(0);

    // Cleanup
    await prisma.admin_notes.delete({ where: { id: note.id } });
    await prisma.users.delete({ where: { id: user.id } });
  });
});

describe.skip("Input Validation Security", () => {
  test("should reject invalid email formats", () => {
    const validEmail = "user@example.com";
    const invalidEmails = [
      "notanemail",
      "@example.com",
      "user@",
      "user@.com",
      "user space@example.com",
    ];

    const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;

    expect(emailRegex.test(validEmail)).toBe(true);
    invalidEmails.forEach((email) => {
      expect(emailRegex.test(email)).toBe(false);
    });
  });

  test("should reject invalid category values", () => {
    const validCategories = [
      "GENERAL",
      "BILLING",
      "SUPPORT",
      "COMPLIANCE",
      "TECHNICAL",
      "SALES",
    ];
    const invalidCategories = ["INVALID", "random", "123", ""];

    validCategories.forEach((cat) => {
      expect(validCategories.includes(cat)).toBe(true);
    });

    invalidCategories.forEach((cat) => {
      expect(validCategories.includes(cat)).toBe(false);
    });
  });

  test("should reject invalid action values for status endpoint", () => {
    const validActions = ["suspend", "activate"];
    const invalidActions = ["delete", "remove", "ban", ""];

    validActions.forEach((action) => {
      expect(validActions.includes(action)).toBe(true);
    });

    invalidActions.forEach((action) => {
      expect(validActions.includes(action)).toBe(false);
    });
  });

  test("should sanitize HTML in billing email content", () => {
    const dangerousHTML = '<img src=x onerror="alert(1)">';
    const safeText = "Regular text content";

    // In real implementation, this would use DOMPurify
    // Here we just verify the content is stored
    expect(dangerousHTML).toContain("<");
    expect(safeText).not.toContain("<");
  });

  test("should validate IP address format", () => {
    const validIPs = ["203.0.113.1", "192.168.1.1", "10.0.0.1", "127.0.0.1"];

    const invalidIPs = ["256.0.0.1", "1.2.3", "notanip", "1.2.3.4.5"];

    const ipRegex = /^(\d{1,3}\.){3}\d{1,3}$/;

    validIPs.forEach((ip) => {
      expect(ipRegex.test(ip)).toBe(true);
    });

    invalidIPs.forEach((ip) => {
      expect(ipRegex.test(ip)).toBe(false);
    });
  });
});

describe.skip("Rate Limiting and Abuse Prevention", () => {
  test("should handle rapid API requests gracefully", async () => {
    // Simulate 10 rapid requests
    const promises = Array.from({ length: 10 }, () =>
      prisma.users.findMany({
        where: { role: "CUSTOMER" },
        take: 10,
      }),
    );

    const results = await Promise.all(promises);

    // All should succeed
    expect(results).toHaveLength(10);
    results.forEach((result) => {
      expect(Array.isArray(result)).toBe(true);
    });
  });

  test("should limit pagination to prevent excessive queries", () => {
    const requestedLimit = 500;
    const maxLimit = 100;

    const actualLimit = Math.min(requestedLimit, maxLimit);

    expect(actualLimit).toBe(100);
    expect(actualLimit).toBeLessThanOrEqual(maxLimit);
  });

  test("should validate page numbers to prevent negative indexes", () => {
    const page = -5;
    const limit = 20;

    const safePage = Math.max(1, page);
    const skip = (safePage - 1) * limit;

    expect(safePage).toBe(1);
    expect(skip).toBe(0);
  });
});

describe.skip("Data Privacy and GDPR Compliance", () => {
  test("should track IP addresses with user consent implied", async () => {
    // IP tracking is logged in privacy policy
    // Verify we're storing only necessary data
    const loginRecord = await prisma.login_history.create({
      data: {
        userId: customerUser.id,
        ipAddress: "203.0.113.99",
        country: "Qatar",
        provider: "credentials",
        success: true,
      },
    });

    // We store: IP, location, timestamp (minimal necessary data)
    expect(loginRecord.ipAddress).toBeDefined();
    expect(loginRecord.country).toBeDefined();
    expect(loginRecord.createdAt).toBeDefined();

    // We don't store: passwords, credit cards, SSN, etc.
    expect(loginRecord).not.toHaveProperty("password");
    expect(loginRecord).not.toHaveProperty("creditCard");

    // Cleanup
    await prisma.login_history.delete({ where: { id: loginRecord.id } });
  });

  test("should allow deletion of user data (right to be forgotten)", async () => {
    const user = await prisma.users.create({
      data: {
        email: "gdpr-delete-test@example.com",
        name: "GDPR Delete Test",
        role: "CUSTOMER",
      },
    });

    // Create associated data
    await prisma.admin_notes.create({
      data: {
        userId: user.id,
        staffId: "staff-1",
        content: "Test note",
        category: "GENERAL",
      },
    });

    await prisma.login_history.create({
      data: {
        userId: user.id,
        ipAddress: "203.0.113.1",
        provider: "credentials",
        success: true,
      },
    });

    // Delete user (cascade should delete all related data)
    await prisma.users.delete({ where: { id: user.id } });

    // Verify all data deleted
    const deletedNotes = await prisma.admin_notes.findMany({
      where: { userId: user.id },
    });

    const deletedHistory = await prisma.login_history.findMany({
      where: { userId: user.id },
    });

    expect(deletedNotes).toHaveLength(0);
    expect(deletedHistory).toHaveLength(0);
  });
});

describe.skip("Audit Trail Security", () => {
  test("should create audit log for account suspension", async () => {
    const user = await prisma.users.create({
      data: {
        email: "audit-test@example.com",
        name: "Audit Test",
        role: "CUSTOMER",
      },
    });

    // Simulate suspension (would trigger audit log in real API)
    await prisma.users.update({
      where: { id: user.id },
      data: {
        isSuspended: true,
        suspendedBy: staffUser.id,
        suspendedReason: "Security audit test",
      },
    });

    // Verify suspension data is recorded
    const suspended = await prisma.users.findUnique({
      where: { id: user.id },
      select: {
        isSuspended: true,
        suspendedBy: true,
        suspendedReason: true,
        suspendedAt: true,
      },
    });

    expect(suspended?.isSuspended).toBe(true);
    expect(suspended?.suspendedBy).toBe(staffUser.id);
    expect(suspended?.suspendedReason).toBeDefined();
    expect(suspended?.suspendedAt).toBeDefined();

    // Cleanup
    await prisma.users.delete({ where: { id: user.id } });
  });

  test("should track who created each admin note", async () => {
    const note = await prisma.admin_notes.create({
      data: {
        userId: customerUser.id,
        staffId: staffUser.id,
        content: "Security audit test note",
        category: "GENERAL",
      },
    });

    expect(note.staffId).toBe(staffUser.id);
    expect(note.staffId).toBeDefined();

    // Cleanup
    await prisma.admin_notes.delete({ where: { id: note.id } });
  });

  test("should track who sent each billing email", async () => {
    const billing = await prisma.billing_emails.create({
      data: {
        userId: customerUser.id,
        staffId: adminUser.id,
        subject: "Audit test",
        body: "Test",
        status: "SENT",
      },
    });

    expect(billing.staffId).toBe(adminUser.id);
    expect(billing.sentAt).toBeDefined();

    // Cleanup
    await prisma.billing_emails.delete({ where: { id: billing.id } });
  });
});

describe.skip("Session Security", () => {
  test("suspended users should not be able to maintain active sessions", async () => {
    const user = await prisma.users.create({
      data: {
        email: "session-test@example.com",
        name: "Session Test",
        role: "CUSTOMER",
        password: await bcrypt.hash("Pass123!", 12),
      },
    });

    // Suspend user
    await prisma.users.update({
      where: { id: user.id },
      data: { isSuspended: true },
    });

    // Verify user is suspended
    const suspended = await prisma.users.findUnique({
      where: { id: user.id },
      select: { isSuspended: true },
    });

    expect(suspended?.isSuspended).toBe(true);

    // In real implementation, sessions would be invalidated
    // Here we just verify the flag works

    // Cleanup
    await prisma.users.delete({ where: { id: user.id } });
  });
});

describe.skip("Input Sanitization", () => {
  test("should handle special characters in user names", async () => {
    const specialNames = [
      "O'Brien",
      "José García",
      "François Müller",
      "محمد أحمد",
      "User-Name_123",
    ];

    for (const name of specialNames) {
      const user = await prisma.users.create({
        data: {
          email: `special-${Date.now()}@example.com`,
          name,
          role: "CUSTOMER",
        },
      });

      const retrieved = await prisma.users.findUnique({
        where: { id: user.id },
      });

      expect(retrieved?.name).toBe(name);

      await prisma.users.delete({ where: { id: user.id } });
    }
  });

  test("should handle special characters in note content", async () => {
    const specialContent =
      "Customer's note with <html> & special chars: $100, #tag, @mention";

    const note = await prisma.admin_notes.create({
      data: {
        userId: customerUser.id,
        staffId: staffUser.id,
        content: specialContent,
        category: "GENERAL",
      },
    });

    expect(note.content).toBe(specialContent);

    await prisma.admin_notes.delete({ where: { id: note.id } });
  });

  test("should handle unicode and emoji in content", async () => {
    const unicodeContent = "测试内容 مرحبا 🎉 ✅ 🚀";

    const note = await prisma.admin_notes.create({
      data: {
        userId: customerUser.id,
        staffId: staffUser.id,
        content: unicodeContent,
        category: "GENERAL",
      },
    });

    expect(note.content).toBe(unicodeContent);

    await prisma.admin_notes.delete({ where: { id: note.id } });
  });
});

describe.skip("Error Handling Security", () => {
  test("should not expose database errors to users", async () => {
    // Try to access non-existent user
    const user = await prisma.users.findUnique({
      where: { id: "non-existent-id-12345" },
    });

    expect(user).toBeNull();
    // Should not throw database error, just return null
  });

  test("should handle database connection failures gracefully", async () => {
    // This would normally test with disconnected database
    // For now, we verify error handling structure exists
    try {
      await prisma.users.findMany({ where: { id: { equals: null as any } } });
    } catch (error) {
      expect(error).toBeDefined();
      // Error should be caught and handled, not exposed to user
    }
  });
});

describe.skip("Access Control Matrix", () => {
  const accessMatrix = [
    {
      role: "CUSTOMER",
      canViewUsers: false,
      canSuspend: false,
      canAddNotes: false,
    },
    { role: "STAFF", canViewUsers: true, canSuspend: false, canAddNotes: true },
    { role: "ADMIN", canViewUsers: true, canSuspend: true, canAddNotes: true },
    {
      role: "SUPER_ADMIN",
      canViewUsers: true,
      canSuspend: true,
      canAddNotes: true,
    },
  ];

  accessMatrix.forEach(({ role, canViewUsers, canSuspend, canAddNotes }) => {
    test(`${role} should have correct permissions`, () => {
      const isStaffOrAbove = ["STAFF", "ADMIN", "SUPER_ADMIN"].includes(role);
      const isAdminOrAbove = ["ADMIN", "SUPER_ADMIN"].includes(role);

      expect(isStaffOrAbove).toBe(canViewUsers);
      expect(isAdminOrAbove).toBe(canSuspend);
      expect(isStaffOrAbove).toBe(canAddNotes);
    });
  });
});
