<?php

namespace Tests\Feature;

use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class AdminLoginTest extends TestCase
{
    use RefreshDatabase;

    /**
     * Test admin login page can be rendered.
     */
    public function test_admin_can_view_login_page()
    {
        $response = $this->get('/admin/login');
        $response->assertStatus(200);
    }

    /**
     * Test admin login validation fails if email is invalid.
     */
    public function test_admin_login_fails_if_email_is_invalid()
    {
        $response = $this->post('/admin/login', [
            'email' => 'invalid-email',
            'password' => 'password',
        ]);

        $response->assertSessionHasErrors(['email']);
        $this->assertEquals(
            'Please enter a valid email address.',
            session('errors')->get('email')[0]
        );
    }

    /**
     * Test admin login validation fails if email is not registered.
     */
    public function test_admin_login_fails_if_email_is_not_registered()
    {
        $response = $this->post('/admin/login', [
            'email' => 'unregistered@example.com',
            'password' => 'password',
        ]);

        $response->assertSessionHasErrors(['email']);
        $this->assertEquals(
            'This email is not registered.',
            session('errors')->get('email')[0]
        );
    }

    /**
     * Test admin login validation fails if email is registered but not as an admin.
     */
    public function test_admin_login_fails_if_user_is_not_an_admin()
    {
        User::create([
            'name' => 'Regular User',
            'email' => 'user@example.com',
            'password' => bcrypt('password'),
            'role' => 'employer', // Not admin
        ]);

        $response = $this->post('/admin/login', [
            'email' => 'user@example.com',
            'password' => 'password',
        ]);

        $response->assertSessionHasErrors(['email']);
        $this->assertEquals(
            'This email is not registered as an admin.',
            session('errors')->get('email')[0]
        );
    }

    /**
     * Test admin login validation fails if password is wrong.
     */
    public function test_admin_login_fails_if_password_is_incorrect()
    {
        User::create([
            'name' => 'Admin User',
            'email' => 'admin_test@example.com',
            'password' => bcrypt('correct_password'),
            'role' => 'admin',
        ]);

        $response = $this->post('/admin/login', [
            'email' => 'admin_test@example.com',
            'password' => 'wrong_password',
        ]);

        $response->assertSessionHasErrors(['password']);
        $this->assertEquals(
            'The password you entered is incorrect.',
            session('errors')->get('password')[0]
        );
    }

    /**
     * Test admin login succeeds with correct credentials.
     */
    public function test_admin_login_succeeds_with_correct_credentials()
    {
        $admin = User::create([
            'name' => 'Admin User',
            'email' => 'admin_test@example.com',
            'password' => bcrypt('correct_password'),
            'role' => 'admin',
        ]);

        $response = $this->post('/admin/login', [
            'email' => 'admin_test@example.com',
            'password' => 'correct_password',
        ]);

        $response->assertRedirect('/admin/dashboard');
        $this->assertAuthenticatedAs($admin);
    }
}