<?php
/**
 * Unit tests for the Login_Handler class.
 *
 * @package HVAC_Community_Events
 */

use HVAC_Community_Events\Community\Login_Handler;
use PHPUnit\Framework\TestCase;

/**
 * @group login
 */
class Test_Login_Handler extends TestCase {

	/**
	 * @var Login_Handler
	 */
	private $login_handler;

	/**
	 * Setup method.
	 */
	protected function setUp(): void { // Changed to setUp and added :void
	 parent::setUp();
	 $this->login_handler = new Login_Handler();
	}

	/**
	 * Tear down method.
	 */
	protected function tearDown(): void { // Changed to tearDown and added :void
	 unset( $this->login_handler );
	 parent::tearDown();
	}

	/**
	 * Test that the class exists.
	 */
	public function test_class_exists() {
		$this->assertTrue( class_exists( 'HVAC_Community_Events\Community\Login_Handler' ) );
	}

	/**
	 * Test that the shortcode is registered.
	 */
	public function test_shortcode_registered() {
		global $shortcode_tags;
		$this->assertArrayHasKey( 'hvac_community_login', $shortcode_tags );
	}

	/**
	 * Test that handle_authentication exists and doesn't throw an error.
	 */
	public function test_handle_authentication_exists() {
		$this->assertTrue( method_exists( $this->login_handler, 'handle_authentication' ) );
		// Since the method currently relies on WP core, we can't easily test its behavior directly.
		// This test primarily ensures the method is defined and doesn't cause a fatal error.
		$username = 'testuser';
		$password = 'testpass';
		$this->login_handler->handle_authentication( $username, $password ); // Just call the method
		$this->assertNull( null ); // Always pass, just checking for no errors
	}

	/**
	 * Test custom_login_redirect with hvac_trainer role.
	 */
	public function test_custom_login_redirect_hvac_trainer() {
		$user = new \WP_User( 1 ); // Create a mock user with ID 1
		$user->roles = array( 'hvac_trainer' ); // Assign the hvac_trainer role

		$redirect_to = 'default_url'; // Default redirect URL
		$requested_redirect_to = ''; // No requested redirect

		$result = $this->login_handler->custom_login_redirect( $redirect_to, $requested_redirect_to, $user );
		$this->assertEquals( home_url( '/hvac-dashboard/' ), $result );
	}

	/**
	 * Test custom_login_redirect with a non-hvac_trainer role (admin).
	 */
	public function test_custom_login_redirect_non_hvac_trainer() {
		$user = new \WP_User( 1 ); // Create a mock user with ID 1
		$user->roles = array( 'administrator' ); // Assign the administrator role

		$redirect_to = 'default_url'; // Default redirect URL
		$requested_redirect_to = ''; // No requested redirect

		$result = $this->login_handler->custom_login_redirect( $redirect_to, $requested_redirect_to, $user );
		$this->assertEquals( admin_url(), $result );
	}

	/**
	 * Test custom_login_redirect with a non-hvac_trainer role and a requested redirect.
	 */
	public function test_custom_login_redirect_non_hvac_trainer_with_requested_redirect() {
		$user = new \WP_User( 1 ); // Create a mock user with ID 1
		$user->roles = array( 'administrator' ); // Assign the administrator role

		$redirect_to = 'default_url'; // Default redirect URL
		$requested_redirect_to = 'http://example.com/admin-page'; // A requested redirect

		$result = $this->login_handler->custom_login_redirect( $redirect_to, $requested_redirect_to, $user );
		$this->assertEquals( 'http://example.com/admin-page', $result );
	}

	/**
	 * Test custom_login_redirect with a WP_Error object (failed login).
	 */
	public function test_custom_login_redirect_wp_error() {
		$user = new \WP_Error( 'authentication_failed', 'Authentication failed.' );

		$redirect_to = 'default_url'; // Default redirect URL
		$requested_redirect_to = ''; // No requested redirect

		$result = $this->login_handler->custom_login_redirect( $redirect_to, $requested_redirect_to, $user );
		$this->assertEquals( 'default_url', $result );
	}
}