class BBP_Login_Widget extends WP_Widget {

	/**
	 * bbPress Login Widget
	 *
	 * Registers the login widget
	 *
	 * @since 2.0.0 bbPress (r2827)
	 */
	public function __construct() {
		$widget_ops = apply_filters( 'bbp_login_widget_options', array(
			'classname'                   => 'bbp_widget_login',
			'description'                 => esc_html__( 'A simple login form with optional links to sign-up and lost password pages.', 'bbpress' ),
			'customize_selective_refresh' => true
		) );

		parent::__construct( false, esc_html__( '(bbPress) Login Widget', 'bbpress' ), $widget_ops );
	}

	/**
	 * Register the widget
	 *
	 * @since 2.0.0 bbPress (r3389)
	 */
	public static function register_widget() {
		register_widget( 'BBP_Login_Widget' );
	}

	/**
	 * Displays the output, the login form
	 *
	 * @since 2.0.0 bbPress (r2827)
	 *
	 * @param array $args Arguments
	 * @param array $instance Instance
	 */
	public function widget( $args = array(), $instance = array() ) {

		// Get widget settings
		$settings = $this->parse_settings( $instance );

		// Typical WordPress filter
		$settings['title'] = apply_filters( 'widget_title', $settings['title'], $instance, $this->id_base );

		// bbPress filters
		$settings['title']    = apply_filters( 'bbp_login_widget_title',    $settings['title'],    $instance, $this->id_base );
		$settings['register'] = apply_filters( 'bbp_login_widget_register', $settings['register'], $instance, $this->id_base );
		$settings['lostpass'] = apply_filters( 'bbp_login_widget_lostpass', $settings['lostpass'], $instance, $this->id_base );

		echo $args['before_widget'];

		if ( ! empty( $settings['title'] ) ) {
			echo $args['before_title'] . $settings['title'] . $args['after_title'];
		}

		if ( ! is_user_logged_in() ) : ?>

			<form method="post" action="<?php bbp_wp_login_action( array( 'context' => 'login_post' ) ); ?>" class="bbp-login-form">
				<fieldset class="bbp-form">
					<legend><?php esc_html_e( 'Log In', 'bbpress' ); ?></legend>

					<div class="bbp-username">
						<label for="user_login"><?php esc_html_e( 'Username', 'bbpress' ); ?>: </label>
						<input type="text" name="log" value="<?php bbp_sanitize_val( 'user_login', 'text' ); ?>" size="20" maxlength="100" id="user_login" autocomplete="off" />
					</div>

					<div class="bbp-password">
						<label for="user_pass"><?php esc_html_e( 'Password', 'bbpress' ); ?>: </label>
						<input type="password" name="pwd" value="<?php bbp_sanitize_val( 'user_pass', 'password' ); ?>" size="20" id="user_pass" autocomplete="off" />
					</div>

					<div class="bbp-remember-me">
						<input type="checkbox" name="rememberme" value="forever" <?php checked( bbp_get_sanitize_val( 'rememberme', 'checkbox' ) ); ?> id="rememberme" />
						<label for="rememberme"><?php esc_html_e( 'Keep me signed in', 'bbpress' ); ?></label>
					</div>

					<?php do_action( 'login_form' ); ?>

					<div class="bbp-submit-wrapper">

						<button type="submit" name="user-submit" id="user-submit" class="button submit user-submit"><?php esc_html_e( 'Log In', 'bbpress' ); ?></button>

						<?php bbp_user_login_fields(); ?>

					</div>

					<?php if ( ! empty( $settings['register'] ) || ! empty( $settings['lostpass'] ) ) : ?>

						<div class="bbp-login-links">

							<?php if ( ! empty( $settings['register'] ) ) : ?>

								<a href="<?php echo esc_url( $settings['register'] ); ?>" title="<?php esc_attr_e( 'Register', 'bbpress' ); ?>" class="bbp-register-link"><?php esc_html_e( 'Register', 'bbpress' ); ?></a>

							<?php endif; ?>

							<?php if ( ! empty( $settings['lostpass'] ) ) : ?>

								<a href="<?php echo esc_url( $settings['lostpass'] ); ?>" title="<?php esc_attr_e( 'Lost Password', 'bbpress' ); ?>" class="bbp-lostpass-link"><?php esc_html_e( 'Lost Password', 'bbpress' ); ?></a>

							<?php endif; ?>

						</div>

					<?php endif; ?>

				</fieldset>
			</form>

		<?php else : ?>

			<div class="bbp-logged-in">
				<a href="<?php bbp_user_profile_url( bbp_get_current_user_id() ); ?>" class="submit user-submit"><?php echo get_avatar( bbp_get_current_user_id(), '40' ); ?></a>
				<h4><?php bbp_user_profile_link( bbp_get_current_user_id() ); ?></h4>

				<?php bbp_logout_link(); ?>
			</div>

		<?php endif;

		echo $args['after_widget'];
	}

	/**
	 * Update the login widget options
	 *
	 * @since 2.0.0 bbPress (r2827)
	 *
	 * @param array $new_instance The new instance options
	 * @param array $old_instance The old instance options
	 */
	public function update( $new_instance, $old_instance ) {
		$instance             = $old_instance;
		$instance['title']    = strip_tags( $new_instance['title'] );
		$instance['register'] = esc_url_raw( $new_instance['register'] );
		$instance['lostpass'] = esc_url_raw( $new_instance['lostpass'] );

		return $instance;
	}

	/**
	 * Output the login widget options form
	 *
	 * @since 2.0.0 bbPress (r2827)
	 *
	 * @param $instance Instance
	 */
	public function form( $instance = array() ) {

		// Get widget settings
		$settings = $this->parse_settings( $instance ); ?>

		<p>
			<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php esc_html_e( 'Title:', 'bbpress' ); ?>
			<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $settings['title'] ); ?>" /></label>
		</p>

		<p>
			<label for="<?php echo $this->get_field_id( 'register' ); ?>"><?php esc_html_e( 'Register URI:', 'bbpress' ); ?>
			<input class="widefat" id="<?php echo $this->get_field_id( 'register' ); ?>" name="<?php echo $this->get_field_name( 'register' ); ?>" type="text" value="<?php echo esc_url( $settings['register'] ); ?>" /></label>
		</p>

		<p>
			<label for="<?php echo $this->get_field_id( 'lostpass' ); ?>"><?php esc_html_e( 'Lost Password URI:', 'bbpress' ); ?>
			<input class="widefat" id="<?php echo $this->get_field_id( 'lostpass' ); ?>" name="<?php echo $this->get_field_name( 'lostpass' ); ?>" type="text" value="<?php echo esc_url( $settings['lostpass'] ); ?>" /></label>
		</p>

		<?php
	}

	/**
	 * Merge the widget settings into defaults array.
	 *
	 * @since 2.3.0 bbPress (r4802)
	 *
	 * @param $instance Instance
	 */
	public function parse_settings( $instance = array() ) {
		return bbp_parse_args( $instance, array(
			'title'    => '',
			'register' => '',
			'lostpass' => ''
		), 'login_widget_settings' );
	}
}