<?php
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class BridgeHub_Shortcodes {

	public function __construct() {
		add_shortcode( 'bridgehub_testimonial_slider', array( $this, 'render_slider_shortcode' ) );
		add_shortcode( 'ajsqtesl_slider', array( $this, 'render_legacy_shortcode' ) );
	}

	public function render_slider_shortcode( $atts ) {
		$atts = shortcode_atts(
			array(
				'id' => 0,
			),
			$atts,
			'bridgehub_testimonial_slider'
		);

		$slider_id = absint( $atts['id'] );
		if ( $slider_id <= 0 ) {
			return '';
		}

		$slider_post = get_post( $slider_id );
		if ( ! $slider_post || 'bridgehub_slider' !== $slider_post->post_type ) {
			return '';
		}

		// Primary: ordered ID list from testimonial manager.
		$testimonial_ids = get_post_meta( $slider_id, 'bridgehub_testimonial_ids', true );
		if ( is_array( $testimonial_ids ) && ! empty( $testimonial_ids ) ) {
			return $this->render_children_slider_output( $slider_id, $testimonial_ids );
		}

		// Fallback: query by parent relationship meta.
		$parent_testimonials = get_posts(
			array(
				'post_type'      => 'bhub_testimonial',
				// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query -- Meta query is required to retrieve testimonials assigned to this slider.
				'meta_query'     => array(
					array(
						'key'   => 'bridgehub_testimonial_parent_slider',
						'value' => $slider_id,
					),
				),
				'posts_per_page' => -1,
				'post_status'    => 'publish',
				'orderby'        => 'menu_order',
				'order'          => 'ASC',
			)
		);

		if ( ! empty( $parent_testimonials ) ) {
			$ids = wp_list_pluck( $parent_testimonials, 'ID' );
			return $this->render_children_slider_output( $slider_id, $ids );
		}

		// Legacy: slider post itself holds the testimonial content.
		return $this->render_single_testimonial_output( $slider_post );
	}

	public function render_legacy_shortcode( $atts ) {
		$all_sliders = get_posts(
			array(
				'post_type'      => 'bridgehub_slider',
				'posts_per_page' => -1,
				'post_status'    => 'publish',
				'orderby'        => 'modified',
				'order'          => 'DESC',
			)
		);

		if ( empty( $all_sliders ) ) {
			return '';
		}

		ob_start();
		foreach ( $all_sliders as $slider ) {
			$testimonial_ids = get_post_meta( $slider->ID, 'bridgehub_testimonial_ids', true );
			if ( is_array( $testimonial_ids ) && ! empty( $testimonial_ids ) ) {
				// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
				echo $this->render_children_slider_output( $slider->ID, $testimonial_ids );
			} else {
				// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- Output is escaped within render_single_testimonial_output().
				echo $this->render_single_testimonial_output( $slider );
			}
		}
		return ob_get_clean();
	}

	/**
	 * Render a carousel with multiple child testimonial slides.
	 */
	private function render_children_slider_output( $slider_id, $testimonial_ids ) {
		$testimonial_ids = array_map( 'absint', array_filter( $testimonial_ids ) );

		$query = new WP_Query(
			array(
				'post_type'      => 'bhub_testimonial',
				'post__in'       => $testimonial_ids,
				'posts_per_page' => -1,
				'post_status'    => 'publish',
				'orderby'        => 'post__in',
			)
		);

		if ( ! $query->have_posts() ) {
			wp_reset_postdata();
			return '';
		}

		$settings = $this->get_slider_settings( $slider_id );
		$output   = $this->render_slider_output( $query, $settings, 'bridgehub-' . $slider_id );

		wp_reset_postdata();

		return $output;
	}

	/**
	 * Render a single-testimonial slider (legacy mode).
	 */
	private function render_single_testimonial_output( $slider_post ) {
		$settings = $this->get_slider_settings( $slider_post->ID );

		$bg_color            = sanitize_hex_color( $settings['bg_color'] );
		$text_color          = sanitize_hex_color( $settings['text_color'] );
		$image_height        = absint( $settings['image_height'] );
		$image_border_radius = absint( $settings['image_border_radius'] );
		$auto_slide          = 'yes' === $settings['auto_slide'] ? 'true' : 'false';
		$interval            = absint( $settings['interval'] );
		$transition_speed    = absint( $settings['transition_speed'] );
		$show_navigation     = 'yes' === $settings['navigation'];
		$show_indicators     = 'yes' === $settings['indicators'];
		$pause_on_hover      = 'yes' === $settings['pause_on_hover'] ? 'true' : 'false';

		$client_name = get_the_title( $slider_post );
		$testimonial = apply_filters( 'the_content', $slider_post->post_content ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound
		$designation = get_post_meta( $slider_post->ID, 'bridgehub_testimonial_designation', true );
		if ( '' === $designation ) {
			$designation = get_post_meta( $slider_post->ID, 'ajsqtesl_slider_subtitle', true );
		}
		$company = get_post_meta( $slider_post->ID, 'bridgehub_testimonial_company', true );
		$rating  = absint( get_post_meta( $slider_post->ID, 'bridgehub_testimonial_rating', true ) );

		$img_style = sprintf( 'height:%spx;border-radius:%s%%;', $image_height, $image_border_radius );

		ob_start();
		?>
		<div class="slider-container bridgehub-slider-container" id="bridgehub-slider-bridgehub-<?php echo esc_attr( $slider_post->ID ); ?>"
			style="background:<?php echo esc_attr( $bg_color ); ?>;"
			data-auto-slide="<?php echo esc_attr( $auto_slide ); ?>"
			data-interval="<?php echo esc_attr( $interval ); ?>"
			data-transition-speed="<?php echo esc_attr( $transition_speed ); ?>"
			data-pause-on-hover="<?php echo esc_attr( $pause_on_hover ); ?>"
		>
			<div class="aj-slider bridgehub-aj-slider">
				<div class="aj-slider-inner bridgehub-aj-slider-inner">
					<div class="aj-slider-item active">
						<div class="aj-slider-img">
							<?php
							if ( has_post_thumbnail( $slider_post->ID ) ) {
								echo get_the_post_thumbnail(
									$slider_post->ID,
									'full',
									array(
										'class' => 'd-block ajstsimg',
										'style' => $img_style,
									)
								);
							}
							?>
						</div>
						<div class="aj-slider-caption d-md-block" style="color:<?php echo esc_attr( $text_color ); ?>;">
							<?php if ( '' !== $testimonial ) : ?>
								<p><?php echo wp_kses_post( $testimonial ); ?></p>
							<?php endif; ?>
							<?php if ( '' !== $client_name ) : ?>
								<h5><?php echo esc_html( $client_name ); ?></h5>
							<?php endif; ?>
							<?php if ( '' !== $designation && '' !== $company ) : ?>
								<h6><?php echo esc_html( $designation ); ?>, <?php echo esc_html( $company ); ?></h6>
							<?php elseif ( '' !== $designation ) : ?>
								<h6><?php echo esc_html( $designation ); ?></h6>
							<?php elseif ( '' !== $company ) : ?>
								<h6><?php echo esc_html( $company ); ?></h6>
							<?php endif; ?>
							<?php if ( $rating > 0 ) : ?>
								<div class="aj-slider-rating" aria-label="<?php
									/* translators: %d: Rating value out of 5. */
									echo esc_attr( sprintf( __( 'Rating: %d out of 5', 'aj-square-testimonial-slider' ), $rating ) );
									?>">
									<?php
									for ( $i = 1; $i <= 5; $i++ ) {
										if ( $i <= $rating ) {
											echo '<span class="aj-star aj-star-filled" aria-hidden="true">&#9733;</span>';
										} else {
											echo '<span class="aj-star aj-star-empty" aria-hidden="true">&#9734;</span>';
										}
									}
									?>
								</div>
							<?php endif; ?>
						</div>
					</div>
				</div>

				<?php if ( $show_navigation ) : ?>
					<button class="aj-slider-prev bridgehub-nav-prev" aria-label="<?php esc_attr_e( 'Previous slide', 'aj-square-testimonial-slider' ); ?>"><span></span></button>
					<button class="aj-slider-next bridgehub-nav-next" aria-label="<?php esc_attr_e( 'Next slide', 'aj-square-testimonial-slider' ); ?>"><span></span></button>
				<?php endif; ?>

				<?php if ( $show_indicators ) : ?>
					<div class="aj-slider-indicators bridgehub-indicators" role="tablist" aria-label="<?php esc_attr_e( 'Slide navigation', 'aj-square-testimonial-slider' ); ?>">
						<div class="aj-slider-indicator active"
							role="tab"
							tabindex="0"
							aria-label="<?php esc_attr_e( 'Go to slide 1', 'aj-square-testimonial-slider' ); ?>"
							aria-selected="true"
						></div>
					</div>
				<?php endif; ?>
			</div>
		</div>
		<?php
		return ob_get_clean();
	}

	private function get_slider_settings( $slider_id ) {
		$defaults = array(
			'bg_color'            => get_theme_mod( 'slider_bg_color', '#f0f0f0' ),
			'text_color'          => get_theme_mod( 'slider_text_color', '#262525' ),
			'image_height'        => get_theme_mod( 'thumbnail_height', '100' ),
			'image_border_radius' => get_theme_mod( 'ajsqtesl_image_border_radius', '0' ),
			'auto_slide'          => 'yes',
			'interval'            => '5000',
			'transition_speed'    => '500',
			'navigation'          => 'yes',
			'indicators'          => 'yes',
			'pause_on_hover'      => 'yes',
		);

		if ( $slider_id > 0 ) {
			$meta_keys = array(
				'bg_color'            => 'bridgehub_slider_bg_color',
				'text_color'          => 'bridgehub_slider_text_color',
				'image_height'        => 'bridgehub_slider_image_height',
				'image_border_radius' => 'bridgehub_slider_image_border_radius',
				'auto_slide'          => 'bridgehub_slider_auto_slide',
				'interval'            => 'bridgehub_slider_interval',
				'transition_speed'    => 'bridgehub_slider_transition_speed',
				'navigation'          => 'bridgehub_slider_navigation',
				'indicators'          => 'bridgehub_slider_indicators',
				'pause_on_hover'      => 'bridgehub_slider_pause_on_hover',
			);

			foreach ( $meta_keys as $key => $meta_key ) {
				$val = get_post_meta( $slider_id, $meta_key, true );
				if ( '' !== $val ) {
					$defaults[ $key ] = $val;
				}
			}
		}

		return $defaults;
	}

	/**
	 * Render the multi-testimonial carousel HTML.
	 */
	private function render_slider_output( $query, $settings, $unique_id ) {
		$bg_color            = sanitize_hex_color( $settings['bg_color'] );
		$text_color          = sanitize_hex_color( $settings['text_color'] );
		$image_height        = absint( $settings['image_height'] );
		$image_border_radius = absint( $settings['image_border_radius'] );
		$auto_slide          = 'yes' === $settings['auto_slide'] ? 'true' : 'false';
		$interval            = absint( $settings['interval'] );
		$transition_speed    = absint( $settings['transition_speed'] );
		$show_navigation     = 'yes' === $settings['navigation'];
		$show_indicators     = 'yes' === $settings['indicators'];
		$pause_on_hover      = 'yes' === $settings['pause_on_hover'] ? 'true' : 'false';

		ob_start();
		?>
		<div class="slider-container bridgehub-slider-container" id="bridgehub-slider-<?php echo esc_attr( $unique_id ); ?>"
			style="background:<?php echo esc_attr( $bg_color ); ?>;"
			data-auto-slide="<?php echo esc_attr( $auto_slide ); ?>"
			data-interval="<?php echo esc_attr( $interval ); ?>"
			data-transition-speed="<?php echo esc_attr( $transition_speed ); ?>"
			data-pause-on-hover="<?php echo esc_attr( $pause_on_hover ); ?>"
		>
			<div class="aj-slider bridgehub-aj-slider">
				<div class="aj-slider-inner bridgehub-aj-slider-inner">
					<?php
					$index = 0;
					while ( $query->have_posts() ) :
						$query->the_post();
						$testimonial_id = get_the_ID();
						$designation    = get_post_meta( $testimonial_id, 'bridgehub_testimonial_designation', true );
						if ( '' === $designation ) {
							$designation = get_post_meta( $testimonial_id, 'ajsqtesl_slider_subtitle', true );
						}
						$company = get_post_meta( $testimonial_id, 'bridgehub_testimonial_company', true );
						$rating  = absint( get_post_meta( $testimonial_id, 'bridgehub_testimonial_rating', true ) );
						$img_style = sprintf( 'height:%spx;border-radius:%s%%;', $image_height, $image_border_radius );
						?>
						<div class="aj-slider-item<?php echo 0 === $index ? ' active' : ''; ?>">
							<div class="aj-slider-img">
								<?php
								if ( has_post_thumbnail() ) {
									the_post_thumbnail(
										'full',
										array(
											'class' => 'd-block ajstsimg',
											'style' => $img_style,
										)
									);
								}
								?>
							</div>
							<div class="aj-slider-caption d-md-block" style="color:<?php echo esc_attr( $text_color ); ?>;">
								<?php
								$content = get_the_content();
								if ( '' !== $content ) :
								?>
									<p><?php the_content(); ?></p>
								<?php endif; ?>
								<h5><?php echo esc_html( get_the_title() ); ?></h5>
								<?php if ( '' !== $designation && '' !== $company ) : ?>
									<h6>- <?php echo esc_html( $designation ); ?>, <?php echo esc_html( $company ); ?></h6>
								<?php elseif ( '' !== $designation ) : ?>
									<h6>- <?php echo esc_html( $designation ); ?></h6>
								<?php elseif ( '' !== $company ) : ?>
									<h6>- <?php echo esc_html( $company ); ?></h6>
								<?php endif; ?>
								<?php if ( $rating > 0 ) : ?>
									<div class="aj-slider-rating" aria-label="<?php
										echo esc_attr(
											sprintf(
												/* translators: %d: Rating value out of 5. */
												__( 'Rating: %d out of 5', 'aj-square-testimonial-slider' ),
												$rating
											)
										);
										?>">

										<?php
										for ( $i = 1; $i <= 5; $i++ ) {
											if ( $i <= $rating ) {
												echo '<span class="aj-star aj-star-filled" aria-hidden="true">&#9733;</span>';
											} else {
												echo '<span class="aj-star aj-star-empty" aria-hidden="true">&#9734;</span>';
											}
										}
										?>
									</div>
								<?php endif; ?>
							</div>
						</div>
						<?php
						$index++;
					endwhile;
					?>
				</div>

				<?php if ( $show_navigation ) : ?>
					<button class="aj-slider-prev bridgehub-nav-prev" aria-label="<?php esc_attr_e( 'Previous slide', 'aj-square-testimonial-slider' ); ?>"><span></span></button>
					<button class="aj-slider-next bridgehub-nav-next" aria-label="<?php esc_attr_e( 'Next slide', 'aj-square-testimonial-slider' ); ?>"><span></span></button>
				<?php endif; ?>

				<?php if ( $show_indicators ) : ?>
					<div class="aj-slider-indicators bridgehub-indicators" role="tablist" aria-label="<?php esc_attr_e( 'Slide navigation', 'aj-square-testimonial-slider' ); ?>">
						<?php
						$query->rewind_posts();
						$ind_index = 0;
						while ( $query->have_posts() ) :
							$query->the_post();
							?>
							<div class="aj-slider-indicator<?php echo 0 === $ind_index ? ' active' : ''; ?>"
								role="tab"
								tabindex="0"
								aria-label="<?php
								echo esc_attr(
									sprintf(
										/* translators: %d: Slide number. */
										__( 'Go to slide %d', 'aj-square-testimonial-slider' ),
										$ind_index + 1
									)
								);
								?>"
								aria-selected="<?php echo 0 === $ind_index ? 'true' : 'false'; ?>" >
							</div>
							<?php
							$ind_index++;
						endwhile;
						?>
					</div>
				<?php endif; ?>
			</div>
		</div>
		<?php
		return ob_get_clean();
	}
}