<?php
/**
 * Includes -> Components -> Appearance
 *
 */
if ( ! defined( 'ABSPATH' ) ) exit;


if ( ! function_exists( 'tbkkt_appearance_clamp_rotation_deg' ) ) :
	function tbkkt_appearance_clamp_rotation_deg( $deg ): int {
		if ( ! is_numeric( $deg ) ) return 0;

		$n = (int) round( (float) $deg );
		$n = $n % 360;
		if ( $n < 0 ) $n += 360;

		return $n;
	}
endif;


if ( ! function_exists( 'tbkkt_appearance_build_style_fragment' ) ) :
	function tbkkt_appearance_build_style_fragment( array $opts = array() ): string {
		$parts = array();
		if ( array_key_exists( 'size', $opts ) ) :
			$size_raw = trim( (string) $opts['size'] );
			$size     = tbkkt_style_value_sanitize_length( $size_raw );
			if ( $size !== '' ) :
				$parts[] = '--tbkkt--appearance--size:' . $size . ';';
			endif;
		endif;
		$omit_rotation = ! empty( $opts['omit_rotation'] );
		if ( ! $omit_rotation && array_key_exists( 'rotation_deg', $opts ) ) :
			$rot = tbkkt_appearance_clamp_rotation_deg( $opts['rotation_deg'] ?? 0 );
			if ( $rot !== 0 ) :
				$parts[] = '--tbkkt--appearance--transform:rotate(' . (int) $rot . 'deg);';
			endif;
		endif;

		return implode( '', $parts );
	}
endif;


if ( ! function_exists( 'tbkkt_appearance_merge_transform_into_graphic_markup' ) ) :
	function tbkkt_appearance_merge_transform_into_graphic_markup( string $html, $rotation_deg ): string {
		$html = trim( (string) $html );
		if ( $html === '' ) return $html;

		$rot = tbkkt_appearance_clamp_rotation_deg( $rotation_deg ?? 0 );
		if ( $rot === 0 ) return $html;

		$style = '--tbkkt--appearance--transform:rotate(' . (int) $rot . 'deg);';
		$class = 'tbkkt-has-transform';

		$merge_opening_tag = static function ( string $tag, string $rest, string $style, string $class ): string {
			if ( preg_match( '/\bclass\s*=\s*(["\'])(.*?)\1/s', $rest, $cm ) ) :
				$q       = $cm[1];
				$merged  = trim( $cm[2] . ' ' . $class );
				$rest    = preg_replace(
					'/\bclass\s*=\s*(["\'])(.*?)\1/s',
					'class=' . $q . esc_attr( $merged ) . $q,
					$rest,
					1
				);
			else :
				$rest = ' class="' . esc_attr( $class ) . '"' . $rest;
			endif;

			if ( preg_match( '/\bstyle\s*=\s*(["\'])(.*?)\1/s', $rest, $sm ) ) :
				$q       = $sm[1];
				$merged  = trim( rtrim( (string) $sm[2], ';' ) . ';' . $style );
				$rest    = preg_replace(
					'/\bstyle\s*=\s*(["\'])(.*?)\1/s',
					'style=' . $q . esc_attr( $merged ) . $q,
					$rest,
					1
				);
			else :
				$rest = $rest . ' style="' . esc_attr( $style ) . '"';
			endif;

			return '<' . $tag . $rest . '>';
		};

		if ( preg_match( '/<svg\b/i', $html ) ) :
			$done = false;
			$out  = preg_replace_callback(
				'/<svg(\s[^>]*)?>/i',
				static function ( array $m ) use ( $style, $class, $merge_opening_tag, &$done ): string {
					if ( $done ) :
						return $m[0];
					endif;
					$done = true;
					$rest = isset( $m[1] )
						? $m[1]
						: '';

					return $merge_opening_tag( 'svg', $rest, $style, $class );
				},
				$html,
				1
			);

			return is_string( $out )
				? $out
				: $html;
		endif;

		$done = false;
		$out  = preg_replace_callback(
			'/<img(\s[^>]*)?>/i',
			static function ( array $m ) use ( $style, $class, $merge_opening_tag, &$done ): string {
				if ( $done ) :
					return $m[0];
				endif;
				$done = true;
				$rest = isset( $m[1] )
					? $m[1]
					: '';

				return $merge_opening_tag( 'img', $rest, $style, $class );
			},
			$html,
			1
		);

		return is_string( $out )
			? $out
			: $html;
	}
endif;