/**
 * Subtle highlight for sponsored (branded content) posts in JNews homepage modules.
 * MURAI.MY VARIANT.
 *
 * Drop this into the child theme's functions.php (or require it from there).
 *
 * Murai's homepage uses the same two modules as Hype for the pinned-post row:
 *   - desktop: block 22 (jeg_pl_md_5, 3 cards, 30px gutter inside each card) - same as Varnam
 *   - mobile:  block 18 (jeg_pl_lg_2, 150px floated thumb + text, full-bleed, hairline under each row)
 * The CSS is identical to the Hype file.
 *
 * Note: Murai also has an editorial category named "Spotlight". The card tag is
 * kept as "Spotlight" for consistency with the other sites; change it with:
 *   add_filter( 'jnews_sponsored_card_tag', fn() => 'Tajaan' );
 *
 * Driven entirely by the JNews "Sponsored Post" metabox on the post:
 *   - Sponsored Post       = on
 *   - Sponsored Post Label = e.g. "Presented by"
 *   - Sponsored Post Name  = e.g. the partner's name
 * A sponsored post only gets the treatment inside modules that have
 * "Include Pinned Post" enabled (the sticky_post module option). In every other
 * module it renders as a normal card.
 *
 * Per-site colours: add_filter( 'jnews_sponsored_card_colors', fn( $c ) => [ 'tint' => '#…', 'accent' => '#…' ] + $c );
 */

/**
 * Remember whether the module currently being built has "Include Pinned Post" on.
 *
 * jnews_module_attr_global fires in ModuleViewAbstract::build_module() right
 * before render_module(), once per module, so the flag always reflects the
 * module whose cards are being rendered.
 */
function jnews_sponsored_track_module( $attr ) {
	$GLOBALS['jnews_sponsored_module_pinned'] = isset( $attr['sticky_post'] ) && in_array( $attr['sticky_post'], array( 'yes', 'true' ), true );

	return $attr;
}
add_filter( 'jnews_module_attr_global', 'jnews_sponsored_track_module' );

/**
 * True when $post_id is a sponsored post being rendered inside a pinned-post module.
 */
function jnews_sponsored_card_applies( $post_id ) {
	return ! empty( $GLOBALS['jnews_sponsored_module_pinned'] )
		&& jnews_get_metabox_value( 'jnews_single_post.sponsored_post', null, $post_id );
}

/**
 * Add a `jnews-sponsored` class to module cards of sponsored posts.
 *
 * The parent wraps jnews_post_class() in function_exists(), and the child
 * functions.php loads first, so this copy replaces it. Body is the parent's,
 * plus the sponsored check.
 */
function jnews_post_class( $class = '', $post_id = null ) {
	$post_type = get_post_type( $post_id );
	if ( $post_type && post_type_supports( $post_type, 'post-formats' ) ) {
		$post_format = get_post_format( $post_id );

		if ( $post_format && ! is_wp_error( $post_format ) ) {
			$class .= ' format-' . sanitize_html_class( $post_format );
		} else {
			$class .= ' format-standard';
		}
	}

	if ( jnews_sponsored_card_applies( $post_id ) ) {
		$class .= ' jnews-sponsored';
	}

	return 'class="' . $class . '"';
}

/**
 * Prepend the "<tag> / <label> <sponsor>" line to the card meta of sponsored posts.
 * CSS positions it at the top of the card.
 */
function jnews_sponsored_card_line( $output, $post ) {
	if ( ! jnews_sponsored_card_applies( $post->ID ) ) {
		return $output;
	}

	$label = jnews_get_metabox_value( 'jnews_single_post.sponsored_post_label', 'Presented by', $post->ID );
	$name  = jnews_get_metabox_value( 'jnews_single_post.sponsored_post_name', '', $post->ID );

	$tag   = apply_filters( 'jnews_sponsored_card_tag', 'Spotlight' );

	$line  = '<div class="jeg_sponsor_line">';
	$line .= '<span class="jeg_sponsor_tag"><i class="fa fa-star"></i> ' . esc_html( $tag ) . '</span>';
	if ( $name ) {
		$line .= '<span class="jeg_sponsor_by">' . esc_html( $label ) . ' <strong>' . esc_html( $name ) . '</strong></span>';
	}
	$line .= '</div>';

	return $line . $output;
}
add_filter( 'jnews_module_post_meta_1', 'jnews_sponsored_card_line', 10, 2 );
add_filter( 'jnews_module_post_meta_2', 'jnews_sponsored_card_line', 10, 2 );
add_filter( 'jnews_module_post_meta_3', 'jnews_sponsored_card_line', 10, 2 );

/**
 * Card styling. JNews enqueues its styles at priority 98 (FrontendAsset::load_style),
 * so this must run later; `jnews-style` is the theme stylesheet handle, enqueued in all modes.
 */
function jnews_sponsored_card_css() {
	$c = apply_filters( 'jnews_sponsored_card_colors', array(
		'tint'   => '#fbf4e4',
		'accent' => '#c9951f',
	) );

	$css = '
.jeg_postblock:has(.jnews-sponsored) .jeg_block_container,.jeg_postblock:has(.jnews-sponsored) .jeg_posts_wrap{overflow:visible}
.jeg_post.jnews-sponsored{position:relative;z-index:0}
.jeg_post.jnews-sponsored::before{content:"";position:absolute;z-index:-1;top:-40px;right:-12px;bottom:-12px;left:-12px;background:' . $c['tint'] . ';border-radius:4px}
.jeg_postblock_22 .jeg_post.jnews-sponsored::before{right:18px}
.jeg_postblock_22.jeg_col_1o3 .jeg_post.jnews-sponsored::before{right:8px}
.jeg_post.jnews-sponsored .jeg_post_category,.jeg_post.jnews-sponsored .jeg_meta_date{display:none}
.jeg_post.jnews-sponsored .jeg_sponsor_line{position:absolute;top:-28px;left:0;right:30px;display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:11px;line-height:1;white-space:nowrap}
.jeg_post.jnews-sponsored .jeg_sponsor_tag{font-weight:600;letter-spacing:2px;text-transform:uppercase;color:' . $c['accent'] . '}
.jeg_post.jnews-sponsored .jeg_sponsor_tag .fa{font-size:10px;margin-right:2px}
.jeg_post.jnews-sponsored .jeg_sponsor_by{color:#6b6b6b;overflow:hidden;text-overflow:ellipsis}
.jeg_post.jnews-sponsored .jeg_sponsor_by strong{color:#111}
@media (max-width:767px){
.jeg_post.jnews-sponsored{padding:36px 12px 12px!important;box-sizing:border-box;border-bottom:0!important}
.jeg_post.jnews-sponsored::before{top:0;right:0;bottom:0;left:0;border-radius:0}
.jeg_post.jnews-sponsored .jeg_sponsor_line{top:12px;left:12px;right:12px}
.jeg_post.jnews-sponsored .jeg_sponsor_by{line-height:12px}
.jeg_post.jnews-sponsored .jeg_postblock_content{overflow:hidden}
}
';
	wp_add_inline_style( 'jnews-style', $css );
}
add_action( 'wp_enqueue_scripts', 'jnews_sponsored_card_css', 99 );