<?php
/**
 * Personalizador: colores, tipografías, cabecera, contacto, portada y pie.
 *
 * Todas las opciones se definen en ga_customizer_registry(). Los textos marcados
 * como 'i18n' se guardan dos veces: en castellano (clave) y en euskera (clave + '_eu').
 */

defined( 'ABSPATH' ) || exit;

require_once __DIR__ . '/registry.php';

/** Color efectivo: el de la paleta elegida o, si es «Personalizada», el elegido a mano. */
function ga_color( $key ) {
	$palette  = ga_opt( 'colors', 'palette' );
	$palettes = ga_palettes();
	if ( isset( $palettes[ $palette ][ $key ] ) ) {
		return $palettes[ $palette ][ $key ];
	}
	return ga_opt( 'colors', $key );
}

/** Clave del theme_mod para un campo (y un idioma). */
function ga_mod_key( $section, $field, $lang = 'es' ) {
	return "ga_{$section}_{$field}" . ( 'eu' === $lang ? '_eu' : '' );
}

/** Valor por defecto de un campo. */
function ga_field_default( $field, $lang = 'es' ) {
	if ( ! empty( $field['i18n'] ) ) {
		return $field[ $lang ] ?? '';
	}
	return $field['default'] ?? '';
}

/**
 * Valor de una opción. Los textos 'i18n' se devuelven en el idioma actual.
 */
function ga_opt( $section, $field ) {
	$registry = ga_customizer_registry();
	$def      = $registry[ $section ]['fields'][ $field ] ?? null;
	if ( ! $def ) {
		return '';
	}
	$lang = ! empty( $def['i18n'] ) ? ga_lang() : 'es';
	$key  = ga_mod_key( $section, $field, $lang );
	return get_theme_mod( $key, ga_field_default( $def, $lang ) );
}

/** Imprime un texto del personalizador escapado. */
function ga_opt_e( $section, $field ) {
	echo esc_html( ga_opt( $section, $field ) );
}

/** Secciones de portada visibles, ordenadas. */
function ga_home_sections() {
	$sections = array();
	foreach ( ga_customizer_registry() as $id => $section ) {
		if ( ! empty( $section['section'] ) && ga_opt( $id, 'show' ) ) {
			$sections[ $id ] = (int) ga_opt( $id, 'order' );
		}
	}
	asort( $sections );
	return array_keys( $sections );
}

/* Los datos de contacto y redes del personalizador sustituyen a los predeterminados. */
add_filter( 'ga_info', function ( $info ) {
	foreach ( array( 'direccion', 'maps', 'telefono', 'email', 'horario' ) as $key ) {
		$info[ $key ] = ga_opt( 'contact', $key );
	}
	foreach ( array( 'instagram', 'facebook', 'tiktok', 'youtube', 'whatsapp' ) as $key ) {
		$info[ $key ] = ga_opt( 'social', $key );
	}
	return $info;
} );

/* ---------- Registro en el personalizador ---------- */
add_action( 'customize_register', function ( WP_Customize_Manager $c ) {
	$c->add_panel( 'ga_design', array( 'title' => 'Diseño (Gure Ametsa)', 'priority' => 25 ) );
	$c->add_panel( 'ga_info', array( 'title' => 'Contacto y redes', 'priority' => 26 ) );
	$c->add_panel( 'ga_home', array(
		'title'       => 'Portada',
		'priority'    => 27,
		'description' => 'Muestra, oculta y reordena las secciones de la portada. Los textos se escriben en castellano y en euskera.',
	) );

	$sanitizers = array(
		'text'     => 'sanitize_text_field',
		'textarea' => 'sanitize_textarea_field',
		'url'      => 'esc_url_raw',
		'email'    => 'sanitize_email',
		'color'    => 'sanitize_hex_color',
		'checkbox' => fn( $v ) => (bool) $v,
		'number'   => 'absint',
		'range'    => 'absint',
		'image'    => 'absint',
		'video'    => 'absint',
	);

	foreach ( ga_customizer_registry() as $sid => $section ) {
		$section_id = "ga_section_$sid";
		$c->add_section( $section_id, array(
			'title'       => $section['title'],
			'panel'       => $section['panel'],
			'description' => $section['description'] ?? '',
		) );

		foreach ( $section['fields'] as $fid => $field ) {
			$langs = ! empty( $field['i18n'] ) ? array( 'es', 'eu' ) : array( 'es' );
			foreach ( $langs as $lang ) {
				$key      = ga_mod_key( $sid, $fid, $lang );
				$sanitize = $sanitizers[ $field['type'] ] ?? null;
				if ( 'select' === $field['type'] ) {
					$choices  = $field['choices'];
					$default  = $field['default'];
					$sanitize = fn( $v ) => array_key_exists( $v, $choices ) ? $v : $default;
				}
				$c->add_setting( $key, array(
					'default'           => ga_field_default( $field, $lang ),
					'sanitize_callback' => $sanitize,
				) );

				$label = $field['label'] . ( ! empty( $field['i18n'] ) ? ( 'eu' === $lang ? ' · EU' : ' · ES' ) : '' );
				$args  = array(
					'label'       => $label,
					'section'     => $section_id,
					'description' => $field['description'] ?? '',
					'priority'    => empty( $field['i18n'] ) ? 50 : ( 'eu' === $lang ? 200 : 100 ),
				);

				switch ( $field['type'] ) {
					case 'color':
						$c->add_control( new WP_Customize_Color_Control( $c, $key, $args ) );
						break;
					case 'image':
					case 'video':
						$c->add_control( new WP_Customize_Media_Control( $c, $key, $args + array( 'mime_type' => $field['type'] ) ) );
						break;
					case 'range':
					case 'number':
						$args['type']        = $field['type'];
						$args['input_attrs'] = array_filter( array(
							'min'  => $field['min'] ?? null,
							'max'  => $field['max'] ?? null,
							'step' => $field['step'] ?? 1,
						), fn( $v ) => null !== $v );
						if ( 'range' === $field['type'] ) {
							$args['description'] = trim( $args['description'] . ' Por defecto: ' . $field['default'] . '.' );
						}
						$c->add_control( $key, $args );
						break;
					case 'select':
						$c->add_control( $key, $args + array( 'type' => 'select', 'choices' => $field['choices'] ) );
						break;
					default:
						$c->add_control( $key, $args + array( 'type' => $field['type'] ) );
				}
			}
		}

		// Separador visual entre castellano y euskera.
		$has_i18n = (bool) array_filter( $section['fields'], fn( $f ) => ! empty( $f['i18n'] ) );
		if ( $has_i18n ) {
			foreach ( array( 'es' => array( 99, 'Castellano' ), 'eu' => array( 199, 'Euskara' ) ) as $lang => [ $priority, $title ] ) {
				$c->add_setting( "ga_sep_{$sid}_{$lang}", array( 'sanitize_callback' => '__return_empty_string' ) );
				$c->add_control( new GA_Customize_Heading_Control( $c, "ga_sep_{$sid}_{$lang}", array(
					'label'    => $title,
					'section'  => $section_id,
					'priority' => $priority,
				) ) );
			}
		}
	}
} );

add_action( 'customize_register', function () {
	if ( class_exists( 'GA_Customize_Heading_Control' ) ) {
		return;
	}
	/** Encabezado sin campo, para separar idiomas. */
	class GA_Customize_Heading_Control extends WP_Customize_Control {
		public $type = 'ga-heading';
		public function render_content() {
			printf(
				'<h3 style="margin:18px 0 4px;padding:6px 10px;background:#1e5b3e;color:#fff;border-radius:4px;font-size:13px;letter-spacing:.06em;text-transform:uppercase">%s</h3>',
				esc_html( $this->label )
			);
		}
	}
}, 1 );