<?php
/**
 * Shared admin layer: assets, icons and data for scripts.
 *
 * @package BeariusCalendar
 */

defined( 'ABSPATH' ) || exit;

/**
 * Which calendar admin screen is open.
 *
 * @param string $hook Admin page hook.
 * @return string settings|event|list|term|other|''
 */
function bcal_admin_screen( $hook = '' ) {
	$screen = function_exists( 'get_current_screen' ) ? get_current_screen() : null;
	if ( ! $screen ) {
		return '';
	}
	if ( false !== strpos( (string) $hook, 'bcal-settings' ) || ( isset( $screen->id ) && false !== strpos( (string) $screen->id, 'bcal-settings' ) ) ) {
		return 'settings';
	}
	if ( BCAL_PT === $screen->post_type && 'post' === $screen->base ) {
		return 'event';
	}
	if ( BCAL_PT === $screen->post_type && 'edit' === $screen->base ) {
		return 'list';
	}
	if ( in_array( $screen->taxonomy, array( 'bcal_venue', 'bcal_city', 'bcal_organizer', 'bcal_category' ), true ) ) {
		return 'term';
	}
	if ( BCAL_PT === $screen->post_type || false !== strpos( (string) $hook, 'bcal' ) ) {
		return 'other';
	}
	return '';
}

/**
 * Plural forms of a translated string for the Intl.PluralRules categories
 * used by JavaScript (one, few, many, other).
 *
 * @param array $nooped Result of _n_noop().
 * @return array
 */
function bcal_js_plural( $nooped ) {
	return array(
		'one'   => translate_nooped_plural( $nooped, 1, 'bearius-calendar' ),
		'few'   => translate_nooped_plural( $nooped, 2, 'bearius-calendar' ),
		'many'  => translate_nooped_plural( $nooped, 5, 'bearius-calendar' ),
		'other' => translate_nooped_plural( $nooped, 5, 'bearius-calendar' ),
	);
}

add_action(
	'admin_enqueue_scripts',
	function ( $hook ) {
		$screen = bcal_admin_screen( $hook );
		if ( '' === $screen ) {
			return;
		}

		wp_enqueue_style( 'bcal-admin', BCAL_URL . 'assets/css/admin.css', array(), BCAL_VERSION );
		wp_enqueue_script( 'bcal-admin', BCAL_URL . 'assets/js/admin.js', array(), BCAL_VERSION, true );
		if ( 'settings' === $screen ) {
			wp_enqueue_media();
		}

		// The settings preview uses the real front-end stylesheet.
		if ( 'settings' === $screen ) {
			wp_enqueue_style( 'bcal', BCAL_URL . 'assets/css/calendar.css', array(), BCAL_VERSION );
		}

		$weekdays = array();
		$monday   = new DateTimeImmutable( '2024-01-01 12:00:00', wp_timezone() );
		for ( $i = 1; $i <= 7; $i++ ) {
			$weekdays[ $i ] = wp_date( 'D', $monday->modify( '+' . ( $i - 1 ) . ' days' )->getTimestamp() );
		}

		$presets = array();
		foreach ( bcal_palettes() as $key => $preset ) {
			$colors = array();
			foreach ( bcal_palette_keys() as $color_key ) {
				$colors[ $color_key ] = isset( $preset[ $color_key ] ) ? $preset[ $color_key ] : '';
			}
			$presets[ $key ] = $colors;
		}

		$time_format  = (string) get_option( 'time_format' );
		$theme_colors = array();
		if ( 'settings' === $screen ) {
			foreach ( bcal_theme_palette() as $slug => $color ) {
				$theme_colors[ $slug ] = $color['hex'];
			}
		}

		wp_localize_script(
			'bcal-admin',
			'bcalAdmin',
			array(
				'ajax'     => admin_url( 'admin-ajax.php' ),
				'nonce'    => wp_create_nonce( 'bcal_admin' ),
				'screen'   => $screen,
				'duration' => bcal_default_duration(),
				'locale'   => str_replace( '_', '-', get_user_locale() ),
				'hour12'   => (bool) preg_match( '/[aAgh]/', $time_format ),
				'weekdays' => $weekdays,
				'phrases'  => function_exists( 'bcal_weekday_phrases' ) ? bcal_weekday_phrases() : array(),
				'presets'     => $presets,
				'themeColors' => (object) $theme_colors,
				'units'    => array(
					'daily'   => bcal_js_plural( _n_noop( 'day', 'days', 'bearius-calendar' ) ),
					'weekly'  => bcal_js_plural( _n_noop( 'week', 'weeks', 'bearius-calendar' ) ),
					'monthly' => bcal_js_plural( _n_noop( 'month', 'months', 'bearius-calendar' ) ),
					'yearly'  => bcal_js_plural( _n_noop( 'year', 'years', 'bearius-calendar' ) ),
					/* translators: %d: number of repetitions */
					'times'   => bcal_js_plural( _n_noop( '%d time', '%d times', 'bearius-calendar' ) ),
					/* translators: %d: number of events */
					'events'  => bcal_js_plural( _n_noop( '%d event', '%d events', 'bearius-calendar' ) ),
				),
				'i18n'     => array(
					'working'     => __( 'Rebuilding…', 'bearius-calendar' ),
					/* translators: 1: processed events, 2: total events */
					'progress'    => __( 'Processed %1$d of %2$d events', 'bearius-calendar' ),
					'done'        => __( 'Done. The index is up to date.', 'bearius-calendar' ),
					'error'       => __( 'Something went wrong. Try again.', 'bearius-calendar' ),
					'unsaved'     => __( 'Unsaved changes', 'bearius-calendar' ),
					'leave'       => __( 'You have unsaved changes. Leave anyway?', 'bearius-calendar' ),
					'copied'      => __( 'Copied', 'bearius-calendar' ),
					'adjusted'    => __( 'Adjusted for readability', 'bearius-calendar' ),
					'tooWeak'     => __( 'Low contrast', 'bearius-calendar' ),
					'checkText'   => __( 'Text', 'bearius-calendar' ),
					'checkMuted'  => __( 'Secondary text', 'bearius-calendar' ),
					'checkAccent' => __( 'Accent used as text', 'bearius-calendar' ),
					'checkButton' => __( 'Text on buttons', 'bearius-calendar' ),
					/* translators: 1: time, 2: duration such as "45 min" */
					'autoEnd'     => __( 'Ends automatically at %1$s (%2$s)', 'bearius-calendar' ),
					/* translators: %s: duration such as "45 min" */
					'autoEndWait' => __( 'Ends automatically %s after the start', 'bearius-calendar' ),
					'minutes'     => _x( 'min', 'minutes, short', 'bearius-calendar' ),
					'hours'       => _x( 'h', 'hours, short', 'bearius-calendar' ),
					/* translators: %s: interval such as "week" or "2 weeks" */
					'every'       => __( 'Every %s', 'bearius-calendar' ),
					/* translators: 1: "Every week", 2: list of weekdays */
					'onDays'      => __( '%1$s (%2$s)', 'bearius-calendar' ),
					/* translators: 1: "Every month", 2: day of the month */
					'onDay'       => __( '%1$s, on day %2$d', 'bearius-calendar' ),
					/* translators: %s: date */
					'until'       => __( 'until %s', 'bearius-calendar' ),
					'noRepeat'    => __( 'Single date', 'bearius-calendar' ),
					'removeDate'  => __( 'Remove date', 'bearius-calendar' ),
					'searching'   => __( 'Searching…', 'bearius-calendar' ),
					'noResults'   => __( 'Nothing found', 'bearius-calendar' ),
					/* translators: %s: typed name */
					'create'      => __( 'Add "%s"', 'bearius-calendar' ),
					'createNew'   => __( 'Add new', 'bearius-calendar' ),
					'saving'      => __( 'Saving…', 'bearius-calendar' ),
					'nameNeeded'  => __( 'Enter a name.', 'bearius-calendar' ),
					'existing'    => __( 'Already in the list, selected it.', 'bearius-calendar' ),
					/* translators: %d: day of the month */
					'dayOfMonth'  => __( 'Day %d of the month', 'bearius-calendar' ),
					/* translators: 1: "Every month", 2: "on the 3rd Thursday" or a date */
					'onDate'      => __( '%1$s, %2$s', 'bearius-calendar' ),
					/* translators: %d: number of additional dates */
					'plusDates'   => __( '+ %d additional dates', 'bearius-calendar' ),
					'customRule'  => __( 'Repeats by a rule from another calendar', 'bearius-calendar' ),
					'rightsNeed'  => __( 'Confirm that you have the right to publish these images, or turn off image downloads.', 'bearius-calendar' ),
					'sourceNeed'  => __( 'Enter a calendar address or choose a file.', 'bearius-calendar' ),
				),
			)
		);
	}
);

/**
 * Admin interface icons (stroke, 20px).
 *
 * @param string $name Icon name.
 * @return string
 */
function bcal_admin_icon( $name ) {
	$paths = array(
		'general'    => '<path d="M4 6h16M4 12h16M4 18h10"/>',
		'appearance' => '<circle cx="12" cy="12" r="8.5"/><path d="M12 3.5a8.5 8.5 0 0 0 0 17c1.4 0 2-1 1.6-2.1-.5-1.2.3-2.4 1.6-2.4h1.6A3.7 3.7 0 0 0 20.5 12 8.5 8.5 0 0 0 12 3.5z"/><circle cx="8" cy="11" r="1"/><circle cx="12" cy="7.5" r="1"/><circle cx="16" cy="10" r="1"/>',
		'single'     => '<rect x="4" y="3.5" width="16" height="17" rx="2"/><path d="M8 8h8M8 12h8M8 16h5"/>',
		'notice'     => '<path d="M4 5.5h16v10H9l-5 4z"/>',
		'advanced'   => '<path d="M12 8.5a3.5 3.5 0 1 0 0 7 3.5 3.5 0 0 0 0-7z"/><path d="M19 12a7 7 0 0 0-.1-1.2l2-1.5-2-3.4-2.3.9a7 7 0 0 0-2-1.2L14.2 3h-4.4l-.4 2.6a7 7 0 0 0-2 1.2l-2.3-.9-2 3.4 2 1.5a7 7 0 0 0 0 2.4l-2 1.5 2 3.4 2.3-.9a7 7 0 0 0 2 1.2l.4 2.6h4.4l.4-2.6a7 7 0 0 0 2-1.2l2.3.9 2-3.4-2-1.5c.1-.4.1-.8.1-1.2z"/>',
		'tools'      => '<path d="M14.5 6.5a4 4 0 0 0-5.3 5.3L4 17v3h3l5.2-5.2a4 4 0 0 0 5.3-5.3l-2.5 2.5-2.5-2.5z"/>',
		'when'       => '<rect x="3.5" y="5" width="17" height="15.5" rx="2"/><path d="M3.5 10h17M8 3v4M16 3v4"/>',
		'place'      => '<path d="M12 21s-7-6.2-7-11.5A7 7 0 0 1 19 9.5C19 14.8 12 21 12 21z"/><circle cx="12" cy="9.5" r="2.5"/>',
		'tickets'    => '<path d="M3 8.5a2 2 0 0 0 0 4V17h18v-4.5a2 2 0 0 0 0-4V4H3z"/><path d="M14 4v13" stroke-dasharray="2 2"/>',
		'options'    => '<path d="M5 7h9M18 7h1M5 17h1M10 17h9"/><circle cx="16" cy="7" r="2"/><circle cx="8" cy="17" r="2"/>',
		'check'      => '<path d="M5 12.5l4.5 4.5L19 7.5"/>',
		'alert'      => '<path d="M12 4l9 16H3z"/><path d="M12 10v4M12 17h.01"/>',
		'close'      => '<path d="M6 6l12 12M18 6L6 18"/>',
		'plus'       => '<path d="M12 5v14M5 12h14"/>',
		'external'   => '<path d="M14 4h6v6M20 4l-9 9"/><path d="M18 14v5a1 1 0 0 1-1 1H5a1 1 0 0 1-1-1V7a1 1 0 0 1 1-1h5"/>',
		'copy'       => '<rect x="9" y="9" width="11" height="11" rx="2"/><path d="M5 15V5a1 1 0 0 1 1-1h9"/>',
		'repeat'     => '<path d="M17 2l3 3-3 3"/><path d="M4 11V9a4 4 0 0 1 4-4h12"/><path d="M7 22l-3-3 3-3"/><path d="M20 13v2a4 4 0 0 1-4 4H4"/>',
		'star'       => '<path d="M12 3.5l2.6 5.4 5.9.8-4.3 4.1 1 5.8L12 16.9l-5.2 2.7 1-5.8-4.3-4.1 5.9-.8z"/>',
		'search'     => '<circle cx="11" cy="11" r="6.5"/><path d="M20 20l-4.3-4.3"/>',
		'sun'        => '<circle cx="12" cy="12" r="4"/><path d="M12 2.5v2M12 19.5v2M2.5 12h2M19.5 12h2M5.3 5.3l1.4 1.4M17.3 17.3l1.4 1.4M5.3 18.7l1.4-1.4M17.3 6.7l1.4-1.4"/>',
		'moon'       => '<path d="M20 14.5A8 8 0 0 1 9.5 4a8 8 0 1 0 10.5 10.5z"/>',
		'city'       => '<path d="M3.5 20.5h17M5.5 20.5V9l5-3v14.5M10.5 20.5V4.5l8 3v13"/><path d="M13.5 10h2M13.5 13.5h2M13.5 17h2M7.5 12h1M7.5 15.5h1"/>',
		'person'     => '<circle cx="12" cy="8" r="3.5"/><path d="M5 20a7 7 0 0 1 14 0"/>',
		'import'     => '<path d="M12 3.5v11M7.5 10l4.5 4.5 4.5-4.5"/><path d="M4 15.5v3a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2v-3"/>',
		'feed'       => '<path d="M5 5a14 14 0 0 1 14 14M5 11a8 8 0 0 1 8 8"/><circle cx="6" cy="18" r="1.5"/>',
		'undo'       => '<path d="M8 5L4 9l4 4"/><path d="M4 9h10a6 6 0 0 1 0 12h-3"/>',
		'pause'      => '<path d="M9 5v14M15 5v14"/>',
		'play'       => '<path d="M7 4.5v15l12-7.5z"/>',
		'image'      => '<rect x="3.5" y="4.5" width="17" height="15" rx="2"/><circle cx="9" cy="10" r="1.8"/><path d="M20.5 16l-5-5-8.5 8.5"/>',
		'shield'     => '<path d="M12 3l7.5 3v5.5c0 4.5-3.2 8.2-7.5 9.5-4.3-1.3-7.5-5-7.5-9.5V6z"/><path d="M9 12l2 2 4-4"/>',
		'trash'      => '<path d="M4.5 7h15M10 7V4.5h4V7M6.5 7l1 13h9l1-13"/>',
	);
	if ( ! isset( $paths[ $name ] ) ) {
		return '';
	}
	return '<svg class="bcal-ai" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true" focusable="false">' . $paths[ $name ] . '</svg>';
}

/**
 * Calendar mark: a small date tile with today's day, used as the logo.
 *
 * @param string $datetime Optional local date to show.
 * @return string
 */
function bcal_admin_mark( $datetime = '' ) {
	$ts = $datetime ? bcal_ts( $datetime ) : time();
	return '<span class="bcal-mark" aria-hidden="true"><span class="bcal-mark__month">' . esc_html( wp_date( 'M', $ts ) ) . '</span><span class="bcal-mark__day">' . esc_html( wp_date( 'j', $ts ) ) . '</span></span>';
}