<?php
/**
 * Shared weather condition keys: labels (translated), Meteocons icons,
 * day/night detection and localized calendar names.
 *
 * Icons are Meteocons (https://github.com/basmilius/meteocons), MIT license,
 * bundled under public/icons/flat/.
 *
 * @package FontdelboscEltemps
 */

defined( 'ABSPATH' ) || exit;

/**
 * Maps condition keys to translated labels, Meteocons icons and
 * localized calendar names.
 */
final class Fontdelbosc_Conditions {

	/**
	 * Condition key to Meteocons file names, indexed [ day, night ].
	 *
	 * @var array<string,array{0:string,1:string}>
	 */
	private const ICONS = array(
		'clear'              => array( 'clear-day.svg', 'clear-night.svg' ),
		'mainly_clear'       => array( 'clear-day.svg', 'clear-night.svg' ),
		'partly_cloudy'      => array( 'partly-cloudy-day.svg', 'partly-cloudy-night.svg' ),
		'cloudy'             => array( 'cloudy.svg', 'cloudy.svg' ),
		'overcast'           => array( 'overcast.svg', 'overcast.svg' ),
		'fog'                => array( 'fog-day.svg', 'fog-night.svg' ),
		'drizzle_light'      => array( 'drizzle.svg', 'drizzle.svg' ),
		'drizzle'            => array( 'drizzle.svg', 'drizzle.svg' ),
		'drizzle_heavy'      => array( 'drizzle.svg', 'drizzle.svg' ),
		'rain_light'         => array( 'overcast-rain.svg', 'overcast-rain.svg' ),
		'rain'               => array( 'rain.svg', 'rain.svg' ),
		'rain_heavy'         => array( 'extreme-rain.svg', 'extreme-rain.svg' ),
		'rain_showers_light' => array( 'partly-cloudy-day-rain.svg', 'partly-cloudy-night-rain.svg' ),
		'rain_showers'       => array( 'partly-cloudy-day-rain.svg', 'partly-cloudy-night-rain.svg' ),
		'rain_showers_heavy' => array( 'rain.svg', 'rain.svg' ),
		'snow_light'         => array( 'snow.svg', 'snow.svg' ),
		'snow'               => array( 'snow.svg', 'snow.svg' ),
		'snow_heavy'         => array( 'extreme-snow.svg', 'extreme-snow.svg' ),
		'thunderstorm'       => array( 'thunderstorms-day-rain.svg', 'thunderstorms-night-rain.svg' ),
		'thunderstorm_hail'  => array( 'thunderstorms-day-hail.svg', 'thunderstorms-night-hail.svg' ),
	);

	/**
	 * Returns the translated label for a condition key.
	 *
	 * @param string $key Condition key.
	 * @return string
	 */
	public static function label( string $key ): string {
		$labels = array(
			'clear'              => __( 'Clear sky', 'fontdelbosc-eltemps' ),
			'mainly_clear'       => __( 'Clear sky', 'fontdelbosc-eltemps' ),
			'partly_cloudy'      => __( 'Partly cloudy', 'fontdelbosc-eltemps' ),
			'cloudy'             => __( 'Cloudy', 'fontdelbosc-eltemps' ),
			'overcast'           => __( 'Overcast', 'fontdelbosc-eltemps' ),
			'fog'                => __( 'Fog', 'fontdelbosc-eltemps' ),
			'drizzle_light'      => __( 'Drizzle', 'fontdelbosc-eltemps' ),
			'drizzle'            => __( 'Drizzle', 'fontdelbosc-eltemps' ),
			'drizzle_heavy'      => __( 'Drizzle', 'fontdelbosc-eltemps' ),
			'rain_light'         => __( 'Rain', 'fontdelbosc-eltemps' ),
			'rain'               => __( 'Rain', 'fontdelbosc-eltemps' ),
			'rain_heavy'         => __( 'Rain', 'fontdelbosc-eltemps' ),
			'rain_showers_light' => __( 'Rain', 'fontdelbosc-eltemps' ),
			'rain_showers'       => __( 'Rain', 'fontdelbosc-eltemps' ),
			'rain_showers_heavy' => __( 'Rain', 'fontdelbosc-eltemps' ),
			'snow_light'         => __( 'Snow', 'fontdelbosc-eltemps' ),
			'snow'               => __( 'Snow', 'fontdelbosc-eltemps' ),
			'snow_heavy'         => __( 'Snow', 'fontdelbosc-eltemps' ),
			'thunderstorm'       => __( 'Thunderstorm', 'fontdelbosc-eltemps' ),
			'thunderstorm_hail'  => __( 'Thunderstorm', 'fontdelbosc-eltemps' ),
		);

		return $labels[ $key ] ?? $labels['cloudy'];
	}

	/**
	 * Returns the bundled Meteocons icon URL for a condition key.
	 *
	 * @param string $key   Condition key.
	 * @param bool   $night Whether the night variant should be used.
	 * @return string
	 */
	public static function icon( string $key, bool $night = false ): string {
		$files = self::ICONS[ $key ] ?? self::ICONS['cloudy'];

		return FONTDELBOSC_ELTEMPS_PLUGIN_URL . 'public/icons/flat/' . $files[ $night ? 1 : 0 ];
	}

	/**
	 * Rough day/night detection for icon selection.
	 *
	 * @param int $hour Local hour (0-23).
	 * @return bool True when night.
	 */
	public static function is_night( int $hour ): bool {
		return $hour < 7 || $hour >= 21;
	}

	/**
	 * Returns the translated weekday name for an ISO-8601 weekday number.
	 *
	 * @param int $number Weekday number (1 = Monday, 7 = Sunday).
	 * @return string
	 */
	public static function weekday( int $number ): string {
		$weekdays = array(
			1 => __( 'Monday', 'fontdelbosc-eltemps' ),
			2 => __( 'Tuesday', 'fontdelbosc-eltemps' ),
			3 => __( 'Wednesday', 'fontdelbosc-eltemps' ),
			4 => __( 'Thursday', 'fontdelbosc-eltemps' ),
			5 => __( 'Friday', 'fontdelbosc-eltemps' ),
			6 => __( 'Saturday', 'fontdelbosc-eltemps' ),
			7 => __( 'Sunday', 'fontdelbosc-eltemps' ),
		);

		return $weekdays[ $number ] ?? '';
	}

	/**
	 * Returns the translated month name for a month number.
	 *
	 * @param int $number Month number (1-12).
	 * @return string
	 */
	public static function month( int $number ): string {
		$months = array(
			1  => __( 'January', 'fontdelbosc-eltemps' ),
			2  => __( 'February', 'fontdelbosc-eltemps' ),
			3  => __( 'March', 'fontdelbosc-eltemps' ),
			4  => __( 'April', 'fontdelbosc-eltemps' ),
			5  => __( 'May', 'fontdelbosc-eltemps' ),
			6  => __( 'June', 'fontdelbosc-eltemps' ),
			7  => __( 'July', 'fontdelbosc-eltemps' ),
			8  => __( 'August', 'fontdelbosc-eltemps' ),
			9  => __( 'September', 'fontdelbosc-eltemps' ),
			10 => __( 'October', 'fontdelbosc-eltemps' ),
			11 => __( 'November', 'fontdelbosc-eltemps' ),
			12 => __( 'December', 'fontdelbosc-eltemps' ),
		);

		return $months[ $number ] ?? '';
	}
}