<?php
namespace Extendiment\Swatchline;

defined( 'ABSPATH' ) || exit;

/**
 * The store-wide display settings (WooCommerce → Settings → Products → Swatches), each stored in
 * its own `swatchline_*` option as WooCommerce's settings API saves them.
 */
class Settings {

	const SHAPES       = array( 'circle', 'rounded', 'square' );
	const LABEL_STYLES = array( 'outline', 'filled' );

	/** @return array<string, string> option => default */
	public static function defaults(): array {
		return array(
			'swatchline_shape'             => 'circle',
			'swatchline_size'              => '36',
			'swatchline_label_style'       => 'outline',
			'swatchline_tooltip'           => 'yes',
			'swatchline_tooltip_image'     => 'yes',
			'swatchline_show_selected'     => 'yes',
			'swatchline_custom_attributes' => 'no',
		);
	}

	private static function raw( string $option ): string {
		$defaults = self::defaults();
		$value    = get_option( $option, $defaults[ $option ] ?? '' );
		return is_scalar( $value ) ? (string) $value : (string) ( $defaults[ $option ] ?? '' );
	}

	public static function shape(): string {
		$shape = self::raw( 'swatchline_shape' );
		return in_array( $shape, self::SHAPES, true ) ? $shape : 'circle';
	}

	/** The colour and image swatch size on the product page, in pixels (16–96). */
	public static function size(): int {
		return self::clamp( (int) self::raw( 'swatchline_size' ), 16, 96, 36 );
	}

	public static function label_style(): string {
		$style = self::raw( 'swatchline_label_style' );
		return in_array( $style, self::LABEL_STYLES, true ) ? $style : 'outline';
	}

	public static function tooltip(): bool {
		return 'no' !== self::raw( 'swatchline_tooltip' );
	}

	public static function tooltip_image(): bool {
		return self::tooltip() && 'no' !== self::raw( 'swatchline_tooltip_image' );
	}

	public static function show_selected(): bool {
		return 'no' !== self::raw( 'swatchline_show_selected' );
	}

	/** Whether custom (product-level) attributes show as label swatches rather than dropdowns. */
	public static function custom_attributes(): bool {
		return 'yes' === self::raw( 'swatchline_custom_attributes' );
	}

	public static function clamp( int $value, int $min, int $max, int $fallback ): int {
		if ( $value <= 0 ) {
			return $fallback;
		}
		return max( $min, min( $max, $value ) );
	}
}