<?php
/**
 * Orientation-based product categories and image behavior.
 * File: inc/orientation-images.php
 *
 * - Ensures product_cat terms "Landscape", "Portrait", "Square" exist.
 * - Automatically assigns one of these to products based on featured image ratio.
 * - Outputs small badges on archive and single product.
 * - Forces single product images to use full/original size.
 *
 * @package BongotoWooCommerce
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * -------------------------------------------------------------------------
 * 0) Config (thresholds)
 * -------------------------------------------------------------------------
 * ratio > BONGOTO_WOOCOMMERCE_ORIENT_LANDSCAPE_MIN => Landscape
 * ratio < BONGOTO_WOOCOMMERCE_ORIENT_PORTRAIT_MAX  => Portrait
 * else                                             => Square
 */
if ( ! defined( 'BONGOTO_WOOCOMMERCE_ORIENT_LANDSCAPE_MIN' ) ) {
	define( 'BONGOTO_WOOCOMMERCE_ORIENT_LANDSCAPE_MIN', 1.10 );
}
if ( ! defined( 'BONGOTO_WOOCOMMERCE_ORIENT_PORTRAIT_MAX' ) ) {
	define( 'BONGOTO_WOOCOMMERCE_ORIENT_PORTRAIT_MAX', 0.90 );
}

/* Back-compat: old constant names, if something external still uses them. */
if ( ! defined( 'BM_ORIENT_LANDSCAPE_MIN' ) ) {
	define( 'BM_ORIENT_LANDSCAPE_MIN', BONGOTO_WOOCOMMERCE_ORIENT_LANDSCAPE_MIN );
}
if ( ! defined( 'BM_ORIENT_PORTRAIT_MAX' ) ) {
	define( 'BM_ORIENT_PORTRAIT_MAX', BONGOTO_WOOCOMMERCE_ORIENT_PORTRAIT_MAX );
}

/**
 * -------------------------------------------------------------------------
 * 1) Ensure product_cat terms exist
 * -------------------------------------------------------------------------
 */
add_action(
	'init',
	function () {
		$cats = array( 'Landscape', 'Portrait', 'Square' );

		foreach ( $cats as $name ) {
			if ( ! term_exists( $name, 'product_cat' ) ) {
				wp_insert_term(
					$name,
					'product_cat',
					array(
						'slug'        => sanitize_title( $name ),
						/* translators: product category description for auto orientation terms. */
						'description' => __( 'Auto-assigned by image orientation', 'bongoto-woocommerce' ),
					)
				);
			}
		}
	}
);

/**
 * -------------------------------------------------------------------------
 * 2) Detect orientation from an attachment id (helper)
 * -------------------------------------------------------------------------
 *
 * @param int $attachment_id Attachment ID.
 * @return string|null 'Landscape'|'Portrait'|'Square' or null on failure.
 */
function bongoto_woocommerce_detect_orientation_from_attachment( $attachment_id ) : ?string {
	if ( ! $attachment_id ) {
		return null;
	}

	$meta = wp_get_attachment_metadata( $attachment_id );

	if ( is_array( $meta ) && ! empty( $meta['width'] ) && ! empty( $meta['height'] ) ) {
		$w = (float) $meta['width'];
		$h = (float) $meta['height'];
	} else {
		$file = get_attached_file( $attachment_id );
		if ( ! $file || ! file_exists( $file ) ) {
			return null;
		}

		$size = @getimagesize( $file ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
		if ( ! $size || empty( $size[0] ) || empty( $size[1] ) ) {
			return null;
		}

		$w = (float) $size[0];
		$h = (float) $size[1];
	}

	if ( $w <= 0 || $h <= 0 ) {
		return null;
	}

	$ratio = $w / $h;

	if ( $ratio > BONGOTO_WOOCOMMERCE_ORIENT_LANDSCAPE_MIN ) {
		return 'Landscape';
	}
	if ( $ratio < BONGOTO_WOOCOMMERCE_ORIENT_PORTRAIT_MAX ) {
		return 'Portrait';
	}

	return 'Square';
}

/**
 * -------------------------------------------------------------------------
 * 3) Assign orientation category to a product (core function)
 * -------------------------------------------------------------------------
 *
 * @param int $product_id Product ID.
 */
function bongoto_woocommerce_set_product_orientation_term( $product_id ) : void {
	if ( get_post_type( $product_id ) !== 'product' ) {
		return;
	}

	$thumb_id = get_post_thumbnail_id( $product_id );
	if ( ! $thumb_id ) {
		return;
	}

	$term_name = bongoto_woocommerce_detect_orientation_from_attachment( $thumb_id );
	if ( ! $term_name ) {
		return;
	}

	$term_obj = get_term_by( 'name', $term_name, 'product_cat' );
	if ( ! $term_obj ) {
		return;
	}

	// Remove existing orientation terms, keep others.
	$orientation_ids = array_filter(
		array(
			( get_term_by( 'name', 'Landscape', 'product_cat' ) ) ? get_term_by( 'name', 'Landscape', 'product_cat' )->term_id : 0,
			( get_term_by( 'name', 'Portrait', 'product_cat' ) ) ? get_term_by( 'name', 'Portrait', 'product_cat' )->term_id : 0,
			( get_term_by( 'name', 'Square', 'product_cat' ) ) ? get_term_by( 'name', 'Square', 'product_cat' )->term_id : 0,
		)
	);

	$current_ids = wp_get_post_terms(
		$product_id,
		'product_cat',
		array( 'fields' => 'ids' )
	);

	$new_ids   = array_diff( (array) $current_ids, $orientation_ids );
	$new_ids[] = (int) $term_obj->term_id;

	wp_set_post_terms( $product_id, $new_ids, 'product_cat', false );

	// Store orientation meta for easier display/filtering later.
	// Keep old key for back-compat with any existing content.
	update_post_meta( $product_id, '_bm_orientation', $term_name );
}

/**
 * -------------------------------------------------------------------------
 * 4) Hooks — save & when thumbnail changes
 * -------------------------------------------------------------------------
 */
add_action(
	'save_post_product',
	function ( $post_id ) {
		if ( wp_is_post_revision( $post_id ) || wp_is_post_autosave( $post_id ) ) {
			return;
		}
		bongoto_woocommerce_set_product_orientation_term( $post_id );
	},
	20
);

add_action(
	'woocommerce_process_product_meta',
	function ( $post_id ) {
		bongoto_woocommerce_set_product_orientation_term( $post_id );
	},
	20
);

// Re-assign orientation when thumbnail meta changes.
add_action(
	'updated_post_meta',
	function ( $meta_id, $post_id, $meta_key, $meta_value ) { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found
		if ( '_thumbnail_id' === $meta_key && 'product' === get_post_type( $post_id ) ) {
			bongoto_woocommerce_set_product_orientation_term( $post_id );
		}
	},
	10,
	4
);

/**
 * -------------------------------------------------------------------------
 * 5) Badges — archive + single
 * -------------------------------------------------------------------------
 */
add_action(
	'woocommerce_before_shop_loop_item_title',
	function () {
		global $product;

		if ( ! $product instanceof WC_Product ) {
			return;
		}

		$badge = '';

		if ( has_term( 'Landscape', 'product_cat', $product->get_id() ) ) {
			$badge = 'Landscape';
		} elseif ( has_term( 'Portrait', 'product_cat', $product->get_id() ) ) {
			$badge = 'Portrait';
		} elseif ( has_term( 'Square', 'product_cat', $product->get_id() ) ) {
			$badge = 'Square';
		}

		if ( $badge ) {
			$badge_label = __( $badge, 'bongoto-woocommerce' );
			printf(
				'<span class="bm-orient-badge bm-orient-%1$s">%2$s</span>',
				esc_attr( strtolower( $badge ) ),
				esc_html( $badge_label )
			);
		}
	},
	5
);

add_action(
	'woocommerce_single_product_summary',
	function () {
		global $product;

		if ( ! $product instanceof WC_Product ) {
			return;
		}

		$badge = get_post_meta( $product->get_id(), '_bm_orientation', true );

		if ( ! $badge ) {
			if ( has_term( 'Landscape', 'product_cat', $product->get_id() ) ) {
				$badge = 'Landscape';
			} elseif ( has_term( 'Portrait', 'product_cat', $product->get_id() ) ) {
				$badge = 'Portrait';
			} elseif ( has_term( 'Square', 'product_cat', $product->get_id() ) ) {
				$badge = 'Square';
			}
		}

		if ( $badge ) {
			$badge_label = __( $badge, 'bongoto-woocommerce' );
			printf(
				'<div class="bm-orient-wrap"><span class="bm-orient-badge bm-orient-%1$s">%2$s</span></div>',
				esc_attr( strtolower( $badge ) ),
				esc_html( $badge_label )
			);
		}
	},
	6
);

/**
 * -------------------------------------------------------------------------
 * 6) Single product image: use FULL/original size only
 *     (Shop/archive remain unchanged)
 * -------------------------------------------------------------------------
 */
add_filter(
	'woocommerce_get_image_size_single',
	function ( $size ) { // phpcs:ignore Generic.CodeAnalysis.UnusedFunctionParameter.Found
		// Large width, height 0, crop false → keep aspect ratio, use full image.
		return array(
			'width'  => 9999,
			'height' => 0,
			'crop'   => false,
		);
	},
	99
);

add_filter(
	'woocommerce_gallery_image_size',
	function () {
		return 'full';
	},
	99
);

add_filter(
	'woocommerce_product_thumbnails_large_size',
	function () {
		return 'full';
	},
	99
);