import { type CSSProperties, forwardRef } from "react";
import { cn } from "@/lib/cn";
import { getStaticImage } from "@/utils/assets";
import styles from "./ImageButton.module.css";
import type { ImageButtonProps } from "./ImageButton.types";

// 静态资源 key vs 外部 URL 的解析；未命中时回退原样交给 <img>
function resolveImage(src: string): string {
	return /^(https?:|data:|blob:)/.test(src) ? src : getStaticImage(src) || src;
}

export const ImageButton = forwardRef<HTMLButtonElement, ImageButtonProps>(
	(
		{
			src,
			alt = "",
			width,
			height,
			hoverScale = 1.05,
			pressScale = 0.95,
			className,
			style,
			...rest
		},
		ref,
	) => {
		const imageSrc = resolveImage(src);
		// hover/按下缩放由 CSS 过渡实现，倍率通过内联变量传入（见 ImageButton.module.css）
		const scaleVars = {
			"--hover-scale": hoverScale,
			"--press-scale": pressScale,
		} as CSSProperties;

		return (
			<button
				ref={ref}
				type="button"
				className={cn(styles.button, className)}
				style={{ ...scaleVars, width, height, ...style }}
				{...rest}
			>
				<img
					src={imageSrc}
					alt={alt}
					className={styles.image}
					draggable={false}
				/>
			</button>
		);
	},
);

ImageButton.displayName = "ImageButton";