// version-loader.js
(function () {
    const version = '20250430';

    const bustUrl = (url) => {
        if (!url || url.startsWith('data:') || url.startsWith('http')) return url;
        const [base] = url.split('?');
        const sep = base.includes('?') ? '&' : '?';
        return `${base}${sep}v=${version}`;
    };

    window.addEventListener('DOMContentLoaded', () => {
        // CSS
        document.querySelectorAll('link[rel="stylesheet"]').forEach(link => {
            link.href = bustUrl(link.href);
        });

        // JS（外部スクリプトはスキップ）
        const myScript = document.currentScript;
        document.querySelectorAll('script[src]').forEach(script => {
            if (script === myScript || script.src.startsWith('http')) return;

            const newScript = document.createElement('script');
            newScript.src = bustUrl(script.src);
            if (script.defer) newScript.defer = true;
            if (script.type) newScript.type = script.type;
            script.replaceWith(newScript);
        });

        // 画像・動画・その他 src 属性を持つ要素（外部は除外）
        document.querySelectorAll('img[src], video[src], source[src]').forEach(el => {
            if (!el.src.startsWith(location.origin)) return;
            el.src = bustUrl(el.src);
        });

        // preload / favicon など（必要あれば）
        document.querySelectorAll('link[rel="preload"], link[rel="icon"]').forEach(link => {
            if (!link.href.startsWith(location.origin)) return;
            link.href = bustUrl(link.href);
        });
    });
})();