// import React, { useState, useEffect } from 'react';
// import CodeBlock from '@theme/CodeBlock';
// import Icon from '@site/src/components/Icon';


// const CodeEmbed = ({ src }) => {
//     const [code, setCode] = useState('');
//     const [loading, setLoading] = useState(true);
//     const [error, setError] = useState(null);

//     useEffect(() => {
//         let isMounted = true;

//         const fetchCodeFromUrl = async (url) => {
//             if (!isMounted) return;

//             setLoading(true);
//             setError(null);

//             try {
//                 const response = await fetch(url);
//                 if (!response.ok) {
//                     throw new Error(`HTTP error! status: ${response.status}`);
//                 }
//                 const data = await response.text();
//                 if (isMounted) {
//                     setCode(data);
//                 }
//             } catch (err) {
//                 console.error('Failed to fetch code:', err);
//                 if (isMounted) {
//                     setError(err);
//                     setCode(`// Failed to load code from ${url}\n// ${err.message}`);
//                 }
//             } finally {
//                 if (isMounted) {
//                     setLoading(false);
//                 }
//             }
//         };

//         if (src) {
//             fetchCodeFromUrl(src);
//         }

//         return () => {
//             isMounted = false;
//         };
//     }, [src]);

//     const githubUrl = src ? src.replace('https://raw.githubusercontent.com', 'https://github.com').replace('/refs/heads/', '/blob/') : null;
//     const fileName = src ? src.substring(src.lastIndexOf('/') + 1) : null;

//     return (
//         loading ? (
//             <div>Loading code...</div>
//         ) : error ? (
//             <div>Error: {error.message}</div>
//         ) : (
//             <div style={{ backgroundColor: 'transparent', padding: '0px', borderRadius: '5px' }}>
//                 <div style={{ textAlign: 'right' }}>
//                     {githubUrl && (
//                         <a href={githubUrl} target="_blank" rel="noopener noreferrer" style={{ paddingRight: '15px', color: 'gray', fontSize: '0.8em', fontStyle: 'italic', display: 'inline-flex', alignItems: 'center' }}>
//                             View on GitHub
//                             <Icon icon="mdi:github" height="48" />
//                         </a>
//                     )}
//                 </div>
//                 <CodeBlock title={fileName} className="language-java">{code}</CodeBlock>
//             </div>
//         )
//     );
// };

// export default CodeEmbed;
import React, { useState, useEffect } from 'react';
import CodeBlock from '@theme/CodeBlock';
import Icon from '@site/src/components/Icon';


const CodeEmbed = ({ src }) => {
    const [code, setCode] = useState('');
    const [loading, setLoading] = useState(true);
    const [error, setError] = useState(null);

    useEffect(() => {
        let isMounted = true;

        const fetchCodeFromUrl = async (url) => {
            if (!isMounted) return;

            setLoading(true);
            setError(null);

            try {
                const response = await fetch(url);
                if (!response.ok) {
                    throw new Error(`HTTP error! status: ${response.status}`);
                }
                const data = await response.text();
                if (isMounted) {
                    setCode(data);
                }
            } catch (err) {
                console.error('Failed to fetch code:', err);
                if (isMounted) {
                    setError(err);
                    setCode(`// Failed to load code from ${url}\n// ${err.message}`);
                }
            } finally {
                if (isMounted) {
                    setLoading(false);
                }
            }
        };

        if (src) {
            fetchCodeFromUrl(src);
        }

        return () => {
            isMounted = false;
        };
    }, [src]);

    const githubUrl = src ? src.replace('https://raw.githubusercontent.com', 'https://github.com').replace('/refs/heads/', '/blob/') : null;
    const fileName = src ? src.substring(src.lastIndexOf('/') + 1) : null;

    const title = (
        <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
            <a
                href={githubUrl}
                target="_blank"
                rel="noopener noreferrer"
                style={{
                    color: 'gray',
                    textDecoration: 'none',
                }}
                onMouseOver={e => {
                    e.target.style.textDecoration = 'underline';
                }}
                onMouseOut={e => {
                    e.target.style.textDecoration = 'none';
                }}
            >
                <span>{fileName}</span>
            </a>
            {githubUrl && (
                <a href={githubUrl} target="_blank" rel="noopener noreferrer" style={{ color: 'gray', fontSize: '0.9em', fontStyle: 'italic', display: 'inline-flex', alignItems: 'center' }}>
                    View on GitHub
                    <Icon icon="mdi:github" height="1em" />
                </a>
            )}
        </div>
    );

    return (
        loading ? (
            <div>Loading code...</div>
        ) : error ? (
            <div>Error: {error.message}</div>
        ) : (
            <div style={{ backgroundColor: 'transparent', padding: '0px', borderRadius: '5px' }}>
                <CodeBlock title={title} className="language-java">{code}</CodeBlock>
            </div>
        )
    );
};

export default CodeEmbed;