export const theme = {
  colors: {
    bg: '#0e0e14',
    surface: '#1a1a2e',
    surface2: '#2d2d44',
    border: '#2d2d44',
    accent: '#818cf8',
    accentGreen: '#6ee7b7',
    accentOrange: '#fb923c',
    accentBlue: '#38bdf8',
    accentYellow: '#fbbf24',
    text: '#e2e8f0',
    textMuted: '#6b7280',
    warn: '#fb923c',
    danger: '#f87171',
    success: '#6ee7b7',
  },
  radius: 10,
};

// Map file extensions to Monaco language IDs
export function getLanguage(filename) {
  if (!filename) return 'plaintext';
  const ext = filename.split('.').pop().toLowerCase();
  const map = {
    js: 'javascript', jsx: 'javascript',
    ts: 'typescript', tsx: 'typescript',
    py: 'python',
    html: 'html', htm: 'html',
    css: 'css', scss: 'scss', less: 'less',
    json: 'json',
    md: 'markdown', mdx: 'markdown',
    xml: 'xml',
    yaml: 'yaml', yml: 'yaml',
    sh: 'shell', bash: 'shell',
    java: 'java',
    kt: 'kotlin',
    swift: 'swift',
    cpp: 'cpp', cc: 'cpp', cxx: 'cpp',
    c: 'c', h: 'c',
    cs: 'csharp',
    go: 'go',
    rs: 'rust',
    rb: 'ruby',
    php: 'php',
    sql: 'sql',
    r: 'r',
    dart: 'dart',
    lua: 'lua',
    toml: 'ini',
    ini: 'ini', cfg: 'ini', conf: 'ini',
    txt: 'plaintext',
    log: 'plaintext',
    csv: 'plaintext',
  };
  return map[ext] || 'plaintext';
}

// Icon color per language family
export function getLangColor(filename) {
  const lang = getLanguage(filename);
  if (['javascript', 'typescript'].includes(lang)) return '#fbbf24';
  if (lang === 'python') return '#38bdf8';
  if (['html', 'xml'].includes(lang)) return '#fb923c';
  if (['css', 'scss', 'less'].includes(lang)) return '#818cf8';
  if (lang === 'json') return '#6ee7b7';
  if (lang === 'markdown') return '#94a3b8';
  if (lang === 'shell') return '#6ee7b7';
  if (['java', 'kotlin'].includes(lang)) return '#f87171';
  if (lang === 'rust') return '#fb923c';
  if (lang === 'go') return '#38bdf8';
  return '#6b7280';
}

// Binary / non-editable file types
const BINARY_EXTS = ['pdf', 'xls', 'xlsx', 'doc', 'docx', 'png', 'jpg', 'jpeg', 'gif', 'bmp', 'webp', 'svg', 'zip', 'tar', 'gz', 'apk', 'aar', 'jar', 'so', 'dylib', 'exe', 'mp4', 'mp3', 'wav'];

export function isEditable(filename) {
  if (!filename) return false;
  const ext = filename.split('.').pop().toLowerCase();
  return !BINARY_EXTS.includes(ext);
}