/**

* Lightweight MIME type lookup

* Replaces the heavy mime-types package (146KB)

*/

const extToMime: Record<string, string> = {

// Web documents

html: 'text/html',

htm: 'text/html',

css: 'text/css',

js: 'text/javascript',

json: 'application/json',

xml: 'text/xml',

txt: 'text/plain',

md: 'text/markdown',

// RDF

ttl: 'text/turtle',

n3: 'text/n3',

rdf: 'application/rdf+xml',

jsonld: 'application/ld+json',

// Images

jpg: 'image/jpeg',

jpeg: 'image/jpeg',

png: 'image/png',

gif: 'image/gif',

svg: 'image/svg+xml',

webp: 'image/webp',

// Media

mp3: 'audio/mpeg',

mp4: 'video/mp4',

webm: 'video/webm',

// Documents

pdf: 'application/pdf',

}

export function lookup (filename: string): string | false {

const ext = filename.split('.').pop()?.toLowerCase()

if (!ext) return false

return extToMime[ext] || false

}

export default { lookup }