refactor(formatDownloadTitle): simplify function

I've kept the "extension determination process" in a nested function,
that reuses the formatDownloadTitle arguments,
however it could also be refactored into an own util function later,
if it is ever required.

The for loop got replaced by the built functions in `mimeType`
This commit is contained in:
Panagiotis Papadopoulos 2025-01-03 12:50:17 +01:00
parent d173daa14e
commit 6da656cd67

View File

@ -178,45 +178,29 @@ export function replaceAll(string: string, replaceWhat: string, replaceWith: str
} }
export function formatDownloadTitle(fileName: string, type: string | null, mime: string) { export function formatDownloadTitle(fileName: string, type: string | null, mime: string) {
if (!fileName) { const fileNameBase = (!fileName) ? "untitled" : sanitize(fileName);
fileName = "untitled";
}
fileName = sanitize(fileName); const getExtension = () => {
if (type === "text") return ".html";
if (type === "relationMap" || type === "canvas" || type === "search") return ".json";
if (!mime) return "";
if (type === 'text') { const mimeLc = mime.toLowerCase();
return `${fileName}.html`;
} else if (type && ['relationMap', 'canvas', 'search'].includes(type)) {
return `${fileName}.json`;
} else {
if (!mime) {
return fileName;
}
mime = mime.toLowerCase(); // better to just return the current name without a fake extension
const filenameLc = fileName.toLowerCase(); // it's possible that the title still preserves the correct extension anyways
const extensions = mimeTypes.extensions[mime]; if (mimeLc === 'application/octet-stream') return "";
if (!extensions || extensions.length === 0) { // if fileName has an extension matching the mime already - reuse it
return fileName; const mimeTypeFromFileName = mimeTypes.lookup(fileName);
} if (mimeTypeFromFileName === mimeLc) return "";
for (const ext of extensions) { // as last resort try to get extension from mimeType
if (filenameLc.endsWith(`.${ext}`)) { const extensions = mimeTypes.extension(mime);
return fileName; return extensions ? `.${extensions}` : "";
} };
}
if (mime === 'application/octet-stream') { return `${fileNameBase}${getExtension()}`;
// we didn't find any good guess for this one, it will be better to just return
// the current name without a fake extension. It's possible that the title still preserves the correct
// extension too
return fileName;
}
return `${fileName}.${extensions[0]}`;
}
} }
export function removeTextFileExtension(filePath: string) { export function removeTextFileExtension(filePath: string) {