export function getFilename(path: string | undefined) {

if (!path) return ""

const trimmed = path.replace(/[/\\]+$/, "")

const parts = trimmed.split(/[/\\]/)

return parts[parts.length - 1] ?? ""

}

export function getDirectory(path: string | undefined) {

if (!path) return ""

const trimmed = path.replace(/[/\\]+$/, "")

const parts = trimmed.split(/[/\\]/)

return parts.slice(0, parts.length - 1).join("/") + "/"

}

export function getFileExtension(path: string | undefined) {

if (!path) return ""

const parts = path.split(".")

return parts[parts.length - 1]

}

export function getFilenameTruncated(path: string | undefined, maxLength: number = 20) {

const filename = getFilename(path)

if (filename.length <= maxLength) return filename

const lastDot = filename.lastIndexOf(".")

const ext = lastDot <= 0 ? "" : filename.slice(lastDot)

const available = maxLength - ext.length - 1 // -1 for ellipsis

if (available <= 0) return filename.slice(0, maxLength - 1) + "…"

return filename.slice(0, available) + "…" + ext

}

export function truncateMiddle(text: string, maxLength: number = 20) {

if (text.length <= maxLength) return text

const available = maxLength - 1 // -1 for ellipsis

const start = Math.ceil(available / 2)

const end = Math.floor(available / 2)

return text.slice(0, start) + "…" + text.slice(-end)

}