import { isDevEnv } from "./app"

const normalizeBase = (base: string | undefined) => {
	if (!base) return ""
	return base.endsWith("/") ? base.slice(0, -1) : base
}

const ensureLeadingSlash = (url: string) => {
	if (!url) return ""
	return url.startsWith("/") ? url : `/${url}`
}

export const filePath = (path?: string | null) => {
	const rawPath = (path || "").trim()
	if (!rawPath) return ""
	if (/^https?:\/\//i.test(rawPath)) return rawPath
	const devBase = normalizeBase(import.meta.env.VITE_IMAGE_DEV_PATH || import.meta.env.VITE_APP_DEV_SERVICE)
	const prodBase = normalizeBase(import.meta.env.VITE_APP_PROD_IMAGE)
	const base = isDevEnv() ? devBase : prodBase

	if (!base) return rawPath

	return `${base}${ensureLeadingSlash(rawPath)}`
}