import { join } from "path"
import { readdirSync } from "fs"
import type { Child } from "hono/jsx"
import { NOSE_DIR } from "../config"
import { isFile, isDir } from "../utils"

export async function appPath(appName: string): Promise<string | undefined> {
    const files = [join(NOSE_DIR, appName, "index.ts"), join(NOSE_DIR, appName, "index.tsx")]

    for (const file of files)
        if (await Bun.file(file).exists())
            return file
}

export async function toResponse(source: string | Child | Response): Promise<Response> {
    if (source instanceof Response)
        return source
    else if (typeof source === "string")
        return new Response(source)
    else
        return new Response(await source?.toString(), {
            headers: {
                "Content-Type": "text/html; charset=utf-8"
            }
        })
}

export function apps(): string[] {
    const apps: string[] = []

    for (const entry of readdirSync(NOSE_DIR))
        if (isApp(entry))
            apps.push(entry)

    return apps.sort()
}

export function isApp(name: string): boolean {
    return isFile(join(NOSE_DIR, name, "index.ts"))
        || isFile(join(NOSE_DIR, name, "index.tsx"))
        || isDir(join(NOSE_DIR, name, "pub"))
}

export function isStaticApp(name: string): boolean {
    return !isFile(join(NOSE_DIR, name, "index.ts"))
        && !isFile(join(NOSE_DIR, name, "index.tsx"))
        && isDir(join(NOSE_DIR, name, "pub"))
}

export function appDir(name: string): string | undefined {
    if (isApp(name))
        return join(NOSE_DIR, name)
}