import os from "node:os"
import path from "path"
import { fileExists } from "./file-system.js"

export function resolvePath(unresolvedPath) {
  return path.resolve(unresolvedPath.replace(/^~/, os.homedir()))
}

export async function firstFound(dirs, fileName) {
  // Note: This function depends on fileExists from file-system.js
  // Import it when using this function: import { fileExists } from './file-system.js'
  for (const dir of dirs) {
    const filePath = resolvePath(path.join(dir, fileName))
    const exists = await fileExists(filePath)
    if (exists) {
      return filePath
    }
  }
  return null
}

export function removeCwd(paths) {
  const cwd = `${process.cwd()}/`
  return paths.map(path => path.replace(cwd, ""))
}

export function removeBasePaths(baseDirs, fullPath) {
  return baseDirs.reduce((cleanedPath, dir) => {
    return cleanedPath.replace(dir, "")
  }, fullPath)
}

export function replaceFileExtension(filePath, newExtension) {
  if (!newExtension) {
    return filePath
  }
  return `${stripFileExtension(filePath)}${newExtension}`
}

export function stripFileExtension(filePath) {
  return path.join(
    path.dirname(filePath),
    path.basename(filePath, path.extname(filePath)),
  )
}

export function getCleanPath(filePath, meta) {
  return filePath.replace(meta.opts.runDir, "").replace(meta.opts.outDir, "/")
}

export function getHref(filePath, meta) {
  const route = getCleanPath(filePath, meta)
  if (route.includes("index.html")) {
    return route.replace("index.html", "")
  }
  return route.replace(".html", "")
}

export function slugifyString(str) {
  return str
    .toLowerCase()
    .trim()
    .replace(/[/\\?%@*:|"<>]/g, "-") // Replace invalid filename characters
    .replace(/\s+/g, "-") // Replace whitespace with dashes
    .replace(/-+/g, "-") // Collapse multiple dashes
    .replace(/\./g, "-") // Replace dots with dashes
    .replace(/^-+|-+$/g, "") // Trim leading/trailing dashes
}