// Name: Replace File Path with File Contents
// Description: If clipboard text is a file path, replace it with the file's contents.
// Author: tayiorbeii
// GitHub: tayiorbeii

import "@johnlindquist/kit"

function stripQuotes(s: string): string {
  if ((s.startsWith('"') && s.endsWith('"')) || (s.startsWith("'") && s.endsWith("'"))) {
    return s.slice(1, -1)
  }
  return s
}

function fromFileUrl(url: string): string {
  // Remove "file://" and decode
  let decoded = decodeURI(url).replace(/^file:\/\//i, '')
  // On Windows, file URLs may start with "/C:/..."
  if (/^\/[a-zA-Z]:\//.test(decoded)) decoded = decoded.slice(1)
  return decoded
}

function expandTilde(p: string): string {
  if (p === '~') return home()
  if (p.startsWith('~/')) {
    const rest = p.slice(2)
    const parts = rest.split(/[\\/]+/).filter(Boolean)
    return home(...parts)
  }
  return p
}

function normalizePath(raw: string): string {
  let s = raw.trim()
  // If multiple lines were copied, use the first line
  if (s.includes('\n')) s = s.split('\n')[0].trim()
  s = stripQuotes(s)
  if (/^file:\/\//i.test(s)) s = fromFileUrl(s)
  s = expandTilde(s)
  return s
}

const current = (await paste())?.trim() || ''
if (!current) {
  exit()
}

const candidate = normalizePath(current)
if (await isFile(candidate)) {
  try {
    const content = await readFile(candidate, 'utf8')
    await copy(content)
    await toast(`Replaced file path with contents of: ${path.basename(candidate)}`, { autoClose: 2000 })
  } catch (err) {
    await toast(`Failed to read file: ${candidate}`, { autoClose: 3000 })
  }
} else {
  // Not a file path; do nothing
  exit()
}