A groundbreaking journal app

Journal3000.swift

import Foundation

let fileManager = FileManager.default
let filePathURL = URL(fileURLWithPath: fileManager.currentDirectoryPath)

func safeReadLine(prompt: String) -> String {
  print(prompt)
  
  if let input = readLine() {
    let sanitizedInput = input.trimmingCharacters(in: .whitespacesAndNewlines)
    if !sanitizedInput.isEmpty && sanitizedInput != "" {
      return input
    }
  }
  
  print("Input cannot be empty. Please try again.")
  return safeReadLine(prompt: prompt)
}

func createJournalEntry() {
  let titlePrompt = "Enter the title of your journal entry:"
  let title = safeReadLine(prompt: titlePrompt)
  
  let fileName = "\(title.replacingOccurrences(of: " ", with: "_")).txt"
  let filePath = filePathURL.appendingPathComponent(fileName)
  
  if fileManager.fileExists(atPath: filePath.path) {
    print("A journal entry with that title already exists. Try a different title.")
    createJournalEntry()
  }
  
  let bodyPrompt = "Enter the body of your journal entry:"
  let body = safeReadLine(prompt: bodyPrompt)
  
  let content = "\(title)\n\n\(body)"
  
  do {
    try content.write(to: filePath, atomically: true, encoding: .utf8)
    print("Journal entry saved!")
  } catch {
    print("Failed to save the journal entry. Error: \(error)")
  }
}

func listJournalEntries() {
  let enumerator = fileManager.enumerator(at: filePathURL, includingPropertiesForKeys: nil)
  
  print("\nJournal entries:")
  while let file = enumerator?.nextObject() as? URL {
    if file.pathExtension == "txt" {
      print("- \(file.lastPathComponent)")
    }
  }
}

func appLoop() {
  while true {
    let commandPrompt =
    """
    \nPlease enter a command:
    - Create a new journal entry ("create" or "c")
    - List all journal entires ("list" or "l")
    - Exit the app ("exit" or "e")
    """

    let response = safeReadLine(prompt: commandPrompt).lowercased()
    switch response {
      case "create", "c":
        createJournalEntry()
      case "list", "l":
        listJournalEntries()
      case "exit", "e":
        return
      default:
        print("Command not recognized.")
        break
    }
  }
}

print("✨ Welcome to Journal3000! ✨")
appLoop()
print("Exiting Journal3000. Goodbye!")