const c = document.querySelector(".console")
const ps1 = "[fr@website ~]$ "
let line = "";
let command = ""

function exec(command) {
  console.log(command)

  switch (command[0]) {
    case "help":
      line = "about<br>projects<br>contact<br>"
      break;
    case "author":
      line = "Filip Rojek, 2023"
      break
    case "contact":
      line = "Filip Rojek &ltfilip@filiprojek.cz&gt<br>web: <a href='https://filiprojek.cz' target='_blank'>www.filiprojek.cz</a><br>telegram: <a href='https://t.me/filiprojek' target='_blank'>@filiprojek</a>"
      break
    case "clear":
      write("000ctrll")
      break
    default:
      line = "frsh: " + command[0] + ": command not found"
      break;
  }

  l = document.createElement("p").innerHTML = line
  c.appendChild(l)
}

function write(key) {
  console.log("KEY:", key)
  switch(key) {
    case "Enter":
      command = command.split(" ");
      exec(command)
      line = document.createElement("p")
      line.innerHTML += ps1
      c.appendChild(line)
      command = ""
      break
    case "000ctrll":
      c.innerHTML = ""
      line = document.createElement("p")
      line.innerHTML += ps1
      c.appendChild(line)
      break
    case "000backspace":
      console.log(c.textContent.slice(0, -1))
      console.log(ps1 == c.textContent)
      if(c.lastChild.textContent.slice(0, -1) !== ps1.slice(0, -1)) {
        c.lastChild.innerHTML = c.lastChild.textContent.slice(0, -1)
      }
      break

    default:
      c.lastChild.innerHTML += key
      command += key
  }
}

function customCtrlShortcuts(plusKey) {
  document.addEventListener("keydown", e => {
    if(e.ctrlKey && e.key == plusKey) {
      e.preventDefault()
      write("000ctrl"+plusKey)
    }
  })
}

// On load init the terminal
window.addEventListener("load", () => {
  write("000ctrll")
})

// Capture the keypress
window.addEventListener("keypress", e => {
  e.preventDefault()
  write(e.key)
})

window.addEventListener("keydown", e => {
  if(e.key == "Backspace") {
    e.preventDefault()
    write("000backspace")
  }
})

// Register custom ctrl shortcuts
customCtrlShortcuts("l") // ctrl + l
customCtrlShortcuts("c") // ctrl + c