// credits.js

const Credits = (() => {
  const STORAGE_KEY = "jukeboxCredits";

  // Get credits from storage or initialize to 0
  function getCredits() {
    const stored = localStorage.getItem(STORAGE_KEY);
    return stored ? parseInt(stored, 10) : 0;
  }

  // Save credits back to storage
  function setCredits(value) {
    localStorage.setItem(STORAGE_KEY, value);
    updateDisplay();
  }

  // Update the UI
  function updateDisplay() {
    const el = document.getElementById("creditDisplay");
    if (el) {
      el.textContent = getCredits();
    }
    const nextEl = document.getElementById("trackModalNextButton");
    const queueEl = document.getElementById("trackModalQueueButton");

    if(Credits.get()>=3){
      nextEl.classList.remove('disabled');
    }else{
      nextEl.classList.add('disabled');
    }

    if(Credits.get()>=2){
      queueEl.classList.remove('disabled');
      document.getElementById('msg').innerHTML = "";
    }else{
      queueEl.classList.add('disabled');
      document.getElementById('msg').innerHTML = "<span class='badge rounded-pill text-bg-danger'>No Moneys</span>";
    }

  }

  // Public API
  return {
    init() {
      updateDisplay();
    },
    add(amount = 1) {
      const current = getCredits();
      setCredits(current + amount);
    },
    remove(amount = 1) {

      const current = getCredits();
       if(amount > current){
            return false;
        }
      setCredits(Math.max(0, current - amount)); // don’t go negative
      return true;
    },
    reset() {
      setCredits(0);
    },
    get() {
      return getCredits();
    }
  };
})();

// Initialize once DOM is ready
document.addEventListener("DOMContentLoaded", () => {
  Credits.init();
});