/**
 * upaas - Frontend JavaScript utilities
 * Vanilla JS, no dependencies
 */

(function() {
  'use strict';

  /**
   * Copy text to clipboard
   * @param {string} text - Text to copy
   * @param {HTMLElement} button - Button element to update feedback
   */
  function copyToClipboard(text, button) {
    const originalText = button.textContent;
    const originalTitle = button.getAttribute('title');

    navigator.clipboard.writeText(text).then(function() {
      // Success feedback
      button.textContent = 'Copied!';
      button.classList.add('text-success-500');

      setTimeout(function() {
        button.textContent = originalText;
        button.classList.remove('text-success-500');
        if (originalTitle) {
          button.setAttribute('title', originalTitle);
        }
      }, 2000);
    }).catch(function(err) {
      // Fallback for older browsers
      console.error('Failed to copy:', err);

      // Try fallback method
      var textArea = document.createElement('textarea');
      textArea.value = text;
      textArea.style.position = 'fixed';
      textArea.style.left = '-9999px';
      document.body.appendChild(textArea);
      textArea.select();

      try {
        document.execCommand('copy');
        button.textContent = 'Copied!';
        setTimeout(function() {
          button.textContent = originalText;
        }, 2000);
      } catch (e) {
        button.textContent = 'Failed';
        setTimeout(function() {
          button.textContent = originalText;
        }, 2000);
      }

      document.body.removeChild(textArea);
    });
  }

  /**
   * Initialize copy buttons
   * Looks for elements with data-copy attribute
   */
  function initCopyButtons() {
    var copyButtons = document.querySelectorAll('[data-copy]');

    copyButtons.forEach(function(button) {
      button.addEventListener('click', function(e) {
        e.preventDefault();
        var text = button.getAttribute('data-copy');
        copyToClipboard(text, button);
      });
    });

    // Also handle buttons that copy content from a sibling element
    var copyTargetButtons = document.querySelectorAll('[data-copy-target]');

    copyTargetButtons.forEach(function(button) {
      button.addEventListener('click', function(e) {
        e.preventDefault();
        var targetId = button.getAttribute('data-copy-target');
        var target = document.getElementById(targetId);
        if (target) {
          var text = target.textContent || target.value;
          copyToClipboard(text, button);
        }
      });
    });
  }

  /**
   * Confirm destructive actions
   * Looks for forms with data-confirm attribute
   */
  function initConfirmations() {
    var confirmForms = document.querySelectorAll('form[data-confirm]');

    confirmForms.forEach(function(form) {
      form.addEventListener('submit', function(e) {
        var message = form.getAttribute('data-confirm');
        if (!confirm(message)) {
          e.preventDefault();
        }
      });
    });

    // Also handle buttons with data-confirm
    var confirmButtons = document.querySelectorAll('button[data-confirm]');

    confirmButtons.forEach(function(button) {
      button.addEventListener('click', function(e) {
        var message = button.getAttribute('data-confirm');
        if (!confirm(message)) {
          e.preventDefault();
        }
      });
    });
  }

  /**
   * Toggle visibility of elements
   * Looks for buttons with data-toggle attribute
   */
  function initToggles() {
    var toggleButtons = document.querySelectorAll('[data-toggle]');

    toggleButtons.forEach(function(button) {
      button.addEventListener('click', function(e) {
        e.preventDefault();
        var targetId = button.getAttribute('data-toggle');
        var target = document.getElementById(targetId);
        if (target) {
          target.classList.toggle('hidden');

          // Update button text if data-toggle-text is provided
          var toggleText = button.getAttribute('data-toggle-text');
          if (toggleText) {
            var currentText = button.textContent;
            button.textContent = toggleText;
            button.setAttribute('data-toggle-text', currentText);
          }
        }
      });
    });
  }

  /**
   * Auto-dismiss alerts after a delay
   * Looks for elements with data-auto-dismiss attribute
   */
  function initAutoDismiss() {
    var dismissElements = document.querySelectorAll('[data-auto-dismiss]');

    dismissElements.forEach(function(element) {
      var delay = parseInt(element.getAttribute('data-auto-dismiss'), 10) || 5000;

      setTimeout(function() {
        element.style.transition = 'opacity 0.3s ease-out';
        element.style.opacity = '0';

        setTimeout(function() {
          element.remove();
        }, 300);
      }, delay);
    });
  }

  /**
   * Manual dismiss for alerts
   * Looks for buttons with data-dismiss attribute
   */
  function initDismissButtons() {
    var dismissButtons = document.querySelectorAll('[data-dismiss]');

    dismissButtons.forEach(function(button) {
      button.addEventListener('click', function(e) {
        e.preventDefault();
        var targetId = button.getAttribute('data-dismiss');
        var target = targetId ? document.getElementById(targetId) : button.closest('.alert');

        if (target) {
          target.style.transition = 'opacity 0.3s ease-out';
          target.style.opacity = '0';

          setTimeout(function() {
            target.remove();
          }, 300);
        }
      });
    });
  }

  /**
   * Initialize all features when DOM is ready
   */
  function init() {
    initCopyButtons();
    initConfirmations();
    initToggles();
    initAutoDismiss();
    initDismissButtons();
  }

  // Run on DOM ready
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', init);
  } else {
    init();
  }

  // Expose copyToClipboard globally for inline onclick handlers if needed
  window.upaas = {
    copyToClipboard: copyToClipboard
  };

})();