/**
 * AKSRT Enhancements Part 2 — 高级交互组件
 *
 * 包含：3D 悬停倾斜、滚动触发动画、封面轮播、打赏按钮
 *
 * @package AKSRT
 */

(function () {
  'use strict';

  /* ============================================================
   * 1. 3D 悬停倾斜效果 (vanilla-tilt 轻量版)
   * ============================================================ */
  function initTilt() {
    document.querySelectorAll('[data-aksrt-tilt]').forEach(function (el) {
      if (el.dataset.tiltInit) return;
      el.dataset.tiltInit = '1';

      var maxTilt = parseInt(el.dataset.aksrtTiltMax || '15', 10);
      var perspective = parseInt(el.dataset.aksrtTiltPerspective || '1000', 10);
      var scale = parseFloat(el.dataset.aksrtTiltScale || '1.03');
      var speed = parseInt(el.dataset.aksrtTiltSpeed || '400', 10);
      var glare = el.dataset.aksrtTiltGlare === '1';

      el.style.transformStyle = 'preserve-3d';
      el.style.transition = 'transform ' + speed + 'ms ease';

      var glareEl = null;
      if (glare) {
        glareEl = document.createElement('div');
        glareEl.style.cssText = 'position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;transition:opacity ' + speed + 'ms;';
        el.style.position = el.style.position || 'relative';
        el.style.overflow = 'hidden';
        el.appendChild(glareEl);
      }

      el.addEventListener('mousemove', function (e) {
        var rect = el.getBoundingClientRect();
        var x = (e.clientX - rect.left) / rect.width;
        var y = (e.clientY - rect.top) / rect.height;
        var tiltX = (0.5 - y) * maxTilt;
        var tiltY = (x - 0.5) * maxTilt;

        el.style.transform = 'perspective(' + perspective + 'px) rotateX(' + tiltX + 'deg) rotateY(' + tiltY + 'deg) scale3d(' + scale + ',' + scale + ',' + scale + ')';

        if (glareEl) {
          glareEl.style.opacity = '1';
          glareEl.style.background = 'linear-gradient(135deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.2) 50%, rgba(255,255,255,0) 100%)';
          glareEl.style.transform = 'translate(' + ((x - 0.5) * 100) + '%, ' + ((y - 0.5) * 100) + '%)';
        }
      });

      el.addEventListener('mouseleave', function () {
        el.style.transform = 'perspective(' + perspective + 'px) rotateX(0deg) rotateY(0deg) scale3d(1,1,1)';
        if (glareEl) glareEl.style.opacity = '0';
      });
    });
  }

  /* ============================================================
   * 2. 滚动触发动画 (IntersectionObserver)
   * ============================================================ */
  function initScrollAnimations() {
    if (!('IntersectionObserver' in window)) {
      // 不支持时直接显示所有元素
      document.querySelectorAll('[data-aksrt-animate]').forEach(function (el) {
        el.style.opacity = '1';
        el.style.transform = 'none';
      });
      return;
    }

    var observer = new IntersectionObserver(function (entries) {
      entries.forEach(function (entry) {
        if (!entry.isIntersecting) return;

        var el = entry.target;
        var animation = el.dataset.aksrtAnimate || 'fadeInUp';
        var delay = parseInt(el.dataset.aksrtAnimateDelay || '0', 10);
        var duration = parseInt(el.dataset.aksrtAnimateDuration || '600', 10);

        setTimeout(function () {
          el.style.transition = 'opacity ' + duration + 'ms ease, transform ' + duration + 'ms ease';
          el.style.opacity = '1';
          el.style.transform = 'translateY(0) translateX(0) scale(1)';
          el.classList.add('aksrt-animated');
        }, delay);

        observer.unobserve(el);
      });
    }, {
      threshold: 0.1,
      rootMargin: '0px 0px -50px 0px',
    });

    document.querySelectorAll('[data-aksrt-animate]').forEach(function (el) {
      if (el.dataset.aksrtAnimateInit) return;
      el.dataset.aksrtAnimateInit = '1';

      var animation = el.dataset.aksrtAnimate || 'fadeInUp';

      // 设置初始状态
      el.style.opacity = '0';
      switch (animation) {
        case 'fadeIn':
          el.style.transform = 'none';
          break;
        case 'fadeInUp':
          el.style.transform = 'translateY(30px)';
          break;
        case 'fadeInDown':
          el.style.transform = 'translateY(-30px)';
          break;
        case 'fadeInLeft':
          el.style.transform = 'translateX(-30px)';
          break;
        case 'fadeInRight':
          el.style.transform = 'translateX(30px)';
          break;
        case 'zoomIn':
          el.style.transform = 'scale(0.9)';
          break;
        default:
          el.style.transform = 'translateY(30px)';
      }

      observer.observe(el);
    });
  }

  /* ============================================================
   * 5. 粘性元素 (Sticky)
   * ============================================================ */
  function initSticky() {
    document.querySelectorAll('[data-aksrt-sticky]').forEach(function (el) {
      if (el.dataset.aksrtStickyInit) return;
      el.dataset.aksrtStickyInit = '1';

      var top = parseInt(el.dataset.aksrtStickyTop || '80', 10);
      var offset = parseInt(el.dataset.aksrtStickyOffset || '0', 10);

      function update() {
        var rect = el.getBoundingClientRect();
        var parentRect = el.parentElement.getBoundingClientRect();

        if (parentRect.top < top && parentRect.bottom > el.offsetHeight + top) {
          el.style.position = 'sticky';
          el.style.top = top + 'px';
        }
      }

      window.addEventListener('scroll', update, { passive: true });
    });
  }

  /* ============================================================
   * 6. 视差滚动
   * ============================================================ */
  var parallaxScrollBound = false;

  function initParallax() {
    if (!document.querySelector('[data-aksrt-parallax]')) return;
    if (parallaxScrollBound) return;
    parallaxScrollBound = true;

    var ticking = false;

    function update() {
      document.querySelectorAll('[data-aksrt-parallax]').forEach(function (el) {
        var speed = parseFloat(el.dataset.aksrtParallax || '0.3');
        var rect = el.getBoundingClientRect();
        var center = rect.top + rect.height / 2;
        var windowCenter = window.innerHeight / 2;
        var offset = (center - windowCenter) * speed;

        el.style.transform = 'translateY(' + offset + 'px)';
      });
      ticking = false;
    }

    window.addEventListener('scroll', function () {
      if (!ticking) {
        requestAnimationFrame(update);
        ticking = true;
      }
    }, { passive: true });
  }

  /* ============================================================
   * 7. 涟漪点击效果 — document 委托只绑定一次
   * ============================================================ */
  var rippleBound = false;

  function initRipple() {
    if (rippleBound) return;
    rippleBound = true;

    document.addEventListener('click', function (e) {
      var el = e.target.closest('.aksrt-ripple');
      if (!el) return;

      var rect = el.getBoundingClientRect();
      var x = e.clientX - rect.left;
      var y = e.clientY - rect.top;
      var size = Math.max(rect.width, rect.height) * 2;

      var wave = document.createElement('span');
      wave.className = 'aksrt-ripple__wave';
      wave.style.width = wave.style.height = size + 'px';
      wave.style.left = (x - size / 2) + 'px';
      wave.style.top = (y - size / 2) + 'px';

      el.appendChild(wave);

      wave.addEventListener('animationend', function () {
        wave.remove();
      });
    });
  }

  /* ============================================================
   * 8. 表单浮动标签自动初始化
   * ============================================================ */
  function initFloatLabels() {
    document.querySelectorAll('.aksrt-float-label__input').forEach(function (input) {
      if (input.dataset.aksrtFloatInit) return;
      input.dataset.aksrtFloatInit = '1';

      // 检查初始值
      if (input.value) {
        input.setAttribute('data-has-value', '1');
      }
      input.addEventListener('input', function () {
        if (this.value) {
          this.setAttribute('data-has-value', '1');
        } else {
          this.removeAttribute('data-has-value');
        }
      });
    });
  }

  /* ============================================================
   * 8. 签到日历可视化
   * ============================================================ */
  function initSigninCalendar() {
    var calendar = document.querySelector('[data-aksrt-signin-calendar]');
    if (!calendar) return;

    var data = [];
    try {
      data = JSON.parse(calendar.dataset.aksrtSigninCalendar || '[]');
    } catch (e) {}

    // 生成最近 30 天的格子
    var today = new Date();
    var html = '<div class="aksrt-signin-calendar__grid">';

    for (var i = 29; i >= 0; i--) {
      var d = new Date(today);
      d.setDate(d.getDate() - i);
      var dateStr = d.toISOString().split('T')[0];
      var isSigned = data.indexOf(dateStr) !== -1;
      var isToday = i === 0;

      html += '<div class="aksrt-signin-calendar__day' +
        (isSigned ? ' is-signed' : '') +
        (isToday ? ' is-today' : '') +
        '" title="' + dateStr + (isSigned ? ' ✓' : '') + '">' +
        '<span>' + d.getDate() + '</span>' +
        '</div>';
    }

    html += '</div>';
    calendar.innerHTML = html;
  }

  /* ============================================================
   * 初始化入口 — 先执行一次，随后监听 auto_fun 重扫（各 init 幂等）
   * ============================================================ */
  function init() {
    initTilt();
    initScrollAnimations();
    initRipple();
    initSticky();
    initParallax();
    initFloatLabels();
    initSigninCalendar();
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', init);
  } else {
    init();
  }
  if (window.jQuery) {
    window.jQuery(document).on('auto_fun', init);
  }

  // 暴露到全局供动态内容使用
  window.AksrtEnhancements = {
    initTilt: initTilt,
    initScrollAnimations: initScrollAnimations,
    initRipple: initRipple,
  };

})();