/**
 * On-site wallet tipping modal.
 *
 * @package AKSRT
 */
;(function () {
  'use strict';

  var cfg = window.aksrtData || {};

  function initReward(root) {
    if (root && root.nodeType === 1 && !root.matches('[data-aksrt-reward-root], body, html')) return;
    if (document.documentElement.dataset.aksrtRewardInitialized === '1') return;
    document.documentElement.dataset.aksrtRewardInitialized = '1';
    var activeTrigger = null;

    function operationKey(modal) {
      if (!modal.dataset.aksrtOperationKey) {
        modal.dataset.aksrtOperationKey = window.AksrtRequest.createIdempotencyKey();
      }
      return modal.dataset.aksrtOperationKey;
    }

    function closeAll() {
      document.querySelectorAll('.reward-modal.is-open').forEach(function (modal) {
        modal.classList.remove('is-open');
        modal.setAttribute('aria-hidden', 'true');
      });
      document.body.style.overflow = '';
      if (activeTrigger) activeTrigger.focus();
      activeTrigger = null;
    }

    function open(trigger) {
      var userId = trigger.getAttribute('data-user-id') || '';
      var modal = document.getElementById('reward-modal-' + userId);
      if (!modal) return;
      closeAll();
      activeTrigger = trigger;
      modal.dataset.postId = trigger.getAttribute('data-post-id') || modal.dataset.postId || '0';
      modal.classList.add('is-open');
      modal.setAttribute('aria-hidden', 'false');
      document.body.style.overflow = 'hidden';
      var first = modal.querySelector('[data-reward-amount], [data-aksrt-reward-custom]');
      if (first) first.focus();
    }

    document.addEventListener('click', function (event) {
      var opener = event.target.closest('[data-aksrt-reward-open]');
      if (opener) {
        event.preventDefault();
        open(opener);
        return;
      }

      if (event.target.closest('[data-aksrt-reward-close]')) {
        event.preventDefault();
        closeAll();
        return;
      }

      var amountButton = event.target.closest('[data-reward-amount]');
      if (amountButton) {
        var modal = amountButton.closest('.reward-modal');
        delete modal.dataset.aksrtOperationKey;
        modal.querySelectorAll('[data-reward-amount]').forEach(function (button) {
          button.classList.toggle('is-active', button === amountButton);
        });
        var custom = modal.querySelector('[data-aksrt-reward-custom]');
        if (custom) custom.value = '';
        return;
      }

      var submit = event.target.closest('[data-aksrt-reward-submit]');
      if (!submit || submit.disabled) return;
      var tipModal = submit.closest('.reward-modal');
      var message = tipModal.querySelector('[data-aksrt-reward-message]');
      var customInput = tipModal.querySelector('[data-aksrt-reward-custom]');
      var selected = tipModal.querySelector('[data-reward-amount].is-active');
      var amount = customInput && customInput.value ? customInput.value : (selected ? selected.dataset.rewardAmount : '');
      if (customInput && customInput.dataset.aksrtIdempotencyBound !== '1') {
        customInput.dataset.aksrtIdempotencyBound = '1';
        customInput.addEventListener('input', function () { delete tipModal.dataset.aksrtOperationKey; });
      }

      submit.disabled = true;
      submit.textContent = '赞赏中…';
      if (message) message.textContent = '';

      var body = new URLSearchParams();
      body.set('action', 'aksrt_submit_tip');
      body.set('nonce', cfg.nonce || '');
      body.set('recipient_id', tipModal.dataset.userId || '');
      body.set('post_id', tipModal.dataset.postId || '0');
      body.set('amount', amount);

      fetch(cfg.ajaxUrl || '/wp-admin/admin-ajax.php', {
        method: 'POST',
        credentials: 'same-origin',
        headers: {
          'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
          'Idempotency-Key': operationKey(tipModal)
        },
        body: body.toString()
      }).then(function (response) {
        return response.json();
      }).then(function (response) {
        var text = response && response.data && response.data.message ? response.data.message : '赞赏失败';
        if (response && response.success) {
          delete tipModal.dataset.aksrtOperationKey;
          if (message) message.textContent = text;
          setTimeout(closeAll, 900);
        } else if (message) {
          message.textContent = text;
        }
      }).catch(function () {
        if (message) message.textContent = '网络错误，请稍后重试';
      }).finally(function () {
        submit.disabled = false;
        submit.textContent = '余额赞赏';
      });
    });

    document.addEventListener('keydown', function (event) {
      if (event.key === 'Escape') closeAll();
    });
  }

  if (window.AksrtFrontend && typeof window.AksrtFrontend.register === 'function') {
    window.AksrtFrontend.register('aksrt-reward', initReward);
  }
})();