const StellarTimeline = {
  reactions: {
    '+1': '👍',
    '-1': '👎', 
    'laugh': '😀', 
    'hooray': '🎉', 
    'confused': '😕', 
    'heart': '❤️', 
    'rocket': '🚀', 
    'eyes': '👀'
  },
  requestAPI: (url, callback, timeout) => {
    let retryTimes = 5;
    function request() {
      return new Promise((resolve, reject) => {
        let status = 0; // 0 等待 1 完成 2 超时
        let timer = setTimeout(() => {
          if (status === 0) {
            status = 2;
            timer = null;
            reject('请求超时');
            if (retryTimes == 0) {
              timeout();
            }
          }
        }, 5000);
        fetch(url).then(function(response) {
          if (status !== 2) {
            clearTimeout(timer);
            resolve(response);
            timer = null;
            status = 1;
          }
          if (response.ok) {
            return response.json();
          }
          throw new Error('Network response was not ok.');
        }).then(function(data) {
          retryTimes = 0;
          callback(data);
        }).catch(function(error) {
          if (retryTimes > 0) {
            retryTimes -= 1;
            setTimeout(() => {
              request();
            }, 5000);
          } else {
            timeout();
          }
        });
      });
    }
    request();
  },
  layoutDiv: (cfg) => {
    const el = $(cfg.el)[0];
    $(el).append('<div class="loading-wrap"><svg xmlns="http://www.w3.org/2000/svg" width="2em" height="2em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 24 24"><g fill="none" stroke="currentColor" stroke-linecap="round" stroke-width="2"><path stroke-dasharray="60" stroke-dashoffset="60" stroke-opacity=".3" d="M12 3C16.9706 3 21 7.02944 21 12C21 16.9706 16.9706 21 12 21C7.02944 21 3 16.9706 3 12C3 7.02944 7.02944 3 12 3Z"><animate fill="freeze" attributeName="stroke-dashoffset" dur="1.3s" values="60;0"/></path><path stroke-dasharray="15" stroke-dashoffset="15" d="M12 3C16.9706 3 21 7.02944 21 12"><animate fill="freeze" attributeName="stroke-dashoffset" dur="0.3s" values="15;0"/><animateTransform attributeName="transform" dur="1.5s" repeatCount="indefinite" type="rotate" values="0 12 12;360 12 12"/></path></g></svg></div>');
    StellarTimeline.requestAPI(cfg.api, function(data) {
      $(el).find('.loading-wrap').remove();
      const query = new URL(cfg.api).search;
      const arr = data.content || data;
      var users = [];
      const filter = el.getAttribute('user');
      if (filter && filter.length > 0) {
        users = filter.split(",");
      }
      var hide = [];
      const hideStr = el.getAttribute('hide');
      if (hideStr && hideStr.length > 0) {
        hide = hideStr.split(",");
      }
      arr.forEach((item, i) => {
        if (item.user && item.user.login && users.length > 0) {
          if (!users.includes(item.user.login)) {
            return;
          }
        }
        var cell = '<div class="timenode" index="' + i + '">';
        cell += '<div class="header">';
        if (!users.length && item.user && !hide.includes('user')) {
          cell += '<a class="user-info" href="' + item.user.html_url + '" target="_blank" rel="external nofollow noopener noreferrer">';
          cell += '<img src="' + item.user.avatar_url + '">';
          cell += '<span>' + item.user.login + '</span>';
          cell += '</a>';
        }
        let date = new Date(item.created_at);
        cell += '<p>' + date.toLocaleString() + '</p>';
        cell += '</div>';
        cell += '<div class="body">';
        if (!hide.includes('title')) {
          cell += '<p class="title">';
          cell += '<a href="' + item.html_url + '" target="_blank" rel="external nofollow noopener noreferrer">';
          cell += item.title || item.name || item.tag_name;
          cell += '</a>';
          cell += '</p>';
        }
        
        cell += marked.parse(item.body || '');
        if (!hide.includes('footer')) {
          cell += '<div class="footer">';
          cell += '<div class="flex left">';
          if (item.labels) {
            item.labels.forEach((label, i) => {
              if (!query || !query.includes(encodeURI(label.name))) {
                cell += '<div class="item label ' + label.name + '" style="background:#' + label.color + '18;border-color:#' + label.color + '36">';
                cell += '<span>' + label.name + '</span>';
                cell += '</div>';
              }
            });
          } else if (item.zipball_url) {
            cell += '<a class="item download" href="' + item.zipball_url + '" target="_blank" rel="external nofollow noopener noreferrer">';
            cell += '<span>📦 ' + item.tag_name + '.zip</span>';
            cell += '</a>';
          }
          cell += '</div>';
          cell += '<div class="flex right">';
          if (item.reactions && item.reactions.total_count > 0) {
            for (let key of Object.keys(StellarTimeline.reactions)) {
              let num = item.reactions[key];
              if (num > 0) {
                cell += '<div class="item reaction ' + key + '">';
                cell += '<span>' + StellarTimeline.reactions[key] + ' ' + item.reactions[key] + '</span>';
                cell += '</div>';
              }
            }
          }
          if (item.comments != null) {
            cell += '<a class="item comments last" href="' + item.html_url + '#issuecomment-new" target="_blank" rel="external nofollow noopener noreferrer">';
            cell += '<span><svg t="1666270368054" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="2528" width="200" height="200"><path d="M952 64H72C32.3 64 0 96.3 0 136v508c0 39.7 32.3 72 72 72h261l128 128c14 14 32.5 21.1 50.9 21.1s36.9-7 50.9-21.1l128-128h261c39.7 0 72-32.3 72-72V136c0.2-39.7-32.1-72-71.8-72zM222 462c-39.8 0-72-32.2-72-72s32.2-72 72-72 72 32.2 72 72-32.2 72-72 72z m290-7.7c-39.8 0-72-32.2-72-72s32.2-72 72-72 72 32.2 72 72c0 39.7-32.2 72-72 72z m290 8c-39.8 0-72-32.2-72-72s32.2-72 72-72 72 32.2 72 72c0 39.7-32.2 72-72 72z" p-id="2529"></path></svg> ' + (item.comments || 0) + '</span>';
            cell += '</a>';
          }
          
          cell += '</div>';
          cell += '</div>';
        }
        
        cell += '</div>';
        cell += '</div>';
        $(el).append(cell);
      });
    }, function() {
      $(el).find('.loading-wrap svg').remove();
      $(el).find('.loading-wrap').append('<svg xmlns="http://www.w3.org/2000/svg" width="2em" height="2em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 24 24"><g fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"><path stroke-dasharray="60" stroke-dashoffset="60" d="M12 3L21 20H3L12 3Z"><animate fill="freeze" attributeName="stroke-dashoffset" dur="0.5s" values="60;0"/></path><path stroke-dasharray="6" stroke-dashoffset="6" d="M12 10V14"><animate fill="freeze" attributeName="stroke-dashoffset" begin="0.6s" dur="0.2s" values="6;0"/></path></g><circle cx="12" cy="17" r="1" fill="currentColor" fill-opacity="0"><animate fill="freeze" attributeName="fill-opacity" begin="0.8s" dur="0.4s" values="0;1"/></circle></svg>');
      $(el).find('.loading-wrap').addClass('error');
    });
  },
}

$(function () {
  const els = document.getElementsByClassName('stellar-timeline-api');
  for (var i = 0; i < els.length; i++) {
    const el = els[i];
    const api = el.getAttribute('api');
    if (api == null) {
      continue;
    }
    var obj = new Object();
    obj.el = el;
    obj.api = api;
    StellarTimeline.layoutDiv(obj);
  }
});