// Tinker Tickets hookshot transform — handles all event types emitted by NotificationHelper
// result must be assigned without var/let/const (QuickJS sandbox)

var event       = data.event || 'ticket_created';
var id          = data.ticket_id || '?';
var title       = data.title || 'Untitled';
var url         = data.url || '';
var notifyUsers = data.notify_users || [];

var priorityEmojis = ['', '\ud83d\udd34', '\ud83d\udfe0', '\ud83d\udd35', '\ud83d\udfe2', '\u26ab'];
var priorityLabels = ['', 'P1 Critical', 'P2 High', 'P3 Medium', 'P4 Low', 'P5 Info'];

// Build mention strings
var mentionPlain = '';
var mentionHtml  = '';
if (notifyUsers.length > 0) {
  var pParts = [], hParts = [];
  for (var i = 0; i < notifyUsers.length; i++) {
    var uid  = notifyUsers[i];
    var disp = uid.replace(/^@/, '').split(':')[0];
    pParts.push(uid);
    hParts.push('<a href="https://matrix.to/#/' + uid + '">' + disp + '</a>');
  }
  mentionPlain = '\n' + pParts.join(' ');
  mentionHtml  = '<br>' + hParts.join(' ');
}

var ticketLink      = url ? ('<a href="' + url + '">#' + id + '</a>') : ('#' + id);

var plain, html;

if (event === 'ticket_created') {
  var priority = parseInt(data.priority) || 4;
  var category = data.category || 'General';
  var type     = data.type     || 'Issue';
  var source   = data.source   || '';
  var trigger  = data.trigger  || 'manual';
  var emoji    = (priority >= 1 && priority <= 5) ? priorityEmojis[priority] : '\u26ab';
  var pLabel   = (priority >= 1 && priority <= 5) ? priorityLabels[priority]  : 'P' + priority;
  var tLabel   = trigger === 'automated' ? 'Automated' : 'Manual';
  var meta     = pLabel + ' \u00b7 ' + category + ' \u00b7 ' + type + (source ? ' \u00b7 ' + source : '') + ' [' + tLabel + ']';

  plain = emoji + ' New Ticket #' + id + ': ' + title + '\n' + meta + (url ? '\n' + url : '') + mentionPlain;
  html  = '<b>' + emoji + ' ' + ticketLink + ': ' + title + '</b><br>' + meta + mentionHtml;

} else if (event === 'status_changed') {
  var oldStatus = data.old_status || '?';
  var newStatus = data.new_status || '?';
  var changedBy = data.changed_by ? (' by ' + data.changed_by) : '';

  plain = '\ud83d\udd04 Status changed' + changedBy + ': ' + oldStatus + ' \u2192 ' + newStatus + '\n#' + id + ': ' + title + (url ? '\n' + url : '') + mentionPlain;
  html  = '\ud83d\udd04 Status changed' + changedBy + ': <b>' + oldStatus + ' \u2192 ' + newStatus + '</b><br>' + ticketLink + ': ' + title + mentionHtml;

} else if (event === 'comment_added') {
  var author  = data.author  || 'Someone';
  var preview = data.preview || '';

  plain = '\ud83d\udcac ' + author + ' commented on #' + id + ': ' + title + (preview ? '\n"' + preview + '"' : '') + (url ? '\n' + url : '') + mentionPlain;
  html  = '\ud83d\udcac <b>' + author + '</b> commented on ' + ticketLink + ': ' + title + (preview ? '<br><i>"' + preview + '"</i>' : '') + mentionHtml;

} else if (event === 'mention') {
  var author  = data.author  || 'Someone';
  var preview = data.preview || '';

  plain = '\ud83d\udce3 ' + author + ' mentioned you in #' + id + ': ' + title + (preview ? '\n"' + preview + '"' : '') + (url ? '\n' + url : '') + mentionPlain;
  html  = '\ud83d\udce3 <b>' + author + '</b> mentioned you in ' + ticketLink + ': ' + title + (preview ? '<br><i>"' + preview + '"</i>' : '') + mentionHtml;

} else if (event === 'assigned') {
  var assignee  = data.assignee   || 'someone';
  var changedBy = data.changed_by ? (' by ' + data.changed_by) : '';

  plain = '\ud83d\udc64 Ticket #' + id + ' assigned to ' + assignee + changedBy + ': ' + title + (url ? '\n' + url : '') + mentionPlain;
  html  = '\ud83d\udc64 ' + ticketLink + ' assigned to <b>' + assignee + '</b>' + changedBy + ': ' + title + mentionHtml;

} else {
  plain = '[tinker-tickets] event: ' + event + ' ticket #' + id;
  html  = '[tinker-tickets] event: <code>' + event + '</code> ticket #' + id;
}

result = { version: 'v2', plain: plain, html: html, msgtype: 'm.text' };