extractMessages function

List<MessageRef> extractMessages(BeautifulSoup soup)

Implementation

List<MessageRef> extractMessages(BeautifulSoup soup) {
  List<MessageRef> messages = [];
  var messageTableParent =
      soup.find("table", id: "s_m_Content_Content_threadGV_ctl00");
  var folderIdInput =
      soup.find('*', id: 's_m_Content_Content_ListGridSelectionTree_folders');
  int? folderId = int.tryParse(folderIdInput?.getAttrValue("value") ?? "");
  if (messageTableParent != null && folderId != null) {
    var messageTable = messageTableParent.children[0].children;
    messageTable.removeAt(0).decompose();
    for (var messageRow in messageTable) {
      Bs4Element linkElement = messageRow.children[3].children[0].children[0];
      String postCode = linkElement.getAttrValue("onclick")!;
      int indexOfDollar = postCode.indexOf("\$");
      String id = postCode.substring(
          indexOfDollar, postCode.indexOf('\'', indexOfDollar));
      int indexOfUnderDollar = id.indexOf(r'_$_');
      String normalizedId = id.substring(indexOfUnderDollar + 3);
      String topic = messageRow.children[3].text.trim();
      String receivers =
          messageRow.children[5].children[0].getAttrValue('title')!;
      String dateChanged = messageRow.children[7].text;
      DateTime parsedTime = parseLectioDate(dateChanged);
      messages.add(MessageRef(
          id: id,
          dateChanged: parsedTime,
          topic: topic,
          sender: receivers,
          folderId: folderId,
          normalizedId: normalizedId));
    }
  }
  return messages;
}