** more elegant, but are not compatible with CGI, and would thus complicate
** configuration.  
*/
#include "config.h"
#include <assert.h>
#include "chat.h"

/* Settings that can be used to control chat */
/*
** SETTING: chat-initial-history    width=10 default=50
**
** If this setting has an integer value of N, then when /chat first
** starts up it initializes the screen with the N most recent chat
** messages.  If N is zero, then all chat messages are loaded.
*/
/*
** SETTING: chat-keep-count    width=10 default=50
**
** When /chat is cleaning up older messages, it will always keep
** the most recent chat-keep-count messages, even if some of those
** messages are older than the discard threshold.  If this value
** is zero, then /chat is free to delete all historic messages once
** they are old enough.
*/
/*
** SETTING: chat-keep-days    width=10 default=7
**
** The /chat subsystem will try to discard messages that are older then
** chat-keep-days.  The value of chat-keep-days can be a floating point
** number.  So, for example, if you only want to keep chat messages for
** 12 hours, set this value to 0.5.
**
** A value of 0.0 or less means that messages are retained forever.
*/

/*
** WEBPAGE: chat
**
** Start up a browser-based chat session.
*/
void chat_webpage(void){
  login_check_credentials();

  @ #chat-input-file-area > .help-buttonlet,
  @ #chat-input-file {
  @   align-self: flex-start;
  @   margin-right: 0.5em;
  @   flex: 0 1 auto;
  @ }
  @ #chat-input-file {
  @   border:1px solid rgba(0,0,0,0);/*avoid UI shift during drop-targeting*/
  @   border-radius: 0.25em;
  @ }
  @ #chat-input-file > input {
  @   flex: 1 0 auto;
  @ }
  @ .chat-timestamp {
  @    font-family: monospace;

  /* New chat messages get inserted immediately after this element */
  @ <span id='message-inject-point'></span>

  builtin_fossil_js_bundle_or("popupwidget", NULL);
  /* Always in-line the javascript for the chat page */
  @ <script nonce="%h(style_nonce())">/* chat.c:%d(__LINE__) */
  @ window.fossilChatInitSize = %d(db_get_int("chat-initial-history",50));
  @ window.addEventListener('load', function(){
  /* We need an onload handler to ensure that window.fossil is
     loaded first. */
  cgi_append_content(builtin_text("chat.js"),-1);
  @ }, false);
  @ </script>

(function(){
  const form = document.querySelector('#chat-form');
  let mxMsg = -50;
  if( window.fossilChatInitSize ) mxMsg = -window.fossilChatInitSize;
  const F = window.fossil, D = F.dom;
  const _me = F.user.name;
  /* State for paste and drag/drop */
  const BlobXferState = {
    dropDetails: document.querySelector('#chat-drop-details'),
    blob: undefined
  };

    setup_menu_entry("Login-Group", "setup_login_group",
      "Manage single sign-on between this repository and others"
      " on the same server");
    setup_menu_entry("Tickets", "tktsetup",
      "Configure the trouble-ticketing system for this repository");
    setup_menu_entry("Wiki", "setup_wiki",
      "Configure the wiki for this repository");
    setup_menu_entry("Chat", "setup_chat",
      "Configure the chatroom");
  }
  setup_menu_entry("Search","srchsetup",
    "Configure the built-in search engine");
  setup_menu_entry("URL Aliases", "waliassetup",
    "Configure URL aliases");
  if( setup_user ){
    setup_menu_entry("Notification", "setup_notification",

  @ enabling, <i>all</i> HTML tags and attributes are accepted in the wiki.
  @ No sanitization is done. This means that it is very possible for malicious
  @ users to inject dangerous HTML, CSS and JavaScript code into your wiki.</p>
  @ <p>This should <strong>only</strong> be enabled when wiki editing is limited
  @ to trusted users. It should <strong>not</strong> be used on a publicly
  @ editable wiki.</p>
  @ (Property: "wiki-use-html")
  @ <hr />
  @ <p><input type="submit"  name="submit" value="Apply Changes" /></p>
  @ </div></form>
  db_end_transaction(0);
  style_finish_page();
}

/*
** WEBPAGE: setup_chat
**
** The "Admin/Chat" page.  Requires Setup privilege.
*/
void setup_chat(void){
  login_check_credentials();
  if( !g.perm.Setup ){
    login_needed(0);
    return;
  }

  style_set_current_feature("setup");
  style_header("Chat Configuration");
  db_begin_transaction();
  @ <form action="%R/setup_chat" method="post"><div>
  login_insert_csrf_secret();
  @ <input type="submit"  name="submit" value="Apply Changes" /></p>
  @ <hr />
  entry_attribute("Initial Chat History Size", 10,
                  "chat-initial-history", "chatih", "50", 0);
  @ <p>When /chat first starts up, it preloads up to this many historical
  @ messages.
  @ (Property: "chat-initial-history")</p>
  @ <hr />
  entry_attribute("Minimum Number Of Historical Messages To Retain", 10,
                  "chat-keep-count", "chatkc", "50", 0);
  @ <p>The chat subsystem purges older messages.  But it will always retain
  @ the N most recent messages where N is the value of this setting.
  @ (Property: "chat-keep-count")</p>
  @ <hr />
  entry_attribute("Maximum Message Age In Days", 10,
                  "chat-keep-days", "chatkd", "7", 0);
  @ <p>Chat message are removed after N days, where N is the value of
  @ this setting.  N may be fractional.  So, for example, to only keep
  @ an historical record of chat messages for 12 hours, set this value
  @ to 0.5.
  @ (Property: "chat-keep-days")</p>
  @ <hr />
  @ <p><input type="submit"  name="submit" value="Apply Changes" /></p>
  @ </div></form>
  db_end_transaction(0);
  style_finish_page();
}