@   mdel INT,         -- msgid of another message to delete
@   file  BLOB        -- Text of the uploaded file, or NULL
@ );
;


/*
** Create or rebuild the /chat search index. Requires that the
** repository.chat table exists. If bForce is true, it will drop the
** chatfts1 table and recreate/reindex it. If bForce is 0, it will
** only index the chat content if the chatfts1 table does not already
** exist.
*/
void chat_rebuild_index(int bForce){
  if( bForce!=0 ){
    db_multi_exec("DROP TABLE IF EXISTS chatfts1");
  }
  if( bForce!=0 || !db_table_exists("repository", "chatfts1") ){
    const int tokType = search_tokenizer_type(0);
    const char *zTokenizer = search_tokenize_arg_for_type(
      tokType==FTS5TOK_NONE ? FTS5TOK_PORTER : tokType
      /* Special case: if fts search is disabled for the main repo
      ** content, use a default tokenizer here. */
    );
    assert( zTokenizer && zTokenizer[0] );
    db_multi_exec(
      "CREATE VIRTUAL TABLE repository.chatfts1 USING fts5("
      "    xmsg, content=chat, content_rowid=msgid%s"
      ");"
      "INSERT INTO repository.chatfts1(chatfts1) VALUES('rebuild');",
      zTokenizer/*safe-for-%s*/
    );
  }
}

/*
** Make sure the repository data tables used by chat exist.  Create
** them if they do not. Set up TEMP triggers (if needed) to update the
** chatfts1 table as the chat table is updated.
*/
static void chat_create_tables(void){
  if( !db_table_exists("repository","chat") ){
    db_multi_exec(zChatSchema1/*works-like:""*/);
  }else if( !db_table_has_column("repository","chat","lmtime") ){
    if( !db_table_has_column("repository","chat","mdel") ){
      db_multi_exec("ALTER TABLE chat ADD COLUMN mdel INT");
    }
    db_multi_exec("ALTER TABLE chat ADD COLUMN lmtime TEXT");
  }
  chat_rebuild_index(0);

  db_multi_exec(









    "CREATE TEMP TRIGGER IF NOT EXISTS chat_ai AFTER INSERT ON chat BEGIN "
    "  INSERT INTO chatfts1(rowid, xmsg) VALUES(new.msgid, new.xmsg);"
    "END;"
    "CREATE TEMP TRIGGER IF NOT EXISTS chat_ad AFTER DELETE ON chat BEGIN "
    "  INSERT INTO chatfts1(chatfts1, rowid, xmsg) "
    "    VALUES('delete', old.msgid, old.xmsg);"
    "END;"
  );
}

/*

@ CREATE VIRTUAL TABLE IF NOT EXISTS repository.ftsidx
@   USING fts5(content="ftscontent", title, body%s);
;
static const char zFtsDrop[] =
@ DROP TABLE IF EXISTS repository.ftsidx;
@ DROP VIEW IF EXISTS repository.ftscontent;
@ DROP TABLE IF EXISTS repository.ftsdocs;
@ DROP TABLE IF EXISTS repository.chatfts1;
;

#if INTERFACE
/*
** Values for the search-tokenizer config option.
*/
#define FTS5TOK_NONE      0 /* disabled */

    iFtsTokenizer = FTS5TOK_TRIGRAM;
  }else{
    iFtsTokenizer = is_truth(z) ? FTS5TOK_PORTER : FTS5TOK_NONE;
  }
  fossil_free(z);
  return iFtsTokenizer;
}

/*
** Returns a string in the form ",tokenize=X", where X is the string
** counterpart of the given FTS5TOK_xyz value.  Returns "" if tokType
** does not correspond to a known FTS5 tokenizer.
*/
const char * search_tokenize_arg_for_type(int tokType){
  switch( tokType ){
    case FTS5TOK_PORTER: return ",tokenize=porter";
    case FTS5TOK_UNICODE61: return ",tokenize=unicode61";
    case FTS5TOK_TRIGRAM: return ",tokenize=trigram";
    case FTS5TOK_NONE:
    default: return "";
  }
}

/*
** Returns a string value suitable for use as the search-tokenizer
** setting's value, depending on the value of z. If z is 0 then the
** current search-tokenizer value is used as the basis for formulating
** the result (which may differ from the current value but will have
** the same meaning). Any unknown/unsupported value is interpreted as

}

/*
** Create or drop the tables associated with a full-text index.
*/
static int searchIdxExists = -1;
void search_create_index(void){

  const char *zExtra =
    search_tokenize_arg_for_type(search_tokenizer_type(0));



  assert( zExtra );

  search_sql_setup(g.db);
  db_multi_exec(zFtsSchema/*works-like:"%s"*/, zExtra/*safe-for-%s*/);
  searchIdxExists = 1;
}
void search_drop_index(void){
  db_multi_exec(zFtsDrop/*works-like:""*/);
  searchIdxExists = 0;

*/
void search_rebuild_index(void){
  fossil_print("rebuilding the search index...");
  fflush(stdout);
  search_create_index();
  search_fill_index();
  search_update_index(search_restrict(SRCH_ALL));
  if( db_table_exists("repository","chat") ){
    chat_rebuild_index(1);
  }
  fossil_print(" done\n");
}

/*
** COMMAND: fts-config*
**
** Usage: fossil fts-config ?SUBCOMMAND? ?ARGUMENT?

  display: none;
}
body.chat #chat-user-list .chat-user.selected {
  font-weight: bold;
  text-decoration: underline;
}

body.chat .searchForm {
  margin-top: 1em;
}
body.chat .spacer-widget button {
  margin-left: 1ex;
  margin-right: 1ex;
  display: block;



  margin-top: 0.5em;




  margin-bottom: 0.5em;
}





body.chat .anim-rotate-360 {
  animation: rotate-360 750ms linear;
}
@keyframes rotate-360 {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }