/****************************************************************************
 * This file is part of the project AqHome.
 * AqHome (c) by 2023 Martin Preuss, all rights reserved.
 *
 * The license for this file can be found in the file COPYING which you
 * should have received along with this file.
 ****************************************************************************/

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif


#include "./http.h"
#include "./aqhomestorage_p.h"

#include "aqhome/msg/endpoint_tty.h"
#include "aqhome/ipc/endpoint_ipc.h"
#include "aqhome/mqtt/endpoint_mqttc.h"
#include "aqhome/http/endpoint_http.h"

#include <gwenhywfar/gwenhywfar.h>
#include <gwenhywfar/text.h>
#include <gwenhywfar/debug.h>
#include <gwenhywfar/endpoint_tcpd.h>
#include <gwenhywfar/endpoint_msgio.h>
#include <gwenhywfar/syncio.h>
#include <gwenhywfar/url.h>

#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif

#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif

#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <time.h>




/* ------------------------------------------------------------------------------------------------
 * defines
 * ------------------------------------------------------------------------------------------------
 */

//#define I18N(msg) msg
#define I18S(msg) msg



/* ------------------------------------------------------------------------------------------------
 * forward declarations
 * ------------------------------------------------------------------------------------------------
 */


static GWEN_MSG *_handleUrl(AQHOME_STORAGE *aqh, const GWEN_MSG *msgReceived, const GWEN_URL *url);
static GWEN_MSG *_handleUrl_login(AQHOME_STORAGE *aqh, const GWEN_MSG *msgReceived, const GWEN_URL *url);



/* ------------------------------------------------------------------------------------------------
 * implementations
 * ------------------------------------------------------------------------------------------------
 */


int AqHomeStorage_AddFile(GWEN_UNUSED AQHOME_STORAGE *aqh, GWEN_UNUSED AQH_SESSION *session, const char *fname, GWEN_BUFFER *buf)
{
  if (fname && *fname) {
    int rv;

    rv=GWEN_SyncIo_Helper_ReadFile(fname, buf);
    if (rv<0) {
      DBG_ERROR(AQH_LOGDOMAIN, "Error reading file \"%s\": %d", fname, rv);
      return rv;
    }
  }

  return 0;
}



int AqHomeStorage_AddSiteHeader(AQHOME_STORAGE *aqh, AQH_SESSION *session, GWEN_BUFFER *buf)
{
  return AqHomeStorage_AddFile(aqh, session, AQHOME_STORAGE_SITEHEADER, buf);
}



int AqHomeStorage_AddSiteFooter(AQHOME_STORAGE *aqh, AQH_SESSION *session, GWEN_BUFFER *buf)
{
  return AqHomeStorage_AddFile(aqh, session, AQHOME_STORAGE_SITEFOOTER, buf);
}



GWEN_MSG *AqHomeStorage_HandleMessage(AQHOME_STORAGE *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *msgReceived)
{
  GWEN_DB_NODE *dbParsedMsgInfo;
  GWEN_DB_NODE *dbCommand;
  GWEN_DB_NODE *dbHeader;
  const char *sCmd;
  const char *sUrl;
  GWEN_URL *gUrl;
  const char *sPath;
  GWEN_MSG *msgToSend;

  dbParsedMsgInfo=GWEN_Msg_GetDbParsedInfo(msgReceived);
  if (dbParsedMsgInfo==NULL) {
    DBG_ERROR(AQH_LOGDOMAIN, "No parsed msg info in received message, SNH");
    return NULL;
  }
  dbCommand=GWEN_DB_GetGroup(dbParsedMsgInfo, GWEN_PATH_FLAGS_PATHMUSTEXIST, "command");
  dbHeader=GWEN_DB_GetGroup(dbParsedMsgInfo, GWEN_PATH_FLAGS_PATHMUSTEXIST, "header");
  if (dbCommand==NULL || dbHeader==NULL) {
    DBG_ERROR(AQH_LOGDOMAIN, "Either command group or headser group missing in parsed msg info, SNH");
    return NULL;
  }

  sCmd=GWEN_DB_GetCharValue(dbCommand, "command", 0, NULL);
  if (!(sCmd && *sCmd)) {
    DBG_ERROR(NULL, "No command in message");
    return NULL;
  }

  sUrl=GWEN_DB_GetCharValue(dbCommand, "url", 0, NULL);
  if (!(sUrl && *sUrl)) {
    DBG_ERROR(NULL, "No url in message");
    return NULL;
  }

  gUrl=GWEN_Url_fromCommandString(sUrl);
  if (gUrl==NULL) {
    DBG_ERROR(AQH_LOGDOMAIN, "Invalid url [%s]", sUrl);
    return NULL;
  }
  sPath=GWEN_Url_GetPath(gUrl);
  if (!(sPath && *sPath)) {
    DBG_ERROR(AQH_LOGDOMAIN, "Invalid URL (no path): [%s]", sUrl);
    GWEN_Url_free(gUrl);
    return NULL;
  }
  /* now we have all info from the incoming http message */

  msgToSend=_handleUrl(aqh, msgReceived, gUrl);
  if (msgToSend==NULL) {
    DBG_ERROR(AQH_LOGDOMAIN, "Error handling url [%s]", sUrl);
  }
  GWEN_Url_free(gUrl);
  return msgToSend;
}



GWEN_MSG *_handleUrl(AQHOME_STORAGE *aqh, const GWEN_MSG *msgReceived, const GWEN_URL *url)
{
  const char *sPath;

  sPath=GWEN_Url_GetPath(url);
  if (strcasecmp(sPath, "/login")==0)
    return _handleUrl_login(aqh, msgReceived, url);
  else {
    DBG_ERROR(NULL, "Invalid URL [%s]", sPath);
    return NULL;
  }
}



GWEN_MSG *_handleUrl_login(AQHOME_STORAGE *aqh, const GWEN_MSG *msgReceived, const GWEN_URL *url)
{
}