//
// ZoneMinder Configuration, $Date$, $Revision$
// Copyright (C) 2001-2008 Philip Coombes
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//

#ifndef ZM_CONFIG_H
#define ZM_CONFIG_H

#if !defined(PATH_MAX)
#define PATH_MAX 1024
#endif

#include "config.h"
#include "zm_config_defines.h"
#include "zm_config_data.h"

#include <string>

#ifdef HAVE_LIBAVFORMAT
#define ZM_HAS_FFMPEG       1
#endif // HAVE_LIBAVFORMAT

#define ZM_MAX_IMAGE_WIDTH    2048        // The largest image we imagine ever handling
#define ZM_MAX_IMAGE_HEIGHT    1536        // The largest image we imagine ever handling
#define ZM_MAX_IMAGE_COLOURS    4        // The largest image we imagine ever handling
#define ZM_MAX_IMAGE_DIM    (ZM_MAX_IMAGE_WIDTH*ZM_MAX_IMAGE_HEIGHT)
#define ZM_MAX_IMAGE_SIZE    (ZM_MAX_IMAGE_DIM*ZM_MAX_IMAGE_COLOURS)

#define ZM_SCALE_BASE      100          // The factor by which we bump up 'scale' to simulate FP
#define ZM_RATE_BASE      100          // The factor by which we bump up 'rate' to simulate FP

#define ZM_SQL_BATCH_SIZE     50          // Limit the size of multi-row SQL statements
#define ZM_SQL_SML_BUFSIZ     256         // Size of SQL buffer
#define ZM_SQL_MED_BUFSIZ     1024        // Size of SQL buffer
#define ZM_SQL_LGE_BUFSIZ     8192        // Size of SQL buffer

#define ZM_NETWORK_BUFSIZ     32768         // Size of network buffer

#define ZM_MAX_FPS        30          // The maximum frame rate we expect to handle
#define ZM_SAMPLE_RATE      int(1000000/ZM_MAX_FPS) // A general nyquist sample frequency for delays etc
#define ZM_SUSPENDED_RATE     int(1000000/4) // A slower rate for when disabled etc

extern void zmLoadConfig();

extern void process_configfile(char const *configFile);

struct StaticConfig {
  std::string DB_HOST;
  std::string DB_NAME;
  std::string DB_USER;
  std::string DB_PASS;
  std::string DB_SSL_CA_CERT;
  std::string DB_SSL_CLIENT_KEY;
  std::string DB_SSL_CLIENT_CERT;
  std::string PATH_WEB;
  std::string SERVER_NAME;
  unsigned int SERVER_ID;
  std::string DIR_EVENTS;
  std::string DIR_SOUNDS;
  std::string DIR_EXPORTS;
  std::string PATH_ZMS;
  std::string PATH_MAP;
  std::string PATH_SOCKS;
  std::string PATH_LOGS;
  std::string PATH_SWAP;
  std::string PATH_ARP;
  char    capture_file_format[PATH_MAX];
  char    analyse_file_format[PATH_MAX];
  char    general_file_format[PATH_MAX];
  char    video_file_format[PATH_MAX];
};

extern StaticConfig staticConfig;

class ConfigItem {
private:
  char *name;
  char *value;
  char *type;

  mutable enum { CFG_UNKNOWN, CFG_BOOLEAN, CFG_INTEGER, CFG_DECIMAL, CFG_STRING } cfg_type;
  mutable union {
    bool boolean_value;
    int integer_value;
    double decimal_value;
    char *string_value;
  } cfg_value;
  mutable bool accessed;

public:
  ConfigItem(const char *p_name, const char *p_value, const char *const p_type);
  ConfigItem(const ConfigItem &);
  ~ConfigItem();
  void Copy(const ConfigItem&);
  void ConvertValue() const;
  bool BooleanValue() const;
  int IntegerValue() const;
  double DecimalValue() const;
  const char *StringValue() const;

  ConfigItem &operator=(const ConfigItem &item) {
    Copy(item);
    return *this;
  }
  inline operator bool() const {
    return BooleanValue();
  }
  inline operator int() const {
    return IntegerValue();
  }
  inline operator double() const {
    return DecimalValue();
  }
  inline operator const char *() const {
    return StringValue();
  }
};

class Config {
public:
  ZM_CFG_DECLARE_LIST

private:
  int n_items;
  ConfigItem **items;

public:
  Config();
  ~Config();

  void Load();
  void Assign();
  const ConfigItem &Item( int id );
};

extern Config config;

#endif // ZM_CONFIG_H