/*    motion.h
 *
 *    Include file for motion.c
 *      Copyright 2000 by Jeroen Vreeken (pe1rxq@amsat.org)
 *      This software is distributed under the GNU public license version 2
 *      See also the file 'COPYING'.
 *
 */

#ifndef _INCLUDE_MOTION_H
#define _INCLUDE_MOTION_H

/* Forward declarations, used in functional definitions of headers */
struct images;
struct image_data;

#include "config.h"

/* Includes */
#if defined(HAVE_MYSQL) || defined(HAVE_MARIADB)
#include <mysql.h>
#endif

#ifdef HAVE_SQLITE3
#include <sqlite3.h>
#endif

#ifdef HAVE_PGSQL
#include <libpq-fe.h>
#endif


#include <stdio.h>
#include <stdlib.h>
#ifndef __USE_GNU
#define __USE_GNU
#endif
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <signal.h>
#include <limits.h>
#include <errno.h>
#include <assert.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <sys/param.h>
#include <stdint.h>
#include <pthread.h>
#include <microhttpd.h>

#if defined(HAVE_PTHREAD_NP_H)
    #include <pthread_np.h>
#endif

#include "logger.h"
#include "conf.h"
#include "stream.h"

#include "track.h"
#include "netcam.h"
#include "netcam_rtsp.h"
#include "ffmpeg.h"

#ifdef HAVE_MMAL
#include "mmalcam.h"
#endif


/**
 * ATTRIBUTE_UNUSED:
 *
 * Macro used to signal to GCC unused function parameters
 */
#ifdef __GNUC__
#ifdef HAVE_ANSIDECL_H
#include <ansidecl.h>
#endif
#ifndef ATTRIBUTE_UNUSED
#define ATTRIBUTE_UNUSED __attribute__((unused))
#endif
#else
#define ATTRIBUTE_UNUSED
#endif

/*
 *  The macro below defines a version of sleep using nanosleep
 * If a signal such as SIG_CHLD interrupts the sleep we just continue sleeping
 */
#define SLEEP(seconds, nanoseconds) {              \
                struct timespec tv;                \
                tv.tv_sec = (seconds);             \
                tv.tv_nsec = (nanoseconds);        \
                while (nanosleep(&tv, &tv) == -1); \
        }

#define DEF_PALETTE             17

/* Default picture settings */
#define DEF_WIDTH              640
#define DEF_HEIGHT             480
#define DEF_QUALITY             75
#define DEF_CHANGES           1500

#define DEF_MAXFRAMERATE        15
#define DEF_NOISELEVEL          32

/* Minimum time between two 'actions' (email, sms, external) */
#define DEF_EVENT_GAP            60  /* 1 minutes */

#define DEF_INPUT               -1
#define DEF_VIDEO_DEVICE         "/dev/video0"

#define THRESHOLD_TUNE_LENGTH  256

#define MISSING_FRAMES_TIMEOUT  30  /* When failing to get picture frame from camera
                                       we reuse the previous frame until
                                       MISSING_FRAMES_TIMEOUT seconds has passed
                                       and then we show a grey image instead
                                     */

#define WATCHDOG_TMO            30   /* 30 sec max motion_loop interval */
#define WATCHDOG_KILL          -10   /* 10 sec grace period before calling thread cancel */

#define CONNECTION_KO           "Lost connection"
#define CONNECTION_OK           "Connection OK"

#define DEF_MAXSTREAMS          10   /* Maximum number of stream clients per camera */
#define DEF_MAXWEBQUEUE         10   /* Maximum number of stream client in queue */

#define DEF_TIMESTAMP           "%Y-%m-%d\\n%T"
#define DEF_EVENTSTAMP          "%Y%m%d%H%M%S"

#define DEF_SNAPPATH            "%v-%Y%m%d%H%M%S-snapshot"
#define DEF_IMAGEPATH           "%v-%Y%m%d%H%M%S-%q"
#define DEF_MOVIEPATH           "%v-%Y%m%d%H%M%S"
#define DEF_TIMEPATH            "%Y%m%d-timelapse"

#define DEF_TIMELAPSE_MODE      "daily"

/* OUTPUT Image types */
#define IMAGE_TYPE_JPEG        0
#define IMAGE_TYPE_PPM         1
#define IMAGE_TYPE_WEBP        2

/* Filetype defines */
#define FTYPE_IMAGE            1
#define FTYPE_IMAGE_SNAPSHOT   2
#define FTYPE_IMAGE_MOTION     4
#define FTYPE_MPEG             8
#define FTYPE_MPEG_MOTION     16
#define FTYPE_MPEG_TIMELAPSE  32

#define FTYPE_MPEG_ANY    (FTYPE_MPEG | FTYPE_MPEG_MOTION | FTYPE_MPEG_TIMELAPSE)
#define FTYPE_IMAGE_ANY   (FTYPE_IMAGE | FTYPE_IMAGE_SNAPSHOT | FTYPE_IMAGE_MOTION)

/* What types of images files do we want to have */
#define NEWIMG_OFF        0
#define NEWIMG_ON         1
#define NEWIMG_FIRST      2
#define NEWIMG_BEST       4
#define NEWIMG_CENTER     8

#define LOCATE_OFF        0
#define LOCATE_ON         1
#define LOCATE_PREVIEW    2
#define LOCATE_BOX        1
#define LOCATE_REDBOX     2
#define LOCATE_CROSS      4
#define LOCATE_REDCROSS   8

#define LOCATE_NORMAL     1
#define LOCATE_BOTH       2

#define UPDATE_REF_FRAME  1
#define RESET_REF_FRAME   2


/*
 * Structure to hold images information
 * The idea is that this should have all information about a picture e.g. diffs, timestamp etc.
 * The exception is the label information, it uses a lot of memory
 * When the image is stored all texts motion marks etc. is written to the image
 * so we only have to send it out when/if we want.
 */

/* A image can have detected motion in it, but dosn't trigger an event, if we use minimum_motion_frames */
#define IMAGE_MOTION     1
#define IMAGE_TRIGGER    2
#define IMAGE_SAVE       4
#define IMAGE_SAVED      8
#define IMAGE_PRECAP    16
#define IMAGE_POSTCAP   32

enum CAMERA_TYPE {
    CAMERA_TYPE_UNKNOWN,
    CAMERA_TYPE_V4L2,
    CAMERA_TYPE_BKTR,
    CAMERA_TYPE_MMAL,
    CAMERA_TYPE_RTSP,
    CAMERA_TYPE_NETCAM
};

enum WEBUI_LEVEL{
  WEBUI_LEVEL_ALWAYS     = 0,
  WEBUI_LEVEL_LIMITED    = 1,
  WEBUI_LEVEL_ADVANCED   = 2,
  WEBUI_LEVEL_RESTRICTED = 3,
  WEBUI_LEVEL_NEVER      = 99
};

struct vdev_usrctrl_ctx {
    char          *ctrl_name;       /* The name or description of the ID as requested by user*/
    int            ctrl_value;      /* The value that the user wants the control set to*/
};

struct vdev_context {
    /* As v4l2 and bktr get rewritten, put thread specific items here
     * Rather than use conf options directly, copy from conf to here
     * to handle cross thread webui changes which could cause problems
     */
    struct vdev_usrctrl_ctx *usrctrl_array;     /*Array of the controls the user specified*/
    int usrctrl_count;                          /*Count of the controls the user specified*/
    int update_parms;                           /*Bool for whether to update the parameters on the device*/
};


struct image_data {
    unsigned char *image_norm;
    unsigned char *image_high;
    int diffs;
    int64_t        idnbr_norm;
    int64_t        idnbr_high;
    struct timeval timestamp_tv;
    int shot;                   /* Sub second timestamp count */

    /*
     * Movement center to img center distance
     * Note: Dist is calculated distX*distX + distY*distY
     */
    unsigned long cent_dist;

    unsigned int flags;         /* Se IMAGE_* defines */

    struct coord location;      /* coordinates for center and size of last motion detection*/

    int total_labels;

};

struct stream_data {
    unsigned char   *jpeg_data; /* Image compressed as JPG */
    long            jpeg_size;  /* The number of bytes for jpg */
    int             cnct_count; /* Counter of the number of connections */
};

/*
 * DIFFERENCES BETWEEN imgs.width, conf.width AND rotate_data.cap_width
 * (and the corresponding height values, of course)
 * ===========================================================================
 * Location      Purpose
 *
 * conf          The values in conf reflect width and height set in the
 *               configuration file. These can be set via http remote control,
 *               but they are not used internally by Motion, so it won't break
 *               anything. These values are transferred to imgs in vid_start.
 *
 * imgs          The values in imgs are the actual output dimensions. Normally
 *               the output dimensions are the same as the capture dimensions,
 *               but for 90 or 270 degrees rotation, they are not. E.g., if
 *               you capture at 320x240, and rotate 90 degrees, the output
 *               dimensions are 240x320.
 *               These values are set from the conf values in vid_start, or
 *               from the first JPEG image in netcam_start. For 90 or 270
 *               degrees rotation, they are swapped in rotate_init.
 *
 * rotate_data   The values in rotate_data are named cap_width and cap_height,
 *               and contain the capture dimensions. The difference between
 *               capture and output dimensions is explained above.
 *               These values are set in rotate_init.
 */

/* date/time drawing, draw.c */
int draw_text(unsigned char *image,
              int width, int height,
              int startx, int starty,
              const char *text, int factor);
int initialize_chars(void);

struct images {
    struct image_data *image_ring;    /* The base address of the image ring buffer */
    int image_ring_size;
    int image_ring_in;                /* Index in image ring buffer we last added a image into */
    int image_ring_out;               /* Index in image ring buffer we want to process next time */

    unsigned char *ref;               /* The reference frame */
    struct image_data img_motion;     /* Picture buffer for motion images */
    int *ref_dyn;                     /* Dynamic objects to be excluded from reference frame */
    struct image_data image_virgin;   /* Last picture frame with no text or locate overlay */
    struct image_data image_vprvcy;   /* Virgin image with the privacy mask applied */
    struct image_data preview_image;  /* Picture buffer for best image when enables */
    unsigned char *mask;              /* Buffer for the mask file */
    unsigned char *smartmask;
    unsigned char *smartmask_final;
    unsigned char *common_buffer;
    unsigned char *substream_image;

    unsigned char *mask_privacy;      /* Buffer for the privacy mask values */
    unsigned char *mask_privacy_uv;   /* Buffer for the privacy U&V values */

    unsigned char *mask_privacy_high;      /* Buffer for the privacy mask values */
    unsigned char *mask_privacy_high_uv;   /* Buffer for the privacy U&V values */

    int *smartmask_buffer;
    int *labels;
    int *labelsize;
    int width;
    int height;
    int type;
    int picture_type;                 /* Output picture type IMAGE_JPEG, IMAGE_PPM */
    int size_norm;                    /* Number of bytes for normal size image */

    int width_high;
    int height_high;
    int size_high;                 /* Number of bytes for high resolution image */

    int motionsize;
    int labelgroup_max;
    int labels_above;
    int labelsize_max;
    int largest_label;
};

enum FLIP_TYPE {
    FLIP_TYPE_NONE,
    FLIP_TYPE_HORIZONTAL,
    FLIP_TYPE_VERTICAL
};

/* Contains data for image rotation, see rotate.c. */
struct rotdata {

    unsigned char *buffer_norm;  /* Temporary buffer for 90 and 270 degrees rotation of normal resolution image. */
    unsigned char *buffer_high;  /* Temporary buffer for 90 and 270 degrees rotation of high resolution image. */
    int degrees;              /* Degrees to rotate; copied from conf.rotate_deg. */
    enum FLIP_TYPE axis;      /* Rotate image over the Horizontal or Vertical axis. */

    int capture_width_norm;            /* Capture width of normal resolution image */
    int capture_height_norm;           /* Capture height of normal resolution image */

    int capture_width_high;            /* Capture width of high resolution image */
    int capture_height_high;           /* Capture height of high resolution image */

};

/*
 *  These used to be global variables but now each thread will have its
 *  own context
 */
struct context {
    FILE *extpipe;
    int extpipe_open;
    char conf_filename[PATH_MAX];
    int from_conf_dir;
    int threadnr;
    unsigned int daemon;
    char pid_file[PATH_MAX];
    char log_file[PATH_MAX];
    char log_type_str[6];
    int log_level;
    unsigned int log_type;

    struct config conf;
    struct images imgs;
    struct trackoptions track;
    int                 track_posx;
    int                 track_posy;

    enum CAMERA_TYPE      camera_type;
    struct netcam_context *netcam;
#ifdef HAVE_MMAL
    struct mmalcam_context *mmalcam;
#endif
    struct rtsp_context *rtsp;              /* this structure contains the context for normal RTSP connection */
    struct rtsp_context *rtsp_high;         /* this structure contains the context for high resolution RTSP connection */

    struct vdev_context *vdev;              /* Structure for v4l2 and bktr device information */

    struct image_data *current_image;       /* Pointer to a structure where the image, diffs etc is stored */
    unsigned int new_img;

    int locate_motion_mode;
    int locate_motion_style;
    int process_thisframe;
    struct rotdata rotate_data;              /* rotation data is thread-specific */

    int noise;
    int threshold;
    int threshold_maximum;
    int diffs_last[THRESHOLD_TUNE_LENGTH];
    int smartmask_speed;


    /* Commands to the motion thread */
    volatile unsigned int snapshot;    /* Make a snapshot */
    volatile unsigned int event_stop;  /* Boolean for whether to stop a event */
    volatile unsigned int event_user;  /* Boolean for whether to user triggered an event */
    volatile unsigned int finish;      /* End the thread */
    volatile unsigned int restart;     /* Restart the thread when it ends */
    /* Is the motion thread running */
    volatile unsigned int running;
    /* Is the web control thread running */
    volatile unsigned int webcontrol_running;
    volatile unsigned int webcontrol_finish;      /* End the thread */
    volatile int watchdog;

    pthread_t thread_id;

    int event_nr;
    int prev_event;
    unsigned long long database_event_id;
    unsigned int lightswitch_framecounter;
    char text_event_string[PATH_MAX];        /* The text for conv. spec. %C - */
    int text_scale;

    int postcap;                             /* downcounter, frames left to to send post event */
    int shots;
    unsigned int detecting_motion;
    struct tm *currenttime_tm;
    struct tm *eventtime_tm;

    time_t currenttime;
    time_t lasttime;
    time_t eventtime;
    time_t connectionlosttime;               /* timestamp from connection lost */

    unsigned int lastrate;
    unsigned int startup_frames;
    unsigned int moved;
    unsigned int pause;
    int missing_frame_counter;               /* counts failed attempts to fetch picture frame from camera */
    unsigned int lost_connection;

    int video_dev;
    int pipe;
    int mpipe;

    struct stream stream;
    int stream_count;

    char hostname[PATH_MAX];
    char *netcam_decoder;

    int sql_mask;

#ifdef HAVE_SQLITE3
    sqlite3 *database_sqlite3;
#endif

#if defined(HAVE_MYSQL) || defined(HAVE_MARIADB)
    MYSQL *database;
#endif

#ifdef HAVE_PGSQL
    PGconn *database_pg;
#endif

    int movie_fps;
    char newfilename[PATH_MAX];
    char extpipefilename[PATH_MAX];
    char extpipecmdline[PATH_MAX];
    int movie_last_shot;

    struct ffmpeg   *ffmpeg_output;
    struct ffmpeg   *ffmpeg_output_motion;
    struct ffmpeg   *ffmpeg_timelapse;
    int             movie_passthrough;

    char timelapsefilename[PATH_MAX];
    char motionfilename[PATH_MAX];

    int area_minx[9], area_miny[9], area_maxx[9], area_maxy[9];
    int areadetect_eventnbr;
    /* ToDo Determine why we need these...just put it all into prepare? */
    unsigned long long int timenow, timebefore;

    unsigned int rate_limit;
    time_t lastframetime;
    int minimum_frame_time_downcounter;
    unsigned int get_image;    /* Flag used to signal that we capture new image when we run the loop */

    long int required_frame_time, frame_delay;

    long int rolling_average_limit;
    long int *rolling_average_data;
    unsigned long int rolling_average;

    int olddiffs;   //only need this in here for a printf later...do we need that printf?
    int smartmask_ratio;
    int smartmask_count;

    int previous_diffs, previous_location_x, previous_location_y;
    unsigned long int time_last_frame, time_current_frame;

    unsigned int smartmask_lastrate;

    unsigned int passflag;  //only purpose is to flag first frame vs all others.....
    int rolling_frame;

    struct MHD_Daemon   *webcontrol_daemon;
    struct MHD_Daemon   *webstream_daemon;
    char                webcontrol_digest_rand[8];
    char                webstream_digest_rand[8];
    int                 camera_id;

    pthread_mutex_t     mutex_stream;

    struct stream_data  stream_norm;    /* Copy of the image to use for web stream*/
    struct stream_data  stream_sub;     /* Copy of the image to use for web stream*/
    struct stream_data  stream_motion;  /* Copy of the image to use for web stream*/
    struct stream_data  stream_source;  /* Copy of the image to use for web stream*/


};

extern pthread_mutex_t global_lock;
extern volatile int threads_running;
extern FILE *ptr_logfile;

/* TLS keys below */
extern pthread_key_t tls_key_threadnr; /* key for thread number */

int http_bindsock(int, int, int);
void * mymalloc(size_t);
void * myrealloc(void *, size_t, const char *);
FILE * myfopen(const char *, const char *);
int myfclose(FILE *);
size_t mystrftime(const struct context *, char *, size_t, const char *, const struct timeval *, const char *, int);
int create_path(const char *);

void util_threadname_set(const char *abbr, int threadnbr, const char *threadname);
void util_threadname_get(char *threadname);
int util_check_passthrough(struct context *cnt);

#endif /* _INCLUDE_MOTION_H */