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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* weather-priv.h - Private header for weather server functions.
*
* 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, see
* <https://www.gnu.org/licenses/>.
*/
#ifndef __WEATHER_PRIV_H_
#define __WEATHER_PRIV_H_
#include "config.h"
#include <time.h>
#include <libintl.h>
#include <math.h>
#include <gio/gio.h>
#include <libsoup/soup.h>
#include <glib/gi18n-lib.h>
#include "gweather-weather.h"
#include "gweather-location.h"
#include "gweather-db.h"
#define INVALID_IDX G_MAXUINT16
#define IDX_VALID(idx) ((idx) >= 0 && (idx) < 0xffff)
#define EMPTY_TO_NULL(s) ((s)[0] == '\0' ? NULL : (s))
void _gweather_gettext_init (void);
typedef struct {
GMappedFile *map;
DbWorldRef world;
DbArrayofLocationRef locations_ref;
DbWorldTimezonesRef timezones_ref;
GPtrArray *locations;
GPtrArray *timezones;
time_t year_start;
time_t year_end;
} GWeatherDb;
struct _GWeatherLocation {
GWeatherDb *db;
guint db_idx;
DbLocationRef ref;
/* Attributes with _ may be fetched/filled from the database on the fly */
char *_english_name, *_local_name, *_local_sort_name, *_english_sort_name;
guint16 parent_idx; /* From the DB, except for nearest clones */
GWeatherLocation *_parent, **_children;
GWeatherTimezone *_timezone;
GWeatherLocationLevel level;
char *_country_code;
guint16 tz_hint_idx;
char *_station_code;
double latitude, longitude;
gboolean latlon_valid;
int ref_count;
};
#define WEATHER_LOCATION_CODE_LEN 4
typedef struct {
gchar *name;
gchar *code;
gchar *zone;
gchar *radar;
gboolean latlon_valid;
gdouble latitude;
gdouble longitude;
gchar *country_code;
gchar *tz_hint;
} WeatherLocation;
GWeatherLocation *_gweather_location_new_detached (GWeatherLocation *nearest_station,
const char *name,
gboolean latlon_valid,
gdouble latitude,
gdouble longitude);
void _gweather_location_update_weather_location (GWeatherLocation *gloc,
WeatherLocation *loc);
GWeatherTimezone * _gweather_timezone_ref_for_idx (GWeatherDb *db,
guint idx);
/*
* Weather information.
*/
typedef gdouble GWeatherTemperature;
typedef gdouble GWeatherHumidity;
typedef gdouble GWeatherWindSpeed;
typedef gdouble GWeatherPressure;
typedef gdouble GWeatherVisibility;
typedef time_t GWeatherUpdate;
struct _GWeatherInfo {
GObject parent_instance;
GWeatherProvider providers;
GSettings *settings;
gboolean valid;
gboolean network_error;
gboolean sunriseValid;
gboolean sunsetValid;
gboolean midnightSun;
gboolean polarNight;
gboolean moonValid;
gboolean tempMinMaxValid;
/* TRUE if we don't need to calc humidity from
temperature and dew point (and conversely, we
need to calculate the dew point from temperature
and humidity)
*/
gboolean hasHumidity;
WeatherLocation location;
GWeatherLocation *glocation;
GWeatherUpdate update;
GWeatherUpdate current_time;
GWeatherSky sky;
GWeatherConditions cond;
GWeatherTemperature temp;
GWeatherTemperature temp_min;
GWeatherTemperature temp_max;
GWeatherTemperature dew;
GWeatherHumidity humidity;
GWeatherWindDirection wind;
GWeatherWindSpeed windspeed;
GWeatherPressure pressure;
GWeatherVisibility visibility;
GWeatherUpdate sunrise;
GWeatherUpdate sunset;
GWeatherMoonPhase moonphase;
GWeatherMoonLatitude moonlatitude;
GSList *forecast_list; /* list of GWeatherInfo* for the forecast, NULL if not available */
gchar *forecast_attribution;
gchar *radar_buffer;
gchar *radar_url;
GdkPixbufLoader *radar_loader;
GdkPixbufAnimation *radar;
SoupSession *session;
GSList *requests_pending;
};
/* Values common to the parsing source files */
#define DATA_SIZE 5000
#define CONST_DIGITS "0123456789"
#define CONST_ALPHABET "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
/* Units conversions and names */
#define TEMP_F_TO_C(f) (((f) - 32.0) * 0.555556)
#define TEMP_F_TO_K(f) (TEMP_F_TO_C (f) + 273.15)
#define TEMP_C_TO_F(c) (((c) * 1.8) + 32.0)
#define WINDSPEED_KNOTS_TO_KPH(knots) ((knots) * 1.851965)
#define WINDSPEED_KNOTS_TO_MPH(knots) ((knots) * 1.150779)
#define WINDSPEED_KNOTS_TO_MS(knots) ((knots) * 0.514444)
#define WINDSPEED_MS_TO_KNOTS(ms) ((ms) / 0.514444)
/* 1 bft ~= (1 m/s / 0.836) ^ (2/3) */
#define WINDSPEED_KNOTS_TO_BFT(knots) (pow ((knots) * 0.615363, 0.666666))
#define PRESSURE_INCH_TO_KPA(inch) ((inch) * 3.386)
#define PRESSURE_INCH_TO_HPA(inch) ((inch) * 33.86)
#define PRESSURE_INCH_TO_MM(inch) ((inch) * 25.40005)
#define PRESSURE_INCH_TO_MB(inch) (PRESSURE_INCH_TO_HPA (inch))
#define PRESSURE_INCH_TO_ATM(inch) ((inch) * 0.033421052)
#define PRESSURE_MBAR_TO_INCH(mbar) ((mbar) * 0.029533373)
#define VISIBILITY_SM_TO_KM(sm) ((sm) * 1.609344)
#define VISIBILITY_SM_TO_M(sm) (VISIBILITY_SM_TO_KM (sm) * 1000)
#define DEGREES_TO_RADIANS(deg) ((fmod ((deg),360.) / 180.) * M_PI)
#define RADIANS_TO_DEGREES(rad) ((rad) * 180. / M_PI)
#define RADIANS_TO_HOURS(rad) ((rad) * 12. / M_PI)
char *_radians_to_degrees_str (gdouble radians);
/*
* Planetary Mean Orbit and their progressions from J2000 are based on the
* values in http://ssd.jpl.nasa.gov/txt/aprx_pos_planets.pdf
* converting longitudes from heliocentric to geocentric coordinates (+180)
*/
#define EPOCH_TO_J2000(t) ((gdouble)(t)-946727935.816)
#define MEAN_ECLIPTIC_LONGITUDE(d) (280.46457166 + (d)/36525.*35999.37244981)
#define SOL_PROGRESSION (360./365.242191)
#define PERIGEE_LONGITUDE(d) (282.93768193 + (d)/36525.*0.32327364)
void metar_start_open (GWeatherInfo *info);
gboolean iwin_start_open (GWeatherInfo *info);
gboolean metno_start_open (GWeatherInfo *info);
gboolean owm_start_open (GWeatherInfo *info);
gboolean metar_parse (gchar *metar,
GWeatherInfo *info);
void _gweather_info_begin_request (GWeatherInfo *info,
SoupMessage *message);
void _gweather_info_request_done (GWeatherInfo *info,
SoupMessage *message);
void ecl2equ (gdouble t,
gdouble eclipLon,
gdouble eclipLat,
gdouble *ra,
gdouble *decl);
gdouble sunEclipLongitude (time_t t);
void _gweather_info_ensure_sun (GWeatherInfo *info);
void _gweather_info_ensure_moon (GWeatherInfo *info);
void free_forecast_list (GWeatherInfo *info);
GWeatherInfo *_gweather_info_new_clone (GWeatherInfo *original);
#endif /* __WEATHER_PRIV_H_ */
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