/* Copyright  (C) 2010-2019 The RetroArch team
 *
 * ---------------------------------------------------------------------------------------
 * The following license statement only applies to this file (runtime_file.h).
 * ---------------------------------------------------------------------------------------
 *
 * Permission is hereby granted, free of charge,
 * to any person obtaining a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef __RUNTIME_FILE_H
#define __RUNTIME_FILE_H

#include <retro_common_api.h>
#include <libretro.h>

#include <time.h>
#include <boolean.h>

#include "playlist.h"

RETRO_BEGIN_DECLS

/* Enums */

enum playlist_sublabel_last_played_style_type
{
   PLAYLIST_LAST_PLAYED_STYLE_YMD_HMS = 0,
   PLAYLIST_LAST_PLAYED_STYLE_YMD_HM,
   PLAYLIST_LAST_PLAYED_STYLE_YMD,
   PLAYLIST_LAST_PLAYED_STYLE_YM,
   PLAYLIST_LAST_PLAYED_STYLE_MDYYYY_HMS,
   PLAYLIST_LAST_PLAYED_STYLE_MDYYYY_HM,
   PLAYLIST_LAST_PLAYED_STYLE_MD_HM,
   PLAYLIST_LAST_PLAYED_STYLE_MDYYYY,
   PLAYLIST_LAST_PLAYED_STYLE_MD,
   PLAYLIST_LAST_PLAYED_STYLE_DDMMYYYY_HMS,
   PLAYLIST_LAST_PLAYED_STYLE_DDMMYYYY_HM,
   PLAYLIST_LAST_PLAYED_STYLE_DDMM_HM,
   PLAYLIST_LAST_PLAYED_STYLE_DDMMYYYY,
   PLAYLIST_LAST_PLAYED_STYLE_DDMM,
   PLAYLIST_LAST_PLAYED_STYLE_YMD_HMS_AMPM,
   PLAYLIST_LAST_PLAYED_STYLE_YMD_HM_AMPM,
   PLAYLIST_LAST_PLAYED_STYLE_MDYYYY_HMS_AMPM,
   PLAYLIST_LAST_PLAYED_STYLE_MDYYYY_HM_AMPM,
   PLAYLIST_LAST_PLAYED_STYLE_MD_HM_AMPM,
   PLAYLIST_LAST_PLAYED_STYLE_DDMMYYYY_HMS_AMPM,
   PLAYLIST_LAST_PLAYED_STYLE_DDMMYYYY_HM_AMPM,
   PLAYLIST_LAST_PLAYED_STYLE_DDMM_HM_AMPM,
   PLAYLIST_LAST_PLAYED_STYLE_LAST
};

/* Note: These must be kept synchronised with
 * 'enum menu_timedate_date_separator_type' in
 * 'menu_defines.h' */
enum playlist_sublabel_last_played_date_separator_type
{
   PLAYLIST_LAST_PLAYED_DATE_SEPARATOR_HYPHEN = 0,
   PLAYLIST_LAST_PLAYED_DATE_SEPARATOR_SLASH,
   PLAYLIST_LAST_PLAYED_DATE_SEPARATOR_PERIOD,
   PLAYLIST_LAST_PLAYED_DATE_SEPARATOR_LAST
};

enum playlist_sublabel_runtime
{
   PLAYLIST_RUNTIME_PER_CORE = 0,
   PLAYLIST_RUNTIME_AGGREGATE,
   PLAYLIST_RUNTIME_LAST
};

/* Structs */

typedef struct
{
   unsigned hours;
   unsigned minutes;
   unsigned seconds;
} rtl_runtime_t;

typedef struct
{
   unsigned year;
   unsigned month;
   unsigned day;
   unsigned hour;
   unsigned minute;
   unsigned second;
} rtl_last_played_t;

typedef struct
{
   rtl_runtime_t runtime;           /* unsigned alignment */
   rtl_last_played_t last_played;   /* unsigned alignment */
   char path[PATH_MAX_LENGTH];
} runtime_log_t;

/* Initialisation */

/* Initialise runtime log, loading current parameters
 * if log file exists. Returned object must be free()'d.
 * Returns NULL if content_path and/or core_path are invalid */
runtime_log_t *runtime_log_init(
      const char *content_path,
      const char *core_path,
      const char *dir_runtime_log,
      const char *dir_playlist,
      bool log_per_core);

/* Setters */

/* Set runtime to specified hours, minutes, seconds value */
void runtime_log_set_runtime_hms(runtime_log_t *runtime_log, unsigned hours, unsigned minutes, unsigned seconds);

/* Set runtime to specified microseconds value */
void runtime_log_set_runtime_usec(runtime_log_t *runtime_log, retro_time_t usec);

/* Adds specified hours, minutes, seconds value to current runtime */
void runtime_log_add_runtime_hms(runtime_log_t *runtime_log, unsigned hours, unsigned minutes, unsigned seconds);

/* Adds specified microseconds value to current runtime */
void runtime_log_add_runtime_usec(runtime_log_t *runtime_log, retro_time_t usec);

/* Sets last played entry to specified value */
void runtime_log_set_last_played(runtime_log_t *runtime_log,
      unsigned year, unsigned month, unsigned day,
      unsigned hour, unsigned minute, unsigned second);

/* Sets last played entry to current date/time */
void runtime_log_set_last_played_now(runtime_log_t *runtime_log);

/* Resets log to default (zero) values */
void runtime_log_reset(runtime_log_t *runtime_log);

/* Getters */
/* (Not strictly required, since we can get everything
 * from runtime_log directly - but perhaps it is logically
 * cleaner to have a symmetrical set/get interface) */

/* Gets runtime in hours, minutes, seconds */
void runtime_log_get_runtime_hms(runtime_log_t *runtime_log, unsigned *hours, unsigned *minutes, unsigned *seconds);

/* Gets runtime in microseconds */
void runtime_log_get_runtime_usec(runtime_log_t *runtime_log, retro_time_t *usec);

/* Gets runtime as a pre-formatted string */
void runtime_log_get_runtime_str(runtime_log_t *runtime_log, char *str, size_t len);

/* Gets last played entry values */
void runtime_log_get_last_played(runtime_log_t *runtime_log,
      unsigned *year, unsigned *month, unsigned *day,
      unsigned *hour, unsigned *minute, unsigned *second);

/* Gets last played entry values as a struct tm 'object'
 * (e.g. for printing with strftime()) */
void runtime_log_get_last_played_time(runtime_log_t *runtime_log, struct tm *time_info);

/* Gets last played entry value as a pre-formatted string */
void runtime_log_get_last_played_str(runtime_log_t *runtime_log,
      char *str, size_t len,
      enum playlist_sublabel_last_played_style_type timedate_style,
      enum playlist_sublabel_last_played_date_separator_type date_separator);

/* Status */

/* Returns true if log has a non-zero runtime entry */
bool runtime_log_has_runtime(runtime_log_t *runtime_log);

/* Returns true if log has a non-zero last played entry */
bool runtime_log_has_last_played(runtime_log_t *runtime_log);

/* Saving */

/* Saves specified runtime log to disk */
void runtime_log_save(runtime_log_t *runtime_log);

/* Utility functions */

/* Convert from hours, minutes, seconds to microseconds */
void runtime_log_convert_hms2usec(unsigned hours, unsigned minutes, unsigned seconds, retro_time_t *usec);

/* Convert from microseconds to hours, minutes, seconds */
void runtime_log_convert_usec2hms(retro_time_t usec, unsigned *hours, unsigned *minutes, unsigned *seconds);

/* Playlist manipulation */

/* Updates specified playlist entry runtime values with
 * contents of associated log file */
void runtime_update_playlist(
      playlist_t *playlist, size_t idx,
      const char *dir_runtime_log,
      const char *dir_playlist,
      bool log_per_core,
      enum playlist_sublabel_last_played_style_type timedate_style,
      enum playlist_sublabel_last_played_date_separator_type date_separator);

RETRO_END_DECLS

#endif
