#ifndef KIT_FILE_H
#define KIT_FILE_H

#include "dynamic_array.h"
#include "status.h"
#include "string_builder.h"

#include <stdio.h>

#ifdef __cplusplus
extern "C" {
#endif

#if defined(_WIN32) && !defined(__CYGWIN__)
#  define KIT_PATH_DELIM_C '\\'
#  define KIT_PATH_DELIM "\\"
#  define KIT_ENV_HOME "USERPROFILE"
#else
#  define KIT_PATH_DELIM_C '/'
#  define KIT_PATH_DELIM "/"
#  define KIT_ENV_HOME "HOME"
#endif

typedef enum {
  KIT_PATH_NONE,
  KIT_PATH_FILE,
  KIT_PATH_FOLDER
} kit_path_type_t;

typedef struct {
  kit_status_t status;

  i64 time_modified_sec;
  i32 time_modified_nsec;
  i64 size;
} kit_file_info_t;

typedef struct {
  kit_status_t status;
  KIT_DA(kit_str_builder_t) files;
} kit_path_list_t;

enum { KIT_FILE_MAP_PRIVATE, KIT_FILE_MAP_SHARED };

typedef struct {
  kit_status_t status;
  i64          size;
  u8          *bytes;
#if defined(_WIN32) && !defined(__CYGWIN__)
  void *_file;
  void *_map;
#else
  int _fd;
#endif
} kit_mapped_file_t;

kit_str_builder_t kit_get_env(kit_str_t name, kit_allocator_t *alloc);

kit_str_builder_t kit_path_norm(kit_str_t        path,
                                kit_allocator_t *alloc);

kit_str_builder_t kit_path_join(kit_str_t left, kit_str_t right,
                                kit_allocator_t *alloc);

kit_str_builder_t kit_path_user(kit_allocator_t *alloc);

kit_str_builder_t kit_path_cache(kit_allocator_t *alloc);

kit_str_builder_t kit_path_data(kit_allocator_t *alloc);

kit_str_t kit_path_index(kit_str_t path, i64 index);

kit_str_t kit_path_take(kit_str_t path, i64 count);

kit_status_t kit_folder_create(kit_str_t path);

kit_status_t kit_folder_create_recursive(kit_str_t path);

kit_status_t kit_file_remove(kit_str_t path);

kit_status_t kit_folder_remove(kit_str_t path);

kit_status_t kit_file_remove_recursive(kit_str_t        path,
                                       kit_allocator_t *alloc);

kit_path_type_t kit_path_type(kit_str_t path);

kit_file_info_t kit_file_info(kit_str_t path);

kit_path_list_t kit_folder_enum(kit_str_t        path,
                                kit_allocator_t *alloc);

void kit_path_list_destroy(kit_path_list_t list);

kit_mapped_file_t kit_file_map(kit_str_t path, i64 size, i32 mode);
kit_status_t      kit_file_sync(kit_mapped_file_t *mf);
kit_status_t      kit_file_unmap(kit_mapped_file_t *mf);

#ifdef __cplusplus
}
#endif

#ifndef KIT_DISABLE_SHORT_NAMES
#  define path_type_t kit_path_type_t
#  define file_info_t kit_file_info_t
#  define path_list_t kit_path_list_t
#  define mapped_file_t kit_mapped_file_t

#  define get_env kit_get_env
#  define path_norm kit_path_norm
#  define path_join kit_path_join
#  define path_user kit_path_user
#  define path_cache kit_path_cache
#  define path_data kit_path_data
#  define path_index kit_path_index
#  define path_take kit_path_take
#  define folder_create kit_folder_create
#  define folder_create_recursive kit_folder_create_recursive
#  define file_remove kit_file_remove
#  define folder_remove kit_folder_remove
#  define file_remove_recursive kit_file_remove_recursive
#  define path_type kit_path_type
#  define file_info kit_file_info
#  define folder_enum kit_folder_enum
#  define path_list_destroy kit_path_list_destroy
#  define file_map kit_file_map
#  define file_sync kit_file_sync
#  define file_unmap kit_file_unmap

#  define FILE_MAP_PRIVATE KIT_FILE_MAP_PRIVATE
#  define FILE_MAP_SHARED KIT_FILE_MAP_SHARED

#  define PATH_DELIM_C KIT_PATH_DELIM_C
#  define PATH_DELIM KIT_PATH_DELIM
#  define ENV_HOME KIT_ENV_HOME

#  define PATH_NONE KIT_PATH_NONE
#  define PATH_FILE KIT_PATH_FILE
#  define PATH_FOLDER KIT_PATH_FOLDER
#endif

#endif