module os

// Ref - winnt.h
const (
	success = 0 // ERROR_SUCCESS
	error_insufficient_buffer = 130
)

const (
	file_share_read   = 1
	file_share_write  = 2
	file_share_delete = 4
)

const (
	file_notify_change_file_name   = 1
	file_notify_change_dir_name    = 2
	file_notify_change_attributes  = 4
	file_notify_change_size        = 8
	file_notify_change_last_write  = 16
	file_notify_change_last_access = 32
	file_notify_change_creation    = 64
	file_notify_change_security    = 128
)

const (
	file_action_added              = 1
	file_action_removed            = 2
	file_action_modified           = 3
	file_action_renamed_old_name   = 4
	file_action_renamed_new_name   = 5
)

const (
	file_attr_readonly                 = 0x1
	file_attr_hidden                   = 0x2
	file_attr_system                   = 0x4
	file_attr_directory                = 0x10
	file_attr_archive                  = 0x20
	file_attr_device                   = 0x40
	file_attr_normal                   = 0x80
	file_attr_temporary                = 0x100
	file_attr_sparse_file              = 0x200
	file_attr_reparse_point            = 0x400
	file_attr_compressed               = 0x800
	file_attr_offline                  = 0x1000
	file_attr_not_content_indexed      = 0x2000
	file_attr_encrypted                = 0x4000
	file_attr_integrity_stream         = 0x8000
	file_attr_virtual                  = 0x10000
	file_attr_no_scrub_data            = 0x20000
	// file_attr_recall_on_open        = u32(0x...)
	// file_attr_recall_on_data_access = u32(0x...)
)

const (
	file_type_disk = 0x1
	file_type_char = 0x2
	file_type_pipe = 0x3

	file_type_unknown = 0x0
)

const (
	file_invalid_file_id = (-1)
)

const(
	invalid_handle_value = voidptr(-1)
)

// https://docs.microsoft.com/en-us/windows/console/setconsolemode
const (
    // Input Buffer
    enable_echo_input                  = 0x0004
    enable_extended_flags              = 0x0080
    enable_insert_mode                 = 0x0020
    enable_line_input                  = 0x0002
    enable_mouse_input                 = 0x0010
    enable_processed_input             = 0x0001
    enable_quick_edit_mode             = 0x0040
    enable_window_input                = 0x0008
    enable_virtual_terminal_input      = 0x0200
    // Output Screen Buffer
    enable_processed_output            = 0x0001
    enable_wrap_at_eol_output          = 0x0002
    enable_virtual_terminal_processing = 0x0004
    disable_newline_auto_return        = 0x0008
    enable_lvb_grid_worldwide          = 0x0010
)

// File modes
const (
	o_rdonly	= 0			// open the file read-only.
	o_wronly	= 1			// open the file write-only.
	o_rdwr		= 2			// open the file read-write.
	o_append	= 0x0008	// append data to the file when writing.
	o_create	= 0x0100	// create a new file if none exists.
	o_trunc		= 0x0200	// truncate regular writable file when opened.
	o_excl		= 0x0400	// used with o_create, file must not exist.
	o_sync		= 0			// open for synchronous I/O (ignored on Windows)
	o_noctty	= 0			// make file non-controlling tty (ignored on Windows)
	o_nonblock	= 0			// don't block on opening file (ignored on Windows)
)