//! A file-system object. Represents a File or directory.

const std = @import("std");

const dir = @import("inode_data/dir.zig");
const file = @import("inode_data/file.zig");
const misc = @import("inode_data/misc.zig");

pub const Ref = packed struct(u64) {
    block_offset: u16,
    block_start: u32,
    _: u16,
};

pub const InodeType = enum(u16) {
    dir = 1,
    file,
    symlink,
    block_dev,
    char_dev,
    fifo,
    socket,
    ext_dir,
    ext_file,
    ext_symlink,
    ext_block_dev,
    ext_char_dev,
    ext_fifo,
    ext_socket,
};

pub const InodeData = union(InodeType) {
    dir: dir.Dir,
    file: file.File,
    symlink: misc.Symlink,
    block_dev: misc.Dev,
    char_dev: misc.Dev,
    fifo: misc.IPC,
    socket: misc.IPC,
    ext_dir: dir.ExtDir,
    ext_file: file.ExtFile,
    ext_symlink: misc.ExtSymlink,
    ext_block_dev: misc.ExtDev,
    ext_char_dev: misc.ExtDev,
    ext_fifo: misc.ExtIPC,
    ext_socket: misc.ExtIPC,
};

pub const Header = packed struct {
    inode_type: InodeType,
    permissions: u16,
    uid_idx: u16,
    gid_idx: u16,
    mod_time: u32,
    num: u32,
};

const Inode = @This();