physis 0.5.0

Library for reading and writing FFXIV data.
Documentation 
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// SPDX-FileCopyrightText: 2024 Joshua Goins <josh@redstrate.com>
// SPDX-License-Identifier: GPL-3.0-or-later

use std::io::Cursor;

use crate::ByteSpan;
use binrw::BinRead;
use binrw::binrw;

#[binrw]
#[derive(Debug)]
#[brw(little)]
struct SgbHeader {
    #[br(count = 4)]
    #[bw(pad_size_to = 4)]
    #[bw(map = |x : &String | x.as_bytes())]
    #[br(map = | x: Vec<u8> | String::from_utf8(x).unwrap().trim_matches(char::from(0)).to_string())]
    pub identifier: String,

    file_size: i32,
    total_chunk_count: i32,
}

/// Shared group binary file, usually with the `.sgb` file extension.
///
/// This is basically a "prefab".
#[derive(Debug)]
pub struct Sgb {}

impl Sgb {
    /// Read an existing file.
    pub fn from_existing(buffer: ByteSpan) -> Option<Self> {
        let mut cursor = Cursor::new(buffer);
        SgbHeader::read(&mut cursor).ok()?;

        Some(Sgb {})
    }
}