ireko/src/lib.rs

pub mod array_property;
pub mod bool_property;
mod build_data;
mod common;
pub mod float_property;
mod guid;
pub mod int_property;
mod linear_color;
pub mod map_property;
mod name_property;
mod primary_asset_id;
mod primary_asset_type;
pub mod set_property;
pub mod str_property;
pub mod struct_property;
mod structs;

use binrw::helpers::until_eof;

use crate::array_property::ArrayProperty;
use crate::bool_property::BoolProperty;
use crate::common::{read_string_with_length, write_string_with_length};
use crate::float_property::FloatProperty;
use crate::int_property::IntProperty;
use crate::map_property::MapProperty;
use crate::set_property::SetProperty;
use crate::str_property::StrProperty;
use crate::struct_property::StructProperty;
use binrw::{BinRead, BinResult, binrw};

// Used in ArrayProperty exclusively, but could be used instead of magic above
#[binrw]
#[derive(Debug)]
#[br(import { magic: &str, name: &str })]
pub enum Property {
    #[br(pre_assert("NameProperty" == magic))]
    Name(StrProperty),
    #[br(pre_assert("StructProperty" == magic))]
    Struct(StructProperty),
    #[br(pre_assert("FloatProperty" == magic))]
    Float(FloatProperty),
    #[br(pre_assert("StrProperty" == magic))]
    String(StrProperty),
    #[br(pre_assert("BoolProperty" == magic))]
    Bool(BoolProperty),
    #[br(pre_assert("IntProperty" == magic))]
    Int(IntProperty),
    #[br(pre_assert("ArrayProperty" == magic))]
    Array(ArrayProperty),
    #[br(pre_assert("MapProperty" == magic))]
    Map(MapProperty),
    #[br(pre_assert("SetProperty" == magic))]
    Set {
        #[br(args(name))]
        value: SetProperty,
    },
}

#[binrw]
#[derive(Debug)]
pub struct Entry {
    #[br(parse_with = read_string_with_length)]
    #[bw(write_with = write_string_with_length)]
    pub name: String,

    #[br(parse_with = read_string_with_length)]
    #[bw(write_with = write_string_with_length)]
    #[br(if(name != "None"))]
    pub type_name: String,

    #[br(if(name != "None"), args { magic: &type_name, name: &name })]
    pub r#type: Option<Property>,
}

#[binrw::parser(reader, endian)]
fn custom_tagged_object_parser(size_in_bytes: u32) -> BinResult<Vec<Entry>> {
    let mut result = Vec::<Entry>::new();

    let mut current = reader.stream_position()?;
    let end = current + size_in_bytes as u64;

    while current < end {
        result.push(Entry::read_options(reader, endian, ())?);
        current = reader.stream_position()?;
    }
    Ok(result)
}

#[binrw]
#[derive(Debug)]
pub struct TaggedObject {
    pub size_in_bytes: u32,
    //#[br(parse_with = custom_tagged_object_parser, args(size_in_bytes))]
    //#[br(parse_with = until(|entry: &Entry| entry.name == "None"))]
    #[br(parse_with = until_eof)]
    pub entries: Vec<Entry>,
}

impl TaggedObject {
    pub fn entry(&self, key: &str) -> Option<&Entry> {
        let entries: Vec<&Entry> = self.entries.iter().filter(|e| e.name == key).collect();

        entries.first().copied()
    }
}

#[binrw]
#[derive(Debug)]
pub struct TaggedSerialization {
    // Excluding the first four bytes, which is this
    pub size_in_bytes: u32,
    #[br(parse_with = until_eof)]
    pub objs: Vec<TaggedObject>,
}

#[binrw]
#[derive(Debug)]
pub struct CompressedSaveFile {
    pub magic: u64,
    pub compressed_size: u64,
    pub a_compresed_size: u64,
    pub a_uncompresed_size: u64,
    pub b_compresed_size: u64,
    pub b_uncompresed_size: u64,
    #[br(count = a_compresed_size)]
    pub compressed_data: Vec<u8>,
}