ck3save 0.4.3

Ergonomically work with all CK3 saves (regular and ironman)
Documentation 
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#![cfg(ironman)]
use ck3save::{
    models::{Gamestate, HeaderBorrowed, HeaderOwned},
    Ck3File, Encoding, EnvTokens, FailedResolveStrategy,
};

mod utils;

#[test]
fn test_ck3_binary_header() {
    let data = include_bytes!("fixtures/header.bin");
    let file = Ck3File::from_slice(&data[..]).unwrap();
    assert_eq!(file.encoding(), Encoding::Binary);
    let header = file.parse_metadata().unwrap();
    let header: HeaderOwned = header.deserializer().build(&EnvTokens).unwrap();
    assert_eq!(header.meta_data.version, String::from("1.0.2"));
}

#[test]
fn test_ck3_binary_header_borrowed() {
    let data = include_bytes!("fixtures/header.bin");
    let file = Ck3File::from_slice(&data[..]).unwrap();
    assert_eq!(file.encoding(), Encoding::Binary);
    let header = file.parse_metadata().unwrap();
    let header: HeaderBorrowed = header.deserializer().build(&EnvTokens).unwrap();
    assert_eq!(header.meta_data.version, String::from("1.0.2"));
}

#[test]
fn test_ck3_binary_save() -> Result<(), Box<dyn std::error::Error>> {
    let data = utils::request("af_Munso_867_Ironman.ck3");
    let file = Ck3File::from_slice(&data[..])?;
    assert_eq!(file.encoding(), Encoding::BinaryZip);
    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;
    let game: Gamestate = parsed_file.deserializer().build(&EnvTokens)?;
    assert_eq!(game.meta_data.version, String::from("1.0.2"));
    Ok(())
}

#[test]
fn test_ck3_binary_save_header_borrowed() {
    let data = utils::request("af_Munso_867_Ironman.ck3");
    let file = Ck3File::from_slice(&data[..]).unwrap();
    assert_eq!(file.encoding(), Encoding::BinaryZip);
    let header = file.parse_metadata().unwrap();
    let header: HeaderBorrowed = header.deserializer().build(&EnvTokens).unwrap();
    assert_eq!(file.encoding(), Encoding::BinaryZip);
    assert_eq!(header.meta_data.version, "1.0.2");
}

#[test]
fn test_ck3_binary_autosave() -> Result<(), Box<dyn std::error::Error>> {
    let data = utils::request_zip("autosave.zip");

    let file = Ck3File::from_slice(&data[..])?;
    assert_eq!(file.encoding(), Encoding::Binary);

    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;
    let game: Gamestate = parsed_file.deserializer().build(&EnvTokens)?;
    assert_eq!(game.meta_data.version, String::from("1.0.2"));

    let header = file.parse_metadata()?;
    let header: HeaderBorrowed = header.deserializer().build(&EnvTokens)?;
    assert_eq!(header.meta_data.version, String::from("1.0.2"));

    let binary = parsed_file.as_binary().unwrap();
    let out = binary
        .melter()
        .on_failed_resolve(FailedResolveStrategy::Error)
        .melt(&EnvTokens)?;
    twoway::find_bytes(out.data(), b"gold=0.044").unwrap();
    twoway::find_bytes(out.data(), b"gold=4.647").unwrap();

    Ok(())
}

#[test]
fn test_ck3_binary_save_tokens() -> Result<(), Box<dyn std::error::Error>> {
    let data = utils::request("af_Munso_867_Ironman.ck3");
    let file = Ck3File::from_slice(&data[..])?;
    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;
    let save: Gamestate = parsed_file.deserializer().build(&EnvTokens)?;
    assert_eq!(file.encoding(), Encoding::BinaryZip);
    assert_eq!(save.meta_data.version, String::from("1.0.2"));
    Ok(())
}

#[test]
fn test_roundtrip_header_melt() {
    let data = include_bytes!("fixtures/header.bin");
    let file = Ck3File::from_slice(&data[..]).unwrap();
    let header = file.parse_metadata().unwrap();
    let binary = header.as_binary().unwrap();
    let out = binary.melter().melt(&EnvTokens).unwrap();

    let file = Ck3File::from_slice(out.data()).unwrap();
    let header = file.parse_metadata().unwrap();
    let header: HeaderOwned = header.deserializer().build(&EnvTokens).unwrap();

    assert_eq!(file.encoding(), Encoding::Text);
    assert_eq!(header.meta_data.version, String::from("1.0.2"));
}

#[test]
fn test_header_melt() {
    let data = include_bytes!("fixtures/header.bin");
    let file = Ck3File::from_slice(&data[..]).unwrap();
    let header = file.parse_metadata().unwrap();
    let binary = header.as_binary().unwrap();
    let out = binary.melter().melt(&EnvTokens).unwrap();

    let melted = include_bytes!("fixtures/header.melted");
    assert_eq!(&melted[..], out.data());
}

#[test]
fn test_melt_no_crash() {
    let data = include_bytes!("fixtures/melt.crash1");
    assert!(Ck3File::from_slice(&data[..]).is_err());
}

#[test]
fn test_ck3_binary_save_patch_1_3() -> Result<(), Box<dyn std::error::Error>> {
    let data = utils::request("ck3-1.3-test.ck3");
    let file = Ck3File::from_slice(&data[..])?;
    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;

    let binary = parsed_file.as_binary().unwrap();
    let out = binary
        .melter()
        .on_failed_resolve(FailedResolveStrategy::Error)
        .melt(&EnvTokens)?;

    let file = Ck3File::from_slice(out.data())?;
    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;

    let save: Gamestate = parsed_file
        .deserializer()
        .on_failed_resolve(FailedResolveStrategy::Error)
        .build(&EnvTokens)?;
    assert_eq!(save.meta_data.version, String::from("1.3.0"));
    Ok(())
}

#[test]
fn test_ck3_1_0_3_old_cloud_and_local_tokens() -> Result<(), Box<dyn std::error::Error>> {
    let data = utils::request("ck3-1.0.3-local.ck3");

    let file = Ck3File::from_slice(&data[..])?;
    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;
    assert_eq!(file.encoding(), Encoding::BinaryZip);

    let binary = parsed_file.as_binary().unwrap();
    let out = binary
        .melter()
        .on_failed_resolve(FailedResolveStrategy::Error)
        .melt(&EnvTokens)?;

    let file = Ck3File::from_slice(out.data())?;
    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;
    assert_eq!(file.encoding(), Encoding::Text);

    let save: Gamestate = parsed_file
        .deserializer()
        .on_failed_resolve(FailedResolveStrategy::Error)
        .build(&EnvTokens)?;

    assert_eq!(save.meta_data.version, String::from("1.0.3"));
    Ok(())
}

#[test]
fn decode_and_melt_gold_correctly() -> Result<(), Box<dyn std::error::Error>> {
    let data = utils::request("ck3-1.3.1.ck3");
    let file = Ck3File::from_slice(&data)?;
    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;
    let save: Gamestate = parsed_file
        .deserializer()
        .on_failed_resolve(FailedResolveStrategy::Error)
        .build(&EnvTokens)?;

    assert_eq!(file.encoding(), Encoding::BinaryZip);

    let character = save.living.get(&16322).unwrap();
    assert_eq!(
        character.alive_data.as_ref().and_then(|x| x.health),
        Some(4.728)
    );
    assert_eq!(
        character.alive_data.as_ref().and_then(|x| x.income),
        Some(11.087)
    );
    assert_eq!(
        character.alive_data.as_ref().and_then(|x| x.gold),
        Some(133.04397)
    );

    let binary = parsed_file.as_binary().unwrap();
    let out = binary
        .melter()
        .on_failed_resolve(FailedResolveStrategy::Error)
        .melt(&EnvTokens)?;

    twoway::find_bytes(out.data(), b"gold=133.04397").unwrap();
    twoway::find_bytes(out.data(), b"vassal_power_value=200").unwrap();
    Ok(())
}

#[test]
fn parse_patch16() -> Result<(), Box<dyn std::error::Error>> {
    let data = utils::request("ck3-1.6.ck3");
    let file = Ck3File::from_slice(&data)?;
    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;
    let save: Gamestate = parsed_file
        .deserializer()
        .on_failed_resolve(FailedResolveStrategy::Error)
        .build(&EnvTokens)?;

    assert_eq!(save.meta_data.version.as_str(), "1.6.0");
    Ok(())
}

#[test]
fn melt_patch14() -> Result<(), Box<dyn std::error::Error>> {
    let data = utils::request("ck3-1.4-normal.ck3");
    let expected = utils::request_zip("ck3-1.4-normal_melted.zip");
    let file = Ck3File::from_slice(&data[..])?;
    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;

    let binary = parsed_file.as_binary().unwrap();
    let out = binary
        .melter()
        .on_failed_resolve(FailedResolveStrategy::Error)
        .melt(&EnvTokens)?;

    assert!(
        eq(out.data(), &expected),
        "patch 1.4 did not melt currently"
    );
    Ok(())
}

#[test]
fn melt_patch15() -> Result<(), Box<dyn std::error::Error>> {
    let data = utils::request("ck3-1.5-normal.ck3");
    let expected = utils::request_zip("ck3-1.5-normal_melted.zip");
    let file = Ck3File::from_slice(&data[..])?;
    let mut zip_sink = Vec::new();
    let parsed_file = file.parse(&mut zip_sink)?;

    let binary = parsed_file.as_binary().unwrap();
    let out = binary
        .melter()
        .on_failed_resolve(FailedResolveStrategy::Error)
        .melt(&EnvTokens)?;

    assert!(
        eq(out.data(), &expected),
        "patch 1.5 did not melt currently"
    );
    Ok(())
}

fn eq(a: &[u8], b: &[u8]) -> bool {
    for (ai, bi) in a.iter().zip(b.iter()) {
        if ai != bi {
            return false;
        }
    }

    a.len() == b.len()
}