wasvy 0.0.9

WASI-powered modding for the Bevy engine
Documentation 
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use std::{fs, path::PathBuf};

use anyhow::Result;
use bevy_asset::{AssetPlugin, io::file::FileAssetReader};
use bevy_ecs::prelude::*;
use serde::Serialize;
use serde_json::Value;

use crate::devtools::Devtools;

#[derive(Resource, Serialize)]
#[component(immutable)]
pub struct Metadata {
    #[serde(flatten)]
    devtools: Devtools,
    asset_dir: PathBuf,
    current_exe: PathBuf,
}

impl Metadata {
    pub fn new(devtools: Devtools, asset_plugin: &AssetPlugin) -> Self {
        let reader = FileAssetReader::new(&asset_plugin.file_path);
        let asset_dir = reader.root_path();
        if !asset_dir.exists() {
            let _ = fs::create_dir_all(asset_dir);
        }
        let asset_dir = fs::canonicalize(asset_dir).expect("able to canonicalize asset file path");
        let current_exe = std::env::current_exe()
            .expect("able to get current executable path")
            .canonicalize()
            .expect("able to canonicalize executable path");
        Self {
            devtools,
            asset_dir,
            current_exe,
        }
    }
}

pub fn metadata(_: In<Option<Value>>, metadata: Res<Metadata>) -> Result<Value> {
    Ok(serde_json::to_value(&*metadata)?)
}