package io.gitlab.jfronny.glaunch.install.steps;

import io.gitlab.jfronny.glaunch.GLaunch;
import io.gitlab.jfronny.glaunch.install.SetupStepInfo;
import io.gitlab.jfronny.glaunch.install.Step;
import io.gitlab.jfronny.glaunch.model.Rules;
import io.gitlab.jfronny.glaunch.model.VersionInfo;
import io.gitlab.jfronny.glaunch.util.Utils;

import java.io.IOException;

public class DownloadLibrariesStep implements Step {
    @Override
    public void execute(SetupStepInfo info) throws IOException {
        //TODO feedback
        mainLoop: for (VersionInfo.Library library : info.version().libraries) {
            for (Rules rule : library.rules) {
                if (!rule.allow()) continue mainLoop;
            }
            if (library.classifiers != null) {
                downloadLib(switch (Utils.getOs()) {
                    case "osx" -> library.classifiers.nativesMacos;
                    case "windows" -> library.classifiers.nativesWindows;
                    case "linux" -> library.classifiers.nativesLinux;
                    default -> throw new RuntimeException("Not a valid OS");
                });
            }
            downloadLib(library.artifact);
        }
    }

    private void downloadLib(VersionInfo.Library.Artifact artifact) throws IOException {
        //TODO allow maven-like download for fabric
        Utils.downloadFile(artifact.url, artifact.sha1, GLaunch.LIBRARIES_DIR.resolve(artifact.path));
    }
}