package tech.nevets.jaml.util;

import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import org.apache.commons.io.FileUtils;
import tech.nevets.jaml.JAML;
import tech.nevets.jaml.objects.Version;

import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.nio.charset.StandardCharsets;

public class VersionFetcher {

    public static Version getVersion(String version) {
        Gson gson = new Gson();
        JsonObject versionManifestJson = getList();
        JsonArray versionsJsonArray = versionManifestJson.getAsJsonArray("versions");
        Version[] versionArray = gson.fromJson(versionsJsonArray, Version[].class);

        for (Version value : versionArray) {
            if (value.getId().equalsIgnoreCase(version)) {
                return value;
            }
        }
        return null;
    }

    public static Version getVersion(String version, String type) {
        Gson gson = new Gson();
        JsonObject versionManifestJson = getList();
        JsonArray versionsJsonArray = versionManifestJson.getAsJsonArray("versions");
        Version[] versionArray = gson.fromJson(versionsJsonArray, Version[].class);

        for (Version value : versionArray) {
            if (value.getType().equalsIgnoreCase(type)) {
                if (value.getId().equalsIgnoreCase(version)) {
                    return value;
                }
            }
        }
        return null;
    }

    /**
     *
     * @param branch, release or snapshot
     * @return
     * @throws IOException
     */
    public static String getLatestVersion(String branch) {
        JsonObject versionManifestJson = getList();
        JsonObject latestJsonObject = versionManifestJson.get("latest").getAsJsonObject();

        return latestJsonObject.get(branch).getAsString();
    }

    @SuppressWarnings("Deprecated")
    public static JsonObject getList() {
        try {
            URL versionManifestUrl = new URL("https://launchermeta.mojang.com/mc/game/version_manifest.json");
            FileUtils.copyURLToFile(versionManifestUrl, new File(JAML.path + "\\data\\version.json"));

            File versionManifestFile = new File(JAML.path + "\\data\\version.json");

            return new Gson().fromJson(FileUtils.readFileToString(versionManifestFile, StandardCharsets.UTF_8), JsonObject.class);
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }
}