package io.gitlab.jfronny.inceptum.launcher.gson;

import gsoncompile.extensions.io.gitlab.jfronny.inceptum.launcher.model.mojang.Rules.GC_Rules;
import io.gitlab.jfronny.gson.JsonParseException;
import io.gitlab.jfronny.gson.compile.util.GList;
import io.gitlab.jfronny.gson.stream.*;
import io.gitlab.jfronny.inceptum.launcher.model.mojang.*;

import java.io.IOException;
import java.util.List;
import java.util.Set;

public class MinecraftArgumentAdapter {
    public static void write(MinecraftArgument rules, JsonWriter writer) throws IOException {
        throw new UnsupportedOperationException();
    }

    public static MinecraftArgument read(JsonReader reader) throws IOException {
        if (reader.peek() == JsonToken.STRING) return new MinecraftArgument(Set.of(reader.nextString()));
        Rules rules = null;
        List<String> value = null;
        reader.beginObject();
        while (reader.hasNext()) {
            switch (reader.nextName()) {
                case "rules" -> rules = GC_Rules.read(reader);
                case "value" -> value = GList.read(reader, JsonReader::nextString);
            }
        }
        reader.endObject();
        if (rules == null || value == null) throw new JsonParseException("Not a valid minecraft argument");
        if (!rules.allow()) return new MinecraftArgument(Set.of());
        return new MinecraftArgument(Set.copyOf(value));
    }
}