package io.gitlab.jfronny.muscript.gson.impl.typed;

import io.gitlab.jfronny.gson.TypeAdapter;
import io.gitlab.jfronny.gson.stream.*;
import io.gitlab.jfronny.muscript.data.dynamic.DObject;
import io.gitlab.jfronny.muscript.data.dynamic.Dynamic;
import io.gitlab.jfronny.muscript.data.dynamic.additional.DFinal;
import io.gitlab.jfronny.muscript.gson.impl.DynamicSerializer;

import java.io.IOException;
import java.util.LinkedHashMap;
import java.util.Map;

public class DObjectSerializer extends TypeAdapter<DObject> {
    private final DynamicSerializer base;

    public DObjectSerializer(DynamicSerializer base) {
        this.base = base;
    }

    @Override
    public void write(JsonWriter w, DObject dynamic) throws IOException {
        w.beginObject();
        for (Map.Entry<String, ? extends Dynamic> entry : dynamic.getValue().entrySet()) {
            w.name(entry.getKey());
            base.write(w, entry.getValue());
        }
        w.endObject();
    }

    @Override
    public DObject read(JsonReader r) throws IOException {
        Map<String, Dynamic> elements = new LinkedHashMap<>();
        r.beginObject();
        while (r.peek() != JsonToken.END_OBJECT) {
            elements.put(r.nextName(), base.read(r));
        }
        r.endObject();
        return DFinal.of(elements);
    }
}