package com.bmwfs.efinance.salesopportunity.configurationcache.control;

import com.bmwfs.efinance.salesopportunity.context.RequestContextParam;

import java.io.StringReader;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import javax.json.Json;
import javax.json.JsonObject;
import javax.json.JsonReader;

class EnumStrategy implements Extractable {

    @Override
    public Map<ConfigCacheKey, Map<String, String>> extract(String json, String fileName) {
        Map<ConfigCacheKey, Map<String, String>> tempCache = new HashMap<>();

        try (JsonReader jsonReader = Json.createReader(new StringReader(json))) {
            JsonObject jsonObject = jsonReader.readObject();
            Set<String> languages = jsonObject.keySet();

            for (String language : languages) {
                JsonObject strippedJsonObject = jsonObject.getJsonObject(language);

                Set<String> types = strippedJsonObject.keySet();
                for (String type : types) {
                    strippedJsonObject = strippedJsonObject.getJsonObject(type);
                    ConfigCacheKey key = ConfigCacheKey.getBuilder() //
                            .cmbContext(RequestContextParam.getCmbContext()) //
                            .language(language) //
                            .fileName(fileName) //
                            .type(type) //
                            .build();
                    Map<String, String> value = populateValueMap(strippedJsonObject);
                    tempCache.put(key, value);
                }
            }
        }
        return tempCache;
    }
}