/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package m.ecat;

import csip.Client;
import csip.Config;
import static csip.ModelDataService.ERROR;
import static csip.ModelDataService.KEY_METAINFO;
import static csip.ModelDataService.KEY_NAME;
import static csip.ModelDataService.KEY_PARAMETER;
import static csip.ModelDataService.KEY_RESULT;
import static csip.ModelDataService.KEY_STATUS;
import static csip.ModelDataService.KEY_VALUE;
import csip.ServiceException;
import csip.SessionLogger;
import static m.Constants.KEY_CONVERT;
import static m.Constants.KEY_FUELS;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;

/**
 *
 * @author Brad
 */
public class Fuel {
    private String fuelType;
    private double conversion;
    private double cost;

    public String getFuelType() {
        return fuelType;
    }

    public void setFuelType(String fuelType) {
        this.fuelType = fuelType;
    }

    public double getConversion() {
        return conversion;
    }

    public double getCost() {
        return cost;
    }

    public void setCost(double cost) {
        this.cost = cost;
    }
    
    public String getFuelConversion(SessionLogger LOG) throws JSONException, Exception{
        JSONObject req;
        JSONObject meta;
        String error;
        JSONArray paramObj;
        JSONObject fuelobject;
        JSONArray resultArr;
        JSONArray fuelArr;
        JSONObject lmod;
        JSONObject fuelObj;
        String warning = "";
        
        req = new JSONObject();
        meta = new JSONObject();
        paramObj = new JSONArray();
        fuelobject = new JSONObject();
        fuelobject.put(KEY_NAME, "keywords");
        fuelobject.put(KEY_VALUE, fuelType);
        req.put(KEY_METAINFO, meta);
        req.put(KEY_PARAMETER, paramObj);
        paramObj.put(fuelobject);

        LOG.info("FUEL Request: " + req.toString());
        JSONObject soilsResponse = new Client().doPOST(Config.getString("fuels", "http://csip.engr.colostate.edu:8083/csip-lmod/d/fuel/1.0"), req);
        LOG.info("FUEL Response: " + soilsResponse.toString());
        JSONObject responseMeta = soilsResponse.getJSONObject(KEY_METAINFO);
        if (!responseMeta.getString(KEY_STATUS).equalsIgnoreCase("Failed")) {
            resultArr = soilsResponse.getJSONArray(KEY_RESULT);
            lmod = resultArr.getJSONObject(0);  // assuming only one lmod object wull come back because of Lucas's design
            fuelArr = lmod.getJSONObject(KEY_VALUE).getJSONArray(KEY_FUELS);
            if(fuelArr.length() > 1){
                warning += "More than one fuel matched your fuel type.";
            }
            if(fuelArr.length() == 0){
                throw new ServiceException("There are no fuels in LMOD that match "+fuelType);
            }
            fuelObj = fuelArr.getJSONObject(0);
            conversion = fuelObj.getDouble(KEY_CONVERT);
        }else{
            error = responseMeta.getString(ERROR);
            throw new ServiceException("Failed to get fuel type "+ fuelType +". WIth error "+ error);
        } 
        
        return warning;
    }
}