package com.nttdata.calender.states;

import java.util.ArrayList;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.bmc.arsys.api.ARException;
import com.bmc.arsys.api.Value;
import com.nttdata.calender.api.Query;
import com.nttdata.calender.api.RemedyJavaAPI;

/**
 * The StateChange class is a Spring Component responsible for creating state
 * change entries on Remedy. It handles the logic of creating a new
 * entry with the required field values.
 */
@Service
public class StateChange {
    static final String formName = "ASF:CHG_CAL_Interactions";
    private RemedyJavaAPI remedyJavaAPI;
    ArrayList<String> listOfFieldValues;

    /**
     * Initializes the StateChange class with a RemedyJavaAPI instance.
     * 
     * @param remedyJavaAPI RemedyJavaAPI instance
     */
    @Autowired
    public StateChange(RemedyJavaAPI remedyJavaAPI) {
        this.remedyJavaAPI = remedyJavaAPI;
        listOfFieldValues = new ArrayList<>();
    }

    /**
     * Creates a new state change entry in the RemedyJavaAPI with the given
     * request data.
     * 
     * @param request a StateChangeRequest object containing the required
     *                information
     *                for creating a new state change entry
     * @return String representing the created entry ID
     * @throws ARException when there's an error creating the entry
     */
    public String createStateChange(StateChangeRequest request) throws ARException {
        listOfFieldValues.clear();

        String ACTION = "STATUSCHANGE";

        if (request.getCurrentState() == 9 && request.getNextState() == 1)
            ACTION = "RESTART";

        var query = new Query.QueryBuilder(formName)
                .addFieldValue("Action", 666000001, new Value(ACTION))
                .addFieldValue("ChangeNr", 666000002, new Value(request.getChangeNr()))
                .addFieldValue("CurrentState", 666000003, new Value(request.getCurrentState()))
                .addFieldValue("NextState", 666000004, new Value(request.getNextState()))
                .build();

        // Print out the field IDs and values
        for (var entry : query.getFieldValues()) {
            listOfFieldValues.add(entry.getFieldId() + ": " + entry.getValue());
        }

        return remedyJavaAPI.createEntry(query);
    }

    public List<String> getListOfFieldValues() {
        return new ArrayList<>(listOfFieldValues); // Return a copy to ensure immutability
    }

}