package com.verictas.pos.simulator.processor;

import com.verictas.pos.simulator.Object;
import com.verictas.pos.simulator.Simulator;
import com.verictas.pos.simulator.SimulatorConfig;
import com.verictas.pos.simulator.dataWriter.AOPDataWriter;
import com.verictas.pos.simulator.dataWriter.PosDataWriter;
import com.verictas.pos.simulator.dataWriter.WritingException;

import java.util.HashMap;
import java.util.TreeMap;

public class Processor {
    private PosDataWriter writer;
    private AOPDataWriter aopWriter;
    public HashMap<String, Object> initialObjectValues = new HashMap<>();
    public HashMap<String, SimpleObjectProcessor> objects = new HashMap<>();
    public HashMap<String, TreeMap<Integer, Double>> arguments = new HashMap<>();

    public Processor(Object[] objects) throws ProcessingException, WritingException {
        /**
         * Initialize DataWriter
         */
        this.writer = new PosDataWriter();
        this.aopWriter = new AOPDataWriter();

        /**
         * Store the initial values of all the objects in memory (and to a file) for later use
         */
        this.initialObjectValues = objectArrayToHashMap(objects);

        // Write initial values to file
        this.write(initialObjectValues);

        /**
         * Create the object processing array
         */
        for (Object object : initialObjectValues.values()) {
            this.objects.put(object.name, new SimpleObjectProcessor());
        }
    }

    public void process(Object[] objectArray) throws ProcessingException, WritingException {
        HashMap<String, Object> objects = objectArrayToHashMap(objectArray);

        /**
         * Only do the processing for the asked planet(s)
         */
        for(String objectName : SimulatorConfig.objectNames) {
            SimpleObjectProcessor object = this.objects.get(objectName);
            object.setObjectData(objects.get(objectName));

            // Check if we need to calculate the AOP
            if (Simulator.round % SimulatorConfig.moduloArgument == 0) {
                if (arguments.get(objectName) == null) {
                    // If not defined
                    TreeMap<Integer, Double> agmnts = new TreeMap<>();
                    arguments.put(objectName, agmnts);
                }
                arguments.get(objectName).put(Simulator.round, object.calculateAOP());
            }

            this.objects.put(objectName, object);
        }

        this.write(objects);
    }

    private void write(HashMap<String, Object> objects) throws ProcessingException, WritingException {
        if (SimulatorConfig.skipUnnecessary) {
            for (String name : SimulatorConfig.objectNames) {
                this.writer.write(objects.get(name));
            }
        } else {
            for (Object object : objects.values()) {
                this.writer.write(object);
            }
        }
    }

    private HashMap<String, Object> objectArrayToHashMap(Object[] objects) {
        // Create the return map
        HashMap<String, Object> objectMap = new HashMap<>();

        for(int i = 0; i < objects.length; i++) {
            objectMap.put(objects[i].name, objects[i]);
        }

        return objectMap;
    }

    public void close() throws ProcessingException {
        try {
            this.writer.save();
            System.out.println("");

            System.out.println("TOTAL RESULTS: " + arguments);
            System.out.println("");

            for(String objectName : SimulatorConfig.objectNames) {
                TreeMap<Integer, Double> arguments = this.arguments.get(objectName);

                this.aopWriter.write(objectName, arguments);

                double score = 0;

                Double[] empty = new Double[arguments.size()];
                Double[] agmnts = arguments.values().toArray(empty);

                // Calculate score
                for(int i = 1; i < agmnts.length - 1; i++) {
                    score = score + Math.abs(agmnts[i-1] - agmnts[i]);
                }

                System.out.println("SCORE (" + objectName + "): " + score);

                // CALCULATE AVERAGE
                double sum = 0;
                for (int i = 0; i < agmnts.length; i++){
                    sum = sum + agmnts[i];
                }
                // calculate average
                double average = sum / agmnts.length;

                System.out.println("AVERAGE (" + objectName + ") (degrees): " + Math.toDegrees(average));
                System.out.println("");
            }

            this.aopWriter.save();
        } catch(WritingException e) {
            throw new ProcessingException("An error occurred during creation of the file writer: " + e.toString());
        }
    }
}