package com.bernard.ptitPlugin.grenzen;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.OptionalInt;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

import org.bukkit.Location;
import org.bukkit.configuration.ConfigurationSection;
import org.bukkit.configuration.file.YamlConfiguration;


public class Stockeur {
	
	public static final String FILENAME = "regions.yml";
	
	List<Region> regions = new ArrayList<>(); 
	
	public Stockeur() {
		if(!new File(FILENAME).exists())
			saveFile();
		readFile();
	}
	
	public List<Boolean> regionsIn(Location l){
		List<Boolean> poz = new ArrayList<Boolean>(regions.size());
		
		for(Region r : regions) {
			double d2 = 0;
			for(PointPondere p : r.points) 
				d2 += (l.getBlockX()-p.x)*(l.getBlockX()-p.x)+(l.getBlockZ()-p.z)*(l.getBlockZ()-p.z);
			poz.add(d2<=r.rayon);
		}
		
		return poz;
	}
	
	public String getDisplayName(int index) {
		return regions.get(index).displayName;
	}
	
	public void readFile() {
		
		ConfigurationSection cs = YamlConfiguration.loadConfiguration(new File(FILENAME));
		Map<String,Object> regs = cs.getConfigurationSection("regions").getValues(false);
		List<Region> regions = new ArrayList<Stockeur.Region>();
		for(String nom : regs.keySet()) {
			ConfigurationSection reg = cs.getConfigurationSection(nom);
			List<Object[]> pts = (List<Object[]>) reg.get("points");
			Set<PointPondere> ptz = pts.stream().map(p -> new PointPondere((int)p[0],(int)p[1],p.length>2?(int)p[2]:1)).collect(Collectors.toSet());
			String dName = reg.getString("displayName");
			long rayon = reg.getLong("rayon");
			regions.add(new Region(ptz, nom, dName,rayon));
		}
		this.regions = regions;
		
		
	}
	
	public void saveFile() {
		YamlConfiguration file = new YamlConfiguration();
		ConfigurationSection regionsCS = file.createSection("regions");
		for(Region r : regions) {
			
			ConfigurationSection region = regionsCS.createSection(r.nom);
			region.set("displayName", r.displayName);
			region.set("rayon", r.rayon);
			List<Object[]> lo = r.points.stream().map(pp -> new Object[] {pp.x,pp.z,pp.poids}).collect(Collectors.toList());
			region.set("points", lo);
		}
		try {
			file.save(new File(FILENAME));
		} catch (IOException e) {
			e.printStackTrace();
		}
		
	}
	
	
	public static class Region{
		
		Set<PointPondere> points;
		String nom;
		String displayName;
		long rayon;
		
		public Region(Set<PointPondere> points, String nom, String displayName, long rayon) {
			this.points = points;
			this.nom = nom;
			this.displayName = displayName;
			this.rayon = rayon;
		}

		
		
	}
	
	public static class PointPondere{
		
		int x,z;
		double poids;
		public PointPondere(int x, int z, double poids) {
			this.x = x;
			this.z = z;
			this.poids = poids;
		}
		
		
		
	}

	public void newRegion(Region r) {
		regions.add(r);
		
	}
	
	public boolean delRegion(String name) {
		OptionalInt index = IntStream.range(0, regions.size()).filter(i-> regions.get(i).nom.contentEquals(name)).findAny();
		if(index.isPresent()) {
			regions.remove(index.getAsInt());
			return true;
		}else
			return false;
		
	}

	public boolean dnameRegion(String nom2, String displayName2) {
		for(Region r : regions) {
			if(r.nom.contentEquals(nom2)) {
				r.displayName = displayName2;
				return true;
			}
		}
		return false;
	}

	public boolean addPtRegion(String nom3, int x, int z, double poids) {
		for(Region r : regions) {
			if(r.nom.contentEquals(nom3)) {
				r.points.add(new PointPondere(x, z, poids));
				return true;
			}
		}
		return false;
	}

	public int delNearestPtRegion(String nom4, int x, int z) {
		for(Region r : regions) {
			if(r.nom.contentEquals(nom4)) {
				
				int dcarre = 0;
				for (PointPondere pp : r.points) {
					
				}
				
				return true;
			}
		}
		return -1;
	}
	
}