using UnityEngine;
using System.Collections.Generic;
using System;
using DeathBook.Util;

namespace DeathBook.Model
{
	public class Person : Observable, Updatable
	{
        public Action OnSelected;

		public int id;
		public int Id { get { return id; } }

		private string firstName;
		private string lastName;
		public string Name { get { return firstName + " " + lastName; } }
		public string FirstName { get { return firstName; } }

		private Vector3 initialPosition;
		public Vector3 InitialPosition { get { return initialPosition; } }

		private List<Friendship> friendsList = new List<Friendship>();
		public List<Friendship> FriendList { get { return friendsList; } }
		private List<Friendship> deadFriendsList = new List<Friendship>();
		public List<Friendship> DeadFriendList { get { return deadFriendsList; } }

		private int numAliveFriends = 0;
		private int numDeadFriends = 0;
		private int friendCount = 0;
        public int FriendCount { get { return friendCount; } }

		private int timeBetweenPosts; // f = 1/T;
		public int TimeBetweenPosts { get { return timeBetweenPosts; } }

		private float connectionTime;
		public float ConnectionTime { get { return connectionTime; } }

		private float disconnectionTime;
		public float DisconnectionTime { get { return disconnectionTime; } }

		private float awarenessLevel = 0; //on a scale from 0 to 1
		public float AwarenessLevel { get { return awarenessLevel; } }

		private bool alive = true;
		public bool Alive { get { return alive; } }

		private bool online = true;
		public bool Online { get { return online; } }
		
		private Sprite picture;
		public Sprite Picture { get { return picture; } }


		public Person(int id, Vector3 pos)
		{
			this.id = id;
			initialPosition = pos;

            // TODO Use names from db
			firstName = "Mark";
			lastName = "Zuckerberg";

			// For testing purposes
			picture = UnityEngine.Random.Range(0, 2) == 0 ? PictureGenerator.GetFemalePicture() : PictureGenerator.GetMalePicture();
		}

		public void AddFriendship(Friendship f)
		{
			friendsList.Add(f);
			numAliveFriends++;
			friendCount++;
		}

		public void NotifyFriendWasKilled(Friendship f)
		{
			//Debug.Log("I am " + id + " and my friend " + f.Friend.Id + " was killed");
			numAliveFriends--;
			numDeadFriends++;
			deadFriendsList.Add(f);
		}

		public void Kill()
		{
			//Debug.Log("Person " + id + " died!");
			alive = false;
			foreach (Friendship f in friendsList)
				f.Friend.NotifyFriendWasKilled(f.Other);
			NotifyObservers();
		}

		public void NoticeDeath(Friendship f)
		{
			//TODO apply more rules here
			awarenessLevel = Mathf.Min(AwarenessLevel + 0.2f, 1f);
			//Debug.Log("I am " + id + " and I know my friend " + f.Friend.Id + " was killed.. " + AwarenessLevel);
			//TODO remove from dead friends list to accelerate
			NotifyObservers();
		}

		public void Update(float deltaTime)
		{
			//TODO Update if connected
			int time = LevelManager.Instance.GameLevel.GameTime;



			//The following actions are only performed if user is online
			if (!Online)
				return;

			foreach (Friendship f in deadFriendsList)
				f.Update(deltaTime);
		}

        public void SelectNode()
        {
            if (OnSelected != null)
            {
                OnSelected();
            }
        }
	}
}