using UnityEngine;
using System.Collections.Generic;

public class SimpleFarmhouse : MonoBehaviour
{
    [SerializeField] private int maxResidents = 2;
    [SerializeField] private int currentFood = 0;
    [SerializeField] private int maxFood = 20;
    [SerializeField] private float foodProductionRate = 2f; // food per second when farmers are working

    private List<Villager> residents = new List<Villager>();
    private float lastProductionTime;

    public bool HasSpace => residents.Count < maxResidents;
    public int ResidentCount => residents.Count;
    public int AvailableFarmers => residents.Count;

    void Start()
    {
        lastProductionTime = Time.time;
        Debug.Log("Simple Farmhouse created");
    }

    void Update()
    {
        ProduceFood();
    }

    void ProduceFood()
    {
        if (residents.Count > 0 && currentFood < maxFood)
        {
            float timeSinceLastProduction = Time.time - lastProductionTime;

            if (timeSinceLastProduction >= 1f) // Produce every second
            {
                int foodToAdd = Mathf.FloorToInt(foodProductionRate * residents.Count);
                currentFood = Mathf.Min(currentFood + foodToAdd, maxFood);

                if (currentFood >= 10) // Transfer food to global storage when we have enough
                {
                    GameManager.Instance.resourceManager.AddResource(ResourceType.Food, currentFood);
                    Debug.Log($"Farmhouse produced {currentFood} food");
                    currentFood = 0;
                }

                lastProductionTime = Time.time;
            }
        }
    }

    public bool AddResident(Villager villager)
    {
        if (HasSpace)
        {
            residents.Add(villager);
            Debug.Log($"Farmer moved into farmhouse. Residents: {residents.Count}/{maxResidents}");
            return true;
        }
        return false;
    }

    public void RemoveResident(Villager villager)
    {
        if (residents.Contains(villager))
        {
            residents.Remove(villager);
            Debug.Log($"Farmer left farmhouse. Residents: {residents.Count}/{maxResidents}");
        }
    }

    public string GetBuildingInfo()
    {
        return $"Farmhouse\nResidents: {residents.Count}/{maxResidents}\nFood stored: {currentFood}/{maxFood}";
    }

    public void OnBuildingPlaced()
    {
        // Try to assign nearby homeless farmers
        AssignNearbyFarmers();
    }

    void AssignNearbyFarmers()
    {
        if (!HasSpace) return;

        // Find homeless villagers within range
        Collider[] nearbyObjects = Physics.OverlapSphere(transform.position, 10f);

        foreach (var obj in nearbyObjects)
        {
            if (!HasSpace) break;

            Villager villager = obj.GetComponent<Villager>();
            if (villager != null)
            {
                AddResident(villager);
            }
        }
    }

    void OnDrawGizmos()
    {
        // Show farmhouse range
        Gizmos.color = Color.green;
        Gizmos.DrawWireSphere(transform.position, 10f);

        // Show food production status
        if (residents.Count > 0)
        {
            Gizmos.color = Color.yellow;
            Gizmos.DrawWireCube(transform.position + Vector3.up * 2, Vector3.one * 0.5f);
        }
    }
}