using UnityEngine;
using UnityEngine.UIElements;


public class SceneSetup : MonoBehaviour
{
    [Header("Scene Setup")]
    public bool setupSceneOnStart = true;
    public Vector3 townHallPosition = Vector3.zero;
    public int numberOfTrees = 5;
    public int numberOfStones = 3;
    public int numberOfFarms = 2;
    public float resourceSpawnRadius = 15f;

    [Header("Materials (Optional)")]
    public Material villagerMaterial;
    public Material townHallMaterial;
    public Material treeMaterial;
    public Material stoneMaterial;
    public Material farmMaterial;

    void Start()
    {
        if (setupSceneOnStart)
        {
            SetupScene();
        }
    }

    [ContextMenu("Setup Scene")]
    public void SetupScene()
    {
        CreateGround();
        CreateTownHall();
        CreateResourceNodes();
        SetupCamera();
        CreateGameManager();
    }

    void CreateGround()
    {
        GameObject ground = GameObject.Find("Ground");
        if (ground == null)
        {
            // Create ground plane
            ground = GameObject.CreatePrimitive(PrimitiveType.Plane);
            ground.name = "Ground";
            ground.transform.position = Vector3.zero;
            ground.transform.localScale = new Vector3(5f, 1f, 5f); // 50x50 units

            // Set material if available
            Renderer groundRenderer = ground.GetComponent<Renderer>();
            if (groundRenderer != null)
            {
                groundRenderer.material.color = new Color(0.3f, 0.5f, 0.3f); // Green ground
            }

            Debug.Log("Created ground plane");
        }
    }

    void CreateTownHall()
    {
        GameObject townHallGO = GameObject.FindWithTag("TownHall");
        if (townHallGO == null)
        {
            // Create TownHall
            townHallGO = GameObject.CreatePrimitive(PrimitiveType.Cube);
            townHallGO.name = "TownHall";
            townHallGO.tag = "TownHall";
            townHallGO.transform.position = townHallPosition;
            townHallGO.transform.localScale = new Vector3(3f, 2f, 3f);

            // Add TownHall component
            TownHall townHall = townHallGO.AddComponent<TownHall>();

            // Apply material if available
            if (townHallMaterial != null)
            {
                townHallGO.GetComponent<Renderer>().material = townHallMaterial;
            }
            else
            {
                townHallGO.GetComponent<Renderer>().material.color = Color.blue;
            }

            // Create selection indicator
            GameObject indicator = GameObject.CreatePrimitive(PrimitiveType.Cylinder);
            indicator.transform.SetParent(townHallGO.transform);
            indicator.transform.localPosition = Vector3.down * 1.2f;
            indicator.transform.localScale = Vector3.one * 1.5f;
            indicator.GetComponent<Renderer>().material.color = Color.yellow;
            indicator.SetActive(false);
            townHall.selectionIndicator = indicator;
            Destroy(indicator.GetComponent<Collider>());

            Debug.Log("Created TownHall");
        }
    }

    void CreateResourceNodes()
    {
        // Create Trees
        for (int i = 0; i < numberOfTrees; i++)
        {
            Vector3 position = GetRandomPosition();
            CreateTree(position, i);
        }

        // Create Stones
        for (int i = 0; i < numberOfStones; i++)
        {
            Vector3 position = GetRandomPosition();
            CreateStone(position, i);
        }

        // Create Farms
        for (int i = 0; i < numberOfFarms; i++)
        {
            Vector3 position = GetRandomPosition();
            CreateFarm(position, i);
        }
    }

    void CreateTree(Vector3 position, int index)
    {
        GameObject tree = GameObject.CreatePrimitive(PrimitiveType.Cylinder);
        tree.name = $"Tree_{index + 1}";
        tree.tag = "Tree";
        tree.transform.position = position;
        tree.transform.localScale = new Vector3(1f, 2f, 1f);

        // Add ResourceNode component
        ResourceNode node = tree.AddComponent<ResourceNode>();
        node.nodeType = ResourceNodeType.Tree;
        node.resourceType = ResourceType.Wood;
        node.maxResources = 50;
        node.currentResources = 50;
        node.regenerationRate = 2f;

        // Apply material
        if (treeMaterial != null)
        {
            tree.GetComponent<Renderer>().material = treeMaterial;
        }
        else
        {
            tree.GetComponent<Renderer>().material.color = Color.green;
        }

        // Create selection indicator
        CreateSelectionIndicator(tree, node);

        Debug.Log($"Created Tree at {position}");
    }

    void CreateStone(Vector3 position, int index)
    {
        GameObject stone = GameObject.CreatePrimitive(PrimitiveType.Sphere);
        stone.name = $"Stone_{index + 1}";
        stone.tag = "Stone";
        stone.transform.position = position;
        stone.transform.localScale = Vector3.one * 1.5f;

        // Add ResourceNode component
        ResourceNode node = stone.AddComponent<ResourceNode>();
        node.nodeType = ResourceNodeType.Stone;
        node.resourceType = ResourceType.Stone;
        node.maxResources = 75;
        node.currentResources = 75;
        node.regenerationRate = 0.5f;

        // Apply material
        if (stoneMaterial != null)
        {
            stone.GetComponent<Renderer>().material = stoneMaterial;
        }
        else
        {
            stone.GetComponent<Renderer>().material.color = Color.gray;
        }

        // Create selection indicator
        CreateSelectionIndicator(stone, node);

        Debug.Log($"Created Stone at {position}");
    }

    void CreateFarm(Vector3 position, int index)
    {
        GameObject farm = GameObject.CreatePrimitive(PrimitiveType.Cube);
        farm.name = $"Farm_{index + 1}";
        farm.tag = "Farm";
        farm.transform.position = position;
        farm.transform.localScale = new Vector3(2f, 0.2f, 2f);

        // Add ResourceNode component
        ResourceNode node = farm.AddComponent<ResourceNode>();
        node.nodeType = ResourceNodeType.Farm;
        node.resourceType = ResourceType.Food;
        node.maxResources = 100;
        node.currentResources = 100;
        node.regenerationRate = 3f;

        // Apply material
        if (farmMaterial != null)
        {
            farm.GetComponent<Renderer>().material = farmMaterial;
        }
        else
        {
            farm.GetComponent<Renderer>().material.color = Color.yellow;
        }

        // Create selection indicator
        CreateSelectionIndicator(farm, node);

        Debug.Log($"Created Farm at {position}");
    }

    void CreateSelectionIndicator(GameObject parent, ResourceNode node)
    {
        GameObject indicator = GameObject.CreatePrimitive(PrimitiveType.Cylinder);
        indicator.transform.SetParent(parent.transform);
        indicator.transform.localPosition = Vector3.down * 0.6f;
        indicator.transform.localScale = Vector3.one * 1.2f;
        indicator.GetComponent<Renderer>().material.color = Color.cyan;
        indicator.SetActive(false);
        node.selectionIndicator = indicator;
        Destroy(indicator.GetComponent<Collider>());
    }

    Vector3 GetRandomPosition()
    {
        Vector2 randomCircle = Random.insideUnitCircle * resourceSpawnRadius;
        Vector3 position = townHallPosition + new Vector3(randomCircle.x, 0, randomCircle.y);

        // Make sure we don't spawn too close to town hall
        if (Vector3.Distance(position, townHallPosition) < 3f)
        {
            return GetRandomPosition(); // Try again
        }

        return position;
    }

    void SetupCamera()
    {
        Camera mainCamera = Camera.main;
        if (mainCamera == null)
        {
            mainCamera = FindObjectOfType<Camera>();
        }

        if (mainCamera != null)
        {
            // Position camera above the scene
            mainCamera.transform.position = new Vector3(0, 15, -10);
            mainCamera.transform.rotation = Quaternion.Euler(45, 0, 0);

            // Add camera controller if it doesn't exist
            CameraController cameraController = mainCamera.GetComponent<CameraController>();
            if (cameraController == null)
            {
                cameraController = mainCamera.gameObject.AddComponent<CameraController>();
            }

            // Set up camera for orthographic view (better for RTS games)
            mainCamera.orthographic = true;
            mainCamera.orthographicSize = 15f;

            Debug.Log("Camera setup complete");
        }
    }

    void CreateGameManager()
    {
        // Check if GameManager already exists
        GameManager existingGameManager = FindObjectOfType<GameManager>();
        if (existingGameManager == null)
        {
            GameObject gameManagerGO = new GameObject("GameManager");

            // Add GameManager component
            GameManager gameManager = gameManagerGO.AddComponent<GameManager>();

            Debug.Log("Created GameManager");
        }

        // Create separate UI GameObject if it doesn't exist
        GameObject uiGameObject = GameObject.Find("UI");
        if (uiGameObject == null)
        {
            uiGameObject = new GameObject("UI");
            uiGameObject.transform.position = Vector3.zero;

            // Add UIDocument component
            UIDocument uiDoc = uiGameObject.AddComponent<UIDocument>();

            // Try to load the UXML file from Resources folder
            VisualTreeAsset gameUIAsset = Resources.Load<VisualTreeAsset>("GameUI");
            if (gameUIAsset != null)
            {
                uiDoc.visualTreeAsset = gameUIAsset;
                Debug.Log($"Assigned UXML asset '{gameUIAsset.name}' to UIDocument");
            }
            else
            {
                Debug.LogWarning("Could not find GameUI.uxml in Resources! Please assign it manually in the inspector.");
            }

            // Try to load panel settings
            PanelSettings panelSettings = Resources.Load<PanelSettings>("PanelSettings");
            if (panelSettings != null)
            {
                uiDoc.panelSettings = panelSettings;
                Debug.Log("Assigned PanelSettings to UIDocument");
            }

            // Add GameUI component
            uiGameObject.AddComponent<GameUI>();

            Debug.Log("Created UI GameObject with GameUI component");
        }

        // Create Building System GameObject
        GameObject buildingSystemGO = GameObject.Find("BuildingSystem");
        if (buildingSystemGO == null)
        {
            buildingSystemGO = new GameObject("BuildingSystem");
            buildingSystemGO.AddComponent<BuildingSystem>();
            buildingSystemGO.AddComponent<HousingManager>();

            Debug.Log("Created BuildingSystem and HousingManager");
        }
    }


    [ContextMenu("Clear Scene")]
    public void ClearScene()
    {
        // Clear existing objects (useful for testing)
        GameObject[] trees = GameObject.FindGameObjectsWithTag("Tree");
        GameObject[] stones = GameObject.FindGameObjectsWithTag("Stone");
        GameObject[] farms = GameObject.FindGameObjectsWithTag("Farm");
        GameObject[] villagers = GameObject.FindGameObjectsWithTag("Villager");
        GameObject townHall = GameObject.FindWithTag("TownHall");

        foreach (var obj in trees) DestroyImmediate(obj);
        foreach (var obj in stones) DestroyImmediate(obj);
        foreach (var obj in farms) DestroyImmediate(obj);
        foreach (var obj in villagers) DestroyImmediate(obj);
        if (townHall != null) DestroyImmediate(townHall);

        Debug.Log("Scene cleared");
    }
}