using UnityEngine;

public class MMCameraController : MonoBehaviour
{
    [Header("Camera Settings")]
    public float moveSpeed = 10f;
    public float zoomSpeed = 5f;
    public float minZoom = 2f;
    public float maxZoom = 80f;

    private Camera cam;
    private Vector3 lastMousePosition;

    void Start()
    {
        cam = GetComponent<Camera>();
        if (cam == null)
            cam = Camera.main;
    }

    void Update()
    {
        HandleMovement();
        HandleZoom();
        HandleMouseDrag();

        // Help find ForestRiver tiles
        if (Input.GetKeyDown(KeyCode.F))
        {
            Debug.Log("💡 TIP: Look for blue-green colored tiles - those are ForestRiver tiles where rivers flow through forests!");
        }
    }

    private void HandleMovement()
    {
        float horizontal = Input.GetAxis("Horizontal");
        float vertical = Input.GetAxis("Vertical");

        Vector3 movement = new Vector3(horizontal, vertical, 0) * moveSpeed * Time.deltaTime;
        transform.Translate(movement);
    }

    private void HandleZoom()
    {
        float scroll = Input.GetAxis("Mouse ScrollWheel");
        if (scroll != 0)
        {
            cam.orthographicSize -= scroll * zoomSpeed;
            cam.orthographicSize = Mathf.Clamp(cam.orthographicSize, minZoom, maxZoom);
        }
    }

    private void HandleMouseDrag()
    {
        if (Input.GetMouseButtonDown(2)) // Middle mouse button
        {
            lastMousePosition = Input.mousePosition;
        }

        if (Input.GetMouseButton(2))
        {
            Vector3 delta = Input.mousePosition - lastMousePosition;
            Vector3 worldDelta = cam.ScreenToWorldPoint(delta) - cam.ScreenToWorldPoint(Vector3.zero);
            transform.position -= worldDelta;
            lastMousePosition = Input.mousePosition;
        }
    }
}