using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

/// <summary>
/// Main menu UI — assign all fields in Inspector.
/// </summary>
public class MainMenuUI : MonoBehaviour
{
    [Header("Text")]
    public Text titleText;
    public Text versionText;

    [Header("Buttons")]
    public Button cprButton;
    public Button fractureButton;
    public Button sprainButton;
    public Button bleedingButton;
    public Button transportButton;

    private void Start()
    {
        if (titleText != null) titleText.text = "运动伤害现场急救处理虚拟仿真实验";
        if (versionText != null) versionText.text = $"v{Application.version}";

        if (cprButton != null) cprButton.onClick.AddListener(() => OnSelect("CPR"));
        if (fractureButton != null) fractureButton.onClick.AddListener(() => OnSelect("FractureFixation"));
        if (sprainButton != null) sprainButton.onClick.AddListener(() => OnSelect("SprainBandage"));
        if (bleedingButton != null) bleedingButton.onClick.AddListener(() => OnSelect("BleedingBandage"));
        if (transportButton != null) transportButton.onClick.AddListener(() => OnSelect("CasualtyTransport"));
    }

    private void OnSelect(string experimentId)
    {
        PlayerPrefs.SetString("SelectedExperiment", experimentId);
        SceneManager.LoadScene("ModeSelection");
    }
}