using UnityEngine;

/// <summary>
/// ThemeSelectionScreen scene manager
/// </summary>
public class ThemeSelectionScreen : MonoBehaviour
{
    /// <summary>
    /// Theme prefab
    /// </summary>
    public GameObject themePrefab;

    /// <summary>
    /// Reference to container holding all theme-buttons
    /// </summary>
    public Transform themesContainer;

    /// <summary>
    /// Start is called before the first frame update
    /// </summary>
    void Start()
    {
        // TODO: change to ScriptableObject
        ThemeList themeList = ThemeLoader.LoadJson();

        for (int i = 0; i < themeList.themes.Length; i++)
        {
            Theme theme = themeList.themes[i];

            // First, you need to create a new button game object
            GameObject instance = GameObject.Instantiate(themePrefab, themesContainer);

            // Dynamically load appearance
            ThemeItem item = instance.GetComponent<ThemeItem>();
            item.themeTitle = theme.name;
            item.themeDescription = theme.description;
            item.startGameCallback = () => OnButtonClick(theme.name);
        }
    }

    /// <summary>
    /// Load the game with a specified theme
    /// </summary>
    /// <param name="clickedTheme">Name of the clicked theme</param>
    public void OnButtonClick(string clickedTheme)
    {
        PlayerPrefs.SetString("themeName", clickedTheme);
        SystemController.GetInstance().SwapScene(PlayerPrefs.GetString("gamePath"));
    }
}