using UnityEngine;
using UnityEngine.Tilemaps;

/// <summary>
/// Helper script to set up MazeRenderer with placeholder tiles
/// Attach this to the MazeRenderer and click "Generate Placeholder Tiles" in the inspector
/// </summary>
[RequireComponent(typeof(MazeRenderer))]
public class MazeRendererSetup : MonoBehaviour
{
    /// <summary>
    /// Call this from the inspector or in code to generate placeholder tiles
    /// </summary>
    [ContextMenu("Generate and Assign Placeholder Tiles")]
    public void GeneratePlaceholderTiles()
    {
        var renderer = GetComponent<MazeRenderer>();
        if (renderer == null)
        {
            Debug.LogError("MazeRenderer not found!");
            return;
        }

        // Create placeholder sprites
        var floorSprite = TileGenerator.CreateColoredSprite(new Color(0.8f, 0.8f, 0.8f), "Floor");
        var wallSprite = TileGenerator.CreateColoredSprite(new Color(0.3f, 0.3f, 0.3f), "Wall");
        var swampSprite = TileGenerator.CreateCheckerSprite(new Color(0.5f, 0.8f, 0.3f), new Color(0.4f, 0.6f, 0.2f), "Swamp");
        var stoneSprite = TileGenerator.CreateCheckerSprite(new Color(0.7f, 0.7f, 0.7f), new Color(0.6f, 0.6f, 0.6f), "Stone");
        var lavaSprite = TileGenerator.CreateColoredSprite(new Color(1.0f, 0.4f, 0.0f), "Lava");

        // Create tiles
        var floorTile = TileGenerator.CreateTile(floorSprite);
        var wallTile = TileGenerator.CreateTile(wallSprite);
        var swampTile = TileGenerator.CreateTile(swampSprite);
        var stoneTile = TileGenerator.CreateTile(stoneSprite);
        var lavaTile = TileGenerator.CreateTile(lavaSprite);

        // Assign to renderer via reflection (since the fields are private with SerializeField)
        var type = renderer.GetType();
        type.GetField("floorTile", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)?.SetValue(renderer, floorTile);
        type.GetField("wallTile", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)?.SetValue(renderer, wallTile);
        type.GetField("swampTile", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)?.SetValue(renderer, swampTile);
        type.GetField("stoneTile", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)?.SetValue(renderer, stoneTile);
        type.GetField("lavaTile", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)?.SetValue(renderer, lavaTile);

        Debug.Log("Placeholder tiles generated and assigned!");
    }

    /// <summary>
    /// Creates empty tilemaps if they don't exist
    /// </summary>
    [ContextMenu("Create Missing Tilemaps")]
    public void CreateMissingTilemaps()
    {
        var grid = GetComponent<Grid>();
        if (grid == null)
        {
            Debug.LogError("Grid not found on this GameObject!");
            return;
        }

        // Create tilemaps if they don't exist
        var combinedTilemap = transform.Find("CombinedTilemap")?.GetComponent<Tilemap>();
        if (combinedTilemap == null)
        {
            var go = new GameObject("CombinedTilemap");
            go.transform.parent = transform;
            combinedTilemap = go.AddComponent<Tilemap>();
            go.AddComponent<TilemapRenderer>();
        }

        var decorationTilemap = transform.Find("DecorationTilemap")?.GetComponent<Tilemap>();
        if (decorationTilemap == null)
        {
            var go = new GameObject("DecorationTilemap");
            go.transform.parent = transform;
            decorationTilemap = go.AddComponent<Tilemap>();
            go.AddComponent<TilemapRenderer>();
        }

        // Assign to renderer via reflection
        var renderer = GetComponent<MazeRenderer>();
        var type = renderer.GetType();
        type.GetField("combinedTilemap", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)?.SetValue(renderer, combinedTilemap);
        type.GetField("decorationTilemap", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)?.SetValue(renderer, decorationTilemap);

        Debug.Log("Tilemaps created and assigned!");
    }

    /// <summary>
    /// One-click setup: creates everything needed
    /// </summary>
    [ContextMenu("Quick Setup - Create Everything")]
    public void QuickSetup()
    {
        CreateMissingTilemaps();
        GeneratePlaceholderTiles();
    }
}