using UnityEngine;
using System.Collections.Generic;

public class GeographicFeatureManager : MonoBehaviour
{
    [Header("Feature Configuration")]
    public bool autoGenerateFeatures = true;
    public bool regenerateOnMapChange = true;

    [Header("Debug")]
    public bool debugMode = false;

    private List<GeographicFeature> geographicFeatures = new List<GeographicFeature>();
    private GeographicFeatureGenerator featureGenerator;
    private MapData currentMapData;

    public List<GeographicFeature> GeographicFeatures => geographicFeatures;

    private void Awake()
    {
        featureGenerator = new GeographicFeatureGenerator();
    }

    private void Start()
    {
        if (autoGenerateFeatures)
        {
            // Try to find MapMaker2 in the scene
            var mapMaker = FindFirstObjectByType<MapMaker2>();
            if (mapMaker != null)
            {
                StartCoroutine(WaitForMapDataAndGenerate(mapMaker));
            }
            else if (debugMode)
            {
                Debug.LogWarning("GeographicFeatureManager: MapMaker2 not found in scene");
            }
        }
    }

    private System.Collections.IEnumerator WaitForMapDataAndGenerate(MapMaker2 mapMaker)
    {
        // Wait a frame to ensure MapData is initialized
        yield return null;

        // Wait until MapData is available
        int attempts = 0;
        while (mapMaker.GetMapData() == null && attempts < 60) // Max 1 second wait
        {
            yield return new WaitForSeconds(0.1f);
            attempts++;
        }

        if (mapMaker.GetMapData() != null)
        {
            GenerateFeatures(mapMaker.GetMapData());
        }
        else if (debugMode)
        {
            Debug.LogError("GeographicFeatureManager: Failed to get MapData after waiting");
        }
    }

    public void GenerateFeatures(MapData mapData)
    {
        if (mapData == null)
        {
            if (debugMode)
                Debug.LogWarning("GeographicFeatureManager: Cannot generate features - MapData is null");
            return;
        }

        currentMapData = mapData;
        geographicFeatures.Clear();

        if (debugMode)
            Debug.Log("GeographicFeatureManager: Starting feature generation...");

        geographicFeatures = featureGenerator.GenerateFeatures(mapData);

        if (debugMode)
        {
            Debug.Log($"GeographicFeatureManager: Generated {geographicFeatures.Count} geographic features");
            foreach (var feature in geographicFeatures)
            {
                Debug.Log($"- {feature.name} ({feature.type}) at {feature.centerPosition} with {feature.tiles.Count} tiles");
            }
        }

        // Notify other systems that features have been generated
        NotifyFeaturesGenerated();
    }

    public List<GeographicFeature> GetFeaturesByType(GeographicFeatureType type)
    {
        var result = new List<GeographicFeature>();
        foreach (var feature in geographicFeatures)
        {
            if (feature.type == type)
                result.Add(feature);
        }
        return result;
    }

    public GeographicFeature GetFeatureAtPosition(Vector2Int position)
    {
        foreach (var feature in geographicFeatures)
        {
            if (feature.tiles.Contains(position))
                return feature;
        }
        return null;
    }

    public void SetFeatureDiscovered(GeographicFeature feature, bool discovered)
    {
        if (feature != null)
        {
            feature.isDiscovered = discovered;
        }
    }

    public void SetFeatureDiscoveredByName(string featureName, bool discovered)
    {
        var feature = geographicFeatures.Find(f => f.name == featureName);
        SetFeatureDiscovered(feature, discovered);
    }

    private void NotifyFeaturesGenerated()
    {
        // Find and notify the map legend system
        var mapLegend = FindFirstObjectByType<MapSceneLegendUI>();
        if (mapLegend != null)
        {
            mapLegend.OnFeaturesGenerated();
        }

        // Find and notify the location naming system
        var locationNaming = FindFirstObjectByType<MapLocationNameDisplay>();
        if (locationNaming != null)
        {
            locationNaming.OnFeaturesGenerated();
        }
    }

    [ContextMenu("Regenerate Features")]
    public void RegenerateFeatures()
    {
        if (currentMapData != null)
        {
            GenerateFeatures(currentMapData);
        }
        else
        {
            var mapMaker = FindFirstObjectByType<MapMaker2>();
            if (mapMaker != null && mapMaker.GetMapData() != null)
            {
                GenerateFeatures(mapMaker.GetMapData());
            }
            else
            {
                Debug.LogWarning("GeographicFeatureManager: Cannot regenerate - no MapData available");
            }
        }
    }

    public void ClearFeatures()
    {
        geographicFeatures.Clear();
        NotifyFeaturesGenerated();
    }
}