using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using KairoEngine.Core;
using KairoEngine.Core.GameActions;
using KairoEngine.Stockpiles;
using Sirenix.OdinInspector;
using KairoEngine.GameTools.Selectables;
using KairoEngine.SFX;

namespace KairoEngine.Grids
{
    [CreateAssetMenu(fileName = "PlaceObjectType", menuName = "KairoEngine/BuildingSystem/PlaceObjectType")]
    [HideMonoScript]
    public class PlacedObjectType : ScriptableObject
    {
        public static Dir GetNextDir(Dir dir) 
        {
            switch (dir)
            {
                default:
                case Dir.Down:  return Dir.Left;
                case Dir.Left:  return Dir.Up;
                case Dir.Up:    return Dir.Right;
                case Dir.Right: return Dir.Down;
            }
        }

        public enum Dir 
        {
            Down,
            Up,
            Left,
            Right
        }
        [BoxGroup("Properties", showLabel: false)] public string title;
        [BoxGroup("Properties")] public string category;
        [BoxGroup("Properties")] public Transform prefab;
        [BoxGroup("Properties")] public Transform visual;
        [BoxGroup("Properties")] public Sprite image;
        [BoxGroup("Properties")] public Sprite icon;
        [BoxGroup("Properties")] public SFXClip createdSound;
        [BoxGroup("Properties")] public SFXClip removedSound;
        [BoxGroup("Properties")] public bool isDestructable = true;
        [BoxGroup("Properties"), HorizontalGroup("Properties/size"), LabelText("Width/Height")] public int width;
        [BoxGroup("Properties"), HorizontalGroup("Properties/size", 0.3f), HideLabel] public int height;
        [BoxGroup("Properties"), TextArea(2, 8), HideLabel, PropertySpace(4, 4)] public string description;

        [PropertySpace(1, 1)] public List<KairoEngine.Stockpiles.Stockpile> cost = new List<KairoEngine.Stockpiles.Stockpile>();

        [PropertySpace(1, 1)] public List<PlaceableObjectConnector> connectors = new List<PlaceableObjectConnector>();
        [PropertySpace(1, 1)] public List<BuildingEffectArea> effectAreas = new List<BuildingEffectArea>();

        [FoldoutGroup("Rules"), PropertySpace(2, 2)]
        [InfoBox("Rules for positioning the building in the game world", InfoMessageType.Info)]
        public ConditionType rulesetCondition;

        [ListDrawerSettings(HideAddButton = false, HideRemoveButton = false, DraggableItems = false, Expanded = true, ShowPaging = false, ShowItemCount = true)]
        [PropertySpace(2, 2)]
        [FoldoutGroup("Rules")]
        public List<PlaceableObjectRuleGroup> ruleset = new List<PlaceableObjectRuleGroup>();

        [FoldoutGroup("Functionality")]
        [HideLabel, InlineProperty, OnInspectorInit("SetupContext"), PropertySpace(2, 4)]
        public GameActionContext context = new GameActionContext();

        [FoldoutGroup("Functionality")]
        [TabGroup("Functionality/Triggers", "On Action"), PropertySpace(1, 2)]
        [InfoBox("Actions that can be triggered by the player or game events", InfoMessageType.Info)]
        [LabelText("Actions")]
        public List<SelectableObjectAction> objectActions;

        [FoldoutGroup("Functionality")]
        [TabGroup("Functionality/Triggers", "On Create"), InlineProperty, HideLabel, PropertySpace(1, 2)]
        [InfoBox("Execute actions when the building is placed", InfoMessageType.Info)]
        public GameActionsController onCreateController;

        [FoldoutGroup("Functionality")]
        [TabGroup("Functionality/Triggers", "On Update"), InlineProperty, HideLabel, PropertySpace(1, 2)]
        [InfoBox("Executes every frame while the building is active", InfoMessageType.Info)]
        public GameActionsController onUpdateController;

        [FoldoutGroup("Functionality")]
        [TabGroup("Functionality/Triggers", "On Remove"), InlineProperty, HideLabel, PropertySpace(1, 2)]
        [InfoBox("Executes when the building is removed", InfoMessageType.Info)]
        public GameActionsController onRemoveController;

        public int GetRotationAngle(Dir dir) 
        { 
            switch (dir)
            {
                default:
                case Dir.Down:  return 0;
                case Dir.Left:  return 90;
                case Dir.Up:    return 180;
                case Dir.Right: return 270;
            }
        }

        public Vector2Int GetRotationOffset(Dir dir) 
        { 
            switch (dir)
            {
                default:
                case Dir.Down:  return new Vector2Int(0, 0);
                case Dir.Left:  return new Vector2Int(0, width);
                case Dir.Up:    return new Vector2Int(width, height);
                case Dir.Right: return new Vector2Int(height, 0);
            }
        }

        public Vector2Int GetRotationOffset(Dir dir, int width, int height) 
        { 
            switch (dir)
            {
                default:
                case Dir.Down:  return new Vector2Int(0, 0);
                case Dir.Left:  return new Vector2Int(0, width);
                case Dir.Up:    return new Vector2Int(width, height);
                case Dir.Right: return new Vector2Int(height, 0);
            }
        }

        public List<Vector2Int> GetGridPositionList(Vector2Int offset, Dir dir) 
        { 
            List<Vector2Int> gridPositionList = new List<Vector2Int>();
            switch (dir)
            {
                default:
                case Dir.Down:
                case Dir.Up:
                    for(int x = 0; x < width; x++)
                    {
                        for (int y = 0; y < height; y++)
                        {
                            gridPositionList.Add(offset + new Vector2Int(x, y));
                        }
                    }
                    break;
                case Dir.Left:
                case Dir.Right:
                    for (int x = 0; x < height; x++)
                    {
                        for (int y = 0; y < width; y++)
                        {
                            gridPositionList.Add(offset + new Vector2Int(x, y));
                        }
                    }
                    break;
            }
            return gridPositionList;
        }

        public bool CanPlaceObject(Grid<GridObject> grid, Vector3 worldPos, PlacedObjectType.Dir dir)
        {
            grid.GetGridPosition(worldPos, out int x, out int y);
            return CanPlaceObject(grid, x, y, dir);
        }

        public bool CanPlaceObject(Grid<GridObject> grid,  int x, int y, PlacedObjectType.Dir dir)
        {
            return EvaluateRuleset(grid, x, y, dir);
        }

        public bool EvaluateRuleset(Grid<GridObject> grid,  int x, int y, PlacedObjectType.Dir dir)
        {
            List<bool> results = new List<bool>();
            for (int i = 0; i < ruleset.Count; i++)
            {
                results.Add(ruleset[i].Evaluate(grid, this, x, y, dir));
            }
            if(rulesetCondition == ConditionType.AND)
            {
                foreach (var value in results)
                {
                    if(value == false) return false;
                }
                return true;
            }
            else
            {
                foreach (var value in results)
                {
                    if(value == true) return true;
                }
                return false;
            }
        }

        public List<PlaceableObjectRule> GetRulesetError(Grid<GridObject> grid,  int x, int y, PlacedObjectType.Dir dir)
        {
            List<PlaceableObjectRule> brokenRules = new List<PlaceableObjectRule>();
            for (int i = 0; i < ruleset.Count; i++)
            {
                for (int a = 0; a < ruleset[i].rules.Count; a++)
                {
                    bool result = ruleset[i].rules[a].Evaluate(grid, this, x, y, dir);
                    if(result == false) brokenRules.Add(ruleset[i].rules[a]);
                }
            }
            return brokenRules;
        }

        public Vector2Int GetConnectorPositionOffset(int index, PlacedObjectType.Dir dir)
        {
            PlaceableObjectConnector connector = connectors[index];
            switch (dir)
            {
                default:
                case Dir.Down:  return connector.position;
                case Dir.Left:  return new Vector2Int(connector.position.y, (connector.position.x * -1) + width - 1);
                case Dir.Up:    return new Vector2Int((connector.position.x * -1) + width - 1, (connector.position.y * -1) + height - 1);
                case Dir.Right: return new Vector2Int((connector.position.y * -1) + height - 1, connector.position.x);
            }
        }

        public Vector2Int GetConnectorTargetPositionOffset(int index, PlacedObjectType.Dir objectDir)
        {
            var targetDir = connectors[index].dir;
            return GetPositionOffsetFromDirection(objectDir, targetDir);
        }

        public Vector2Int GetPositionOffsetFromDirection(PlacedObjectType.Dir objectDir, PlacedObjectType.Dir targetDir)
        {
            switch (objectDir)
            {
                default:
                case Dir.Down:  
                    switch (targetDir)
                    {
                        default:
                        case Dir.Down:  return new Vector2Int(0, -1);
                        case Dir.Left:  return new Vector2Int(-1, 0);
                        case Dir.Up:    return new Vector2Int(0, 1);
                        case Dir.Right: return new Vector2Int(1, 0);
                    }
                case Dir.Left:  
                    switch (targetDir)
                    {
                        default:
                        case Dir.Down:  return new Vector2Int(-1, 0);
                        case Dir.Left:  return new Vector2Int(0, 1);
                        case Dir.Up:    return new Vector2Int(1, 0);
                        case Dir.Right: return new Vector2Int(0, -1);
                    }
                case Dir.Up:    
                    switch (targetDir)
                    {
                        default:
                        case Dir.Down:  return new Vector2Int(0, 1);
                        case Dir.Left:  return new Vector2Int(1, 0);
                        case Dir.Up:    return new Vector2Int(0, -1);
                        case Dir.Right: return new Vector2Int(-1, 0);
                    }
                case Dir.Right: 
                    switch (targetDir)
                    {
                        default:
                        case Dir.Down:  return new Vector2Int(1, 0);
                        case Dir.Left:  return new Vector2Int(0, -1);
                        case Dir.Up:    return new Vector2Int(-1, 0);
                        case Dir.Right: return new Vector2Int(0, 1);
                    }
            }
        }

        private void SetupContext()
        {
            if(context == null) return;
            onCreateController.context = context;
            onUpdateController.context = context;
            onRemoveController.context = context;
            for (int i = 0; i < objectActions.Count; i++)
            {
                if(objectActions[i] != null) objectActions[i].actions.context = context;
            }
            if(!context.HasVariable("Building GameObject"))
            {
                var variable = new GameActionContextGameObject();
                variable.name = "Building GameObject";
                variable.value = null;
                variable.canEdit = false;
                context.variables.Add(variable);
            } 
        }

        public Vector2Int OffsetValue(Vector2Int offset, Dir dir)
        {
            switch (dir)
            {
                default:
                case Dir.Down:  return new Vector2Int(offset.x, offset.y);
                case Dir.Left:  return new Vector2Int(offset.y, offset.x * -1);
                case Dir.Up:    return new Vector2Int(offset.x * -1, offset.y * -1);
                case Dir.Right: return new Vector2Int(offset.y * -1, offset.x);
            }
        }
    }
}