using System;
using Sirenix.OdinInspector;
using UnityEngine;

// ReSharper disable once CheckNamespace
namespace BlueWaterProject
{
    public class UnitController : MonoBehaviour
    {
        #region Property and variable

        [PropertyOrder(-10)]
        public Unit unit;

        private bool isClickedTypeAllButton;

        #endregion

        #region Unity built-in function

        private void OnDrawGizmosSelected()
        {
            if (unit == null || unit.SailorCount <= 0) return;
            
            var gridSize = 0;

            switch (unit.SailorCount)
            {
                case 0:
                    gridSize = 1;
                    break;
                case <= 3:
                    gridSize = 2;
                    break;
                case <= 8:
                    gridSize = 3;
                    break;
                case <= 15:
                    gridSize = 4;
                    break;
                default:
                    print("유닛의 병사 숫자 설정 에러");
                    break;
            }
            
            for (var i = 0; i < gridSize; i++)
            {
                for (var j = 0; j < gridSize; j++)
                {
                    var currentPos = i * gridSize + j;

                    if (currentPos > unit.SailorCount) break;
                    
                    var xOffset = (i - (gridSize - 1) / 2.0f) * UnitManager.Inst.UnitSpacing;
                    var zOffset = (j - (gridSize - 1) / 2.0f) * UnitManager.Inst.UnitSpacing;
                    var spawnPosition = transform.position + new Vector3(xOffset, 0, zOffset);

                    var ray = new Ray(spawnPosition, Vector3.down);
                    Gizmos.color = Physics.Raycast(ray, UnitManager.Inst.MaxGroundDistance, UnitManager.Inst.GroundLayer) ? Color.blue : Color.red;
                    Gizmos.DrawRay(ray.origin, ray.direction * UnitManager.Inst.MaxGroundDistance);
                }
            }
        }

        // private void Start()
        // {
        //     SetIslandInfoTest();
        // }

        #endregion

        #region Custom function
        
        [PropertyOrder(-9)]
        [HorizontalGroup("Split", 0.5f)]
        [GUIColor("GetCreateUnitButtonColor")]
        [EnableIf("@DataManager.Inst.GetEnemyUnitSoKey(unit.Idx) != null || DataManager.Inst.GetUnitSoKey(unit.Idx) != null")]
        [Button("유닛 생성")]
        public void CreateUnit()
        {
            UnitManager.Inst.CreateUnitInEditor(this);
        }

        [PropertyOrder(-8)]
        [HorizontalGroup("Split", 0.5f)]
        [EnableIf("CanAssignUnit")]
        [Button("유닛 배치")]
        private void SetAssignUnitInEditor()
        {
            if (UnitManager.Inst.CanAssignUnit(this, transform.position))
            {
                UnitManager.Inst.AssignUnit(this, transform.position);
            }
        }
        
        private bool CanAssignUnit()
        {
            return UnitManager.Inst.CanAssignUnit(this, transform.position);
        }
        
        [PropertyOrder(2)]
        [Button("테스트 배치")]
        public void SetAssignUnit(Vector3 assignPos)
        {
            if (UnitManager.Inst.CanAssignUnit(this, assignPos))
            {
                UnitManager.Inst.AssignUnit(this, assignPos);
            }
            else
            {
                print("병력이 땅과 맞닿아 있지 않아 배치할 수 없는 위치입니다.");
            }
        }

        [PropertyOrder(-7)]
        [GUIColor(1, 0, 0)]
        [Button("유닛 초기화")]
        private void ResetUnit()
        {
            var tempUnitIdx = unit.Idx;
            UnitManager.Inst.DestroyDeployedUnits(this);
            
            unit = new Unit
            {
                Idx = tempUnitIdx
            };
            isClickedTypeAllButton = false;
        }

        public void MoveCommand(Vector3 targetPos)
        {
            foreach (var soldier in unit.UnitList)
            {
                soldier.MoveTarget(targetPos);
            }
        }
        
        private Color GetCreateUnitButtonColor() => unit.UnitList.Count > 0 ? Color.white : Color.green;
        private Color GetTypeAllButtonColor() => isClickedTypeAllButton ? Color.white : Color.green;
        private void OnTypeChanged() => isClickedTypeAllButton = false;

        #endregion
    }
}