using UnityEngine;
using OctoCore.Components;
using Unheimlich.Core;
using Unheimlich.Features.Player.Data;
using Unheimlich.Features.Dialogue;
using Unheimlich.Core.Interaction;
using Unheimlich.Features.DetectiveBoard;
using Unheimlich.Features.Diapason;
using Unheimlich.Features.OctoArms;
using Unheimlich.World.CameraSystem;
using InputManager = Unheimlich.Core.Input.InputManager;

namespace Unheimlich.Features.Player
{
    /// <summary>
    /// Central hub for all player systems.
    /// Exposes components and settings with zero Inspector refs needed for other scripts.
    /// </summary>
    [RequireComponent(typeof(OctoPlayer))]
    [RequireComponent(typeof(CharacterController))]
    public class PlayerController : Singleton<PlayerController>
    {
        // Auto-found components (exposed publicly, found once in Awake)
        public OctoPlayer Movement { get; private set; }
        public CharacterController CharController { get; private set; }
        public Camera PlayerCamera { get; private set; }
        public Transform CameraTransform { get; private set; }
        public Transform CameraPivot { get; private set; }
        public CameraEffects CameraEffects { get; private set; }
        public CameraPanController CameraPanController { get; private set; }
        public DiapasonListeningHandlerV2 DiapasonHandler { get; private set; }
        public DiapasonEquipmentManager DiapasonEquipment { get; private set; }
        public PlayerInspectionHandler InspectionHandler { get; private set; }
        public DetectiveBoardController DetectiveBoardController { get; private set; }
        public OctoIkArmsImproved ArmsSystem { get; private set; }
        
        public InputManager Inputs => InputManager.Instance;

        // Cached sprint InputAction — resolved once in OnAwake to avoid per-frame foreach.
        private UnityEngine.InputSystem.InputAction _sprintAction;

        /// <summary>
        /// True when the character is physically moving (based on CharacterController velocity,
        /// not raw input — correctly synced with OctoPlayer's inertia).
        /// </summary>
        public bool IsMoving => CharController != null && CharController.velocity.magnitude > 0.1f;

        /// <summary>
        /// True while the sprint input is held and the player is moving.
        /// </summary>
        public bool IsRunning => _sprintAction != null && _sprintAction.IsPressed() && IsMoving;

        protected override void OnAwake()
        {
            // Auto-find all components once
            Movement = GetComponent<OctoPlayer>();
            CharController = GetComponent<CharacterController>();
            CameraEffects = GetComponent<CameraEffects>();
            CameraPanController = GetComponent<CameraPanController>();
            DiapasonHandler = GetComponent<DiapasonListeningHandlerV2>();
            DiapasonEquipment = GetComponent<DiapasonEquipmentManager>();
            InspectionHandler = GetComponent<PlayerInspectionHandler>();
            DetectiveBoardController = GetComponent<DetectiveBoardController>();

            PlayerCamera = GetComponentInChildren<Camera>();
            ArmsSystem = GetComponentInChildren<OctoIkArmsImproved>();

            if (PlayerCamera != null)
            {
                CameraTransform = PlayerCamera.transform;
                CameraPivot = CameraTransform.parent;
            }

            CacheSprintAction();
        }

        /// <summary>
        /// Resolves the Sprint InputAction once from OctoCore to avoid per-frame foreach iteration.
        /// </summary>
        private void CacheSprintAction()
        {
            if (OctoCore.OctoCore.Instance?.Inputs?.Actions == null) return;

            foreach (var actionInfo in OctoCore.OctoCore.Instance.Inputs.Actions)
            {
                if (actionInfo.Name == "Sprint" && actionInfo.Reference != null)
                {
                    _sprintAction = actionInfo.Reference.action;
                    break;
                }
            }
        }

        // Teleport
        public void Teleport(Vector3 position, Quaternion rotation)
        {
            Movement.Teleport(position, rotation);
            PlayerEvents.TriggerTeleport(position, rotation);
        }

        // Helper methods
        public Vector3 GetForward()
        {
            if (PlayerCamera == null) return transform.forward;

            Vector3 forward = PlayerCamera.transform.forward;
            forward.y = 0;
            return forward.normalized;
        }

        public Vector3 GetRight()
        {
            if (PlayerCamera == null) return transform.right;

            Vector3 right = PlayerCamera.transform.right;
            right.y = 0;
            return right.normalized;
        }
    }
}