using UnityEngine;
using System.Collections;
using Game.CharacterController;
using Spine.Unity;

namespace Game.Player {

    public class PlayerAnimationController : MonoBehaviour
    {

        //public Animator animator;
        public SkeletonAnimation SpineInstance;
        private PlayerInput _playerInput;
        private WeaponSystem _playerWeaponSystem;

        public struct AnimState {
            public bool isWalking;
            public bool isAttacking;

            public Spine.TrackEntry motionTrack;
            public Spine.TrackEntry attackTrack;

            public void Reset()
            {
                isWalking = isAttacking = false;
                attackTrack = motionTrack = null;
            }
        }

        public AnimState _animState;

        void Awake() {
            _playerInput = GetComponent<PlayerInput> ();
            _playerWeaponSystem = GetComponent<WeaponSystem> ();
            RegisterEvents ();

            _animState.Reset ();

        }

        void Start() {
            SpineInstance.AnimationState.Start += delegate (Spine.TrackEntry trackEntry) {
                // You can also use an anonymous delegate.
                Debug.Log(string.Format("track {0} started a new animation.", trackEntry.TrackIndex));
            };

            //set the character to idle
            _animState.motionTrack = SpineInstance.AnimationState.SetAnimation (0, "Idle", true);

        }

        void RegisterEvents() {

            //listen to events from PlayerInput
            _playerInput.events.OnWalk.AddListener(OnWalk);
            _playerInput.events.OnWalkStop.AddListener (OnWalkStop);
            _playerInput.events.OnJumpStart.AddListener (OnJumpStart);

            //listen to events from the weapon system
            _playerWeaponSystem.events.OnBlockStart.AddListener(OnBlockStart);
            _playerWeaponSystem.events.OnBlockEnd.AddListener(OnBlockEnd);
            _playerWeaponSystem.events.OnAttackStart.AddListener (OnAttackStart);
            _playerWeaponSystem.events.OnHeavyAttackStart.AddListener (OnHeavyAttackStart);
            _playerWeaponSystem.events.OnWarcryHealStart.AddListener (OnWarcry);
            _playerWeaponSystem.events.OnWarcrySlowTimeStart.AddListener (OnWarcry);

        }

        #region Player Movement
        public void OnWalk() {

            if (!_animState.isWalking) {
                _animState.motionTrack = SpineInstance.AnimationState.SetAnimation (0, "Run-1", true);
                _animState.isWalking = true;
            }
            //animator.SetBool ("IsWalking", true);
        }

        public void OnWalkStop() {

            if (_animState.isWalking) {
                _animState.motionTrack = SpineInstance.AnimationState.SetAnimation (0, "Idle", true);
                _animState.isWalking = false;
            }

            //animator.SetBool ("IsWalking", false);
        }

        public void OnJumpStart() {
            //animator.SetBool ("IsJumping", true);
        }
        #endregion

        #region Player Weapon System
        public void OnBlockStart() {
            //animator.SetBool ("IsBlocking", true);
        }
        public void OnBlockEnd() {
            //animator.SetBool ("IsBlocking", false);
        }

        public void OnAttackStart() {

            if (!_animState.isAttacking) {

                _animState.attackTrack = SpineInstance.AnimationState.SetAnimation (1, "Attack_normal-down", false);
                _animState.attackTrack.Alpha = 1f;
                _animState.attackTrack.AnimationEnd = 0.6f;
                _animState.attackTrack.TimeScale = 1.2f;

                //we need to disable the attack until the animation is completed
                _playerWeaponSystem.mainHandWeapon.canAttack = false;

                _animState.attackTrack.Complete += delegate(Spine.TrackEntry trackEntry) {
                    //Debug.Log("Ended");
                    //Debug.Break();
                    _animState.isAttacking = false;
                    _playerWeaponSystem.mainHandWeapon.canAttack = true;
                    SpineInstance.AnimationState.ClearTrack(1);
                };

                _animState.isAttacking = true;
            }

            //animator.SetBool ("IsAttacking", true);
        }


        public void OnHeavyAttackStart() {
            //animator.SetBool ("IsHeavyAttacking", true);
        }

        #endregion

        #region Player Warcries

        public void OnWarcry() {
            //animator.SetBool ("IsUsingWarcry", true);
        }

        #endregion


    }

}