using System;
using UnityEngine;
using UnityEngine.InputSystem;
using NeonTea.Quakeball.Interface;
using NeonTea.Quakeball.Networking.Packets;

namespace NeonTea.Quakeball.Players {
    /// <summary>A controller class for a local player. Handles input and updates the relevant components.</summary>
    [RequireComponent(typeof(Player))]
    public class LocalPlayer : MonoBehaviour {
        public int DisableInput;
        public float SyncInterval = 1;
        public float MovementUpdateInterval = 1f;

        public Player Player { private set; get; }
        public InputAction LookAction { private set; get; }
        private InputAction MoveAction;
        private InputAction CrouchAction;
        private InputAction JumpAction;
        private InputAction ShootAction;
        private InputAction SwitchUpAction;

        private InputAction[] WeaponSwitchActions = new InputAction[9];

        private float PreviousPlayerUpdate = -1;
        private float PreviousPlayerFullSync = -1;
        private bool WantsToJump = false;

        private void Awake() {
            Player = GetComponent<Player>();

            CrouchAction = new InputAction("crouch", binding: "<Gamepad>/buttonEast");
            CrouchAction.AddBinding("<Keyboard>/leftShift");

            JumpAction = new InputAction("crouch", binding: "<Gamepad>/buttonSouth");
            JumpAction.AddBinding("<Keyboard>/space");
            JumpAction.performed += _ => {
                WantsToJump = true;
            };

            LookAction = new InputAction("look", binding: "<Gamepad>/leftStick");
            LookAction.AddBinding("<Mouse>/delta");

            MoveAction = new InputAction("move", binding: "<Gamepad>/rightStick");
            MoveAction.AddCompositeBinding("Dpad")
                .With("Up", "<Keyboard>/w")
                .With("Down", "<Keyboard>/s")
                .With("Left", "<Keyboard>/a")
                .With("Right", "<Keyboard>/d");

            ShootAction = new InputAction("Shoot", binding: "<Mouse>/leftButton");
            ShootAction.performed += _ => {
                if (Networking.Net.Singleton.Instance != null) {
                    ShootData shootData = new ShootData(Player.Pitch, Player.Yaw, Player.CreateSyncPacket());
                    Networking.Net.Singleton.Instance.LocalPlayerAction(PlayerAction.Shoot, shootData);
                }
                Player.Shoot();
            };
            Action<InputAction.CallbackContext> CreateLambda(int number) {
                return (context) => {
                    Player.SwitchItem(number);
                    Player.CurrentItem.Animator.enabled = true;
                };
            }
            for (int i = 0; i < 9; i++) {
                WeaponSwitchActions[i] = new InputAction($"Switch to weapon {i + 1}", binding: $"<Keyboard>/{i + 1}");
                WeaponSwitchActions[i].performed += CreateLambda(i);
            }

            Terminal.Singleton.RegisterCommand("tp", args => {
                if (args.Length != 3) {
                    return false;
                }
                transform.position = new Vector3(float.Parse(args[0]), float.Parse(args[1]), float.Parse(args[2]));
                return true;
            }, "tp x y z - Teleports the local player to the specified coordinates.");
        }

        private void Update() {
            if (DisableInput > 0 || !Application.isFocused) {
                CrouchAction.Disable();
                JumpAction.Disable();
                LookAction.Disable();
                MoveAction.Disable();
                ShootAction.Disable();
                foreach (InputAction action in WeaponSwitchActions) {
                    action.Disable();
                }
                Cursor.lockState = CursorLockMode.None;
                Cursor.visible = true;
            } else {
                CrouchAction.Enable();
                JumpAction.Enable();
                LookAction.Enable();
                MoveAction.Enable();
                ShootAction.Enable();
                foreach (InputAction action in WeaponSwitchActions) {
                    action.Enable();
                }
                Cursor.visible = false;
                Cursor.lockState = CursorLockMode.Locked;
            }

            OptionsData Opts = Options.Get();

            Vector2 LookInput = LookAction.ReadValue<Vector2>() * Opts.LookSensitivity;
            Player.Pitch = Mathf.Clamp(Player.Pitch - LookInput.y * (Opts.InvertVerticalLook ? -1 : 1), -90, 90);
            Player.Yaw += LookInput.x;

            if (Time.time - PreviousPlayerUpdate >= MovementUpdateInterval) {
                PreviousPlayerUpdate = Time.time;
                if (Player.IsDead) {
                    return;
                }

                Vector2 MovementInput = MoveAction.ReadValue<Vector2>();
                Vector3 Move = new Vector3(MovementInput.x, 0, MovementInput.y);
                Move = Quaternion.Euler(0, Player.Yaw, 0) * Move;
                Player.MoveDirection = Move;
                Player.CurrentMoveStyle = CrouchAction.ReadValue<float>() > 0 ? (byte)1 : (byte)0;
                if (Networking.Net.Singleton.Instance != null) {
                    Networking.Net.Singleton.Instance.UpdateLocalPlayer();
                }

                if (WantsToJump) {
                    bool Jumped = Player.Jump();
                    if (Jumped && Networking.Net.Singleton.Instance != null) {
                        Networking.Net.Singleton.Instance.LocalPlayerAction(PlayerAction.Jump);
                    }
                }
                WantsToJump = false;
            }

            if (Time.time - PreviousPlayerFullSync >= SyncInterval) {
                PreviousPlayerFullSync = Time.time;
                if (Networking.Net.Singleton.Instance != null) {
                    Networking.Net.Singleton.Instance.SendPlayerSync();
                }
            }
        }
    }
}