using UnityEngine;
using UnityEngine.InputSystem;

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

        private float Lean = 0;

        private Player Player;
        private InputAction LookAction;
        private InputAction MoveAction;
        private InputAction CrouchAction;
        private InputAction JumpAction;

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

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

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

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

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

            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");
            MoveAction.Enable();
        }

        private void Start() {
            Cursor.visible = false;
            Cursor.lockState = CursorLockMode.Locked;
        }

        private void Update() {
            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;
            float TargetLean = -Vector3.Dot(Player.GroundVelocity / Player.MoveStyle.TargetVelocity, Camera.right) * Player.MoveStyle.LeanDegrees;
            Lean = Mathf.Lerp(Lean, TargetLean, 30f * Time.deltaTime);
            Camera.localEulerAngles = new Vector3(Player.Pitch, Player.Yaw, Lean);

            if (Time.time - PreviousPlayerUpdate >= 1f / PlayerUpdateFrequency) {
                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;
                Player.Jumping = WantsToJump;
                PreviousPlayerUpdate = Time.time;

                WantsToJump = false;
            }
        }
    }
}