using System.Numerics;
using Raylib_cs;

namespace DaggerFramework
{
    public class RaylibInputHandler : InputHandler
    {
        public override int GetCharPressed()
        {
            return Raylib.GetCharPressed();
        }

        public override Vector2 GetInputDirection(KeyboardKey leftKey, KeyboardKey rightKey, KeyboardKey upKey, KeyboardKey downKey)
        {
            Vector2 dir = Vector2.Zero;

            if (IsKeyboardKeyDown(leftKey))
                dir += new Vector2(-1, 0);
            if (IsKeyboardKeyDown(rightKey))
                dir += new Vector2(1, 0);
            if (IsKeyboardKeyDown(upKey))
                dir += new Vector2(0, -1);
            if (IsKeyboardKeyDown(downKey))
                dir += new Vector2(0, 1);

            return dir == Vector2.Zero ? Vector2.Zero : Vector2.Normalize(dir);
        }

        public override Vector2 GetMousePosition()
        {
            return Raylib.GetMousePosition();
        }

        public override float GetMouseWheelMovement()
        {
            return Raylib.GetMouseWheelMove();
        }

        public override void HideCursor()
        {
            Raylib.HideCursor();
        }

        public override bool IsActionDown(string action)
        {
            // throw new NotImplementedException();
            // return inputMappings[action].IsPressed();
            foreach (InputAction inputAction in inputMappings[action])
                if (inputAction.IsDown(this)) return true;

            return false;
        }

        public override bool IsActionJustPressed(string action)
        {
            foreach (InputAction inputAction in inputMappings[action])
                if (inputAction.IsPressed(this)) return true;

            return false;
        }

        public override bool IsKeyboardKeyDown(DaggerFramework.KeyboardKey key)
        {
            Raylib_cs.KeyboardKey rayKey = (Raylib_cs.KeyboardKey)key;
            OnInput?.Invoke();
            return Raylib.IsKeyDown(rayKey);
        }

        public override bool IsMouseButtonDown(MouseButton button)
        {
            return Raylib.IsMouseButtonDown((Raylib_cs.MouseButton)button);
        }

        public override bool KeyboardKeyJustPressed(KeyboardKey key)
        {
            Raylib_cs.KeyboardKey rayKey = (Raylib_cs.KeyboardKey)key;
            return Raylib.IsKeyPressed(rayKey);
        }

        public override void SetMousePosition(Vector2 position)
        {
            Raylib.SetMousePosition((int)position.X, (int)position.Y);
        }
        public override void ShowCursor() => Raylib.ShowCursor();
        public override bool IsCursorHidden() => Raylib.IsCursorHidden();
    }
}