using System.Collections.Generic;

namespace Invector
{
    public static class vMobileInputActions
    {
        private sealed class State
        {
            public bool pressed;
            public int down;
            public int up;
            public int readDown;
            public int readUp;
        }

        private static readonly Dictionary<string, State> states = new Dictionary<string, State>();

        public static void SetButton(string actionName, bool pressed)
        {
            if (!states.TryGetValue(actionName, out var state))
            {
                state = new State();
                states.Add(actionName, state);
            }

            if (state.pressed == pressed) return;
            state.pressed = pressed;
            if (pressed) state.down++;
            else state.up++;
        }

        public static bool GetButton(string actionName) => states.TryGetValue(actionName, out var state) && state.pressed;

        public static bool GetButtonDown(string actionName)
        {
            if (!states.TryGetValue(actionName, out var state) || state.down == state.readDown) return false;
            state.readDown = state.down;
            return true;
        }

        public static bool GetButtonUp(string actionName)
        {
            if (!states.TryGetValue(actionName, out var state) || state.up == state.readUp) return false;
            state.readUp = state.up;
            return true;
        }
    }
}