using Encompass;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using PongFE.Components;
using PongFE.Enums;
using SpriteFontPlus;

namespace PongFE.Renderers
{
    public class TitleRenderer : GeneralRenderer
    {
        private SpriteBatch SpriteBatch { get; }
        private DynamicSpriteFont TitleFont { get; }
        private DynamicSpriteFont InstructionFont { get; }

        public TitleRenderer(SpriteBatch spriteBatch, DynamicSpriteFont titleFont, DynamicSpriteFont instructionFont)
        {
            SpriteBatch = spriteBatch;
            TitleFont = titleFont;
            InstructionFont = instructionFont;
        }

        public override void Render()
        {
            ref readonly var gameStateComponent = ref ReadComponent<GameStateComponent>();
            ref readonly var playAreaComponent = ref ReadComponent<PlayAreaComponent>();

            if (gameStateComponent.GameState == GameState.Title)
            {
                var titleDimensions = TitleFont.MeasureString("PongFE");
                var titlePosition = new Vector2(
                    (playAreaComponent.Width - titleDimensions.X) / 2,
                    (playAreaComponent.Height - titleDimensions.Y) / 4
                );

                var instructionDimensions = InstructionFont.MeasureString("Press Enter to begin");
                var instructionPosition = new Vector2(
                    (playAreaComponent.Width - instructionDimensions.X) / 2,
                    playAreaComponent.Height * 2 / 3
                );

                SpriteBatch.DrawString(TitleFont, "PongFE", titlePosition, Color.White);
                SpriteBatch.DrawString(InstructionFont, "Press Enter to begin", instructionPosition, Color.White);
            }
        }
    }
}