using Johnmagotchi.Core.tools;
using Johnmagotchi.GameContent.Objects;
using Johnmagotchi.Screen.BattleMapScreens;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection.Metadata;
using System.Text;
using System.Threading.Tasks;
using TibzGame.Core.ScreenManager;


namespace Johnmagotchi.GameContent.Screens.Menu
    {
    public abstract class BaseMapMenu : GameScreen
    {
        protected GameScreen ParentGameScreen;
        protected SpriteBatch spriteBatch;
        public SpriteEffects currentSpriteEffects;

        protected int xPos;
        protected int yPos;

        protected int xDrawOffset;
        protected int yDrawOffset;

        protected int SelectedIndex;
        protected MenuOption[] CurrentOptions;

        protected Texture2D button;
        protected Texture2D buttonHighlight;
        protected SpriteFont kemco;
        protected SpriteFont pixsplit;
        protected int screenQuadrant; // 1 - top left, 2 top right, 3 bottom left, 4 bottom right. if right, submenus push out left. if bottom, start drawing from bottom up

        public BaseMapMenu(GameScreen parentScreen, int x, int y, int screenQuadrant)
        {
            ParentGameScreen = parentScreen;
            xPos = x;
            yPos = y;
            this.screenQuadrant = screenQuadrant;
            isUpdatePriority = true;
            SelectedIndex = 0;

            // Child class needs to init: 
            // parent screen
            // CurrentOptions List
            // X & Y Draw Offsets

        }

        public override void Init()
        {
            spriteBatch = new SpriteBatch(screenManager.GraphicsDevice);
            button = screenManager.contentRef.Load<Texture2D>("Map-UI/test-menu-item-64-28");
            buttonHighlight = screenManager.contentRef.Load<Texture2D>("Map-UI/test-menu-item-64-28-selected");
            //load fonts
            kemco = screenManager.contentRef.Load<SpriteFont>("Fonts/Kemco-20");
            pixsplit = screenManager.contentRef.Load<SpriteFont>("Fonts/PixelSplitter");
            ChildInit();
        }

        public override void Update()
        {

            if (ScreenManager.inputs.isMouseMode)
            {
                //Handle Mouse Buttons
                if (screenManager.inputs.mouseInput.leftClick.isJustPressed)
                {
                    screenManager.inputs.editorInputs.confirm.isJustPressed = true;
                }
                if (screenManager.inputs.mouseInput.rightClick.isJustPressed)
                {
                    screenManager.inputs.editorInputs.cancel.isJustPressed = true;
                }
                HandleMouseCursor();
            }
            else
            {
                if (screenManager.inputs.editorInputs.navUp.isJustPressed)
                {
                    SelectedIndex--;
                    if (SelectedIndex < 0) { SelectedIndex = CurrentOptions.Length - 1; }
                }
                if (screenManager.inputs.editorInputs.navDown.isJustPressed)
                {
                    SelectedIndex++;
                    if (SelectedIndex >= CurrentOptions.Length) { SelectedIndex = 0; }
                }
            }

            if (screenManager.inputs.editorInputs.cancel.isJustPressed)
            {
                TibzLog.Debug("Removing screen");
                screenManager.removeTopScreens(1); // remove this screen
            }

            //Child should implement what happens on confirm
            ChildUpdate();
        }

        public abstract void ChildInit();
        public abstract void ChildUpdate();
        public override void Draw()
        {
            spriteBatch.Begin(SpriteSortMode.Deferred, null, SamplerState.PointClamp);

            int yOffset = yDrawOffset;
            if (screenQuadrant > 2)
            { // adjust y offset so it starts a full length higher up

            }

            //------------------------- Draw boxes -----------------------------
            for (int i = CurrentOptions.Length; i > 0; i--)
            {
                Texture2D buttonSprite = button;
                if (i - 1 == SelectedIndex)
                {
                    buttonSprite = buttonHighlight;
                }
                // Box
                Rectangle tileRect = screenManager.GetScaledRectangle(xPos - xDrawOffset, yPos - yOffset, 6400, 2800);
                spriteBatch.Draw(
                             buttonSprite, tileRect, null, Color.White, 0, new Vector2(0, 0),
                             currentSpriteEffects, 1);

                // increase offset for next item
                yOffset += 2800;
            }

            // ------------------------- Draw text -----------------------------
            yOffset = yDrawOffset;
            int textOffsetX = 1000;
            int textOffsetY = 1000;
            for (int j = CurrentOptions.Length; j > 0; j--)
            {
                int i = j - 1;
                //text
                Vector2 position = new(screenManager.getScaledIntX(xPos - xDrawOffset + textOffsetX), screenManager.getScaledIntY(yPos - (yOffset - textOffsetY)));  // add 20 to each
                Vector2 textRotationOrigin = new Vector2(0, 0);
                spriteBatch.DrawString(kemco, CurrentOptions[i].OptionLabel, position, Color.Black, 0, textRotationOrigin, 00.75f, SpriteEffects.None, 1.0f);
                // increase offset for next item
                yOffset += 2800;
            }

            spriteBatch.End();
        }
        public override void Destroy()
        {

        }

        private void HandleMouseCursor()
        {
            int x = screenManager.inputs.mouseInput.x;
            int y = screenManager.inputs.mouseInput.y - ScreenManager.getScaledIntY(2800); // subtract 2800 since y axis is negative, you want to allign with top bound vs bottom bound
            TibzLog.Debug("Mouse y -   " + y);


            //screenManager.GetScaledRectangle(xPos - xDrawOffset, yPos - yOffset, 6400, 2800);
            int yOffset = yDrawOffset;
            for (int i = CurrentOptions.Length; i > 0; i--)
            {
                if (y <= ScreenManager.getScaledIntY(yPos - yOffset))
                {
                    SelectedIndex = i-1;
                }
                yOffset += 2800;
            }

            //ToDo = deselect on X out of bounds and Y out of bounds
        }
    }
}