using SoulHarvest.Common;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using ReLogic.Content;
using System;
using System.Collections.Generic;
using Terraria;
using Terraria.GameContent;
using Terraria.Localization;
using Terraria.ModLoader;
using Terraria.UI;

namespace SoulHarvest.UI;

internal class SoulIconElement : UIElement
{
    private readonly Asset<Texture2D> texture = ModContent.Request<Texture2D>("SoulHarvest/UI/SoulIcon");

    public override void Update(GameTime gameTime)
    {
        base.Update(gameTime);

        // Keep the soul icon below the minimap and its vertical zoom controls. UI coordinates are
        // scaled, so clamp against the usable UI height for smaller resolutions as well.
        float uiHeight = Main.screenHeight / Main.UIScale;
        float targetTop = Main.mapStyle == 1 && !Main.mapFullscreen ? 430f : 170f;
        targetTop = MathHelper.Clamp(targetTop, 120f, Math.Max(120f, uiHeight - 112f));
        if (Math.Abs(Top.Pixels - targetTop) > 0.5f)
        {
            Top.Set(targetTop, 0f);
            Recalculate();
        }

        if (ContainsPoint(Main.MouseScreen))
            Main.LocalPlayer.mouseInterface = true;
    }

    public override void RightClick(UIMouseEvent evt)
    {
        base.RightClick(evt);
        SoulIconUISystem.RequestEssenceExtraction();
    }

    public override void LeftClick(UIMouseEvent evt)
    {
        base.LeftClick(evt);
        SoulIconUISystem.RequestEssenceAbsorption();
    }

    protected override void DrawSelf(SpriteBatch spriteBatch)
    {
        base.DrawSelf(spriteBatch);
        CalculatedStyle dimensions = GetDimensions();
        Vector2 center = new(dimensions.X + dimensions.Width / 2f, dimensions.Y + 41f);
        float pulse = 1f + (float)Math.Sin(Main.GlobalTimeWrappedHourly * 3.2f) * 0.035f;
        float scale = 76f / texture.Value.Height * pulse;
        Vector2 origin = texture.Value.Size() / 2f;

        Color aura = new Color(70, 125, 255, 0) * 0.22f;
        for (int direction = 0; direction < 4; direction++)
        {
            Vector2 offset = (MathHelper.PiOver2 * direction + Main.GlobalTimeWrappedHourly).ToRotationVector2() * 2.5f;
            spriteBatch.Draw(texture.Value, center + offset, null, aura, 0f, origin, scale, SpriteEffects.None, 0f);
        }
        spriteBatch.Draw(texture.Value, center, null, Color.White, 0f, origin, scale, SpriteEffects.None, 0f);

        for (int index = 0; index < 3; index++)
        {
            float angle = Main.GlobalTimeWrappedHourly * (1.3f + index * 0.2f) + index * MathHelper.TwoPi / 3f;
            Vector2 wisp = center + angle.ToRotationVector2() * (29f + index * 3f);
            Color color = index % 2 == 0 ? new Color(80, 235, 255) : new Color(195, 90, 255);
            spriteBatch.Draw(TextureAssets.MagicPixel.Value, new Rectangle((int)wisp.X, (int)wisp.Y, 3, 3), color * 0.85f);
        }

        int souls = Main.LocalPlayer.GetModPlayer<MyPlayer>().Souls;
        string countText = Language.GetTextValue("Mods.SoulHarvest.UI.SoulCount", souls);
        Vector2 textSize = FontAssets.MouseText.Value.MeasureString(countText) * 0.8f;
        Utils.DrawBorderString(spriteBatch, countText, new Vector2(center.X - textSize.X / 2f, dimensions.Y + 82f), new Color(120, 235, 255), 0.8f);

        if (IsMouseHovering)
            Main.instance.MouseText(Language.GetTextValue("Mods.SoulHarvest.UI.SoulIconHint", MyPlayer.SoulsPerEssence));
    }
}