using F4SD.Gamification;
using F4SD.Gamification.Services;
using System;
using System.Windows.Controls;
using System.Windows.Media;

namespace FasdDesktopUi.Basics.UserControls.Gamification
{
    public partial class LevelTracker : UserControl
    {
        public LevelTracker()
        {
            InitializeComponent();
        }

        private double GetCircumferenceOfCoverEllipse()
        {
            return (2 * Math.PI * (CoverEllipse.Height / 2.0 - CoverEllipse.StrokeThickness / 2.0)) / CoverEllipse.StrokeThickness;
        }

        protected override void OnInitialized(EventArgs e)
        {
            CoverEllipse.StrokeDashArray = new DoubleCollection() { GetCircumferenceOfCoverEllipse() };
            LevelService.ExperiencePointsChanged += UpdateExperiencePoints;

            base.OnInitialized(e);
        }

        private void UpdateExperiencePoints(object sender, LevelEventArgs e)
        {
            LevelValueTextBlock.Text = e.CurrentLevel.ToString();
            double relativeProgress = (double)e.CurrentXp / (double)e.XpRequiredForLevelUp;
            CoverEllipse.StrokeDashOffset = (GetCircumferenceOfCoverEllipse() * relativeProgress) * -1.0;

            LevelTitelTextBlock.Text = e.LevelTitle;
            XpTextBlock.Text = $"{e.CurrentXp} / {e.XpRequiredForLevelUp} XP";
        }
    }
}