// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.

using System;
using System.Collections.Generic;
using System.Linq;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Graphics;
using osu.Game.Online.API.Requests.Responses;

namespace osu.Game.Overlays.Dashboard.Home.News
{
    public class HomeNewsGroupPanel : HomePanel
    {
        private readonly List<APINewsPost> posts;

        public HomeNewsGroupPanel(List<APINewsPost> posts)
        {
            this.posts = posts;
        }

        [BackgroundDependencyLoader]
        private void load()
        {
            Content.Padding = new MarginPadding { Vertical = 5 };

            Child = new FillFlowContainer<CollapsedNewsPanel>
            {
                RelativeSizeAxes = Axes.X,
                AutoSizeAxes = Axes.Y,
                Direction = FillDirection.Vertical,
                Children = posts.Select(p => new CollapsedNewsPanel(p)).ToArray()
            };
        }

        private class CollapsedNewsPanel : HomeNewsPanelFooter
        {
            public CollapsedNewsPanel(APINewsPost post)
                : base(post)
            {
            }

            protected override Drawable CreateContent(APINewsPost post) => new NewsTitleLink(post);

            protected override NewsPostDrawableDate CreateDate(DateTimeOffset date) => new Date(date);

            private class Date : NewsPostDrawableDate
            {
                public Date(DateTimeOffset date)
                    : base(date)
                {
                }

                protected override Drawable CreateDate(DateTimeOffset date, OverlayColourProvider colourProvider)
                {
                    var drawableDate = new TextFlowContainer(t =>
                    {
                        t.Colour = colourProvider.Light1;
                    })
                    {
                        Anchor = Anchor.TopRight,
                        Origin = Anchor.TopRight,
                        AutoSizeAxes = Axes.Both,
                        Direction = FillDirection.Horizontal,
                        Margin = new MarginPadding { Vertical = 5 }
                    };

                    drawableDate.AddText($"{date:dd} ", t =>
                    {
                        t.Font = OsuFont.GetFont(size: 14, weight: FontWeight.Bold);
                    });

                    drawableDate.AddText($"{date:MMM}", t =>
                    {
                        t.Font = OsuFont.GetFont(size: 14, weight: FontWeight.Regular);
                    });

                    return drawableDate;
                }
            }
        }
    }
}