// 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.Collections.Generic;
using System.Linq;
using osu.Framework.Extensions.LocalisationExtensions;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Graphics;
using osu.Game.Graphics.Containers;
using osu.Game.Users;
using osu.Game.Scoring;
using osu.Framework.Localisation;
using osu.Game.Resources.Localisation.Web;

namespace osu.Game.Overlays.Rankings.Tables
{
    public abstract class UserBasedTable : RankingsTable<UserStatistics>
    {
        protected UserBasedTable(int page, IReadOnlyList<UserStatistics> rankings)
            : base(page, rankings)
        {
        }

        protected virtual IEnumerable<LocalisableString> GradeColumns => new List<LocalisableString> { RankingsStrings.Statss, RankingsStrings.Stats, RankingsStrings.Stata };

        protected override Drawable CreateRowBackground(UserStatistics item)
        {
            var background = base.CreateRowBackground(item);

            // see: https://github.com/ppy/osu-web/blob/9de00a0b874c56893d98261d558d78d76259d81b/resources/views/multiplayer/rooms/_rankings_table.blade.php#L23
            if (!item.User.Active)
                background.Alpha = 0.5f;

            return background;
        }

        protected override Drawable[] CreateRowContent(int index, UserStatistics item)
        {
            var content = base.CreateRowContent(index, item);

            // see: https://github.com/ppy/osu-web/blob/9de00a0b874c56893d98261d558d78d76259d81b/resources/views/multiplayer/rooms/_rankings_table.blade.php#L23
            if (!item.User.Active)
            {
                foreach (var d in content)
                    d.Alpha = 0.5f;
            }

            return content;
        }

        protected override RankingsTableColumn[] CreateAdditionalHeaders() => new[]
            {
                new RankingsTableColumn(RankingsStrings.StatAccuracy, Anchor.Centre, new Dimension(GridSizeMode.AutoSize)),
                new RankingsTableColumn(RankingsStrings.StatPlayCount, Anchor.Centre, new Dimension(GridSizeMode.AutoSize)),
            }.Concat(CreateUniqueHeaders())
             .Concat(GradeColumns.Select(grade => new GradeTableColumn(grade, Anchor.Centre, new Dimension(GridSizeMode.AutoSize))))
             .ToArray();

        protected sealed override Country GetCountry(UserStatistics item) => item.User.Country;

        protected sealed override Drawable CreateFlagContent(UserStatistics item)
        {
            var username = new LinkFlowContainer(t => t.Font = OsuFont.GetFont(size: TEXT_SIZE, italics: true))
            {
                AutoSizeAxes = Axes.X,
                RelativeSizeAxes = Axes.Y,
                TextAnchor = Anchor.CentreLeft
            };
            username.AddUserLink(item.User);
            return username;
        }

        protected sealed override Drawable[] CreateAdditionalContent(UserStatistics item) => new[]
        {
            new ColouredRowText { Text = item.DisplayAccuracy, },
            new ColouredRowText { Text = item.PlayCount.ToLocalisableString(@"N0") },
        }.Concat(CreateUniqueContent(item)).Concat(new[]
        {
            new ColouredRowText { Text = (item.GradesCount[ScoreRank.XH] + item.GradesCount[ScoreRank.X]).ToLocalisableString(@"N0"), },
            new ColouredRowText { Text = (item.GradesCount[ScoreRank.SH] + item.GradesCount[ScoreRank.S]).ToLocalisableString(@"N0"), },
            new ColouredRowText { Text = item.GradesCount[ScoreRank.A].ToLocalisableString(@"N0"), }
        }).ToArray();

        protected abstract RankingsTableColumn[] CreateUniqueHeaders();

        protected abstract Drawable[] CreateUniqueContent(UserStatistics item);

        private class GradeTableColumn : RankingsTableColumn
        {
            public GradeTableColumn(LocalisableString? header = null, Anchor anchor = Anchor.TopLeft, Dimension dimension = null, bool highlighted = false)
                : base(header, anchor, dimension, highlighted)
            {
            }

            public override HeaderText CreateHeaderText() => new GradeHeaderText(Header, Highlighted);
        }

        private class GradeHeaderText : HeaderText
        {
            public GradeHeaderText(LocalisableString text, bool isHighlighted)
                : base(text, isHighlighted)
            {
                Margin = new MarginPadding
                {
                    // Grade columns have extra horizontal padding for readibility
                    Horizontal = 20,
                    Vertical = 5
                };
            }
        }
    }
}