// 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.IO;
using NUnit.Framework;
using osu.Game.Beatmaps.Formats;
using osu.Game.Rulesets.Catch;
using osu.Game.Rulesets.Scoring;
using osu.Game.Scoring;
using osu.Game.Scoring.Legacy;
using osu.Game.Tests.Resources;

namespace osu.Game.Tests.Beatmaps.Formats
{
    public class LegacyScoreEncoderTest
    {
        [TestCase(1, 3)]
        [TestCase(1, 0)]
        [TestCase(0, 3)]
        public void CatchMergesFruitAndDropletMisses(int missCount, int largeTickMissCount)
        {
            var ruleset = new CatchRuleset().RulesetInfo;

            var scoreInfo = TestResources.CreateTestScoreInfo(ruleset);
            var beatmap = new TestBeatmap(ruleset);
            scoreInfo.Statistics = new Dictionary<HitResult, int>
            {
                [HitResult.Great] = 50,
                [HitResult.LargeTickHit] = 5,
                [HitResult.Miss] = missCount,
                [HitResult.LargeTickMiss] = largeTickMissCount
            };
            var score = new Score { ScoreInfo = scoreInfo };

            var decodedAfterEncode = encodeThenDecode(LegacyBeatmapDecoder.LATEST_VERSION, score, beatmap);

            Assert.That(decodedAfterEncode.ScoreInfo.GetCountMiss(), Is.EqualTo(missCount + largeTickMissCount));
        }

        private static Score encodeThenDecode(int beatmapVersion, Score score, TestBeatmap beatmap)
        {
            var encodeStream = new MemoryStream();

            var encoder = new LegacyScoreEncoder(score, beatmap);
            encoder.Encode(encodeStream);

            var decodeStream = new MemoryStream(encodeStream.GetBuffer());

            var decoder = new LegacyScoreDecoderTest.TestLegacyScoreDecoder(beatmapVersion);
            var decodedAfterEncode = decoder.Parse(decodeStream);
            return decodedAfterEncode;
        }
    }
}