using NUnit.Framework;
using SVSim.BattleNode.Bridge;
using SVSim.BattleNode.Lifecycle;
using SVSim.BattleNode.Protocol;
using SVSim.BattleNode.Protocol.Bodies;

namespace SVSim.UnitTests.BattleNode.Lifecycle;

[TestFixture]
public class ScriptedLifecycleTests
{
    [Test]
    public void BuildMatched_PutsOppoIdInSelfInfoEqualToTheRealOpponentVid()
    {
        var env = ScriptedLifecycle.BuildMatched(FixtureCtx(),
            playerViewerId: 906243102, opponentViewerId: 847666884, battleId: "b");

        Assert.That(env.Uri, Is.EqualTo(NetworkBattleUri.Matched));
        var body = (MatchedBody)env.Body;
        Assert.That(body.SelfInfo.OppoId, Is.EqualTo(847666884L));
        Assert.That(body.OppoInfo.OppoId, Is.EqualTo(906243102L));
        Assert.That(env.Bid, Is.EqualTo("b"));
    }

    [Test]
    public void BuildMatched_ContainsThirtyCardSelfDeck()
    {
        var env = ScriptedLifecycle.BuildMatched(FixtureCtx(), 1, 2, "b");
        var body = (MatchedBody)env.Body;
        Assert.That(body.SelfDeck.Count, Is.EqualTo(30));
    }

    [Test]
    public void BuildMatched_deck_idxs_pair_1to30_with_context_card_ids()
    {
        var draftedDeck = Enumerable.Range(1, 30).Select(i => 200_000_000L + i).ToList();
        var env = ScriptedLifecycle.BuildMatched(FixtureCtx(draftedDeck), 1, 2, "b");
        var body = (MatchedBody)env.Body;

        for (int i = 0; i < 30; i++)
        {
            Assert.That(body.SelfDeck[i].Idx, Is.EqualTo(i + 1),
                $"slot {i}: idx should be 1-based position");
            Assert.That(body.SelfDeck[i].CardId, Is.EqualTo(200_000_000L + i + 1),
                $"slot {i}: cardId should be the drafted card");
        }
    }

    [Test]
    public void BuildMatched_selfInfo_cosmetics_flow_from_context()
    {
        var ctx = FixtureCtx() with
        {
            CountryCode = "JPN", UserName = "Drafter", SleeveId = "999",
            EmblemId = "888", DegreeId = "777", FieldId = 42, IsOfficial = 1,
        };

        var env = ScriptedLifecycle.BuildMatched(ctx, 1, 2, "b");
        var body = (MatchedBody)env.Body;

        Assert.That(body.SelfInfo.CountryCode, Is.EqualTo("JPN"));
        Assert.That(body.SelfInfo.UserName, Is.EqualTo("Drafter"));
        Assert.That(body.SelfInfo.SleeveId, Is.EqualTo("999"));
        Assert.That(body.SelfInfo.EmblemId, Is.EqualTo("888"));
        Assert.That(body.SelfInfo.DegreeId, Is.EqualTo("777"));
        Assert.That(body.SelfInfo.FieldId, Is.EqualTo(42));
        Assert.That(body.SelfInfo.IsOfficial, Is.EqualTo(1));
    }

    [Test]
    public void BuildBattleStart_HasTurnStateZero_AndUsesContextBattleType()
    {
        var env = ScriptedLifecycle.BuildBattleStart(FixtureCtx(), playerViewerId: 1);
        var body = (BattleStartBody)env.Body;
        Assert.That(body.TurnState, Is.EqualTo(0));
        Assert.That(body.BattleType, Is.EqualTo(11));
    }

    [Test]
    public void BuildBattleStart_class_chara_cardMaster_battleType_flow_from_context()
    {
        var ctx = FixtureCtx() with
        {
            ClassId = "7", CharaId = "5000123",
            CardMasterName = "card_master_test_v2",
            BattleType = 42,
        };

        var env = ScriptedLifecycle.BuildBattleStart(ctx, playerViewerId: 1);
        var body = (BattleStartBody)env.Body;

        Assert.That(body.SelfInfo.ClassId, Is.EqualTo("7"));
        Assert.That(body.SelfInfo.CharaId, Is.EqualTo("5000123"));
        Assert.That(body.SelfInfo.CardMasterName, Is.EqualTo("card_master_test_v2"));
        Assert.That(body.BattleType, Is.EqualTo(42));
    }

    [Test]
    public void BuildDeal_HasThreeSelfAndThreeOppoEntries()
    {
        var env = ScriptedLifecycle.BuildDeal();
        var body = (DealBody)env.Body;
        Assert.That(body.Self.Count, Is.EqualTo(3));
        Assert.That(body.Oppo.Count, Is.EqualTo(3));
    }

    [Test]
    public void ComputeHandAfterSwap_NoSwap_ReturnsInitialHand()
    {
        var hand = ScriptedLifecycle.ComputeHandAfterSwap(Array.Empty<long>());
        Assert.That(hand, Is.EqualTo(new long[] { 1, 2, 3 }));
    }

    [Test]
    public void ComputeHandAfterSwap_SwapMiddleCard_ReplacesWithFreshDeckIdx()
    {
        var hand = ScriptedLifecycle.ComputeHandAfterSwap(new long[] { 2 });
        Assert.That(hand, Is.EqualTo(new long[] { 1, 4, 3 }));
    }

    [Test]
    public void ComputeHandAfterSwap_SwapAll_ReplacesAllWithFreshDeckIdxs()
    {
        var hand = ScriptedLifecycle.ComputeHandAfterSwap(new long[] { 1, 2, 3 });
        Assert.That(hand, Is.EqualTo(new long[] { 4, 5, 6 }));
    }

    [Test]
    public void BuildSwapResponse_RendersGivenHandAsPositions()
    {
        var env = ScriptedLifecycle.BuildSwapResponse(new long[] { 1, 4, 3 });
        var body = (SwapResponseBody)env.Body;
        Assert.That(body.Self.Count, Is.EqualTo(3));
        Assert.That(body.Self[1].Idx, Is.EqualTo(4));
    }

    [Test]
    public void BuildReady_IncludesIdxChangeSeedAndSpin_AndUsesGivenHand()
    {
        var env = ScriptedLifecycle.BuildReady(new long[] { 1, 4, 3 });
        var body = (ReadyBody)env.Body;
        Assert.That(body.IdxChangeSeed, Is.EqualTo(771_335_280));
        Assert.That(body.Spin, Is.EqualTo(243));
        Assert.That(body.Self[1].Idx, Is.EqualTo(4));
    }

    [Test]
    public void BuildOpponentTurnStart_HasUriTurnStartAndSpin()
    {
        var env = ScriptedLifecycle.BuildOpponentTurnStart();
        Assert.That(env.Uri, Is.EqualTo(NetworkBattleUri.TurnStart));
        var body = (OpponentTurnStartBody)env.Body;
        Assert.That(body.Spin, Is.EqualTo(100));
    }

    private static MatchContext FixtureCtx(IReadOnlyList<long>? deck = null) => new(
        SelfDeckCardIds: deck ?? Enumerable.Range(1, 30).Select(i => 100_011_010L).ToList(),
        ClassId: "1", CharaId: "1", CardMasterName: "card_master_node_10015",
        CountryCode: "KOR", UserName: "Player", SleeveId: "3000011",
        EmblemId: "701441011", DegreeId: "300003", FieldId: 43, IsOfficial: 0,
        BattleType: 11);
}