namespace RpgRoller.Tests;

public sealed class ServiceRolemasterRollTests
{
    [Fact]
    public void RollSkill_RolemasterStandardMultiDie_ComputesTotalAndTagsDice()
    {
        using var harness = ServiceTestSupport.CreateHarness(7, 10);
        var service = harness.Service;

        service.Register("gm-init", "Password123", "GM");
        var session = ServiceTestSupport.GetValue(service.Login("gm-init", "Password123")).SessionToken;
        var campaign = ServiceTestSupport.GetValue(service.CreateCampaign(session, "Rolemaster", "rolemaster"));
        var character = ServiceTestSupport.GetValue(service.CreateCharacter(session, "Hero", campaign.Id));
        var skill = ServiceTestSupport.GetValue(service.CreateSkill(session, character.Id, "Healing", "2d10+48", 0, false));

        var roll = ServiceTestSupport.GetValue(service.RollSkill(session, skill.Id, "public"));
        var logPage = ServiceTestSupport.GetValue(service.GetCampaignLogPage(session, campaign.Id, limit: 5));

        Assert.Equal(65, roll.Result);
        Assert.Equal("7+10+48=65", roll.Breakdown);
        Assert.Equal("7 + 10 | rolemaster", Assert.Single(logPage.Entries).SummaryText);
        Assert.Collection(
            roll.Dice,
            die =>
            {
                Assert.Equal(7, die.Roll);
                Assert.Equal(1, die.Sequence);
                Assert.Equal(RollDieKinds.RolemasterStandard, die.Kind);
                Assert.Equal(7, die.SignedContribution);
            },
            die =>
            {
                Assert.Equal(10, die.Roll);
                Assert.Equal(2, die.Sequence);
                Assert.Equal(RollDieKinds.RolemasterStandard, die.Kind);
                Assert.Equal(10, die.SignedContribution);
            });
    }

    [Fact]
    public void RollSkill_RolemasterStandardSingleDie_ComputesTotalAndTagsDice()
    {
        using var harness = ServiceTestSupport.CreateHarness(73);
        var service = harness.Service;

        service.Register("gm-percentile", "Password123", "GM");
        var session = ServiceTestSupport.GetValue(service.Login("gm-percentile", "Password123")).SessionToken;
        var campaign = ServiceTestSupport.GetValue(service.CreateCampaign(session, "Rolemaster", "rolemaster"));
        var character = ServiceTestSupport.GetValue(service.CreateCharacter(session, "Hero", campaign.Id));
        var skill = ServiceTestSupport.GetValue(service.CreateSkill(session, character.Id, "Perception", "d100-15", 0, false));

        var roll = ServiceTestSupport.GetValue(service.RollSkill(session, skill.Id, "public"));
        var logPage = ServiceTestSupport.GetValue(service.GetCampaignLogPage(session, campaign.Id, limit: 5));

        Assert.Equal(58, roll.Result);
        Assert.Equal("73-15=58", roll.Breakdown);
        Assert.Equal("73 | rolemaster", Assert.Single(logPage.Entries).SummaryText);

        var die = Assert.Single(roll.Dice);
        Assert.Equal(73, die.Roll);
        Assert.Equal(1, die.Sequence);
        Assert.Equal(RollDieKinds.RolemasterStandard, die.Kind);
        Assert.Equal(73, die.SignedContribution);
    }

    [Fact]
    public void RollSkill_RolemasterOpenEndedHigh_RecursesAndBuildsReadableLogSummary()
    {
        using var harness = ServiceTestSupport.CreateHarness(97, 96, 45);
        var service = harness.Service;

        service.Register("gm-open-high", "Password123", "GM");
        var session = ServiceTestSupport.GetValue(service.Login("gm-open-high", "Password123")).SessionToken;
        var campaign = ServiceTestSupport.GetValue(service.CreateCampaign(session, "Rolemaster", "rolemaster"));
        var character = ServiceTestSupport.GetValue(service.CreateCharacter(session, "Hero", campaign.Id));
        var skill = ServiceTestSupport.GetValue(service.CreateSkill(session, character.Id, "Awareness", "d100!+85", 0, false, null, 5));

        var roll = ServiceTestSupport.GetValue(service.RollSkill(session, skill.Id, "public"));
        var detail = ServiceTestSupport.GetValue(service.GetRollDetail(session, roll.RollId));
        var logPage = ServiceTestSupport.GetValue(service.GetCampaignLogPage(session, campaign.Id, limit: 5));

        Assert.Equal(323, roll.Result);
        Assert.Equal("97+96+45+85=323", roll.Breakdown);
        Assert.Equal("97 + 96 + 45 | open-ended high", Assert.Single(logPage.Entries).SummaryText);
        Assert.Equal(roll.Breakdown, detail.Breakdown);
        Assert.Collection(
            detail.Dice,
            die =>
            {
                Assert.Equal(97, die.Roll);
                Assert.Equal(1, die.Sequence);
                Assert.Equal(RollDieKinds.RolemasterOpenEndedInitial, die.Kind);
                Assert.Equal(97, die.SignedContribution);
                Assert.False(die.Added);
            },
            die =>
            {
                Assert.Equal(96, die.Roll);
                Assert.Equal(2, die.Sequence);
                Assert.Equal(RollDieKinds.RolemasterOpenEndedHigh, die.Kind);
                Assert.Equal(96, die.SignedContribution);
                Assert.True(die.Added);
            },
            die =>
            {
                Assert.Equal(45, die.Roll);
                Assert.Equal(3, die.Sequence);
                Assert.Equal(RollDieKinds.RolemasterOpenEndedHigh, die.Kind);
                Assert.Equal(45, die.SignedContribution);
                Assert.True(die.Added);
            });
    }

    [Fact]
    public void RollSkill_RolemasterOpenEndedLow_SubtractsRecursiveHighChain()
    {
        using var harness = ServiceTestSupport.CreateHarness(5, 97, 100, 12);
        var service = harness.Service;

        service.Register("gm-open-low", "Password123", "GM");
        var session = ServiceTestSupport.GetValue(service.Login("gm-open-low", "Password123")).SessionToken;
        var campaign = ServiceTestSupport.GetValue(service.CreateCampaign(session, "Rolemaster", "rolemaster"));
        var character = ServiceTestSupport.GetValue(service.CreateCharacter(session, "Hero", campaign.Id));
        var skill = ServiceTestSupport.GetValue(service.CreateSkill(session, character.Id, "Awareness", "d100!+85", 0, false, null, 5));

        var roll = ServiceTestSupport.GetValue(service.RollSkill(session, skill.Id, "public"));
        var logPage = ServiceTestSupport.GetValue(service.GetCampaignLogPage(session, campaign.Id, limit: 5));

        Assert.Equal(-124, roll.Result);
        Assert.Equal("(05) -97 -100 -12 +85 = -124", roll.Breakdown);
        Assert.Equal("(05) -97 -100 -12 | open-ended low", Assert.Single(logPage.Entries).SummaryText);
        Assert.Collection(
            roll.Dice,
            die =>
            {
                Assert.Equal(5, die.Roll);
                Assert.Equal(1, die.Sequence);
                Assert.Equal(RollDieKinds.RolemasterOpenEndedInitial, die.Kind);
                Assert.Null(die.SignedContribution);
            },
            die =>
            {
                Assert.Equal(97, die.Roll);
                Assert.Equal(2, die.Sequence);
                Assert.Equal(RollDieKinds.RolemasterOpenEndedLowSubtract, die.Kind);
                Assert.Equal(-97, die.SignedContribution);
            },
            die =>
            {
                Assert.Equal(100, die.Roll);
                Assert.Equal(3, die.Sequence);
                Assert.Equal(RollDieKinds.RolemasterOpenEndedLowSubtract, die.Kind);
                Assert.Equal(-100, die.SignedContribution);
            },
            die =>
            {
                Assert.Equal(12, die.Roll);
                Assert.Equal(4, die.Sequence);
                Assert.Equal(RollDieKinds.RolemasterOpenEndedLowSubtract, die.Kind);
                Assert.Equal(-12, die.SignedContribution);
            });
    }
}