acdream/tests/AcDream.UI.Abstractions.Tests/Panels/Chat/ChatPanelInputTests.cs

using AcDream.Core.Chat;
using AcDream.UI.Abstractions.Panels.Chat;

namespace AcDream.UI.Abstractions.Tests.Panels.Chat;

/// <summary>
/// Phase I.4: when the user submits text via the chat input field, the
/// panel must publish the appropriate typed intent to the command bus.
/// We exercise the full Render path with the <see cref="FakePanelRenderer"/>
/// pre-loading a "submitted" string and a recording bus capturing the
/// resulting command.
/// </summary>
public sealed class ChatPanelInputTests
{
    private sealed class RecordingBus : ICommandBus
    {
        public List<object> Published { get; } = new();
        public void Publish<T>(T command) where T : notnull => Published.Add(command);
    }

    [Fact]
    public void Submit_HelpCommand_RendersLocalHelpAndDoesNotPublish()
    {
        // Phase J follow-up: client-side commands (/help, /?, /h) are
        // intercepted before the parser. They render a local cheat-sheet
        // via ChatLog.OnSystemMessage and do NOT round-trip the server
        // — that's what prevented the "Unknown command: help" duplicate
        // ACE was firing back.
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = "/help",
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        Assert.Empty(bus.Published);
        var entry = Assert.Single(log.Snapshot());
        Assert.Equal(ChatKind.System, entry.Kind);
        // Help text mentions / and @ equivalence and points at @acehelp
        // for the server's full command list.
        Assert.Contains("/tell", entry.Text);
        Assert.Contains("@acehelp", entry.Text);
    }

    [Theory]
    [InlineData("/?")]
    [InlineData("/h")]
    [InlineData("/HELP")]
    public void Submit_HelpAliases_AlsoRenderLocalHelp(string raw)
    {
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = raw,
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        Assert.Empty(bus.Published);
        Assert.Single(log.Snapshot());
    }

    [Fact]
    public void Submit_FramerateCommand_PublishesTypedClientCommand()
    {
        var log = new ChatLog();
        var vm  = new ChatVM(log) { FpsProvider = () => 60f };
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = "/framerate",
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        var command = Assert.IsType<ExecuteClientCommandCmd>(Assert.Single(bus.Published));
        Assert.Equal(ClientCommandId.ToggleFrameRate, command.Command);
        Assert.Empty(log.Snapshot());
    }

    [Fact]
    public void Submit_LocCommand_PublishesTypedClientCommand()
    {
        var log = new ChatLog();
        var vm  = new ChatVM(log)
        {
            PositionProvider = () => new System.Numerics.Vector3(10f, 20f, 30f),
        };
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = "@loc",
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        var command = Assert.IsType<ExecuteClientCommandCmd>(Assert.Single(bus.Published));
        Assert.Equal(ClientCommandId.ShowLocation, command.Command);
        Assert.Empty(log.Snapshot());
    }

    [Theory]
    [InlineData("/foo",                 "@foo")]
    [InlineData("/genio public",        "@genio public")]
    public void Submit_UnknownSlashCommand_RoutesToExplicitServerCommand(string raw, string expectedText)
    {
        // Phase J Tier 4 held: /-prefixed text is still NEVER broadcast
        // as plain speech. Retail treats / and @ as equivalent command
        // prefixes, so unknown verbs now go to the SERVER as @commands
        // (ACE's GameActionTalk intercepts @ on the Say action and
        // answers "Unknown command: x" itself) instead of a local guess.
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = raw,
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        var sendCmd = Assert.IsType<SendServerCommandCmd>(Assert.Single(bus.Published));
        Assert.Equal(expectedText, sendCmd.Text);
        Assert.Empty(log.Snapshot());   // no local "Unknown command" guess
    }

    [Theory]
    [InlineData("/lifestone")]
    [InlineData("/lif")]
    [InlineData("/ls")]
    [InlineData("@LS")]
    public void Submit_LifestoneAlias_PublishesTypedClientCommand(string raw)
    {
        var vm = new ChatVM(new ChatLog());
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = raw,
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        var command = Assert.IsType<ExecuteClientCommandCmd>(Assert.Single(bus.Published));
        Assert.Equal(ClientCommandId.LifestoneRecall, command.Command);
    }

    [Theory]
    [InlineData("/")]
    [InlineData("//shrug")]
    public void Submit_CommandShapedWithoutVerb_ShowsUnknownAndDoesNotPublish(string raw)
    {
        // Command-shaped but no letter verb: refused locally — this is
        // the remaining Tier-4 guard (never broadcast /-text as speech,
        // and don't put junk @-rewrites on the wire either).
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = raw,
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        Assert.Empty(bus.Published);
        var entry = Assert.Single(log.Snapshot());
        Assert.Equal(ChatKind.System, entry.Kind);
        Assert.Contains("Unknown command", entry.Text);
        Assert.Contains("/help", entry.Text);
    }

    [Fact]
    public void Submit_AtAcehelp_PublishesExplicitServerCommand()
    {
        // Unknown @-verb falls through to the default channel with the
        // literal "@acehelp" text intact so ACE's CommandManager
        // intercepts it server-side. The explicit server-command record keeps
        // it distinct from ordinary Say text.
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = "@acehelp",
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        var sendCmd = Assert.IsType<SendServerCommandCmd>(Assert.Single(bus.Published));
        Assert.Equal("@acehelp", sendCmd.Text);
    }

    [Fact]
    public void Submit_ClearCommand_PublishesTypedClientCommand()
    {
        var log = new ChatLog();
        log.OnSystemMessage("seed line", chatType: 0);
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = "/clear",
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        var command = Assert.IsType<ExecuteClientCommandCmd>(Assert.Single(bus.Published));
        Assert.Equal(ClientCommandId.ClearChat, command.Command);
        Assert.Single(log.Snapshot());
    }

    [Fact]
    public void Submit_PlainText_PublishesSayCommand()
    {
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = "hello world",
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        var cmd = Assert.Single(bus.Published);
        var sendCmd = Assert.IsType<SendChatCmd>(cmd);
        Assert.Equal(ChatChannelKind.Say, sendCmd.Channel);
        Assert.Null(sendCmd.TargetName);
        Assert.Equal("hello world", sendCmd.Text);
    }

    [Fact]
    public void Submit_TellSlashCommand_PublishesTellCommand()
    {
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = "/t Bestie ping",
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        var sendCmd = Assert.IsType<SendChatCmd>(Assert.Single(bus.Published));
        Assert.Equal(ChatChannelKind.Tell, sendCmd.Channel);
        Assert.Equal("Bestie", sendCmd.TargetName);
        Assert.Equal("ping", sendCmd.Text);
    }

    [Fact]
    public void Submit_ReplySlashCommand_UsesLastIncomingTellSender()
    {
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        log.OnTellReceived("Bestie", "ping", senderGuid: 0x5000_00AAu, logTextType: 0x03u);

        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = "/r back at you",
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        var sendCmd = Assert.IsType<SendChatCmd>(Assert.Single(bus.Published));
        Assert.Equal(ChatChannelKind.Tell, sendCmd.Channel);
        Assert.Equal("Bestie", sendCmd.TargetName);
        Assert.Equal("back at you", sendCmd.Text);
    }

    [Fact]
    public void Submit_EmptyOrWhitespace_PublishesNothing()
    {
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = "   ",
            InputTextSubmitNextBufferAfter = "",
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        Assert.Empty(bus.Published);
    }

    [Fact]
    public void NoSubmit_PublishesNothing()
    {
        // Most frames: user is typing or idle; submitted == null.
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = null,
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        Assert.Empty(bus.Published);
    }

    [Fact]
    public void Render_AlwaysCallsInputTextSubmit_ToShowTheField()
    {
        var log = new ChatLog();
        var vm  = new ChatVM(log);
        var panel = new ChatPanel(vm);
        var bus = new RecordingBus();
        var renderer = new FakePanelRenderer
        {
            InputTextSubmitNextSubmitted = null,
        };

        panel.Render(new PanelContext(0.016f, bus), renderer);

        Assert.Contains(renderer.Calls, c => c.Method == "InputTextSubmit");
    }
}