// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using Aspire.Cli.EndToEnd.Tests.Helpers;
using Aspire.Cli.Tests.Utils;
using Hex1b;
using Hex1b.Automation;
using Xunit;
 
namespace Aspire.Cli.EndToEnd.Tests;
 
/// <summary>
/// End-to-end tests for the aspire logs command.
/// Each test class runs as a separate CI job for parallelization.
/// </summary>
public sealed class LogsCommandTests(ITestOutputHelper output)
{
    [Fact]
    public async Task LogsCommandShowsResourceLogs()
    {
        var workspace = TemporaryWorkspace.Create(output);
 
        var prNumber = CliE2ETestHelpers.GetRequiredPrNumber();
        var commitSha = CliE2ETestHelpers.GetRequiredCommitSha();
        var isCI = CliE2ETestHelpers.IsRunningInCI;
        var recordingPath = CliE2ETestHelpers.GetTestResultsRecordingPath(nameof(LogsCommandShowsResourceLogs));
 
        var builder = Hex1bTerminal.CreateBuilder()
            .WithHeadless()
            .WithDimensions(160, 48)
            .WithAsciinemaRecording(recordingPath)
            .WithPtyProcess("/bin/bash", ["--norc"]);
 
        using var terminal = builder.Build();
 
        var pendingRun = terminal.RunAsync(TestContext.Current.CancellationToken);
 
        // Pattern searchers for aspire new prompts
        var waitingForTemplateSelectionPrompt = new CellPatternSearcher()
            .Find("> Starter App");
 
        var waitingForProjectNamePrompt = new CellPatternSearcher()
            .Find($"Enter the project name ({workspace.WorkspaceRoot.Name}): ");
 
        var waitingForOutputPathPrompt = new CellPatternSearcher()
            .Find($"Enter the output path: (./AspireLogsTestApp): ");
 
        var waitingForUrlsPrompt = new CellPatternSearcher()
            .Find($"Use *.dev.localhost URLs");
 
        var waitingForRedisPrompt = new CellPatternSearcher()
            .Find($"Use Redis Cache");
 
        var waitingForTestPrompt = new CellPatternSearcher()
            .Find($"Do you want to create a test project?");
 
        // Pattern searchers for start/stop commands
        var waitForAppHostStartedSuccessfully = new CellPatternSearcher()
            .Find("AppHost started successfully.");
 
        var waitForAppHostStoppedSuccessfully = new CellPatternSearcher()
            .Find("AppHost stopped successfully.");
 
        // Pattern for verifying log output was written to file
        var waitForApiserviceLogs = new CellPatternSearcher()
            .Find("[apiservice]");
 
        // Pattern for verifying JSON log output was written to file
        var waitForLogsJsonOutput = new CellPatternSearcher()
            .Find("\"resourceName\":");
 
        // Pattern for aspire logs when no AppHosts running
        var waitForNoRunningAppHosts = new CellPatternSearcher()
            .Find("No running AppHost found");
 
        var counter = new SequenceCounter();
        var sequenceBuilder = new Hex1bTerminalInputSequenceBuilder();
 
        sequenceBuilder.PrepareEnvironment(workspace, counter);
 
        if (isCI)
        {
            sequenceBuilder.InstallAspireCliFromPullRequest(prNumber, counter);
            sequenceBuilder.SourceAspireCliEnvironment(counter);
            sequenceBuilder.VerifyAspireCliVersion(commitSha, counter);
        }
 
        // Create a new project using aspire new
        sequenceBuilder.Type("aspire new")
            .Enter()
            .WaitUntil(s => waitingForTemplateSelectionPrompt.Search(s).Count > 0, TimeSpan.FromSeconds(30))
            .Enter() // select first template (Starter App)
            .WaitUntil(s => waitingForProjectNamePrompt.Search(s).Count > 0, TimeSpan.FromSeconds(10))
            .Type("AspireLogsTestApp")
            .Enter()
            .WaitUntil(s => waitingForOutputPathPrompt.Search(s).Count > 0, TimeSpan.FromSeconds(10))
            .Enter()
            .WaitUntil(s => waitingForUrlsPrompt.Search(s).Count > 0, TimeSpan.FromSeconds(10))
            .Enter()
            .WaitUntil(s => waitingForRedisPrompt.Search(s).Count > 0, TimeSpan.FromSeconds(10))
            .Enter()
            .WaitUntil(s => waitingForTestPrompt.Search(s).Count > 0, TimeSpan.FromSeconds(10))
            .Enter()
            .WaitForSuccessPrompt(counter);
 
        // Navigate to the AppHost directory
        sequenceBuilder.Type("cd AspireLogsTestApp/AspireLogsTestApp.AppHost")
            .Enter()
            .WaitForSuccessPrompt(counter);
 
        // Start the AppHost in the background using aspire run --detach
        sequenceBuilder.Type("aspire run --detach")
            .Enter()
            .WaitUntil(s => waitForAppHostStartedSuccessfully.Search(s).Count > 0, TimeSpan.FromMinutes(3))
            .WaitForSuccessPrompt(counter);
 
        // Wait for resources to fully start and produce logs
        sequenceBuilder.Type("sleep 15")
            .Enter()
            .WaitForSuccessPrompt(counter);
 
        // Test aspire logs for a specific resource (apiservice) - non-follow mode gets logs and exits
        sequenceBuilder.Type("aspire logs apiservice > logs.txt 2>&1")
            .Enter()
            .WaitForSuccessPrompt(counter);
 
        // Debug: show file size and first few lines
        sequenceBuilder.Type("wc -l logs.txt && head -5 logs.txt")
            .Enter()
            .WaitForSuccessPrompt(counter);
 
        // Verify the log file contains expected output
        sequenceBuilder.Type("cat logs.txt | grep -E '\\[apiservice\\]' | head -3")
            .Enter()
            .WaitUntil(s => waitForApiserviceLogs.Search(s).Count > 0, TimeSpan.FromSeconds(10))
            .WaitForSuccessPrompt(counter);
 
        // Test aspire logs --format json for a specific resource
        sequenceBuilder.Type("aspire logs apiservice --format json > logs_json.txt 2>&1")
            .Enter()
            .WaitForSuccessPrompt(counter);
 
        // Verify the JSON log file contains expected output
        sequenceBuilder.Type("cat logs_json.txt | grep '\"resourceName\"' | head -3")
            .Enter()
            .WaitUntil(s => waitForLogsJsonOutput.Search(s).Count > 0, TimeSpan.FromSeconds(10))
            .WaitForSuccessPrompt(counter);
 
        // Stop the AppHost using aspire stop
        sequenceBuilder.Type("aspire stop")
            .Enter()
            .WaitUntil(s => waitForAppHostStoppedSuccessfully.Search(s).Count > 0, TimeSpan.FromMinutes(1))
            .WaitForSuccessPrompt(counter);
 
        // Exit the shell
        sequenceBuilder.Type("exit")
            .Enter();
 
        var sequence = sequenceBuilder.Build();
 
        await sequence.ApplyAsync(terminal, TestContext.Current.CancellationToken);
 
        await pendingRun;
    }
}