using ClaudeDo.Worker.Planning;

namespace ClaudeDo.Worker.Tests.Planning;

public sealed class WindowsTerminalPlanningLauncherTests
{
    private static PlanningSessionStartContext MakeStartCtx(string? wd = null)
    {
        var workingDir = wd ?? Path.GetTempPath();
        var dir = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
        Directory.CreateDirectory(dir);
        return new PlanningSessionStartContext(
            ParentTaskId: "task-1",
            WorkingDir: workingDir,
            Files: new PlanningSessionFiles(
                SessionDirectory: dir,
                McpConfigPath: Path.Combine(dir, "mcp.json"),
                SystemPromptPath: Path.Combine(dir, "system-prompt.md"),
                InitialPromptPath: Path.Combine(dir, "initial-prompt.txt")));
    }

    [Fact]
    public async Task LaunchStartAsync_WorkingDirMissing_Throws()
    {
        var ctx = MakeStartCtx(wd: Path.Combine(Path.GetTempPath(), "nonexistent_" + Guid.NewGuid()));
        var sut = new WindowsTerminalPlanningLauncher(wtPath: "wt", claudePath: "claude");
        var ex = await Assert.ThrowsAsync<PlanningLaunchException>(() =>
            sut.LaunchStartAsync(ctx, CancellationToken.None));
        Assert.Contains("Working directory", ex.Message);
    }

    [Fact]
    public async Task LaunchStartAsync_WtMissing_Throws()
    {
        var ctx = MakeStartCtx();
        File.WriteAllText(ctx.Files.McpConfigPath, "{}");
        File.WriteAllText(ctx.Files.SystemPromptPath, "sp");
        File.WriteAllText(ctx.Files.InitialPromptPath, "ip");

        var sut = new WindowsTerminalPlanningLauncher(
            wtPath: "C:/no/such/wt.exe",
            claudePath: "claude");
        var ex = await Assert.ThrowsAsync<PlanningLaunchException>(() =>
            sut.LaunchStartAsync(ctx, CancellationToken.None));
        Assert.Contains("Windows Terminal", ex.Message);
    }
}