using System.Reflection;
using System.Text;
using Microsoft.Win32.TaskScheduler;

if(args.Length != 1)
{
    Console.WriteLine("Usage: Scheduler <timeslot>");
    return;
}

var timeslot = args[0];
if (!TimeSpan.TryParse(timeslot, out var _))
{
    Console.WriteLine("Invalid timeslot format. Use HH:mm");
    return;
}

var dir = new DirectoryInfo(File.ReadAllText("AppSettings.txt"))!;
var builder = new StringBuilder();
builder.AppendLine($"cd {dir.Parent!.FullName}");
builder.AppendLine($"dotnet run -- {timeslot}");
File.WriteAllText("run.bat", builder.ToString());

using (TaskService taskService = new TaskService())
{
    try
    {
        var existingTask = taskService.GetTask("BadmintonBooker");
        if (existingTask != null)
        {
            taskService.RootFolder.DeleteTask("BadmintonBooker", false);
        }
    }
    catch (Exception ex)
    {
        Console.WriteLine($"Error deleting existing task: {ex.Message}");
    }

    TaskDefinition taskDef = taskService.NewTask();
    taskDef.RegistrationInfo.Description = "Scheduled Task with Credentials";
    taskDef.Principal.RunLevel = TaskRunLevel.Highest;

    taskDef.Triggers.Add(new TimeTrigger
    {
        StartBoundary = DateTime.Today.AddDays(1) + TimeSpan.Parse("07:40")
    });
    
    taskDef.Actions.Add(new ExecAction("cmd", $"/c \"{Path.Combine(dir.FullName, "run.bat")}\" > C:\\Output.log 2>&1"));

    var pass = File.ReadAllText("Password.txt");
    taskService.RootFolder.RegisterTaskDefinition(
        "BadmintonBooker",
        taskDef,
        TaskCreation.CreateOrUpdate,
        "Shaamil",
        pass,
        TaskLogonType.Password
    );
}