using System;
using System.Globalization;
using System.IO;
using System.Text;

namespace HikvisionAttendanceService;

/// <summary>Running totals for the end-of-run business SUMMARY block.</summary>
internal sealed class BizSessionTotals
{
    public int MachinesProcessed;
    public int MachinesConnected;
    public int MachinesFailed;
    public int AttendanceInserted;
    public int AttendanceFailed;
    public int UsersAdded;
    public int UsersUpdated;
    public int UsersRemoved;
    public int TemplatesSaved;
    public int TemplatesFailed;
    public DateTime StartedAt = DateTime.Now;

    public string FormatSummaryBlock()
    {
        var duration = DateTime.Now - StartedAt;
        var sb = new StringBuilder();
        sb.AppendLine("================================================");
        sb.AppendLine();
        sb.AppendLine("SUMMARY");
        sb.AppendLine();
        sb.AppendLine("Machines Processed : " + MachinesProcessed);
        sb.AppendLine("Machines Connected : " + MachinesConnected);
        sb.AppendLine("Machines Failed : " + MachinesFailed);
        sb.AppendLine();
        sb.AppendLine("Attendance Inserted : " + AttendanceInserted);
        sb.AppendLine("Attendance Failed : " + AttendanceFailed);
        sb.AppendLine();
        sb.AppendLine("Users Added : " + UsersAdded);
        sb.AppendLine("Users Updated : " + UsersUpdated);
        sb.AppendLine("Users Removed : " + UsersRemoved);
        sb.AppendLine();
        sb.AppendLine("Templates Saved : " + TemplatesSaved);
        sb.AppendLine("Templates Failed : " + TemplatesFailed);
        sb.AppendLine();
        sb.AppendLine("Duration : " + duration.ToString(@"hh\:mm\:ss", CultureInfo.InvariantCulture));
        sb.AppendLine();
        sb.AppendLine("================================================");
        return sb.ToString();
    }
}

internal enum BizChannel
{
    Attendance,
    UserSync,
    Template,
    DepartmentalSync,
    Unreachable
}

internal static class BizFriendlyReasons
{
    public static string FromStage(ConnectivityFailureStage stage, string? detail = null)
    {
        switch (stage)
        {
            case ConnectivityFailureStage.InvalidIp:
                return "Invalid IP address.";
            case ConnectivityFailureStage.PingFailed:
                return "Device is not responding to network requests.";
            case ConnectivityFailureStage.TcpPortClosed:
                return "TCP Port 8000 is closed.";
            case ConnectivityFailureStage.SdkLoginTimeout:
                return "Network timeout.";
            case ConnectivityFailureStage.InvalidCredentials:
                return "Incorrect username or password.";
            case ConnectivityFailureStage.SdkRejected:
                return "Device refused the SDK connection.";
            default:
                if (!string.IsNullOrWhiteSpace(detail))
                    return detail!.Trim();
                return "Device is powered off or unreachable.";
        }
    }

    public static string FormatTime(DateTime dt)
    {
        if (dt.Kind == DateTimeKind.Utc)
            dt = dt.ToLocalTime();
        return dt.ToString("M/d/yyyy h:mm:ss tt", CultureInfo.InvariantCulture);
    }
}