using System.Text.Json.Serialization;

namespace KronaStaffTerminal.Models;

public sealed class EmployeeRecord
{
    public string Id { get; set; } = UlidGenerator.New();
    public string PersonnelNumber { get; set; } = "";
    public string DisplayName { get; set; } = "";
    public string Position { get; set; } = "";
    public string Gender { get; set; } = "";
    public bool IsAdministrator { get; set; }
    public List<FingerprintRecord> Fingerprints { get; set; } = [];

    // Legacy single-fingerprint fields are kept for one-way migration of existing encrypted state.
    public int FingerprintId { get; set; }
    public string? FingerprintTemplate { get; set; }

    [JsonIgnore]
    public bool HasFingerprint => Fingerprints.Count > 0;

    [JsonIgnore]
    public string FingerprintStatus => Fingerprints.Count switch
    {
        0 => "Отпечатков нет",
        1 => "1 отпечаток",
        2 or 3 or 4 => $"{Fingerprints.Count} отпечатка",
        _ => $"{Fingerprints.Count} отпечатков"
    };

    [JsonIgnore]
    public string AccessStatus => IsAdministrator ? "Администратор" : "Сотрудник";

    [JsonIgnore]
    public string GenderDisplay => string.IsNullOrWhiteSpace(Gender) ? "—" : Gender;
}

public sealed class FingerprintRecord
{
    public int Id { get; set; }
    public string Template { get; set; } = "";
    public string Label { get; set; } = "";
}

public sealed class AttendanceRecord
{
    public string Id { get; set; } = UlidGenerator.New();
    public string EmployeeId { get; set; } = "";
    public string EmployeeName { get; set; } = "";
    public DateTimeOffset OccurredAtUtc { get; set; }
    public int ReaderIndex { get; set; }
    public string EventType { get; set; } = "Приход";
    public bool NotificationDelivered { get; set; }
    public string? NotificationError { get; set; }

    [JsonIgnore]
    public string LocalTime => OccurredAtUtc.ToLocalTime().ToString("dd.MM.yyyy HH:mm:ss");

    [JsonIgnore]
    public string DeliveryStatus => NotificationDelivered ? "Отправлено" : string.IsNullOrWhiteSpace(NotificationError) ? "Не настроено" : "Ошибка отправки";
}

public sealed class TerminalSettings
{
    public int ReaderIndex { get; set; }
    public bool StartWithWindows { get; set; }
    public string AdminPinSalt { get; set; } = "";
    public string AdminPinHash { get; set; } = "";
    public int AdminPinIterations { get; set; } = 120_000;
    public int DuplicateScanGuardSeconds { get; set; } = 120;
    public int MaximumShiftHours { get; set; } = 20;
    public bool ShowEmployeeNamesOnTerminal { get; set; }
    public bool TelegramEnabled { get; set; }
    public string TelegramBotToken { get; set; } = "";
    public string TelegramChatId { get; set; } = "";
    public bool MaxEnabled { get; set; }
    public string MaxBotToken { get; set; } = "";
    public string MaxChatId { get; set; } = "";
}

public sealed class TerminalState
{
    public List<EmployeeRecord> Employees { get; set; } = [];
    public List<AttendanceRecord> Attendance { get; set; } = [];
    public TerminalSettings Settings { get; set; } = new();
}