feat(api): .NET 10 multi-tenant REST API
Full backend implementation: - Multi-tenant cafe/restaurant management (menus, orders, tables, staff) - POS order flow with ZarinPal and Snappfood payment integration - OTP authentication via Kavenegar SMS - QR digital menu with public discover/finder endpoints - Customer loyalty, coupons, CRM - PostgreSQL via EF Core, Redis for caching/sessions - Background jobs, webhook handlers - Full migration history Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
soroush.asadi
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using Meezi.API.Models.Queue;
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using Meezi.Core.Entities;
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using Meezi.Core.Enums;
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using Meezi.Core.Interfaces;
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using Meezi.Infrastructure.Data;
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using Meezi.Infrastructure.Services.Platform;
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using Microsoft.EntityFrameworkCore;
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namespace Meezi.API.Services;
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public interface IQueueService
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{
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Task<QueueBoardDto> GetTodayBoardAsync(string cafeId, string? branchId, CancellationToken ct = default);
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Task<(QueueTicketDto? Ticket, string? ErrorCode, string? Message)> IssuePublicAsync(
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string cafeId,
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PlanTier planTier,
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IssueQueueTicketRequest request,
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CancellationToken ct = default);
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Task<(QueueTicketDto? Ticket, string? Error)> IssueNextAsync(
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string cafeId,
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string? userId,
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IssueQueueTicketRequest request,
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CancellationToken ct = default);
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Task<(QueueTicketDto? Ticket, string? Error)> UpdateStatusAsync(
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string cafeId,
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string ticketId,
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QueueTicketStatus status,
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CancellationToken ct = default);
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}
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public class QueueService : IQueueService
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{
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private readonly AppDbContext _db;
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private readonly IPlatformCatalogService _catalog;
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private readonly ISmsService _sms;
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public QueueService(AppDbContext db, IPlatformCatalogService catalog, ISmsService sms)
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{
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_db = db;
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_catalog = catalog;
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_sms = sms;
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}
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public async Task<(QueueTicketDto? Ticket, string? ErrorCode, string? Message)> IssuePublicAsync(
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string cafeId,
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PlanTier planTier,
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IssueQueueTicketRequest request,
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CancellationToken ct = default)
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{
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if (!await _catalog.IsFeatureEnabledForCafeAsync(cafeId, planTier, "queue", ct))
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return (null, "PLAN_LIMIT_REACHED", "Queue is not available on your plan.");
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var (ticket, error) = await IssueNextAsync(cafeId, null, request, ct);
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if (error is not null)
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return (null, error, error switch
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{
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"BRANCH_NOT_FOUND" => "Branch not found.",
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"ORDER_NOT_FOUND" => "Order not found.",
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_ => "Could not issue ticket."
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});
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return (ticket, null, null);
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}
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public async Task<QueueBoardDto> GetTodayBoardAsync(
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string cafeId,
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string? branchId,
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CancellationToken ct = default)
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{
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var today = IranCalendar.TodayInIran;
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var tickets = await FilterToday(_db.QueueTickets, cafeId, branchId, today)
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.OrderBy(q => q.Number)
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.ToListAsync(ct);
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var dtos = tickets.Select(Map).ToList();
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var waiting = tickets.Where(t => t.Status == QueueTicketStatus.Waiting).ToList();
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var nowServing = tickets
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.Where(t => t.Status == QueueTicketStatus.Called)
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.OrderByDescending(t => t.IssuedAt)
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.Select(t => (int?)t.Number)
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.FirstOrDefault();
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if (nowServing is null && waiting.Count > 0)
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nowServing = waiting[0].Number;
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var lastIssued = tickets.Count > 0 ? tickets.Max(t => t.Number) : 0;
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return new QueueBoardDto(
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today,
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nowServing,
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lastIssued,
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waiting.Count,
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dtos);
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}
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public async Task<(QueueTicketDto? Ticket, string? Error)> IssueNextAsync(
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string cafeId,
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string? userId,
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IssueQueueTicketRequest request,
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CancellationToken ct = default)
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{
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if (!string.IsNullOrEmpty(request.BranchId))
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{
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var branchOk = await _db.Branches.AnyAsync(
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b => b.Id == request.BranchId && b.CafeId == cafeId,
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ct);
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if (!branchOk) return (null, "BRANCH_NOT_FOUND");
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}
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if (!string.IsNullOrEmpty(request.OrderId))
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{
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var orderOk = await _db.Orders.AnyAsync(
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o => o.Id == request.OrderId && o.CafeId == cafeId,
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ct);
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if (!orderOk) return (null, "ORDER_NOT_FOUND");
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}
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var today = IranCalendar.TodayInIran;
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var branchId = string.IsNullOrEmpty(request.BranchId) ? null : request.BranchId;
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var maxNumber = await FilterToday(_db.QueueTickets, cafeId, branchId, today)
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.MaxAsync(q => (int?)q.Number, ct) ?? 0;
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var entity = new QueueTicket
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{
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Id = $"qt_{Guid.NewGuid():N}"[..24],
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CafeId = cafeId,
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BranchId = branchId,
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ServiceDate = today,
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Number = maxNumber + 1,
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CustomerLabel = string.IsNullOrWhiteSpace(request.CustomerLabel)
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? null
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: request.CustomerLabel.Trim(),
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IssuedByUserId = userId,
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OrderId = request.OrderId,
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Status = QueueTicketStatus.Waiting,
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IssuedAt = DateTime.UtcNow
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};
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_db.QueueTickets.Add(entity);
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await _db.SaveChangesAsync(ct);
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return (Map(entity), null);
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}
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public async Task<(QueueTicketDto? Ticket, string? Error)> UpdateStatusAsync(
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string cafeId,
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string ticketId,
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QueueTicketStatus status,
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CancellationToken ct = default)
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{
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var ticket = await _db.QueueTickets.FirstOrDefaultAsync(
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q => q.Id == ticketId && q.CafeId == cafeId,
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ct);
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if (ticket is null) return (null, "NOT_FOUND");
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if (ticket.ServiceDate != IranCalendar.TodayInIran)
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return (null, "TICKET_EXPIRED");
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ticket.Status = status;
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await _db.SaveChangesAsync(ct);
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if (status == QueueTicketStatus.Called && !string.IsNullOrWhiteSpace(ticket.CustomerLabel))
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{
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var cafe = await _db.Cafes.AsNoTracking()
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.Where(c => c.Id == cafeId)
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.Select(c => new { c.Name })
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.FirstOrDefaultAsync(ct);
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if (cafe is not null)
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{
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var phone = ExtractPhone(ticket.CustomerLabel);
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if (phone is not null)
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{
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try
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{
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await _sms.SendMessageAsync(
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phone,
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$"{cafe.Name}: نوبت شما فرا رسید — شماره {ticket.Number}",
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ct);
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}
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catch
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{
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/* SMS optional */
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}
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}
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}
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}
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return (Map(ticket), null);
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}
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private static string? ExtractPhone(string label)
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{
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var digits = new string(label.Where(char.IsDigit).ToArray());
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if (digits.Length >= 10 && digits.StartsWith("09", StringComparison.Ordinal))
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return digits.Length > 11 ? digits[^11..] : digits;
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return null;
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}
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private static IQueryable<QueueTicket> FilterToday(
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IQueryable<QueueTicket> source,
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string cafeId,
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string? branchId,
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DateOnly today)
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{
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var query = source.Where(q => q.CafeId == cafeId && q.ServiceDate == today);
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return string.IsNullOrEmpty(branchId)
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? query
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: query.Where(q => q.BranchId == branchId);
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}
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private static QueueTicketDto Map(QueueTicket q) =>
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new(
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q.Id,
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q.BranchId,
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q.ServiceDate,
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q.Number,
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q.CustomerLabel,
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q.OrderId,
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q.Status,
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q.IssuedAt);
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}
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