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>
2026-05-27 21:33:48 +03:30
parent 03376b3ea1
commit ef15fd6247
472 changed files with 120358 additions and 0 deletions
@@ -0,0 +1,90 @@
+using Meezi.Core.Constants;
+using Meezi.Core.Enums;
+using StackExchange.Redis;
+
+namespace Meezi.API.Services;
+
+public record TerminalInfoDto(string TerminalId, DateTime? LastSeenUtc);
+
+public interface ITerminalRegistryService
+{
+    Task<(bool Allowed, string? ErrorCode, string? Message)> RegisterAsync(
+        string cafeId,
+        PlanTier tier,
+        string terminalId,
+        CancellationToken cancellationToken = default);
+
+    Task<IReadOnlyList<TerminalInfoDto>> ListAsync(string cafeId, CancellationToken cancellationToken = default);
+
+    Task RevokeAsync(string cafeId, string terminalId, CancellationToken cancellationToken = default);
+}
+
+public class TerminalRegistryService : ITerminalRegistryService
+{
+    private static readonly TimeSpan TerminalTtl = TimeSpan.FromDays(90);
+    private readonly IConnectionMultiplexer _redis;
+
+    public TerminalRegistryService(IConnectionMultiplexer redis) => _redis = redis;
+
+    public async Task<(bool Allowed, string? ErrorCode, string? Message)> RegisterAsync(
+        string cafeId,
+        PlanTier tier,
+        string terminalId,
+        CancellationToken cancellationToken = default)
+    {
+        if (string.IsNullOrWhiteSpace(terminalId))
+            return (false, "TERMINAL_ID_REQUIRED", "Terminal id is required.");
+
+        terminalId = terminalId.Trim();
+        var db = _redis.GetDatabase();
+        var setKey = $"terminals:{cafeId}";
+        var max = PlanLimits.MaxTerminals(tier);
+
+        if (max == int.MaxValue)
+        {
+            await db.SetAddAsync(setKey, terminalId);
+            await db.KeyExpireAsync(setKey, TerminalTtl);
+            return (true, null, null);
+        }
+
+        var members = await db.SetMembersAsync(setKey);
+        var known = members.Select(m => m.ToString()).ToHashSet(StringComparer.Ordinal);
+        if (known.Contains(terminalId))
+        {
+            await db.KeyExpireAsync(setKey, TerminalTtl);
+            return (true, null, null);
+        }
+
+        if (known.Count >= max)
+            return (false, "PLAN_LIMIT_REACHED", "Terminal limit reached for your plan. Please upgrade.");
+
+        await db.SetAddAsync(setKey, terminalId);
+        await db.KeyExpireAsync(setKey, TerminalTtl);
+        return (true, null, null);
+    }
+
+    public async Task<IReadOnlyList<TerminalInfoDto>> ListAsync(
+        string cafeId,
+        CancellationToken cancellationToken = default)
+    {
+        var db = _redis.GetDatabase();
+        var setKey = $"terminals:{cafeId}";
+        var members = await db.SetMembersAsync(setKey);
+        return members
+            .Select(m => m.ToString())
+            .Where(id => !string.IsNullOrEmpty(id))
+            .Select(id => new TerminalInfoDto(id!, null))
+            .OrderBy(t => t.TerminalId)
+            .ToList();
+    }
+
+    public async Task RevokeAsync(
+        string cafeId,
+        string terminalId,
+        CancellationToken cancellationToken = default)
+    {
+        if (string.IsNullOrWhiteSpace(terminalId)) return;
+        var db = _redis.GetDatabase();
+        await db.SetRemoveAsync($"terminals:{cafeId}", terminalId.Trim());
+    }
+}