feature: Ward Gateway Service (Local-First Clinical Path)

2026-06-23 16:45:38 +08:00
parent d8e142fffe
commit 1bf8359097
100 changed files with 5474 additions and 4 deletions
@@ -0,0 +1,141 @@
+
+using System.Text;
+using System.Text.Json.Serialization;
+using FluentValidation;
+using FluentValidation.AspNetCore;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.IdentityModel.Tokens;
+using Prometheus;
+using Serilog;
+using StackExchange.Redis;
+
+try
+{
+    var builder = WebApplication.CreateBuilder(args);
+
+    if (!builder.Environment.IsEnvironment("Testing"))
+        builder.Host.UseSerilog((ctx, _, cfg) => cfg.ReadFrom.Configuration(ctx.Configuration));
+
+    builder.Services.AddDbContext<GatewayDbContext>(opts =>
+        opts.UseNpgsql(builder.Configuration.GetConnectionString("GatewayDb")));
+
+    builder.Services.AddSingleton<IConnectionMultiplexer>(sp =>
+        ConnectionMultiplexer.Connect(builder.Configuration["Redis:ConnectionString"]!));
+
+    builder.Services.Configure<GatewayOptions>(builder.Configuration.GetSection(GatewayOptions.Section));
+    builder.Services.Configure<CentralApiOptions>(builder.Configuration.GetSection(CentralApiOptions.Section));
+    builder.Services.Configure<RabbitMqOptions>(builder.Configuration.GetSection(RabbitMqOptions.Section));
+    builder.Services.Configure<SuppressionOptions>(builder.Configuration.GetSection(SuppressionOptions.SectionName));
+
+    var jwt = builder.Configuration.GetSection("Jwt");
+    builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
+        .AddJwtBearer(o =>
+        {
+            o.TokenValidationParameters = new TokenValidationParameters
+            {
+                ValidateIssuer = true,
+                ValidateAudience = true,
+                ValidateLifetime = true,
+                ValidateIssuerSigningKey = true,
+                ValidIssuer = jwt["Issuer"],
+                ValidAudience = jwt["Audience"],
+                IssuerSigningKey = new SymmetricSecurityKey(
+                    Encoding.UTF8.GetBytes(jwt["SigningKey"]!))
+            };
+        });
+    builder.Services.AddAuthorization();
+
+    builder.Services.AddFluentValidationAutoValidation();
+    builder.Services.AddValidatorsFromAssemblyContaining<Program>();
+
+    builder.Services.AddHttpClient("central");
+
+    builder.Services.AddSingleton<CentralReachabilityService>();
+    builder.Services.AddHostedService(sp => sp.GetRequiredService<CentralReachabilityService>());
+    builder.Services.AddHostedService<GatewayHeartbeatService>();
+    builder.Services.AddHostedService<EncounterReplicaSyncService>();
+    builder.Services.AddHostedService<SyncUploaderService>();
+    builder.Services.AddHostedService<ThresholdCacheLoader>();
+
+    builder.Services.AddSingleton<RabbitMqTopologyProvisioner>();
+    builder.Services.AddHostedService(sp => sp.GetRequiredService<RabbitMqTopologyProvisioner>());
+    builder.Services.AddSingleton<LocalPagingPublisher>();
+    builder.Services.AddHostedService<LocalPagingWorkerService>();
+    builder.Services.AddHostedService<LocalEscalationWorkerService>();
+    builder.Services.AddScoped<LocalWarningEvaluator>();
+    builder.Services.AddScoped<ILocalObservationService, LocalObservationService>();
+    builder.Services.AddScoped<IObservationQueryService, ObservationQueryService>();
+    builder.Services.AddScoped<ILocalAlertService, LocalAlertService>();
+    builder.Services.AddScoped<IEncounterReadService, EncounterReadService>();
+
+    // Add services to the container.
+
+    builder.Services.AddHealthChecks()
+        .AddDbContextCheck<GatewayDbContext>("postgresql", tags: ["ready"])
+        .AddCheck<RedisHealthCheck>("redis", tags: ["ready"])
+        .AddCheck<RabbitMqHealthCheck>("rabbitmq", tags: ["ready"])
+        .AddCheck<EncounterReplicaReadyCheck>("encounter_replica", tags: ["ready"]);
+
+    builder.Services.AddControllers()
+    .AddJsonOptions(o => o.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter()));
+
+    builder.Services.AddCors(o => o.AddPolicy("Dashboard", p =>
+        p.WithOrigins("http://localhost:5173").AllowAnyHeader().AllowAnyMethod()));
+    // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+    builder.Services.AddEndpointsApiExplorer();
+    builder.Services.AddSwaggerGen();
+
+    var app = builder.Build();
+
+    app.UseMiddleware<ExceptionHandlerMiddleware>();
+
+    // Configure the HTTP request pipeline.
+    if (app.Environment.IsDevelopment())
+    {
+        app.UseSwagger();
+        app.UseSwaggerUI();
+    }
+
+    if (!app.Environment.IsEnvironment("Testing"))
+    {
+        app.UseSerilogRequestLogging();
+    }
+
+    app.UseCors("Dashboard");
+    app.UseAuthentication();
+    app.UseAuthorization();
+    app.UseHttpMetrics();
+    app.MapControllers();
+    app.MapMetrics("/metrics");
+
+    app.MapHealthChecks("/health/live", new()
+    {
+        Predicate = _ => false,
+        ResponseWriter = HealthCheckResponseWriter.WriteAsync
+    });
+    app.MapHealthChecks("/health/ready", new()
+    {
+        Predicate = c => c.Tags.Contains("ready"),
+        ResponseWriter = HealthCheckResponseWriter.WriteAsync
+    });
+
+    if (!app.Environment.IsEnvironment("Testing"))
+    {
+        using (var scope = app.Services.CreateScope())
+        {
+            var db = scope.ServiceProvider.GetRequiredService<GatewayDbContext>();
+            await db.Database.MigrateAsync();
+        }
+    }
+
+    app.Run();
+}
+catch (System.Exception)
+{
+    
+    throw;
+}
+
+
+public partial class Program { }