work-club-manager/backend/WorkClub.Api/Program.cs

using Finbuckle.MultiTenant;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.EntityFrameworkCore;
using WorkClub.Api.Auth;
using WorkClub.Api.Endpoints.Shifts;
using WorkClub.Api.Endpoints.Tasks;
using WorkClub.Api.Middleware;
using WorkClub.Api.Services;
using WorkClub.Application.Interfaces;
using WorkClub.Infrastructure.Data;
using WorkClub.Infrastructure.Data.Interceptors;
using WorkClub.Infrastructure.Services;
using WorkClub.Infrastructure.Seed;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOpenApi();

builder.Services.AddMultiTenant<TenantInfo>()
    .WithHeaderStrategy("X-Tenant-Id")
    .WithClaimStrategy("tenant_id")
    .WithInMemoryStore(options =>
    {
        options.IsCaseSensitive = false;
    });

builder.Services.AddHttpContextAccessor();
builder.Services.AddScoped<ITenantProvider, TenantProvider>();
builder.Services.AddScoped<SeedDataService>();
builder.Services.AddScoped<TaskService>();
builder.Services.AddScoped<ShiftService>();

builder.Services.AddSingleton<TenantDbConnectionInterceptor>();
builder.Services.AddSingleton<SaveChangesTenantInterceptor>();

builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
    .AddJwtBearer(options =>
    {
        options.Authority = builder.Configuration["Keycloak:Authority"];
        options.Audience = builder.Configuration["Keycloak:Audience"];
        options.RequireHttpsMetadata = false;
        options.TokenValidationParameters = new Microsoft.IdentityModel.Tokens.TokenValidationParameters
        {
            ValidateIssuer = true,
            ValidateAudience = true,
            ValidateLifetime = true,
            ValidateIssuerSigningKey = true
        };
    });

builder.Services.AddScoped<IClaimsTransformation, ClubRoleClaimsTransformation>();

builder.Services.AddAuthorizationBuilder()
    .AddPolicy("RequireAdmin", policy => policy.RequireRole("Admin"))
    .AddPolicy("RequireManager", policy => policy.RequireRole("Admin", "Manager"))
    .AddPolicy("RequireMember", policy => policy.RequireRole("Admin", "Manager", "Member"))
    .AddPolicy("RequireViewer", policy => policy.RequireAuthenticatedUser());

builder.Services.AddDbContext<AppDbContext>((sp, options) =>
    options.UseNpgsql(builder.Configuration.GetConnectionString("DefaultConnection"))
           .AddInterceptors(
               sp.GetRequiredService<TenantDbConnectionInterceptor>(),
               sp.GetRequiredService<SaveChangesTenantInterceptor>()));

var connectionString = builder.Configuration.GetConnectionString("DefaultConnection");
if (!string.IsNullOrEmpty(connectionString))
{
    builder.Services.AddHealthChecks()
        .AddNpgSql(connectionString);
}
else
{
    builder.Services.AddHealthChecks();
}

var app = builder.Build();

if (app.Environment.IsDevelopment())
{
    app.MapOpenApi();
    
    using var scope = app.Services.CreateScope();
    var seedService = scope.ServiceProvider.GetRequiredService<SeedDataService>();
    await seedService.SeedAsync();
}

app.UseHttpsRedirection();

app.UseAuthentication();
app.UseMultiTenant();
app.UseMiddleware<TenantValidationMiddleware>();
app.UseAuthorization();

app.MapHealthChecks("/health/live", new Microsoft.AspNetCore.Diagnostics.HealthChecks.HealthCheckOptions
{
    Predicate = _ => false
});

app.MapHealthChecks("/health/ready");
app.MapHealthChecks("/health/startup");

var summaries = new[]
{
    "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
};

app.MapGet("/weatherforecast", () =>
{
    var forecast =  Enumerable.Range(1, 5).Select(index =>
        new WeatherForecast
        (
            DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
            Random.Shared.Next(-20, 55),
            summaries[Random.Shared.Next(summaries.Length)]
        ))
        .ToArray();
    return forecast;
})
.WithName("GetWeatherForecast");

app.MapGet("/api/test", () => Results.Ok(new { message = "Test endpoint" }))
    .RequireAuthorization();

app.MapTaskEndpoints();
app.MapShiftEndpoints();

app.Run();

record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
{
    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
}

public partial class Program { }