Added authentication and authorization, updated dependency injections, removed hard-coded connection string

SchengenVisaApi/Infrastructure/Auth/ServiceCollectionsExtensions.cs

@@ -0,0 +1,24 @@
+using System.IdentityModel.Tokens.Jwt;
+using ApplicationLayer.AuthServices.NeededServices;
+using ApplicationLayer.GeneralNeededServices;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace Infrastructure.Auth
+{
+    public static class ServiceCollectionsExtensions
+    {
+        public static IServiceCollection AddTokenGenerator(this IServiceCollection services, TokenGeneratorOptions options)
+        {
+            services.AddSingleton<JwtSecurityTokenHandler>();
+            services.AddSingleton<ITokenGenerator, TokenGenerator>(provider =>
+            {
+                var tokenHandler = provider.GetRequiredService<JwtSecurityTokenHandler>();
+                var dateTimeProvider = provider.GetRequiredService<IDateTimeProvider>();
+
+                return new TokenGenerator(options, tokenHandler, dateTimeProvider);
+            });
+
+            return services;
+        }
+    }
+}

SchengenVisaApi/Infrastructure/Auth/TokenGenerator.cs

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+using System.IdentityModel.Tokens.Jwt;
+using System.Security.Claims;
+using ApplicationLayer.AuthServices.NeededServices;
+using ApplicationLayer.GeneralNeededServices;
+using Domains.Users;
+
+namespace Infrastructure.Auth
+{
+    public class TokenGenerator(TokenGeneratorOptions options, JwtSecurityTokenHandler tokenHandler, IDateTimeProvider dateTimeProvider)
+        : ITokenGenerator
+    {
+        public string CreateToken(User user)
+        {
+            var claims = new List<Claim>
+            {
+                new(ClaimTypes.Role, user.Role.ToString()),
+                new(ClaimTypes.Email, user.Email)
+            };
+
+            var token = new JwtSecurityToken(
+                issuer: options.Issuer,
+                audience: options.Audience,
+                expires: dateTimeProvider.Now().Add(options.ValidTime),
+                signingCredentials: options.Credentials,
+                claims: claims);
+
+            return tokenHandler.WriteToken(token);
+        }
+    }
+}

SchengenVisaApi/Infrastructure/Auth/TokenGeneratorOptions.cs

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+using Microsoft.IdentityModel.Tokens;
+
+namespace Infrastructure.Auth
+{
+    public record TokenGeneratorOptions(string Issuer, string Audience, TimeSpan ValidTime, SigningCredentials Credentials);
+}