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

SchengenVisaApi/Infrastructure/Auth/TokenGenerator.cs

@@ -0,0 +1,30 @@
+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);
+        }
+    }
+}