Added seed from config instead of code

Birdmap.DAL/DbInitializer.cs

@@ -0,0 +1,82 @@
+using Birdmap.DAL.Entities;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using static Birdmap.Common.PasswordHelper;
+
+namespace Birdmap.DAL
+{
+    public class DbInitializer
+    {
+        private readonly BirdmapContext _context;
+        private readonly IConfiguration _configuration;
+        private readonly ILogger<DbInitializer> _logger;
+
+        public DbInitializer(BirdmapContext context, IConfiguration configuration, ILogger<DbInitializer> logger)
+        {
+            _context = context;
+            _configuration = configuration;
+            _logger = logger;
+        }
+
+        public void Initialize()
+        {
+            AddDefaultUsers();
+            AddDefaultServices();
+        }
+
+        private void AddDefaultServices()
+        {
+            _logger.LogInformation("Removing previously added default services...");
+            var alreadyAddedDefaultServices = _context.Services.Where(s => s.IsFromConfig);
+            _context.Services.RemoveRange(alreadyAddedDefaultServices);
+
+            _logger.LogInformation("Adding new default services...");
+            foreach (var service in _configuration.GetSection("Defaults:Services").GetChildren())
+            {
+                _context.Services.Add(new Service
+                {
+                    Name = service.Key,
+                    Uri = new Uri(service.Value),
+                    IsFromConfig = true,
+                });
+            }
+
+            _context.SaveChanges();
+        }
+
+        private void AddDefaultUsers()
+        {
+            _logger.LogInformation("Removing previously added default users...");
+            var alreadyAddedDefaultUsers = _context.Users.Where(s => s.IsFromConfig);
+            _context.Users.RemoveRange(alreadyAddedDefaultUsers);
+
+            var users = _configuration.GetSection("Defaults:Users").GetChildren()
+                .Select(c => new
+                {
+                    Name = c.GetValue<string>("Name"),
+                    Password = c.GetValue<string>("Password"),
+                    Role = Enum.Parse<Roles>(c.GetValue<string>("Role"))
+                });
+
+            _logger.LogInformation("Adding new default users...");
+            foreach (var user in users)
+            {
+                CreatePasswordHash(user.Password, out var hash, out var salt);
+
+                _context.Users.Add(new User
+                {
+                    Name = user.Name,
+                    PasswordHash = hash,
+                    PasswordSalt = salt,
+                    Role = user.Role,
+                    IsFromConfig = true,
+                });
+            }
+
+            _context.SaveChanges();
+        }
+    }
+}