restructure ef core migrations

-added different context for production environments
-added migrations for both dev and production databases
-added config values ``ProdDbProvider`` and ``ProdDbConnection`` (since most likely production environment will use PGSQL or MySQL, although PGSQL migrations are not provided but can be made)

src/Configuration/ApiServerConfig.cs

@@ -9,8 +9,10 @@ public class ApiServerConfig {
     public bool LoadNonSoDData  { get; set; } = false;
 
     public DbProviders DbProvider { get; set; } = DbProviders.SQLite;
+    public DbProviders ProdDbProvider {  get; set; } = DbProviders.MySQL;
     public string DbPath { get; set; } = string.Empty;
     public string DbConnection { get; set; } = string.Empty;
+    public string ProdDbConnection { get; set; } = string.Empty;
 }
 
 public enum DbProviders {

src/Model/ProductionDBContext.cs

@@ -0,0 +1,34 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
+using sodoff.Configuration;
+
+namespace sodoff.Model
+{
+    public class ProductionDBContext : DBContext
+    {
+        private readonly IOptions<ApiServerConfig> config;
+        public ProductionDBContext(IOptions<ApiServerConfig> config) : base(config)
+        {
+            this.config = config;
+        }
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            #if USE_POSTGRESQL
+            if (config.Value.ProdDbProvider == DbProviders.PostgreSQL)
+            {
+                optionsBuilder.UseNpgsql(config.Value.ProdDbConnection).UseLazyLoadingProxies();
+                return;
+            }
+            #endif
+            #if USE_MYSQL
+            if (config.Value.ProdDbProvider == DbProviders.MySQL)
+            {
+                optionsBuilder.UseMySQL(config.Value.ProdDbConnection).UseLazyLoadingProxies();
+                return;
+            }
+            #endif
+            throw new Exception($"Unsupported Production DbProvider {config.Value.ProdDbProvider}");
+        }
+    }
+}

src/Program.cs

@@ -21,6 +21,7 @@ builder.Services.AddControllers(options => {
     options.Filters.Add<LogRequestOnError>();
 });
 builder.Services.AddDbContext<DBContext>();
+builder.Services.AddDbContext<ProductionDBContext>();
 
 // create Modding Service singleton here ... do this before start http server to avoid serve invalid assets list
 builder.Services.AddSingleton<ModdingService>(new ModdingService());
@@ -63,11 +64,10 @@ var app = builder.Build();
 
 using var scope = app.Services.CreateScope();
 
-if(app.Environment.IsDevelopment())
-{
-    var migrations = scope.ServiceProvider.GetRequiredService<DBContext>().Database.GetPendingMigrations();
-    if (migrations != null) await scope.ServiceProvider.GetRequiredService<DBContext>().Database.MigrateAsync();
-}
+if (app.Environment.IsDevelopment())
+    scope.ServiceProvider.GetRequiredService<DBContext>().Database.Migrate();
+else
+    scope.ServiceProvider.GetRequiredService<ProductionDBContext>().Database.Migrate();
 
 // Configure the HTTP request pipeline.
 

src/appsettings.json

@@ -44,33 +44,39 @@
     "// UseCache": "When true, downloading assets in partial mode will be stored in assets-cache for use in subsequent requests",
     "UseCache": true
   },
-  "ApiServer": {
-    "// ResponseURL": "When not empty is used as server url in some responses. Otherwise will be auto detected.",
-    "ResponseURL": "",
+    "ApiServer": {
+        "// ResponseURL": "When not empty is used as server url in some responses. Otherwise will be auto detected.",
+        "ResponseURL": "",
 
-    "// MMOAdress": "MMO server address (IP or domain) to use in GetMMOServerInfo* responses.",
-    "MMOAdress": "127.0.0.1",
+        "// MMOAdress": "MMO server address (IP or domain) to use in GetMMOServerInfo* responses.",
+        "MMOAdress": "127.0.0.1",
 
-    "// MMOPort": "MMO server port to use in GetMMOServerInfo* responses.",
-    "MMOPort": 9933,
+        "// MMOPort": "MMO server port to use in GetMMOServerInfo* responses.",
+        "MMOPort": 9933,
 
-    "// MMOSupportMinVersion": "Minimum client version allowed to use MMO. For example: '0xa3a31a0a' mean SoD 3.31, '0xa0000000' mean all SoD version, 0 mean all games.",
-    "MMOSupportMinVersion": "0",
-    
-    "// LoadNonSoDData": "set to 'true' to support non SoD games, set to 'false' to reduce memory usage",
-    "LoadNonSoDData": true,
+        "// MMOSupportMinVersion": "Minimum client version allowed to use MMO. For example: '0xa3a31a0a' mean SoD 3.31, '0xa0000000' mean all SoD version, 0 mean all games.",
+        "MMOSupportMinVersion": "0",
 
-    "// DbProvider": "Select database backend to use: SQLite, PostgreSQL, MySQL (availability may depend on build options)",
-    "DbProvider": "SQLite",
+        "// LoadNonSoDData": "set to 'true' to support non SoD games, set to 'false' to reduce memory usage",
+        "LoadNonSoDData": true,
 
-    "// DbPath": "Path to SQLite database file. If empty, \"sodoff.db\" from current directory will be used.",
-    "DbPath": "",
+        "// DbProvider": "Select database backend to use: SQLite, PostgreSQL, MySQL (availability may depend on build options)",
+        "DbProvider": "SQLite",
 
-    "// DbConnection": "Database connection string for PostgreSQL and MySQL",
-    "// DbConnection PostgreSQL Example": "Host=127.0.0.1;Database=sodoffdb;Username=sodoffuser;Password=secret",
-    "// DbConnection MySQL Example": "Server=127.0.0.1;Database=sodoffdb;Uid=sodoffuser;Pwd=secret;Allow User Variables=True",
-    "DbConnection": ""
-  },
+        "// ProdDbProvider": "Select production database backend to use: PostgreSQL, MySQL (availability may depend on build options)",
+        "ProdDbProvider": "MySQL",
+
+        "// DbPath": "Path to SQLite database file. If empty, \"sodoff.db\" from current directory will be used.",
+        "DbPath": "",
+
+        "// DbConnection": "Database connection string for PostgreSQL and MySQL",
+        "// DbConnection PostgreSQL Example": "Host=127.0.0.1;Database=sodoffdb;Username=sodoffuser;Password=secret",
+        "// DbConnection MySQL Example": "Server=127.0.0.1;Database=sodoffdb;Uid=sodoffuser;Pwd=secret;Allow User Variables=True",
+        "DbConnection": "",
+
+        "// ProdDbConnection": "Database connection string for PostgreSQL and MySQL (examples above)",
+        "ProdDbConnection": "Server=172.21.0.3;Database=sodoffdb;Uid=sodoffuser;Pwd=8s7IvsrMQWASTXs;Allow User Variables=True"
+    },
   "Logging": {
     "LogLevel": {
       "Default": "Information",

src/sodoff.csproj

@@ -168,5 +168,7 @@
 
   <ItemGroup>
     <Folder Include="Dlls\" />
+    <Folder Include="Migrations\ProductionMigrations\" />
+    <Folder Include="Migrations\DevMigrations\" />
   </ItemGroup>
 </Project>