feat(infra): standalone Postgres 18 infra compose (shared greenNetwork); remove redundant postgres from app compose; add DataCopy to solution

feat(datacopy): read environment variables (ConnectionStrings__* on server)
fix(postgres): run Postgres type-mapping block at END of OnModelCreating
2026-10-15 15:12:45 +03:30 · 2026-10-15 14:51:42 +03:30 · 2026-10-10 01:15:10 +03:30 · 2026-10-10 01:15:08 +03:30 · 2026-10-10 01:08:42 +03:30 · 2026-10-10 01:05:14 +03:30
8 changed files with 148 additions and 23 deletions
--- a/src/GreenHome.Api/GreenHome.Api.csproj
+++ b/src/GreenHome.Api/GreenHome.Api.csproj
@@ -8,6 +8,7 @@
  </PropertyGroup>

  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Versioning" Version="5.1.0" />
    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.0" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.9">
      <PrivateAssets>all</PrivateAssets>
--- a/src/GreenHome.Api/Program.cs
+++ b/src/GreenHome.Api/Program.cs
@@ -7,7 +7,6 @@ using GreenHome.Infrastructure.Data;
 using GreenHome.Sms.Ippanel;
 using GreenHome.VoiceCall.Avanak;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc.Versioning;
 using Microsoft.AspNetCore.StaticFiles;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.FileProviders;
--- a/src/GreenHome.Api/appsettings.Development.json
+++ b/src/GreenHome.Api/appsettings.Development.json
@@ -6,7 +6,7 @@
    }
  },
  "Database": {
-    "Provider": "SqlServer"
+    "Provider": "Postgres"
  },
  "ConnectionStrings": {
    "Default": "Server=.;Integrated Security=False;Trusted_Connection=True;Encrypt=false;MultipleActiveResultSets=true;Database=GreenHomeDb;",
--- a/src/GreenHome.Api/docker-compose.yaml
+++ b/src/GreenHome.Api/docker-compose.yaml
@@ -33,24 +33,7 @@ services:
    networks:
      - greenNetwork

-  postgres:
-    image: postgres:18-alpine
-    restart: unless-stopped
-    environment:
-      POSTGRES_DB: greenhome
-      POSTGRES_USER: greenhome
-      POSTGRES_PASSWORD: greenhome
-    ports:
-      - "5432:5432"
-    volumes:
-      - pgdata:/var/lib/postgresql/data
-    networks:
-      - greenNetwork
-
 networks:
  serviceNetwork:
    name: greenNetwork
    external: true
-
-volumes:
-  pgdata:
--- a/src/GreenHome.DataCopy/Program.cs
+++ b/src/GreenHome.DataCopy/Program.cs
@@ -38,6 +38,7 @@ internal static class Program
        var config = new ConfigurationBuilder()
            .SetBasePath(AppContext.BaseDirectory)
            .AddJsonFile("appsettings.json")
+            .AddEnvironmentVariables() // lets the server pass ConnectionStrings__* env vars
            .Build();

        var sqlServerCs = config.GetConnectionString("SqlServer")
@@ -117,8 +118,9 @@ internal static class Program

        foreach (var (_, table) in order)
        {
-            long src = (long)(await ScalarAsync(srcConn, $"SELECT COUNT(*) FROM {table}"))!;
-            long dst = (long)(await ScalarAsync(pgConn, $"SELECT COUNT(*) FROM \"{table}\""))!;
+            // SQL Server COUNT(*) is Int32, Postgres is Int64 — Convert handles both
+            long src = Convert.ToInt64(await ScalarAsync(srcConn, $"SELECT COUNT(*) FROM {table}"))!;
+            long dst = Convert.ToInt64(await ScalarAsync(pgConn, $"SELECT COUNT(*) FROM \"{table}\""))!;
            if (src != dst) problems++;
            Console.WriteLine($"{(src == dst ? "OK   " : "FAIL ")} {table,-28} source={src,-10} target={dst}");
        }
@@ -168,9 +170,11 @@ internal static class Program
        var max = (int)(await ScalarAsync(pg, $"SELECT COALESCE(MAX(\"{pkName}\"), 0) FROM \"{table}\""))!;
        if (max > 0)
        {
-            // Keep the identity sequence above the copied max so new rows don't collide
+            // Keep the identity sequence above the copied max so new rows don't collide.
+            // pg_get_serial_sequence(text, text) — verified signature. format('%I', ...)
+            // preserves the exact table case EF used; the column is passed as plain text.
            await target.Database.ExecuteSqlRawAsync(
-                $"SELECT setval(pg_get_serial_sequence('{table}', '{pkName}'), {max})");
+                $"SELECT setval(pg_get_serial_sequence(format('%I', '{table}'), '{pkName}'), {max})");
        }
        Console.WriteLine($"\n[done ] {table}: copied={copied}, maxId={max}");
    }
--- a/src/GreenHome.Infrastructure/Data/GreenHomeDbContext.cs
+++ b/src/GreenHome.Infrastructure/Data/GreenHomeDbContext.cs
@@ -497,5 +497,25 @@ public sealed class GreenHomeDbContext : DbContext
            b.HasIndex(x => x.At);
            b.HasIndex(x => x.AdminUserId);
        });
+
+        // Postgres-specific mappings (SQL Server path is untouched).
+        // MUST run last: fluent HasMaxLength/HasColumnType calls above set the
+        // values we adjust here, so this block has to see the final model state.
+        //  1) DateTime -> "timestamp" (no tz): mirrors naive datetime2, accepts any Kind.
+        //  2) varchar: Postgres counts BYTES, SQL Server's nvarchar counts CHARACTERS.
+        //     x4 keeps char-count semantics for any UTF-8 charset (Persian = 2 bytes/char).
+        if (Database.ProviderName == "Npgsql.EntityFrameworkCore.PostgreSQL")
+        {
+            foreach (var et in modelBuilder.Model.GetEntityTypes())
+            {
+                foreach (var p in et.GetProperties())
+                {
+                    if (p.ClrType == typeof(DateTime) || p.ClrType == typeof(DateTime?))
+                        p.SetColumnType("timestamp");
+                    else if (p.ClrType == typeof(string) && p.GetMaxLength() is int len)
+                        p.SetColumnType($"character varying({len * 4})");
+                }
+            }
+        }
    }
 }
--- a/src/GreenHome.sln
+++ b/src/GreenHome.sln
@@ -17,40 +17,114 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GreenHome.VoiceCall.Avanak"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GreenHome.AI.DeepSeek", "GreenHome.AI.DeepSeek\GreenHome.AI.DeepSeek.csproj", "{63D676E7-B882-4E70-8090-E56CFD516B0A}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GreenHome.DataCopy", "GreenHome.DataCopy\GreenHome.DataCopy.csproj", "{0F5C7A31-54F9-4C29-8E05-66CECAF520C7}"
+EndProject
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 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
--- a/src/infra/docker-compose.yml
+++ b/src/infra/docker-compose.yml
@@ -0,0 +1,44 @@
+# Shared database infrastructure — standalone from the app.
+# Reused by GreenHome and any future service on the same Docker network.
+#
+# Server usage (one-time):
+#   1. mkdir -p /opt/infra && copy this file there
+#   2. docker network create greenNetwork        (skip if it already exists)
+#   3. cd /opt/infra && docker compose up -d
+#   4. docker compose exec postgres pg_isready -U greenhome
+#
+# App connection string: Host=postgres;Port=5432;Database=greenhome;Username=greenhome;Password=<same as below>
+#
+# Adding a DB for another service later (no restart needed):
+#   docker compose exec -it postgres psql -U greenhome -c "CREATE DATABASE otherapp OWNER otherapp;"
+services:
+  postgres:
+    image: postgres:18-alpine
+    container_name: postgres
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: greenhome
+      POSTGRES_USER: greenhome
+      # ⚠️ set a strong password here and use the same value in the app's
+      # ConnectionStrings__Postgres env var
+      POSTGRES_PASSWORD: CHANGE_ME_STRONG_PASSWORD
+    # localhost only: containers on greenNetwork reach it by name "postgres";
+    # host psql can still connect via 127.0.0.1:5432. Do NOT bind 0.0.0.0.
+    ports:
+      - "127.0.0.1:5432:5432"
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U greenhome -d greenhome"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    networks:
+      - greenNetwork
+
+networks:
+  greenNetwork:
+    external: true
+
+volumes:
+  pgdata:
Author	SHA1	Message	Date
alireza	f1b55db6d1	feat(infra): standalone Postgres 18 infra compose (shared greenNetwork); remove redundant postgres from app compose; add DataCopy to solution	2026-10-15 15:12:45 +03:30
alireza	7a8e371195	feat(datacopy): read environment variables (ConnectionStrings__* on server)	2026-10-15 14:51:42 +03:30
alireza	e5207d53b7	fix(postgres): run Postgres type-mapping block at END of OnModelCreating	2026-10-10 01:15:10 +03:30
alireza	a69862fe73	fix(datacopy): COUNT(*) is Int32 on SQL Server — use Convert.ToInt64	2026-10-10 01:15:08 +03:30
alireza	9b51c866c3	fix(postgres): varchar byte-vs-char mismatch — scale string lengths x4 for Postgres	2026-10-10 01:08:42 +03:30
alireza	2a786acfb6	fix(datacopy): use pg_get_serial_sequence(text, text) overload — verified against local PG 18	2026-10-10 01:05:14 +03:30
alireza	40516e8f23	fix(datacopy): cast format('%I') result to regclass for pg_get_serial_sequence	2026-10-10 01:01:30 +03:30
alireza	f58c14511b	fix(datacopy): pg_get_serial_sequence takes 1 arg (regclass), not table+column	2026-10-10 00:58:27 +03:30
alireza	5cd80dbf34	fix(datacopy): quote identifiers in pg_get_serial_sequence via format('%I.%I')	2026-10-10 00:56:04 +03:30
alireza	923b6b325b	fix(postgres): map DateTime to timestamp without time zone (Npgsql rejects Kind=Unspecified on timestamptz)	2026-10-10 00:51:59 +03:30