From 6c842d4793ead4b83da8a71048df6bc70869494d Mon Sep 17 00:00:00 2001
From: DerGrumpf <p.keier@beyerstedt-it.de>
Date: Sat, 21 Feb 2026 19:08:28 +0100
Subject: [PATCH] Added: Postgrest Endpoint for Learnlytics Database; WIP:
 Swagger for Learnlytics endpoint

---
 hosts/cyper-pi-1/configuration.nix |   2 +-
 hosts/cyper-pi-1/postgrest.nix     |  96 ++++++++++++++------
 hosts/cyper-pi-1/swagger.nix       | 138 ++++++++++++++++++++---------
 3 files changed, 166 insertions(+), 70 deletions(-)

diff --git a/hosts/cyper-pi-1/configuration.nix b/hosts/cyper-pi-1/configuration.nix
index 6121b41..e56adc2 100644
--- a/hosts/cyper-pi-1/configuration.nix
+++ b/hosts/cyper-pi-1/configuration.nix
@@ -8,7 +8,7 @@
     ./postgres.nix
     ./postgrest.nix
     ./swagger.nix
-    ./k3s-master.nix
+    #    ./k3s-master.nix
   ];
 
   # Any RPi 4 specific customizations go here
diff --git a/hosts/cyper-pi-1/postgrest.nix b/hosts/cyper-pi-1/postgrest.nix
index bc86a05..a49aafd 100644
--- a/hosts/cyper-pi-1/postgrest.nix
+++ b/hosts/cyper-pi-1/postgrest.nix
@@ -5,43 +5,85 @@
 
 {
   # PostgREST service
-  systemd.services.postgrest = {
-    description = "PostgREST - PostgreSQL REST API";
-    after = [
-      "postgresql.service"
-      "network.target"
-    ];
-    wantedBy = [ "multi-user.target" ];
+  systemd.services = {
+    postgrest = {
+      description = "PostgREST - PostgreSQL REST API";
+      after = [
+        "postgresql.service"
+        "network.target"
+      ];
+      wantedBy = [ "multi-user.target" ];
 
-    serviceConfig = {
-      Type = "simple";
-      ExecStart = "${pkgs.postgrest}/bin/postgrest /etc/postgrest/postgrest.conf";
-      User = "postgrest";
-      Restart = "on-failure";
-      RestartSec = 5;
+      serviceConfig = {
+        Type = "simple";
+        ExecStart = "${pkgs.postgrest}/bin/postgrest /etc/postgrest/postgrest.conf";
+        User = "postgrest";
+        Restart = "on-failure";
+        RestartSec = 5;
+      };
+    };
+
+    # PostgREST service for learnlytics database
+    postgrest-learnlytics = {
+      description = "PostgREST - Learnlytics API";
+      after = [
+        "postgresql.service"
+        "network.target"
+      ];
+      wantedBy = [ "multi-user.target" ];
+
+      serviceConfig = {
+        Type = "simple";
+        ExecStart = "${pkgs.postgrest}/bin/postgrest /etc/postgrest/postgrest-learnlytics.conf";
+        User = "postgrest";
+        Restart = "on-failure";
+        RestartSec = 5;
+      };
     };
   };
 
   # Create postgrest user
-  users.users.postgrest = {
-    isSystemUser = true;
-    group = "postgrest";
+  users = {
+    users.postgrest = {
+      isSystemUser = true;
+      group = "postgrest";
+    };
+
+    groups.postgrest = { };
   };
 
-  users.groups.postgrest = { };
-
   # PostgREST configuration file
-  environment.etc."postgrest/postgrest.conf".text = ''
-    db-uri = "postgres://postgres:postgres@127.0.0.1:5432/postgres"
-    db-schema = "public"
-    db-anon-role = "web_anon"
-    server-host = "0.0.0.0"
-    server-port = 3000
-    jwt-secret = "no7WwM0xJa/Yzn5o4IZHG4oBNSShl4JRPZOcmhvnqFw="
-  '';
+  environment.etc = {
+    "postgrest/postgrest.conf".text = ''
+      db-uri = "postgres://postgres:1P2h3i4lon@127.0.0.1:5432/postgres"
+      db-schema = "public"
+      db-anon-role = "web_anon"
+      server-host = "0.0.0.0"
+      server-port = 3000
+      server-proxy-uri = "http://192.168.2.200:3000"
+      jwt-secret = "no7WwM0xJa/Yzn5o4IZHG4oBNSShl4JRPZOcmhvnqFw="
+      server-cors-allowed-origins = "*"
+      openapi-server-proxy-uri = "http://192.168.2.200:3000"
+    '';
+
+    # PostgREST configuration for learnlytics database
+    "postgrest/postgrest-learnlytics.conf".text = ''
+      db-uri = "postgres://postgres:1P2h3i4lon@127.0.0.1:5432/learnlytics"
+      db-schema = "public"
+      db-anon-role = "web_anon"
+      server-host = "0.0.0.0"
+      server-port = 3001
+      server-proxy-uri = "http://192.168.2.200:3001"
+      jwt-secret = "dnjudqZC0Fby2DEo3Xt2nY98KlHxxqT7NWvLk5aKmew="
+      server-cors-allowed-origins = "*"
+    '';
+  };
 
   # Open firewall port for PostgREST
-  networking.firewall.allowedTCPPorts = [ 3000 ];
+  networking.firewall.allowedTCPPorts = [
+    3000
+    3001
+  ];
 
   # Include postgrest in system packages
   environment.systemPackages = with pkgs; [
diff --git a/hosts/cyper-pi-1/swagger.nix b/hosts/cyper-pi-1/swagger.nix
index 7c53f95..82fba61 100644
--- a/hosts/cyper-pi-1/swagger.nix
+++ b/hosts/cyper-pi-1/swagger.nix
@@ -2,14 +2,15 @@
   pkgs,
   ...
 }:
-
 {
   # Swagger UI service
   systemd.services.swagger-ui = {
-    description = "Swagger UI for PostgREST API";
-    after = [ "postgrest.service" "network.target" ];
+    description = "Swagger UI for PostgREST APIs";
+    after = [
+      "postgrest.service"
+      "network.target"
+    ];
     wantedBy = [ "multi-user.target" ];
-
     serviceConfig = {
       Type = "simple";
       ExecStart = "${pkgs.nodePackages.http-server}/bin/http-server /var/lib/swagger-ui -p 8080 -c-1 --cors";
@@ -18,54 +19,108 @@
       User = "swagger";
     };
   };
-
   # Create swagger user
-  users.users.swagger = {
-    isSystemUser = true;
-    group = "swagger";
+  users = {
+    users.swagger = {
+      isSystemUser = true;
+      group = "swagger";
+    };
+    groups.swagger = { };
   };
-
-  users.groups.swagger = {};
-
   # Setup Swagger UI directory
   systemd.tmpfiles.rules = [
     "d /var/lib/swagger-ui 0755 swagger swagger"
   ];
 
-  # Create Swagger UI index.html that points to PostgREST OpenAPI
-  environment.etc."swagger-ui-init/index.html".text = ''
-    <!DOCTYPE html>
-    <html>
-      <head>
-        <title>Swagger UI - PostgREST API</title>
-        <meta charset="utf-8"/>
-        <meta name="viewport" content="width=device-width, initial-scale=1">
-        <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui.css">
-      </head>
-      <body>
-        <div id="swagger-ui"></div>
-        <script src="https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui-bundle.js"></script>
-        <script src="https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui-standalone-preset.js"></script>
-        <script>
-          SwaggerUIBundle({
-            url: "http://localhost:3000/openapi.json",
-            dom_id: '#swagger-ui',
-            presets: [
-              SwaggerUIBundle.presets.apis,
-              SwaggerUIStandalonePreset
-            ],
-            layout: "StandaloneLayout"
-          })
-        </script>
-      </body>
-    </html>
-  '';
+  # Index page to select which API
+  environment.etc = {
+    "swagger-ui-init/index.html".text = ''
+      <!DOCTYPE html>
+      <html>
+        <head>
+          <title>PostgREST APIs</title>
+          <meta charset="utf-8"/>
+          <meta name="viewport" content="width=device-width, initial-scale=1">
+          <style>
+            body { font-family: Arial; margin: 40px; }
+            a { display: block; margin: 10px 0; padding: 10px; background: #007bff; color: white; text-decoration: none; border-radius: 5px; width: 200px; text-align: center; }
+            a:hover { background: #0056b3; }
+          </style>
+        </head>
+        <body>
+          <h1>PostgREST APIs</h1>
+          <a href="/default">Default API (port 3000)</a>
+          <a href="/learnlytics">Learnlytics API (port 3001)</a>
+        </body>
+      </html>
+    '';
 
+    # Swagger UI for default API
+    "swagger-ui-init/default/index.html".text = ''
+      <!DOCTYPE html>
+      <html>
+        <head>
+          <title>Swagger UI - Default API</title>
+          <meta charset="utf-8"/>
+          <meta name="viewport" content="width=device-width, initial-scale=1">
+          <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui.css">
+        </head>
+        <body>
+          <div id="swagger-ui"></div>
+          <script src="https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui-bundle.js"></script>
+          <script src="https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui-standalone-preset.js"></script>
+          <script>
+            const host = window.location.host.split(':')[0];
+            SwaggerUIBundle({
+              url: "http://" + host + ":3000",
+              dom_id: '#swagger-ui',
+              presets: [
+                SwaggerUIBundle.presets.apis,
+                SwaggerUIStandalonePreset
+              ],
+              layout: "StandaloneLayout"
+            })
+          </script>
+        </body>
+      </html>
+    '';
+
+    # Swagger UI for learnlytics API
+    "swagger-ui-init/learnlytics/index.html".text = ''
+      <!DOCTYPE html>
+      <html>
+        <head>
+          <title>Swagger UI - Learnlytics API</title>
+          <meta charset="utf-8"/>
+          <meta name="viewport" content="width=device-width, initial-scale=1">
+          <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui.css">
+        </head>
+        <body>
+          <div id="swagger-ui"></div>
+          <script src="https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui-bundle.js"></script>
+          <script src="https://cdn.jsdelivr.net/npm/swagger-ui-dist@3/swagger-ui-standalone-preset.js"></script>
+          <script>
+            const host = window.location.host.split(':')[0];
+            SwaggerUIBundle({
+              url: "http://" + host + ":3001",
+              dom_id: '#swagger-ui',
+              presets: [
+                SwaggerUIBundle.presets.apis,
+                SwaggerUIStandalonePreset
+              ],
+              layout: "StandaloneLayout"
+            })
+          </script>
+        </body>
+      </html>
+    '';
+  };
   # Copy Swagger UI files on startup
   system.activationScripts.swagger-ui-setup = ''
-    mkdir -p /var/lib/swagger-ui
-    cp ${pkgs.swagger-ui}/share/swagger-ui/* /var/lib/swagger-ui/ 2>/dev/null || true
+    mkdir -p /var/lib/swagger-ui/default /var/lib/swagger-ui/learnlytics
     cp /etc/swagger-ui-init/index.html /var/lib/swagger-ui/index.html
+    cp /etc/swagger-ui-init/default/index.html /var/lib/swagger-ui/default/index.html
+    cp /etc/swagger-ui-init/learnlytics/index.html /var/lib/swagger-ui/learnlytics/index.html
     chown -R swagger:swagger /var/lib/swagger-ui
   '';
 
@@ -74,7 +129,6 @@
 
   # Include packages
   environment.systemPackages = with pkgs; [
-    swagger-ui
     nodePackages.http-server
   ];
 }