feat: add config manager module with YAML loading for settings and services

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/modules/config_manager.py

@@ -0,0 +1,44 @@
+from pathlib import Path
+from typing import Any
+
+import yaml
+
+
+class ConfigManager:
+    def __init__(self, settings_path: str, services_path: str):
+        self._settings_path = settings_path
+        self._services_path = services_path
+        self._settings: dict[str, Any] = {}
+        self._services: dict[str, Any] = {}
+
+    def _load_yaml(self, path: str) -> dict[str, Any]:
+        p = Path(path)
+        if not p.exists():
+            return {}
+        with open(p) as f:
+            return yaml.safe_load(f) or {}
+
+    def get_settings(self) -> dict[str, Any]:
+        if not self._settings:
+            self._settings = self._load_yaml(self._settings_path)
+        return self._settings
+
+    def get_nodes(self) -> list[dict[str, Any]]:
+        if not self._services:
+            self._services = self._load_yaml(self._services_path)
+        return self._services.get("nodes", [])
+
+    def get_node_by_ip(self, ip: str) -> dict[str, Any] | None:
+        for node in self.get_nodes():
+            if node.get("ip") == ip:
+                return node
+        return None
+
+    def get_network_scan_config(self) -> dict[str, Any]:
+        if not self._services:
+            self._services = self._load_yaml(self._services_path)
+        return self._services.get("network_scan", {})
+
+    def reload(self) -> None:
+        self._settings = {}
+        self._services = {}

backend/tests/test_config_manager.py

@@ -0,0 +1,93 @@
+import os
+import tempfile
+import pytest
+import yaml
+from modules.config_manager import ConfigManager
+
+
+@pytest.fixture
+def sample_settings(tmp_path):
+    settings = {
+        "display": {
+            "resolution": "3840x2160",
+            "rotation_interval_seconds": 30,
+            "transition": "fade",
+            "theme": "dark",
+        },
+        "odoo": {
+            "url": "http://localhost:8069",
+            "database": "test_db",
+            "username": "admin",
+            "password": "admin",
+        },
+        "refresh": {
+            "odoo_minutes": 5,
+            "network_minutes": 10,
+            "ping_seconds": 60,
+        },
+    }
+    path = tmp_path / "settings.yaml"
+    path.write_text(yaml.dump(settings))
+    return str(path)
+
+
+@pytest.fixture
+def sample_services(tmp_path):
+    services = {
+        "nodes": [
+            {
+                "name": "Router",
+                "ip": "192.168.1.1",
+                "username": "admin",
+                "password": "pass",
+                "icon": "router",
+                "connections": [],
+            },
+            {
+                "name": "Server",
+                "ip": "192.168.1.10",
+                "username": "root",
+                "password": "secret",
+                "public_url": "https://example.com",
+                "icon": "server",
+                "connections": ["Router"],
+            },
+        ],
+        "network_scan": {
+            "enabled": True,
+            "subnet": "192.168.1.0/24",
+            "interval_minutes": 10,
+        },
+    }
+    path = tmp_path / "services.yaml"
+    path.write_text(yaml.dump(services))
+    return str(path)
+
+
+def test_load_settings(sample_settings):
+    cm = ConfigManager(settings_path=sample_settings, services_path="dummy")
+    settings = cm.get_settings()
+    assert settings["odoo"]["database"] == "test_db"
+    assert settings["display"]["rotation_interval_seconds"] == 30
+
+
+def test_load_services(sample_services):
+    cm = ConfigManager(settings_path="dummy", services_path=sample_services)
+    nodes = cm.get_nodes()
+    assert len(nodes) == 2
+    assert nodes[0]["name"] == "Router"
+    assert nodes[1]["public_url"] == "https://example.com"
+
+
+def test_get_node_by_ip(sample_services):
+    cm = ConfigManager(settings_path="dummy", services_path=sample_services)
+    node = cm.get_node_by_ip("192.168.1.10")
+    assert node["name"] == "Server"
+    assert cm.get_node_by_ip("10.0.0.1") is None
+
+
+def test_get_network_scan_config(sample_services):
+    cm = ConfigManager(settings_path="dummy", services_path=sample_services)
+    scan = cm.get_network_scan_config()
+    assert scan["enabled"] is True
+    assert scan["subnet"] == "192.168.1.0/24"