redesign of config format

apps/nspanel-lovelace-ui/luibackend/config.py

@@ -0,0 +1,118 @@
+import logging
+
+from luibackend.exceptions import LuiBackendConfigIncomplete
+from luibackend.exceptions import LuiBackendConfigError
+
+
+LOGGER = logging.getLogger(__name__)
+
+
+class PageNode(object):
+    def __init__(self, data, parent=None):
+        self.data = data
+        self.name = None
+        self.childs = []
+        self.parent = parent
+
+        if "items" in data:
+            childs = data.pop("items")
+            for page in childs:
+                self.add_child(PageNode(page, self))
+
+        name  = self.data.get("heading", "unkown") if type(self.data) is dict else self.data
+        ptype = self.data.get("type", "unkown") if type(self.data) is dict else "leaf"
+        #parent = self.parent.data.get("heading", self.parent.data.get("type", "unknown")) if self.parent is not None else "root"
+
+        self.name = f"{ptype}.{name}" if type(self.data) is dict else self.data
+
+    def add_child(self, obj):
+        self.childs.append(obj)
+
+    def dump(self, indent=0):
+        """dump tree to string"""
+        tab = '    '*(indent-1) + ' |- ' if indent > 0 else ''
+        name   = self.name
+        parent = self.parent.name if self.parent is not None else "root"
+        dumpstring = f"{tab}{name} -> {parent} \n"
+        for obj in self.childs:
+            dumpstring += obj.dump(indent + 1)
+        return dumpstring
+    
+    def get_items(self):
+        items = []
+        for i in self.childs:
+            if len(i.childs) > 0:
+                items.append("navigate.todo")
+            else:
+                items.append(i.data)
+        return items
+
+
+
+class LuiBackendConfig(object):
+
+    _DEFAULT_CONFIG = {
+        'panelRecvTopic': "tele/tasmota_your_mqtt_topic/RESULT",
+        'panelSendTopic': "cmnd/tasmota_your_mqtt_topic/CustomSend",
+        'updateMode': "auto-notify",
+        'timeoutScreensaver': 20,
+        'brightnessScreensaver': 20,
+        'locale': "en_US",
+        'timeFormat': "%H:%M",
+        'dateFormatBabel': "full",
+        'dateFormat': "%A, %d. %B %Y",
+        'pages': [{
+            'type': 'screensaver',
+            'weather': 'weather.example',
+            'items': [{
+                'type': 'cardEntities',
+                'heading': 'Test Entities 1',
+                'items': ['switch.test_item', 'switch.test_item', 'switch.test_item']
+                }, {
+                'type': 'cardGrid',
+                'heading': 'Test Grid 1',
+                'items': ['switch.test_item', 'switch.test_item', 'switch.test_item']
+                }
+            ],
+        }],
+    }
+
+    def __init__(self, args=None, check=True):
+        self._config = {}
+        self._page_config = None
+        
+        if args:
+            self.load(args)
+
+        if check:
+            self.check()
+
+    def load(self, args):
+        for k, v in args.items():
+            if k in self._DEFAULT_CONFIG:
+                self._config[k] = v
+        LOGGER.info(f"Loaded config: {self._config}")
+
+        root_page = self.get("pages")[0]
+        self._page_config = PageNode(root_page)
+        
+        LOGGER.info(f"Parsed Page config to the following Tree: \n {self._page_config.dump()}")
+
+    def check(self):
+        errors = 0
+
+    def get(self, name):
+        value = self._config.get(name)
+        if value is None:
+            value = self._DEFAULT_CONFIG.get(name)
+        return value
+
+    def get_root_page(self):
+        return self._page_config
+
+    def get_child_by_heading(self, heading):
+        for page in self._current_page.childs:
+            if heading == page.data["heading"]:
+                self._current_page = page
+        return self._current_page
+