Add model to handle service connections

pg_service_parser/core/connection_model.py

@@ -0,0 +1,64 @@
+from qgis.core import QgsAbstractDatabaseProviderConnection
+from qgis.PyQt.QtCore import QAbstractTableModel, QModelIndex, Qt
+from qgis.PyQt.QtGui import QFont
+
+
+class ServiceConnectionModel(QAbstractTableModel):
+    KEY_COL = 0
+    VALUE_COL = 1
+
+    def __init__(
+        self, service_name: str, connections: dict[str, QgsAbstractDatabaseProviderConnection]
+    ) -> None:
+        super().__init__()
+        self.__service_name = service_name
+        self.__model_data = connections
+
+    def rowCount(self, parent=QModelIndex()):
+        return len(self.__model_data)
+
+    def columnCount(self, parent=QModelIndex()):
+        return 2
+
+    def index_to_connection_key(self, index):
+        return list(self.__model_data.keys())[index.row()]
+
+    def data(self, index, role=Qt.ItemDataRole.DisplayRole):
+        if not index.isValid():
+            return None
+
+        key = list(self.__model_data.keys())[index.row()]
+        if role == Qt.ItemDataRole.DisplayRole:
+            if index.column() == self.KEY_COL:
+                return key
+            elif index.column() == self.VALUE_COL:
+                return self.__model_data[key].uri()
+        elif role == Qt.ItemDataRole.FontRole:
+            if index.column() == self.KEY_COL:
+                font = QFont()
+                font.setBold(True)
+                return font
+            elif index.column() == self.VALUE_COL:
+                font = QFont()
+                font.setItalic(True)
+                return font
+
+        return None
+
+    def headerData(
+        self, section: int, orientation: Qt.Orientation, role: Qt.DisplayRole = Qt.DisplayRole
+    ):
+        if orientation == Qt.Horizontal:
+            if section == self.KEY_COL:
+                return "Connection name"
+            elif section == self.VALUE_COL:
+                return "Configuration"
+
+    def flags(self, idx):
+        if not idx.isValid():
+            return ~Qt.ItemFlag.ItemIsSelectable & ~Qt.ItemFlag.ItemIsEnabled
+
+        return Qt.ItemFlag.ItemIsSelectable | Qt.ItemFlag.ItemIsEnabled
+
+    def service_name(self):
+        return self.__service_name