Add table creation

lib/api/model/table_field_model.dart

@@ -0,0 +1,127 @@
+import 'package:uuid/uuid.dart';
+
+typedef SerialTableField = TableField<int>;
+typedef UUIDTableField = TableField<UuidValue>;
+typedef StringTableField = TableField<String>;
+typedef BigIntTableField = TableField<BigInt>;
+typedef BoolTableField = TableField<bool>;
+typedef DateTableField = TableField<DateTime>;
+typedef DateTimeTableField = TableField<DateTime>;
+typedef FloatTableField = TableField<double>;
+typedef IntTableField = TableField<int>;
+
+final possibleFieldTypes = {
+  "serial": SerialTableField,
+  "uuid": UUIDTableField,
+  "str": StringTableField,
+  "bigint": BigIntTableField,
+  "bool": BoolTableField,
+  "date": DateTableField,
+  "datetime": DateTimeTableField,
+  "float": FloatTableField,
+  "int": IntTableField,
+};
+
+class TableField<T> {
+  final String fieldName;
+  final String fieldType;
+  final bool isUnique;
+  final bool isPrimary;
+  final Type type = T;
+
+  TableField({
+    required this.fieldName,
+    required this.fieldType,
+    required this.isUnique,
+    required this.isPrimary,
+  });
+
+  bool canBePrimary() {
+    return fieldType == "serial" || fieldType == "uuid";
+  }
+
+  @override
+  String toString() {
+    return "TableField<$T>(fieldName: $fieldName, fieldType: $fieldType, isUnique: $isUnique, isPrimary: $isPrimary)";
+  }
+
+  String toColumnDefinition() {
+    return "$fieldName:$fieldType${isPrimary ? ":primary" : ""}${isUnique ? ":unique" : ""}";
+  }
+
+  static TableField parseTableField(String definition) {
+    final parts = definition.split(":");
+    final fieldName = parts[0];
+    final fieldType = parts[1];
+    final isUnique = parts.contains("unique");
+    final isPrimary = parts.contains("primary");
+
+    switch (fieldType) {
+      case "serial":
+        return SerialTableField(
+          fieldName: fieldName,
+          fieldType: fieldType,
+          isUnique: isUnique,
+          isPrimary: isPrimary,
+        );
+      case "uuid":
+        return UUIDTableField(
+          fieldName: fieldName,
+          fieldType: fieldType,
+          isUnique: isUnique,
+          isPrimary: isPrimary,
+        );
+      case "str":
+        return StringTableField(
+          fieldName: fieldName,
+          fieldType: fieldType,
+          isUnique: isUnique,
+          isPrimary: isPrimary,
+        );
+      case "bigint":
+        return BigIntTableField(
+          fieldName: fieldName,
+          fieldType: fieldType,
+          isUnique: isUnique,
+          isPrimary: isPrimary,
+        );
+      case "bool":
+        return BoolTableField(
+          fieldName: fieldName,
+          fieldType: fieldType,
+          isUnique: isUnique,
+          isPrimary: isPrimary,
+        );
+      case "date":
+        return DateTableField(
+          fieldName: fieldName,
+          fieldType: fieldType,
+          isUnique: isUnique,
+          isPrimary: isPrimary,
+        );
+      case "datetime":
+        return DateTimeTableField(
+          fieldName: fieldName,
+          fieldType: fieldType,
+          isUnique: isUnique,
+          isPrimary: isPrimary,
+        );
+      case "float":
+        return FloatTableField(
+          fieldName: fieldName,
+          fieldType: fieldType,
+          isUnique: isUnique,
+          isPrimary: isPrimary,
+        );
+      case "int":
+        return IntTableField(
+          fieldName: fieldName,
+          fieldType: fieldType,
+          isUnique: isUnique,
+          isPrimary: isPrimary,
+        );
+      default:
+        throw Exception("Unknown field type: $fieldType");
+    }
+  }
+}