Create pre post script utilities

lib/utils/pre_post_script_utils.dart

@@ -0,0 +1,129 @@
+import 'dart:nativewrappers/_internal/vm/lib/ffi_allocation_patch.dart';
+
+import 'package:apidash_core/apidash_core.dart';
+import 'package:flutter/foundation.dart';
+import '../models/models.dart';
+import '../services/services.dart';
+
+Future<RequestModel> handlePreRequestScript(
+  RequestModel requestModel,
+  EnvironmentModel? originalEnvironmentModel,
+  void Function(EnvironmentModel, List<EnvironmentVariableModel>)? updateEnv,
+) async {
+  final scriptResult = await executePreRequestScript(
+    currentRequestModel: requestModel,
+    activeEnvironment: originalEnvironmentModel?.toJson() ?? {},
+  );
+  final newRequestModel =
+      requestModel.copyWith(httpRequestModel: scriptResult.updatedRequest);
+  if (originalEnvironmentModel != null) {
+    final updatedEnvironmentMap = scriptResult.updatedEnvironment;
+
+    final List<EnvironmentVariableModel> newValues = [];
+    final Map<String, dynamic> mutableUpdatedEnv =
+        Map.from(updatedEnvironmentMap);
+
+    for (final originalVariable in originalEnvironmentModel.values) {
+      if (mutableUpdatedEnv.containsKey(originalVariable.key)) {
+        final dynamic newValue = mutableUpdatedEnv[originalVariable.key];
+        newValues.add(
+          originalVariable.copyWith(
+            value: newValue == null ? '' : newValue.toString(),
+            enabled: true,
+          ),
+        );
+
+        mutableUpdatedEnv.remove(originalVariable.key);
+      } else {
+        // Variable was removed by the script (unset/clear), don't add it to newValues.
+        // Alternatively, you could keep it but set enabled = false:
+        // newValues.add(originalVariable.copyWith(enabled: false));
+      }
+    }
+
+    for (final entry in mutableUpdatedEnv.entries) {
+      final dynamic newValue = entry.value;
+      newValues.add(
+        EnvironmentVariableModel(
+          key: entry.key,
+          value: newValue == null ? '' : newValue.toString(),
+          enabled: true,
+          type: EnvironmentVariableType.variable,
+        ),
+      );
+    }
+    updateEnv?.call(originalEnvironmentModel, newValues);
+  } else {
+    debugPrint(
+        "Skipped environment update as originalEnvironmentModel was null.");
+
+    if (scriptResult.updatedEnvironment.isNotEmpty) {
+      debugPrint(
+          "Warning: Pre-request script updated environment variables, but no active environment was selected to save them to.");
+    }
+    return requestModel;
+  }
+  return newRequestModel;
+}
+
+Future<RequestModel> handlePostResponseScript(
+  RequestModel requestModel,
+  EnvironmentModel? originalEnvironmentModel,
+  void Function(EnvironmentModel, List<EnvironmentVariableModel>)? updateEnv,
+) async {
+  final scriptResult = await executePostResponseScript(
+    currentRequestModel: requestModel,
+    activeEnvironment: originalEnvironmentModel?.toJson() ?? {},
+  );
+
+  final newRequestModel =
+      requestModel.copyWith(httpResponseModel: scriptResult.updatedResponse);
+
+  if (originalEnvironmentModel != null) {
+    final updatedEnvironmentMap = scriptResult.updatedEnvironment;
+
+    final List<EnvironmentVariableModel> newValues = [];
+    final Map<String, dynamic> mutableUpdatedEnv =
+        Map.from(updatedEnvironmentMap);
+
+    for (final originalVariable in originalEnvironmentModel.values) {
+      if (mutableUpdatedEnv.containsKey(originalVariable.key)) {
+        final dynamic newValue = mutableUpdatedEnv[originalVariable.key];
+        newValues.add(
+          originalVariable.copyWith(
+            value: newValue == null ? '' : newValue.toString(),
+            enabled: true,
+          ),
+        );
+
+        mutableUpdatedEnv.remove(originalVariable.key);
+      } else {
+        // Variable was removed by the script (unset/clear), don't add it to newValues.
+        // Alternatively, you could keep it but set enabled = false:
+        // newValues.add(originalVariable.copyWith(enabled: false));
+      }
+    }
+
+    for (final entry in mutableUpdatedEnv.entries) {
+      final dynamic newValue = entry.value;
+      newValues.add(
+        EnvironmentVariableModel(
+          key: entry.key,
+          value: newValue == null ? '' : newValue.toString(),
+          enabled: true,
+          type: EnvironmentVariableType.variable,
+        ),
+      );
+    }
+    updateEnv?.call(originalEnvironmentModel, newValues);
+  } else {
+    debugPrint(
+        "Skipped environment update as originalEnvironmentModel was null.");
+    if (scriptResult.updatedEnvironment.isNotEmpty) {
+      debugPrint(
+          "Warning: Post-response script updated environment variables, but no active environment was selected to save them to.");
+    }
+    return requestModel;
+  }
+  return newRequestModel;
+}