refactor(nestjs): Implement users module

packages/server/src/common/decorators/LockMutateBaseCurrency.decorator.ts

@@ -0,0 +1,57 @@
+/**
+ * Map to store all models that have been marked to prevent base currency mutation.
+ * Key is the model name, value is the model class.
+ */
+export const preventMutateBaseCurrencyModels = new Map<string, any>();
+
+/**
+ * Decorator that marks an ORM model to prevent base currency mutation.
+ * When applied to a model class, it adds a static property `preventMutateBaseCurrency` set to true
+ * and registers the model in the preventMutateBaseCurrencyModels map.
+ *
+ * @returns {ClassDecorator} A decorator function that can be applied to a class.
+ */
+export function PreventMutateBaseCurrency(): ClassDecorator {
+  return (target: any) => {
+    // Set the static property on the model class
+    target.preventMutateBaseCurrency = true;
+
+    // Register the model in the map
+    const modelName = target.name;
+    preventMutateBaseCurrencyModels.set(modelName, target);
+
+    // Return the modified class
+    return target;
+  };
+}
+
+/**
+ * Get all registered models that prevent base currency mutation.
+ *
+ * @returns {Map<string, any>} Map of model names to model classes
+ */
+export function getPreventMutateBaseCurrencyModels(): Map<string, any> {
+  return preventMutateBaseCurrencyModels;
+}
+
+/**
+ * Check if a model is registered to prevent base currency mutation.
+ *
+ * @param {string} modelName - The name of the model to check
+ * @returns {boolean} True if the model is registered, false otherwise
+ */
+export function isModelPreventMutateBaseCurrency(modelName: string): boolean {
+  return preventMutateBaseCurrencyModels.has(modelName);
+}
+
+/**
+ * Get a specific model by name that prevents base currency mutation.
+ *
+ * @param {string} modelName - The name of the model to retrieve
+ * @returns {any | undefined} The model class if found, undefined otherwise
+ */
+export function getPreventMutateBaseCurrencyModel(
+  modelName: string,
+): any | undefined {
+  return preventMutateBaseCurrencyModels.get(modelName);
+}