use-display-owner.ts

Overview

The use-display-owner.ts file defines a custom React hook, useDisplayOwnerName, which provides a utility function to determine whether to display the owner's nickname based on tenant identity. This hook leverages tenant information fetched via another hook, useFetchTenantInfo, and encapsulates logic that compares tenant IDs to decide if the owner's name should be shown or hidden.

This utility is primarily used in UI components where tenant-specific ownership or user nickname display is conditional, ensuring that the current tenant's own nickname is not redundantly shown.

Detailed Explanation

Exported Function: useDisplayOwnerName

Description

useDisplayOwnerName is a custom React hook that returns a memoized callback function, getOwnerName. The purpose of this callback is to conditionally return the nickname of an owner based on tenant ID comparison.

Usage

const getOwnerName = useDisplayOwnerName();

const ownerNickname = getOwnerName(tenantId, nickname);

• If the supplied tenantId matches the current tenant's ID (from fetched tenant info), getOwnerName returns null.

• Otherwise, it returns the provided nickname.

This is useful in UI scenarios where you want to avoid displaying the nickname of the current tenant as the "owner" because it implicitly refers to the current user.

Parameters of getOwnerName

Return Value of getOwnerName

Implementation Details

• The hook internally calls useFetchTenantInfo to retrieve the current tenant's information. This hook presumably fetches and returns tenant-related data asynchronously.

• The hook uses React's useCallback to memoize the getOwnerName function, optimizing performance by avoiding unnecessary re-creations unless the current tenant ID changes.

• The comparison logic is straightforward: if the tenantId passed to getOwnerName matches the current tenant's ID, the function returns null to hide the nickname; otherwise, it returns the nickname.

• The hook assumes that data from useFetchTenantInfo is always defined and contains a tenant_id property.

Interaction with Other Parts of the System

• Dependency: This file depends on useFetchTenantInfo (imported from '@/hooks/user-setting-hooks'), which is responsible for fetching tenant information. It relies on this hook to get current tenant context data.

• Usage Context: Typically used in React UI components that render user or tenant-related information, particularly where displaying the owner's nickname depends on whether the owner is the current tenant.

• React Ecosystem: This hook leverages React's useCallback for memoization and is intended for use within React functional components.

Example Usage in a Component

import React from 'react';
import { useDisplayOwnerName } from './use-display-owner';

function OwnerDisplay({ tenantId, nickname }: { tenantId: string; nickname: string }) {
  const getOwnerName = useDisplayOwnerName();
  const ownerName = getOwnerName(tenantId, nickname);

  if (!ownerName) {
    return <span>You</span>; // or nothing if preferred
  }

  return <span>{ownerName}</span>;
}

Mermaid Diagram: Flowchart of useDisplayOwnerName Hook

flowchart TD
    A[useDisplayOwnerName Hook] --> B[useFetchTenantInfo Hook]
    B --> C{Tenant Info Data}
    A --> D[getOwnerName Callback]
    D --> E[Input: tenantId, nickname]
    E --> F{tenantId === current tenant_id?}
    F -- Yes --> G[Return null]
    F -- No  --> H[Return nickname]

Summary

• Purpose: Provides a memoized function to conditionally display an owner's nickname based on tenant identity.

• Key Logic: Compares given tenant ID with current tenant's ID; returns nickname only if different.

• React Integration: Uses useCallback and depends on tenant info from useFetchTenantInfo.

• Use Case: Simplifies UI logic for displaying or hiding owner names in multi-tenant applications.

This file encapsulates a small yet important piece of tenant-aware UI logic, promoting code reuse and separation of concerns in the application's React components.