use-create-empty-document.ts

Overview

use-create-empty-document.ts defines a custom React hook, useCreateEmptyDocument, designed to manage the creation process of a new empty document within an application. It integrates modal visibility state management and document creation logic, providing a clean interface for UI components to trigger document creation workflows, handle loading states, and control modal dialogs for user input.

This hook abstracts away the complexity of handling asynchronous document creation, modal state toggling, and error handling (implicitly via return codes), allowing components to focus on rendering and user interaction.

Detailed Explanation

useCreateEmptyDocument

Type: () => { createLoading: boolean; onCreateOk: (name: string) => Promise<void>; createVisible: boolean; hideCreateModal: () => void; showCreateModal: () => void }

A React hook that encapsulates the logic for showing a modal to create a new empty document and handling the creation process.

Returned Object Properties

Internal Hooks Used

• useCreateDocument

  Imported from @/hooks/use-document-request. This hook provides:

  • createDocument(name: string): Promise - An asynchronous function to create a document by name. Returns a numeric status code (0 indicates success).

  • loading: boolean - Indicates if the creation request is in progress.

• useSetModalState

  Imported from @/hooks/common-hooks. This hook manages modal visibility state and provides:

  • visible: boolean - Current visibility state of the modal.

  • hideModal: () => void - Function to hide the modal.

  • showModal: () => void - Function to show the modal.

Method: onCreateOk

async function onCreateOk(name: string): Promise<void>

• Parameters:

  • name - The name of the new document to create.

• Returns: Promise<void>

• Description:

  This method is called to initiate the creation of a new document with the specified name. It invokes createDocument(name) and awaits its completion. If the returned status code is 0 (indicating success), it hides the creation modal by calling hideCreateModal().

• Usage Example:

  const { onCreateOk, createLoading, createVisible, showCreateModal, hideCreateModal } = useCreateEmptyDocument();
  
  // Show modal when user wants to create a document
  showCreateModal();
  
  // When user submits the form with the document name
  const handleSubmit = async (docName: string) => {
    await onCreateOk(docName);
  };
  
  // Render conditional modal
  if (createVisible) {
    return (
      <Modal onClose={hideCreateModal}>
        <CreateDocumentForm onSubmit={handleSubmit} loading={createLoading} />
      </Modal>
    );
  }
  

Implementation Details

• The hook leverages React's useCallback to memoize the onCreateOk function, ensuring it only changes if hideCreateModal or createDocument change. This optimization prevents unnecessary re-renders in components consuming the hook.

• The document creation logic is asynchronous and relies on the external useCreateDocument hook which abstracts the actual API call or business logic for creating a document.

• Modal state management is cleanly separated via useSetModalState, so the hook itself does not manage local state but composes functionality from other reusable hooks.

• The hook returns all necessary state and handlers for full control over the create-document modal lifecycle and document creation process.

Interaction with Other Parts of the System

• Modal UI Components:

  The hook is intended to be used by UI components that render a modal dialog prompting the user for the document name. The component uses createVisible to conditionally render the modal, showCreateModal and hideCreateModal to toggle visibility, and onCreateOk to trigger creation.

• Document Creation Backend/API:

  The actual creation is handled by useCreateDocument, which likely interacts with an API endpoint or backend service. This hook returns a status code that useCreateEmptyDocument uses to determine success.

• Application State and Routing:

  Upon successful creation, the modal closes. Presumably, other parts of the application (not shown here) react to document creation events to update document lists, navigate to the new document, or show success notifications.

Visual Diagram

flowchart TD
    A[useCreateEmptyDocument Hook] --> B[useCreateDocument Hook]
    A --> C[useSetModalState Hook]
    A --> D[UI Component]
    D -->|showCreateModal()| A
    D -->|hideCreateModal()| A
    D -->|onCreateOk(name)| A
    B -->|createDocument(name): Promise<number>| API[Document Creation API]
    C --> ModalState[Modal Visibility State]

    style A fill:#f9f,stroke:#333,stroke-width:2px
    style B fill:#bbf,stroke:#333,stroke-width:2px
    style C fill:#bfb,stroke:#333,stroke-width:2px
    style D fill:#ffb,stroke:#333,stroke-width:2px
    style API fill:#fbb,stroke:#333,stroke-width:2px
    style ModalState fill:#ddd,stroke:#333,stroke-width:1px

Summary

use-create-empty-document.ts provides a composable React hook that integrates modal visibility state and document creation logic, simplifying the implementation of "create new document" workflows in React applications. It abstracts asynchronous creation and modal management, delegating API interaction and UI state handling to specialized hooks, promoting separation of concerns and reusability. This hook is a key piece in the document creation feature, interacting with user interface components and backend services.