useApp

Overview

The useApp hook is designed to manage and synchronize bee audio scenes with active bees, providing a streamlined approach to handle audio scenarios in an application. It employs state management, asynchronous server communication, and persistent storage.

Implementation

Imports

import React, { useEffect, useState } from "react";
import {
  BeeAudioScene,
  useAppPersistentStorage,
} from "./useAppPersistentStorage";
import { useSocket } from "./useSocket";
import { IBee } from "@shared/interfaces";
import { useAppStore } from "./useAppStore";

• React Hooks: Utilizes useEffect and useState for component lifecycle and state management.
• Custom Hooks:
  • useAppPersistentStorage: Manages persistent storage of BeeAudioScene.
  • useSocket: Handles socket communication.
  • useAppStore: Manages the application state related to current bees.

Functionality

The useApp function is a custom hook providing the following features:

• State Management: Initializes a loading state.
• Socket Communication: Requests active bees from the server.
• Persistent Storage: Fetches and updates bee audio scenes.
• Bee Management: Manages the current swarm of bees.

Detailed Description

State Initialization

const [loading, setLoading] = useState(true);

• loading State:
  • Purpose: Indicates the loading status of bee audio scenes.
  • Initial Value: true

Socket Communication

const { sendToServerAndExpectResponseAsync } = useSocket();

• Function: sendToServerAndExpectResponseAsync
  • Purpose: Sends requests to the server and expects an asynchronous response.
  • Usage: Fetches active bees.

Persistent Storage Access

const beeAudioScenes = useAppPersistentStorage((state) => state.beeAudioScenes);
const swapAllBeeAudioScenes = useAppPersistentStorage(
  (state) => state.swapAllBeeAudioScenes
);

• beeAudioScenes: Retrieves stored bee audio scenes.
• swapAllBeeAudioScenes: Updates all bee audio scenes with new data.

Current Swarm Management

const setCurrentSwarm = useAppStore((state) => state.setCurrentSwarm);

• Function: setCurrentSwarm
  • Purpose: Sets the current active swarm of bees.

Effect Hook

useEffect(() => {
  if (!beeAudioScenes) {
    return;
  }

  sendToServerAndExpectResponseAsync("fetchActiveBees", {}).then((data) => {
    const currentSwarm = data as IBee[];
    setCurrentSwarm(currentSwarm);

    const updatedBeeAudioScenes: BeeAudioScene[] = [];
    currentSwarm.forEach((bee) => {
      const beeAudioScene = beeAudioScenes.find(
        (audioScene) => audioScene.bee.id === bee.id
      );
      if (!beeAudioScene) {
        updatedBeeAudioScenes.push({
          bee,
          audioScene: undefined,
          isLooping: false,
        });
      } else {
        updatedBeeAudioScenes.push(beeAudioScene);
      }
    });

    swapAllBeeAudioScenes(updatedBeeAudioScenes);
    setLoading(false);
  });
}, []);

• Purpose: Synchronizes the current swarm and their corresponding audio scenes.
• Process:
  1. Check for Existence: Returns early if there are no saved bee audio scenes.
  2. Fetch Active Bees: Requests active bee data from the server.
  3. Update State:
     • Sets the current swarm.
     • Updates or initializes bee audio scenes.
     • Swaps all bee audio scenes.
  4. Set Loading: Marks loading as complete.

Return Value

return { loading };

• loading: Boolean indicating whether data is still loading.

Summary

The useApp hook effectively manages the lifecycle and synchronization of bee audio scenes with active bees. 🐝 Through a combination of custom hooks and React's built-in features, it ensures that the application state reflects the current environment accurately and efficiently.