Front-End Modules
Front End

Front-End Development

Overview

The front-end of PDeck is responsible for providing an intuitive and responsive user interface. It communicates with the back-end through the API layer and handles real-time updates via WebSocket connections.

Key Components

  1. User Interface (UI): React-based components for rendering the application.
  2. State Management: Redux for managing application state.
  3. UI Components: Reusable React components for consistent design.
  4. Notification System: Real-time notifications for users.

Technology Stack

  • React.js for building the user interface
  • Redux for state management
  • Tailwind CSS for styling
  • Socket.io client for real-time communication

Implementation Guidelines

1. Setting Up the Project

Use Create React App or Next.js to set up the initial project structure. Install necessary dependencies:

npx create-react-app pdeck-frontend
cd pdeck-frontend
npm install redux react-redux @reduxjs/toolkit axios socket.io-client tailwindcss

2. Creating Core Components

Develop the following key components:

  • TaskList: Displays the prioritized list of tasks
  • TaskDetail: Shows detailed information about a specific task
  • PriorityDeck: Represents the main view of prioritized tasks
  • IntegrationSettings: Interface for managing external integrations
  • UserPreferences: Component for customizing user settings

3. Implementing State Management

Set up Redux store with slices for tasks, user preferences, and notifications:

// store.js
import { configureStore } from '@reduxjs/toolkit'
import tasksReducer from './slices/tasksSlice'
import preferencesReducer from './slices/preferencesSlice'
import notificationsReducer from './slices/notificationsSlice'
 
export const store = configureStore({
  reducer: {
    tasks: tasksReducer,
    preferences: preferencesReducer,
    notifications: notificationsReducer,
  },
})

4. Setting Up API Communication

Create an API service using Axios for communicating with the back-end:

// api.js
import axios from 'axios'
 
const api = axios.create({
  baseURL: 'https://api.pdeck.com/v1',
})
 
export const fetchTasks = () => api.get('/tasks')
export const updateTaskPriority = (taskId, priority) => api.put(`/tasks/${taskId}/priority`, { priority })
// Add more API calls as needed

5. Implementing Real-Time Updates

Set up Socket.io for real-time updates:

// socket.js
import io from 'socket.io-client'
 
const socket = io('https://api.pdeck.com')
 
socket.on('connect', () => {
  console.log('Connected to PDeck server')
})
 
socket.on('taskUpdate', (updatedTask) => {
  // Dispatch an action to update the task in Redux store
})
 
export default socket

6. Styling with Tailwind CSS

Configure Tailwind CSS and use it for styling components:

// Example component with Tailwind CSS
const TaskItem = ({ task }) => (
  <div className="p-4 bg-white shadow rounded-lg">
    <h3 className="text-lg font-semibold">{task.title}</h3>
    <p className="text-gray-600">{task.description}</p>
    <span className="inline-block px-2 py-1 mt-2 text-sm text-white bg-blue-500 rounded">
      Priority: {task.priority}
    </span>
  </div>
)

PDeck Advanced Front-End Implementation

Priority Deck Visualization

The Priority Deck is a core feature of PDeck. Let's implement an interactive and visually appealing representation of prioritized tasks.

// components/PriorityDeck.js
import React, { useEffect, useState } from 'react';
import { useSelector, useDispatch } from 'react-redux';
import { DragDropContext, Droppable, Draggable } from 'react-beautiful-dnd';
import { fetchTasks, updateTaskPriority } from '../slices/tasksSlice';
import TaskCard from './TaskCard';
 
const PriorityDeck = () => {
  const dispatch = useDispatch();
  const tasks = useSelector(state => state.tasks.items);
  const [localTasks, setLocalTasks] = useState([]);
 
  useEffect(() => {
    dispatch(fetchTasks());
  }, [dispatch]);
 
  useEffect(() => {
    setLocalTasks(tasks);
  }, [tasks]);
 
  const onDragEnd = (result) => {
    if (!result.destination) return;
 
    const items = Array.from(localTasks);
    const [reorderedItem] = items.splice(result.source.index, 1);
    items.splice(result.destination.index, 0, reorderedItem);
 
    setLocalTasks(items);
    dispatch(updateTaskPriority(reorderedItem.id, result.destination.index));
  };
 
  return (
    <DragDropContext onDragEnd={onDragEnd}>
      <Droppable droppableId="priorityDeck">
        {(provided) => (
          <div {...provided.droppableProps} ref={provided.innerRef} className="space-y-4">
            {localTasks.map((task, index) => (
              <Draggable key={task.id} draggableId={task.id} index={index}>
                {(provided) => (
                  <div
                    ref={provided.innerRef}
                    {...provided.draggableProps}
                    {...provided.dragHandleProps}
                  >
                    <TaskCard task={task} />
                  </div>
                )}
              </Draggable>
            ))}
            {provided.placeholder}
          </div>
        )}
      </Droppable>
    </DragDropContext>
  );
};
 
export default PriorityDeck;

Real-Time Task Updates

Implement real-time updates for tasks using Socket.io:

// components/RealTimeTaskUpdates.js
import React, { useEffect } from 'react';
import { useDispatch } from 'react-redux';
import socket from '../socket';
import { updateTask } from '../slices/tasksSlice';
 
const RealTimeTaskUpdates = () => {
  const dispatch = useDispatch();
 
  useEffect(() => {
    socket.on('taskUpdate', (updatedTask) => {
      dispatch(updateTask(updatedTask));
    });
 
    return () => {
      socket.off('taskUpdate');
    };
  }, [dispatch]);
 
  return null; // This component doesn't render anything
};
 
export default RealTimeTaskUpdates;

Integration Management Interface

Create an interface for managing external integrations:

// components/IntegrationManagement.js
import React, { useState, useEffect } from 'react';
import { useSelector, useDispatch } from 'react-redux';
import { fetchIntegrations, addIntegration, removeIntegration } from '../slices/integrationsSlice';
 
const IntegrationManagement = () => {
  const dispatch = useDispatch();
  const integrations = useSelector(state => state.integrations.items);
  const [newIntegration, setNewIntegration] = useState('');
 
  useEffect(() => {
    dispatch(fetchIntegrations());
  }, [dispatch]);
 
  const handleAddIntegration = () => {
    dispatch(addIntegration(newIntegration));
    setNewIntegration('');
  };
 
  const handleRemoveIntegration = (integrationId) => {
    dispatch(removeIntegration(integrationId));
  };
 
  return (
    <div className="space-y-4">
      <h2 className="text-2xl font-bold">Manage Integrations</h2>
      <div className="flex space-x-2">
        <input
          type="text"
          value={newIntegration}
          onChange={(e) => setNewIntegration(e.target.value)}
          className="flex-grow px-2 py-1 border rounded"
          placeholder="Integration name"
        />
        <button
          onClick={handleAddIntegration}
          className="px-4 py-2 text-white bg-blue-500 rounded hover:bg-blue-600"
        >
          Add
        </button>
      </div>
      <ul className="space-y-2">
        {integrations.map(integration => (
          <li key={integration.id} className="flex justify-between items-center p-2 bg-gray-100 rounded">
            <span>{integration.name}</span>
            <button
              onClick={() => handleRemoveIntegration(integration.id)}
              className="px-2 py-1 text-white bg-red-500 rounded hover:bg-red-600"
            >
              Remove
            </button>
          </li>
        ))}
      </ul>
    </div>
  );
};
 
export default IntegrationManagement;

Advanced Task Filtering and Sorting

Implement advanced filtering and sorting options for tasks:

// components/TaskFilters.js
import React, { useState } from 'react';
import { useDispatch } from 'react-redux';
import { setFilter, setSortOrder } from '../slices/tasksSlice';
 
const TaskFilters = () => {
  const dispatch = useDispatch();
  const [filterCriteria, setFilterCriteria] = useState('');
  const [sortCriteria, setSortCriteria] = useState('priority');
 
  const handleFilterChange = (e) => {
    setFilterCriteria(e.target.value);
    dispatch(setFilter(e.target.value));
  };
 
  const handleSortChange = (e) => {
    setSortCriteria(e.target.value);
    dispatch(setSortOrder(e.target.value));
  };
 
  return (
    <div className="flex space-x-4">
      <div>
        <label htmlFor="filter" className="block text-sm font-medium text-gray-700">Filter</label>
        <select
          id="filter"
          value={filterCriteria}
          onChange={handleFilterChange}
          className="mt-1 block w-full pl-3 pr-10 py-2 text-base border-gray-300 focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm rounded-md"
        >
          <option value="">All</option>
          <option value="high">High Priority</option>
          <option value="medium">Medium Priority</option>
          <option value="low">Low Priority</option>
        </select>
      </div>
      <div>
        <label htmlFor="sort" className="block text-sm font-medium text-gray-700">Sort By</label>
        <select
          id="sort"
          value={sortCriteria}
          onChange={handleSortChange}
          className="mt-1 block w-full pl-3 pr-10 py-2 text-base border-gray-300 focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm rounded-md"
        >
          <option value="priority">Priority</option>
          <option value="dueDate">Due Date</option>
          <option value="createdAt">Created Date</option>
        </select>
      </div>
    </div>
  );
};
 
export default TaskFilters;

Task Dependencies Visualization

Create a component to visualize task dependencies:

// components/TaskDependencies.js
import React from 'react';
import { useSelector } from 'react-redux';
import { Graph } from 'react-d3-graph';
 
const TaskDependencies = ({ taskId }) => {
  const tasks = useSelector(state => state.tasks.items);
  const task = tasks.find(t => t.id === taskId);
 
  if (!task) return null;
 
  const data = {
    nodes: [
      { id: task.id, color: '#FF6B6B' },
      ...task.dependencies.map(depId => ({ id: depId }))
    ],
    links: task.dependencies.map(depId => ({ source: task.id, target: depId }))
  };
 
  const config = {
    nodeHighlightBehavior: true,
    node: {
      color: 'lightblue',
      size: 120,
      highlightStrokeColor: 'blue'
    },
    link: {
      highlightColor: 'lightblue'
    }
  };
 
  return (
    <div className="h-64 w-full">
      <Graph
        id="task-dep-graph"
        data={data}
        config={config}
      />
    </div>
  );
};
 
export default TaskDependencies;

Performance Optimization

Implement performance optimizations using React.memo and useCallback:

// components/TaskList.js
import React, { useCallback } from 'react';
import { useSelector } from 'react-redux';
import TaskItem from './TaskItem';
 
const TaskList = React.memo(() => {
  const tasks = useSelector(state => state.tasks.items);
 
  const renderTask = useCallback((task) => (
    <TaskItem key={task.id} task={task} />
  ), []);
 
  return (
    <div className="space-y-4">
      {tasks.map(renderTask)}
    </div>
  );
});
 
export default TaskList;

Accessibility Enhancements

Improve accessibility with ARIA attributes and keyboard navigation:

// components/AccessibleTaskCard.js
import React, { useRef } from 'react';
 
const AccessibleTaskCard = ({ task, onSelect }) => {
  const ref = useRef(null);
 
  const handleKeyDown = (event) => {
    if (event.key === 'Enter' || event.key === ' ') {
      onSelect(task);
    }
  };
 
  return (
    <div
      ref={ref}
      role="button"
      tabIndex={0}
      onClick={() => onSelect(task)}
      onKeyDown={handleKeyDown}
      aria-label={`Task: ${task.title}`}
      className="p-4 bg-white shadow rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500"
    >
      <h3 className="text-lg font-semibold">{task.title}</h3>
      <p className="text-gray-600">{task.description}</p>
      <span className="inline-block px-2 py-1 mt-2 text-sm text-white bg-blue-500 rounded">
        Priority: {task.priority}
      </span>
    </div>
  );
};
 
export default AccessibleTaskCard;

These advanced front-end implementations build upon the basic structure we've already established. They focus on creating a more interactive and user-friendly interface for PDeck, leveraging the powerful backend capabilities we've developed.

Next Steps

  1. Implement comprehensive error handling and user feedback mechanisms.
  2. Develop advanced data visualization for task analytics and productivity insights.
  3. Create a theme system for easy customization of the UI.
  4. Implement progressive web app (PWA) features for offline capabilities.
  5. Add keyboard shortcuts for power users.
  6. Implement a tour or onboarding flow for new users.
  7. Develop a mobile-responsive design or separate mobile app.
Database and CachingKey User Flows