OneSiteAi - Complete Development Master Plan 🚀

📋 Table of Contents

1. Project Overview
2. Phase 1: Foundation & Setup
3. Phase 2: Frontend Development
4. Phase 3: Backend Development
5. Phase 4: AI Integration
6. Phase 5: Advanced Features
7. Phase 6: Testing & Optimization
8. Phase 7: Deployment & Launch
9. Design System & UI Components
10. Database Schema
11. API Endpoints
12. Timeline & Milestones

---

🎯 Project Overview

Product: OneSiteAi - AI-powered all-in-one business platform Target: Small to medium businesses, teams, entrepreneurs Core Features: Chat Agents, Workflow Automation, Knowledge Base, Team Collaboration

---

🏗️ Phase 1: Foundation & Setup

Duration: 1-2 weeks

1.1 Project Initialization

# Repository setup
✅ Create GitHub repository
✅ Setup project structure
✅ Initialize Git with proper .gitignore
✅ Add README, LICENSE, CONTRIBUTING.md

1.2 Development Environment

# Frontend Setup (Next.js)
mkdir frontend
cd frontend
npx create-next-app@latest . --typescript --tailwind --eslint --app
npm install lucide-react framer-motion @headlessui/react
npm install @hookform/resolvers react-hook-form zod
npm install zustand axios swr

# Backend Setup (Node.js + Express)
mkdir backend
cd backend
npm init -y
npm install express cors helmet morgan compression
npm install mongoose bcryptjs jsonwebtoken passport passport-jwt
npm install @types/express @types/node typescript ts-node nodemon -D

1.3 Configuration Files

• TypeScript configs for both frontend & backend
• ESLint & Prettier setup
• Environment variables structure
• Docker configuration (optional)

---

🎨 Phase 2: Frontend Development

Duration: 4-6 weeks

2.1 Design System Setup

// Create design tokens
const designTokens = {
  colors: {
    primary: { 50: '#f0f9ff', 500: '#3b82f6', 900: '#1e3a8a' },
    secondary: { 50: '#fdf4ff', 500: '#a855f7', 900: '#581c87' },
    success: { 500: '#10b981' },
    warning: { 500: '#f59e0b' },
    error: { 500: '#ef4444' }
  },
  typography: {
    fontFamily: ['Inter', 'system-ui', 'sans-serif'],
    fontSize: { sm: '14px', base: '16px', lg: '18px', xl: '24px' }
  },
  spacing: { xs: '4px', sm: '8px', md: '16px', lg: '24px', xl: '32px' }
}

2.2 Core UI Components

Week 1-2: Basic Components

// components/ui/
├── Button.tsx           // Primary, secondary, outline variants
├── Input.tsx            // Text, email, password, textarea
├── Card.tsx             // Content containers
├── Modal.tsx            // Dialog, confirmation modals
├── Badge.tsx            // Status indicators
├── Avatar.tsx           // User profile images
├── Skeleton.tsx         // Loading states
├── Spinner.tsx          // Loading indicators
├── Alert.tsx            // Success, warning, error messages
└── Tooltip.tsx          // Hover information

Week 3: Advanced Components

// components/ui/
├── Dropdown.tsx         // Select menus
├── Tabs.tsx             // Tab navigation
├── Accordion.tsx        // Collapsible content
├── DataTable.tsx        // Tables with sorting/filtering
├── Pagination.tsx       // Page navigation
├── SearchInput.tsx      // Search with autocomplete
├── FileUpload.tsx       // Drag & drop file upload
└── Chart.tsx            // Data visualization

2.3 Layout Components

// components/layout/
├── Navbar.tsx           // Top navigation
├── Sidebar.tsx          // Side navigation
├── Footer.tsx           // Page footer
├── Breadcrumb.tsx       // Navigation breadcrumbs
├── PageHeader.tsx       // Page titles & actions
└── Container.tsx        // Content wrapper

2.4 Page Development

2.4.1 Public Pages

Landing Page (/) - Week 1

// pages/index.tsx
sections: [
  'Hero Section',           // Value proposition, CTA
  'Features Overview',      // Core features grid
  'How It Works',          // 3-step process
  'Testimonials',          // Social proof
  'Pricing Preview',       // Basic pricing info
  'CTA Section'            // Get started now
]

components: [
  'HeroSection.tsx',
  'FeatureGrid.tsx', 
  'ProcessSteps.tsx',
  'TestimonialCarousel.tsx',
  'PricingCards.tsx',
  'CTASection.tsx'
]

About Page (/about) - Week 1

sections: [
  'Company Story',         // Mission, vision
  'Team Section',          // Founder/team profiles
  'Values & Culture',      // Company values
  'Contact Information'    // Location, contact
]

Features Page (/features) - Week 2

sections: [
  'Features Hero',         // Overview of all features
  'Chat Agents Detail',    // AI chat capabilities
  'Workflow Automation',   // Process automation
  'Knowledge Base',        // Information management
  'Team Collaboration',    // Collaboration tools
  'Integration Gallery'    // Third-party integrations
]

Pricing Page (/pricing) - Week 2

sections: [
  'Pricing Hero',          // Pricing philosophy
  'Plans Comparison',      // Feature comparison table
  'FAQ Section',           // Common pricing questions
  'Enterprise Contact'     // Custom enterprise plans
]

plans: [
  'Starter ($9/month)',    // Basic features
  'Professional ($29/month)', // Advanced features
  'Enterprise (Custom)'    // Full features + support
]

Blog (/blog) - Week 3

// Blog system with:
├── BlogList.tsx         // Article listing
├── BlogPost.tsx         // Individual articles
├── BlogCategories.tsx   // Category filtering
├── BlogSearch.tsx       // Article search
└── BlogSidebar.tsx      // Related articles, tags

2.4.2 Authentication Pages

Login Page (/login) - Week 3

// pages/auth/login.tsx
features: [
  'Email/Password login',
  'Google OAuth',
  'Remember me checkbox',
  'Forgot password link',
  'Sign up redirect'
]

Register Page (/register) - Week 3

// pages/auth/register.tsx
features: [
  'Full name, email, password',
  'Password strength indicator',
  'Terms acceptance',
  'Email verification',
  'Login redirect'
]

Forgot Password (/forgot-password) - Week 3

features: [
  'Email input',
  'Reset email sending',
  'Success message',
  'Login page redirect'
]

2.4.3 Dashboard Pages

Main Dashboard (/dashboard) - Week 4

// pages/dashboard/index.tsx
sections: [
  'Welcome Header',        // User greeting, notifications
  'Quick Stats',           // Key metrics cards
  'Recent Activity',       // Latest actions/events
  'Quick Actions',         // Common tasks shortcuts
  'AI Insights',           // AI-powered recommendations
  'Team Activity'          // Collaborative updates
]

components: [
  'DashboardHeader.tsx',
  'StatsCards.tsx',
  'ActivityFeed.tsx',
  'QuickActions.tsx',
  'AIInsights.tsx'
]

Chat Agents (/dashboard/agents) - Week 4

// pages/dashboard/agents/
├── index.tsx            // Agents list
├── create.tsx           // Create new agent
├── [id].tsx             // Agent details/edit
└── chat/[id].tsx        // Chat interface

features: [
  'Agent creation wizard',
  'Pre-built templates',
  'Custom training data',
  'Chat interface',
  'Performance analytics'
]

Workflows (/dashboard/workflows) - Week 5

// pages/dashboard/workflows/
├── index.tsx            // Workflows list
├── create.tsx           // Workflow builder
├── [id].tsx             // Workflow details
└── runs/[id].tsx        // Execution history

features: [
  'Visual workflow builder',
  'Drag & drop interface',
  'Trigger configuration',
  'Action steps',
  'Execution monitoring'
]

Knowledge Base (/dashboard/knowledge) - Week 5

// pages/dashboard/knowledge/
├── index.tsx            // Knowledge base overview
├── articles/            // Article management
├── categories/          // Category management
├── search.tsx           // Advanced search
└── analytics.tsx        // Usage analytics

features: [
  'Article editor (WYSIWYG)',
  'Category organization',
  'Full-text search',
  'Version control',
  'Access permissions'
]

Team Management (/dashboard/team) - Week 6

// pages/dashboard/team/
├── index.tsx            // Team overview
├── members.tsx          // Member management
├── roles.tsx            // Role permissions
├── invitations.tsx      // Pending invitations
└── activity.tsx         // Team activity log

features: [
  'Member invitation system',
  'Role-based permissions',
  'Activity monitoring',
  'Team analytics',
  'Communication tools'
]

Settings (/dashboard/settings) - Week 6

// pages/dashboard/settings/
├── profile.tsx          // Personal profile
├── account.tsx          // Account settings
├── billing.tsx          // Subscription & billing
├── integrations.tsx     // Third-party connections
├── api-keys.tsx         // API key management
└── security.tsx         // Security settings

features: [
  'Profile management',
  'Password change',
  'Billing information',
  'Integration management',
  'Security settings'
]

---

⚙️ Phase 3: Backend Development

Duration: 4-5 weeks

3.1 Server Setup & Configuration

// src/app.ts - Express server setup
import express from 'express';
import cors from 'cors';
import helmet from 'helmet';
import morgan from 'morgan';
import compression from 'compression';

const app = express();

// Middleware setup
app.use(helmet());
app.use(cors());
app.use(compression());
app.use(morgan('combined'));
app.use(express.json({ limit: '10mb' }));
app.use(express.urlencoded({ extended: true }));

3.2 Database Schema Design

// MongoDB Collections

// Users Collection
interface User {
  _id: ObjectId;
  email: string;
  password: string; // hashed
  firstName: string;
  lastName: string;
  avatar?: string;
  role: 'user' | 'admin';
  plan: 'starter' | 'professional' | 'enterprise';
  subscription: {
    status: 'active' | 'inactive' | 'cancelled';
    currentPeriodStart: Date;
    currentPeriodEnd: Date;
    customerId?: string; // Stripe customer ID
  };
  settings: {
    notifications: boolean;
    emailUpdates: boolean;
    timezone: string;
  };
  createdAt: Date;
  updatedAt: Date;
}

// Chat Agents Collection
interface ChatAgent {
  _id: ObjectId;
  userId: ObjectId;
  name: string;
  description: string;
  avatar?: string;
  type: 'customer_support' | 'sales' | 'general' | 'custom';
  configuration: {
    model: 'gpt-3.5-turbo' | 'gpt-4';
    temperature: number;
    maxTokens: number;
    systemPrompt: string;
    knowledgeBaseIds: ObjectId[];
  };
  metrics: {
    totalConversations: number;
    averageResponseTime: number;
    satisfactionScore: number;
  };
  isActive: boolean;
  createdAt: Date;
  updatedAt: Date;
}

// Conversations Collection
interface Conversation {
  _id: ObjectId;
  agentId: ObjectId;
  userId?: ObjectId; // null for anonymous users
  sessionId: string;
  messages: {
    role: 'user' | 'assistant';
    content: string;
    timestamp: Date;
    metadata?: any;
  }[];
  status: 'active' | 'resolved' | 'escalated';
  satisfaction?: 1 | 2 | 3 | 4 | 5;
  createdAt: Date;
  updatedAt: Date;
}

// Workflows Collection
interface Workflow {
  _id: ObjectId;
  userId: ObjectId;
  name: string;
  description: string;
  trigger: {
    type: 'webhook' | 'schedule' | 'manual' | 'email';
    configuration: any;
  };
  steps: {
    id: string;
    type: 'action' | 'condition' | 'delay';
    configuration: any;
    connections: string[];
  }[];
  isActive: boolean;
  metrics: {
    totalRuns: number;
    successfulRuns: number;
    lastRun?: Date;
    averageExecutionTime: number;
  };
  createdAt: Date;
  updatedAt: Date;
}

// Knowledge Base Collections
interface KnowledgeBase {
  _id: ObjectId;
  userId: ObjectId;
  name: string;
  description: string;
  type: 'public' | 'private' | 'team';
  categories: ObjectId[];
  settings: {
    allowSearch: boolean;
    autoIndex: boolean;
    embedModel: string;
  };
  createdAt: Date;
  updatedAt: Date;
}

interface Article {
  _id: ObjectId;
  knowledgeBaseId: ObjectId;
  categoryId: ObjectId;
  title: string;
  content: string;
  summary: string;
  tags: string[];
  author: ObjectId;
  status: 'draft' | 'published' | 'archived';
  version: number;
  embedding?: number[]; // AI embeddings for search
  metadata: {
    viewCount: number;
    helpfulVotes: number;
    lastUpdated: Date;
  };
  createdAt: Date;
  updatedAt: Date;
}

3.3 API Routes Structure

// routes/
├── auth.ts              // Authentication routes
├── users.ts             // User management
├── agents.ts            // Chat agents CRUD
├── conversations.ts     // Chat conversations
├── workflows.ts         // Workflow management
├── knowledge.ts         // Knowledge base
├── articles.ts          // Article management
├── team.ts              // Team management
├── billing.ts           // Subscription & billing
├── integrations.ts      // Third-party integrations
├── analytics.ts         // Usage analytics
└── admin.ts             // Admin-only routes

3.4 Authentication & Security

// middleware/auth.ts
import jwt from 'jsonwebtoken';
import bcrypt from 'bcryptjs';
import passport from 'passport';
import { Strategy as JwtStrategy } from 'passport-jwt';

// JWT Authentication
const jwtStrategy = new JwtStrategy({
  jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
  secretOrKey: process.env.JWT_SECRET
}, async (payload, done) => {
  // User verification logic
});

// Rate limiting
import rateLimit from 'express-rate-limit';
const apiLimiter = rateLimit({
  windowMs: 15 * 60 * 1000, // 15 minutes
  max: 100 // limit each IP to 100 requests per windowMs
});

3.5 API Endpoints Documentation

Authentication Endpoints

POST /api/auth/register      // User registration
POST /api/auth/login         // User login
POST /api/auth/refresh       // Token refresh
POST /api/auth/logout        // User logout
POST /api/auth/forgot-password // Password reset request
POST /api/auth/reset-password  // Password reset
GET  /api/auth/verify-email    // Email verification

User Management

GET    /api/users/profile    // Get user profile
PUT    /api/users/profile    // Update profile
PUT    /api/users/password   // Change password
DELETE /api/users/account    // Delete account
GET    /api/users/subscription // Get subscription info
POST   /api/users/upgrade    // Upgrade subscription

Chat Agents

GET    /api/agents           // List user's agents
POST   /api/agents           // Create new agent
GET    /api/agents/:id       // Get agent details
PUT    /api/agents/:id       // Update agent
DELETE /api/agents/:id       // Delete agent
POST   /api/agents/:id/chat  // Send message to agent
GET    /api/agents/:id/conversations // Get conversations
GET    /api/agents/:id/analytics     // Get agent metrics

Workflows

GET    /api/workflows        // List workflows
POST   /api/workflows        // Create workflow
GET    /api/workflows/:id    // Get workflow
PUT    /api/workflows/:id    // Update workflow
DELETE /api/workflows/:id    // Delete workflow
POST   /api/workflows/:id/execute // Manual execution
GET    /api/workflows/:id/runs    // Execution history

Knowledge Base

GET    /api/knowledge        // List knowledge bases
POST   /api/knowledge        // Create knowledge base
GET    /api/knowledge/:id    // Get knowledge base
PUT    /api/knowledge/:id    // Update knowledge base
DELETE /api/knowledge/:id    // Delete knowledge base

GET    /api/knowledge/:id/articles    // List articles
POST   /api/knowledge/:id/articles    // Create article
GET    /api/articles/:id              // Get article
PUT    /api/articles/:id              // Update article
DELETE /api/articles/:id              // Delete article
POST   /api/knowledge/search          // Search articles

---

🤖 Phase 4: AI Integration

Duration: 3-4 weeks

4.1 AI Service Setup

// services/ai/
├── openai.ts            // OpenAI API integration
├── embeddings.ts        // Text embeddings for search
├── chatCompletion.ts    // Chat completions
├── knowledgeProcessor.ts // Knowledge base processing
└── workflowAI.ts        // AI-powered workflow suggestions

4.2 Chat Agent Implementation

// AI Chat Agent Features
features: [
  'Multi-model support (GPT-3.5, GPT-4)',
  'Custom training data integration',
  'Context awareness',
  'Knowledge base integration',
  'Conversation memory',
  'Sentiment analysis',
  'Auto-escalation to humans',
  'Multi-language support'
]

4.3 Knowledge Base AI Features

// AI-Powered Knowledge Features
features: [
  'Automatic content summarization',
  'Smart tagging and categorization',
  'Semantic search with embeddings',
  'Content recommendations',
  'Duplicate content detection',
  'Auto-generated FAQ from articles',
  'Content quality scoring'
]

---

🚀 Phase 5: Advanced Features

Duration: 2-3 weeks

5.1 Real-time Features

// WebSocket implementation for:
features: [
  'Live chat conversations',
  'Real-time workflow execution status',
  'Team collaboration updates',
  'System notifications',
  'Live agent performance metrics'
]

5.2 Analytics & Reporting

// Analytics Dashboard
components: [
  'User engagement metrics',
  'Agent performance analytics',
  'Workflow execution statistics',
  'Knowledge base usage',
  'Team productivity insights',
  'Custom report builder'
]

5.3 Integration Marketplace

// Third-party Integrations
integrations: [
  'Slack/Discord webhooks',
  'Google Workspace integration',
  'Zapier connectivity',
  'CRM systems (HubSpot, Salesforce)',
  'Email marketing platforms',
  'Calendar applications',
  'File storage (Google Drive, Dropbox)'
]

---

🧪 Phase 6: Testing & Optimization

Duration: 2 weeks

6.1 Testing Strategy

// Testing Pyramid
├── Unit Tests (70%)      // Components, functions, utilities
├── Integration Tests (20%) // API endpoints, database operations
└── E2E Tests (10%)       // Critical user journeys

6.2 Performance Optimization

// Frontend Optimization
optimizations: [
  'Code splitting and lazy loading',
  'Image optimization',
  'Bundle size reduction',
  'Caching strategies',
  'CDN integration'
]

// Backend Optimization
optimizations: [
  'Database query optimization',
  'Caching layers (Redis)',
  'API response compression',
  'Rate limiting',
  'Background job processing'
]

---

🌐 Phase 7: Deployment & Launch

Duration: 1-2 weeks

7.1 Production Setup

// Deployment Architecture
architecture: {
  frontend: 'Vercel/Netlify',
  backend: 'Railway/Render/DigitalOcean',
  database: 'MongoDB Atlas/PlanetScale',
  cdn: 'Cloudflare',
  monitoring: 'Sentry/LogRocket',
  analytics: 'Google Analytics/Mixpanel'
}

7.2 Launch Checklist

checklist: [
  '✅ Security audit completed',
  '✅ Performance testing passed',
  '✅ SEO optimization done',
  '✅ SSL certificates configured',
  '✅ Backup systems in place',
  '✅ Monitoring alerts set up',
  '✅ Documentation updated',
  '✅ Support system ready'
]

---

🎨 Design System & UI Components

Color Palette

/* Primary Colors */
--primary-50: #eff6ff;
--primary-100: #dbeafe;
--primary-500: #3b82f6;
--primary-600: #2563eb;
--primary-900: #1e3a8a;

/* Secondary Colors */
--secondary-50: #fdf4ff;
--secondary-500: #a855f7;
--secondary-900: #581c87;

/* Status Colors */
--success: #10b981;
--warning: #f59e0b;
--error: #ef4444;
--info: #06b6d4;

Typography Scale

/* Font Families */
--font-primary: 'Inter', system-ui, sans-serif;
--font-mono: 'JetBrains Mono', monospace;

/* Font Sizes */
--text-xs: 0.75rem;    /* 12px */
--text-sm: 0.875rem;   /* 14px */
--text-base: 1rem;     /* 16px */
--text-lg: 1.125rem;   /* 18px */
--text-xl: 1.25rem;    /* 20px */
--text-2xl: 1.5rem;    /* 24px */
--text-3xl: 1.875rem;  /* 30px */
--text-4xl: 2.25rem;   /* 36px */

Component Specifications

// Button Variants
button: {
  sizes: ['sm', 'md', 'lg'],
  variants: ['primary', 'secondary', 'outline', 'ghost', 'destructive'],
  states: ['default', 'hover', 'active', 'disabled', 'loading']
}

// Input Components
input: {
  types: ['text', 'email', 'password', 'textarea', 'select', 'multiselect'],
  states: ['default', 'focused', 'error', 'disabled'],
  sizes: ['sm', 'md', 'lg']
}

// Card Components
card: {
  variants: ['default', 'outlined', 'elevated'],
  padding: ['sm', 'md', 'lg'],
  corners: ['rounded', 'square']
}

---

📅 Timeline & Milestones

Development Timeline (16-20 weeks total)

Month 1: Foundation (Weeks 1-4)

• Week 1: Project setup, repository, basic configuration
• Week 2: Design system, UI components library
• Week 3: Authentication pages, basic routing
• Week 4: Public pages (landing, about, features, pricing)

Month 2: Core Frontend (Weeks 5-8)

• Week 5: Dashboard layout, navigation
• Week 6: Chat agents interface
• Week 7: Workflow builder UI
• Week 8: Knowledge base frontend

Month 3: Backend Development (Weeks 9-12)

• Week 9: Server setup, database schema
• Week 10: Authentication & user management APIs
• Week 11: Chat agents & conversations APIs
• Week 12: Workflows & knowledge base APIs

Month 4: AI Integration (Weeks 13-16)

• Week 13: OpenAI integration, chat completions
• Week 14: Knowledge base AI features
• Week 15: Workflow automation intelligence
• Week 16: Testing, debugging, optimization

Month 5: Polish & Launch (Weeks 17-20)

• Week 17: Advanced features, integrations
• Week 18: Comprehensive testing
• Week 19: Performance optimization, security
• Week 20: Deployment, launch preparation

Key Milestones

milestones: [
  {
    name: 'MVP Frontend Complete',
    week: 8,
    deliverables: ['All core pages', 'Authentication flow', 'Basic UI components']
  },
  {
    name: 'Backend API Complete', 
    week: 12,
    deliverables: ['All endpoints', 'Database integration', 'Authentication system']
  },
  {
    name: 'AI Integration Complete',
    week: 16, 
    deliverables: ['Chat agents working', 'Knowledge base AI', 'Basic workflows']
  },
  {
    name: 'Beta Launch Ready',
    week: 20,
    deliverables: ['Full platform functional', 'Testing complete', 'Deployed to production']
  }
]

---

📊 Success Metrics

Technical KPIs

• Page Load Speed: < 2 seconds
• API Response Time: < 200ms average
• Uptime: 99.9% availability
• Test Coverage: > 80%

User Experience KPIs

• User Onboarding: < 5 minutes to first value
• Feature Adoption: > 60% of users try core features
• User Retention: > 70% monthly active users
• Customer Satisfaction: > 4.5/5 rating

Business KPIs

• User Growth: 100+ beta users in first month
• Feature Usage: Chat agents most used feature
• Support Tickets: < 5% of users need support
• Conversion Rate: > 15% trial to paid conversion

This comprehensive plan will guide you through building a professional, scalable, and user-friendly OneSiteAi platform. Each phase builds upon the previous one, ensuring a solid foundation while maintaining development momentum.