AI Document Generator

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Overview

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What it does (Capabilities)

• Document creation and editing: Create new documents, edit content in rich-text/HTML/Markdown editors, and manage updates.
• Template library: Browse and fetch predefined templates for common document types (e.g., resumes, reports).
• AI generation: Generate document content via OpenAI-powered endpoints.
• Document storage & retrieval: Persist documents to MongoDB; fetch by ID.
• Chat history storage: Save and retrieve chat interactions related to AI generation.
• Session-based access control: Validate access via session middleware and server-side checks.
• Export utilities: Utilities for exporting or transforming content.

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User Flows

• Start from a template: Select a template → open in editor → customize and save.
• Create from scratch: Open a blank editor → compose content → save as a new document.
• AI-assisted creation: Provide prompts/inputs → trigger generation → refine in the editor → save.
• Revisit or share: Open existing document by ID → edit or export as needed.
• Review history: Retrieve chat history for context and iteration.

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Architecture

• UI (Next.js App Router): Pages under app/ render the editor, template browsing, and session-aware views. Editors include rich-text, HTML, Markdown, and specialized layouts.
• API routes (Next.js): REST-like endpoints under app/api/ handle templates, documents, generation, chat history, auth checks, and health checks.
• Data store (MongoDB via Mongoose): Models in models/ define User, Document, Template, and ChatHistory.
• External services (OpenAI): AI generation and health checks via OpenAI API.
• Session layer (iron-session): Session options and helpers in app/config/ironOption.tsx and app/config/withSession.tsx; middleware.ts supports session-aware routing.
• Utilities and export: Helpers in lib/ for export, utils, and Mongo connection URIs. HTML template helpers in html/.

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Technical Design

• Editors: Rich text, Markdown, HTML, font size selector, two-column layout.
• Templates module: Catalog of TypeScript/TSX templates with API access.
• Documents module: CRUD operations over documents.
• AI generation module: Integrates with OpenAI; health checks.
• Chat history module: Stores and fetches interactions.
• Session & access control: Iron Session config; access enforcement.
• Data access layer: Mongo connection pooling and helper functions.
• Security & validation: Session-based auth, scoped access checks.
• Pipelines: Not applicable.

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API Reference

• GET /api/templates - List or fetch available templates.
• POST /api/generate - Generate content via OpenAI.
• GET /api/check-openai - Health check for OpenAI.
• GET /api/documents - List/query documents.
• POST /api/documents - Create a document.
• GET /api/documents/[id] - Retrieve a document.
• PATCH /api/documents/[id] - Update a document.
• DELETE /api/documents/[id] - Delete a document.
• GET /api/chat-history - Retrieve chat history.
• POST /api/chat-history - Store chat history.
• GET /api/auth/check-access - Validate session-based access.

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Data and Schemas (Conceptual)

• User: Authenticated session owner.
• Template: Metadata and content for predefined structures.
• Document: Saved artifact of user content.
• ChatHistory: AI prompts/responses for context and iteration.

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Troubleshooting

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Troubleshooting Guide

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Tech Stack

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Best Practices

• Scope all data by session.
• Reuse MongoDB connections.
• Validate input before persisting.
• Include template structure in AI prompts.
• Stick to one editor mode per document.
• Paginate and index lists/histories.
• Fail fast on external calls.
• Prefer idempotent updates.