How cache-me/ai-agent works
<explanation>
1. Identify the project type and purpose
- This is a full‑stack web application starter built on Next.js (App Router), TypeScript, Shadcn UI + Tailwind, Prisma ORM, tRPC, and NextAuth for authentication.
- It also includes AI “agent” modules (chat, job, portfolio) under src/server/ai and supports email/SMS via src/lib.
2. Analyze the file structure
- Top‑level config: .eslintrc.js, tsconfig.json, docker/, prisma/schema.prisma, next.config.js, package.json.
- src/app: Next.js App Router layout, UI for authenticated vs. public, API route entrypoints (/api/auth/[...nextauth], /api/trpc/[trpc]).
- src/client/trpc: tRPC client & React Query integration.
- src/components/ui: shared UI primitives.
- src/lib: low‑level helpers (env, auth, email, sms, validation).
- src/server/api: tRPC server context & routers (user router).
- src/server/ai: AI “agent” services.
- src/server/db.ts & prisma/schema.prisma: database layer (PostgreSQL).
- docker/: containers for web (Next.js) and db (Postgres) via Docker Compose.
3. Examine README
- Confirms use of Bun, Next.js, Prisma, tRPC, Tailwind, Shadcn UI, NextAuth.
- No built‑in architecture diagram, so we must create one that covers all integrated pieces.
4. How to create the system design diagram
a. Main components
- Browser / Client
- Next.js Web Server (renders UI, handles SSR/SSG)
- NextAuth Auth Service
- tRPC API Layer
- Prisma / PostgreSQL Database
- AI Agent Modules (chat‑agent, job‑agent, portfolio‑manager)
- External Services: Email Provider, SMS Gateway, OpenAI API (or other AI backends)
- Infrastructure/Containers: Docker Compose network
b. Relationships & interactions
- Browser ↔ Next.js (HTTP/HTTPS) for page loads (SSR/SSG) and client‑side navigation
- UI Components → tRPC Client → tRPC Server API for data fetching/mutations
- tRPC Server → Prisma → PostgreSQL for all CRUD operations
- NextAuth (API route) → Database for session & user management
- AI‑related tRPC resolvers → src/server/ai modules → External AI API
- Background/email/SMS helpers invoked by server business logic → External email/SMS providers
c. Architectural patterns & design principles
- Layered architecture: Presentation (Next.js pages & UI) → API (tRPC routers & services) → Data (Prisma DB)
- Type‑safe contracts end‑to‑end (TypeScript + tRPC)
- Monolithic codebase with clear separation via folders (app, client, server, lib)
- Serverless‑style Next.js API Routes for Auth + tRPC
- Containerization with Docker Compose for dev & prod parity
d. Key technologies/frameworks
- Next.js App Router, React, TypeScript
- tRPC + React Query (for type‑safe RPC calls)
- NextAuth.js (authentication)
- Prisma ORM (PostgreSQL)
- Tailwind CSS + Shadcn UI (styling & component library)
- Bun (package manager & runtime)
- Docker / Docker Compose
- OpenAI (or equivalent) for AI Agents
- External email/SMS services
5. Tailoring the diagram for a full‑stack application
- Draw two main zones: Client‑side (browser) and Server‑side.
- In the Client: show Browser components (UI Shell, tRPC client, Auth flow).
- On the Server: sub‑divide into Web Server (Next.js SSR/SSG), Auth API, tRPC API.
- Show Database as a separate box; connect Prisma layer to it.
- Show AI Agents as internal micro‑services invoked by the tRPC API.
- Show external third‑party services (Email, SMS, OpenAI API).
- Surround server components with a “Docker Network” boundary, indicating that web and db run as containers.
6. Diagramming guidelines
- Use clear labels on each box (e.g., “Next.js App Server”, “tRPC Router”, “Prisma / PostgreSQL”).
- Directional arrows to indicate request/response or event flows.
* Browser → Next.js (page request)
* Browser → tRPC Client → tRPC Server → Prisma → PostgreSQL
* tRPC Server → AI Agents module → OpenAI API
* Server logic → Email/SMS provider
- Color code by category:
* Frontend (blue),
* Backend/API (green),
* Data Store (orange),
* External Services (gray).
- Use different shapes: rectangles for services, cylinder for database, cloud icons for external APIs.
7. Key pointers
- Show the App Router’s public vs. authenticated layout branching.
- Highlight the single source of truth for API contracts via tRPC.
- Indicate environment variables feeding into Docker and server config.
- Don’t over‑partition—focus on the main logical components and their integrations.
By following these steps, you’ll produce a detailed, accurate architecture diagram that clearly communicates the tech stack, data flows, and service dependencies of this Next.js full‑stack starter project.