fey888/diary-ai-app

How fey888/diary-ai-app works

Diary AI is a NestJS backend where clients authenticate, create and manage private paginated diaries, then request or retrieve a structured AI analysis. The analysis service checks ownership, reuses saved results, coordinates a per-diary lock, calls the AI service, and saves the result. The graph preserves account/profile, diary, and analysis stages plus their persistence and OpenAI integration. Edges follow excerpts or README documentation; some runtime wiring and unsampled implementations are represented only at the documented subsystem level.

Main entry points: app.module.ts NestJS Runtime · diary.service.ts Diary CRUD and Lock · diary_analysis.service.ts Analysis Orchestration · auth.controller.ts Auth Endpoints

Components 17

Identity and Users

Auth Endpoints src/auth/auth.controller.ts
JWT and Auth src/auth/auth.service.ts
Token Validation src/auth/strategy/access-token.strategy.ts
User Endpoints src/users/users.controller.ts
User Profiles src/users/users.service.ts
User Records src/users/entities/user.entity.ts

Diary Management

Diary Endpoints src/diary/diary.controller.ts
Diary CRUD and Lock src/diary/diary.service.ts
Diary Records src/diary/entities/diary.entity.ts

AI Analysis

Analysis Endpoints src/diary_analysis/diary_analysis.controller.ts
Analysis Orchestration src/diary_analysis/diary_analysis.service.ts
Analysis Records src/diary_analysis/entities/diary_analysis.entity.ts
OpenAI Client src/ai/ai.service.ts

API Runtime

NestJS Runtime src/app.module.ts

Other components

Client
OpenAI API
PostgreSQL

Connections 23

Client → Auth Endpoints: signs up or in src/auth/auth.controller.ts
Auth Endpoints → JWT and Auth: delegates auth src/auth/auth.controller.ts
JWT and Auth → User Profiles: looks up and updates src/auth/auth.service.ts
Auth Endpoints → Token Validation: guards refresh requests src/auth/auth.controller.ts
Client → User Endpoints: manages profile src/users/users.controller.ts
User Endpoints → User Profiles: delegates profile src/users/users.controller.ts
User Profiles → PostgreSQL: reads and writes README.md
Client → Diary Endpoints: manages diaries src/diary/diary.controller.ts
Diary Endpoints → Diary CRUD and Lock: delegates CRUD src/diary/diary.controller.ts
Diary CRUD and Lock → User Profiles: resolves owner src/diary/diary.service.ts
Diary CRUD and Lock → PostgreSQL: reads and writes README.md
Client → Analysis Endpoints: requests analysis src/diary_analysis/diary_analysis.controller.ts
Analysis Endpoints → Analysis Orchestration: delegates analysis src/diary_analysis/diary_analysis.controller.ts
Analysis Orchestration → Diary CRUD and Lock: checks and locks diary src/diary_analysis/diary_analysis.service.ts
Analysis Orchestration → OpenAI Client: analyzes diary text src/diary_analysis/diary_analysis.service.ts
Analysis Orchestration → PostgreSQL: loads and saves results src/diary_analysis/diary_analysis.service.ts
Diary CRUD and Lock → PostgreSQL: stores diary records README.md
OpenAI Client → OpenAI API: requests structured analysis README.md
NestJS Runtime → Auth Endpoints: registers auth module src/app.module.ts
NestJS Runtime → User Endpoints: registers users module src/app.module.ts
NestJS Runtime → Diary Endpoints: registers diary module src/app.module.ts
NestJS Runtime → Analysis Endpoints: registers analysis module src/app.module.ts
NestJS Runtime → PostgreSQL: configures TypeORM src/app.module.ts

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