# maarcadetweet

AT-Protocol-PDS in Rust + AppView + Tauri/Svelte-Desktop-Client.
Posts sind auf **160 Zeichen** limitiert (oldschool Twitter), erzwungen durch eigenes Lexicon `app.twi.post`.

## Architektur

```
crates/
├── at-lexicon/    Lexicon-Schemas + 160-Char-Validierung
├── at-crypto/     k256, p256, CID, multibase, JWT, PLC-Ops, Repo-Signing
├── at-identity/   DID, PLC, Handle-Resolution
├── at-mst/        Merkle-Search-Tree
├── at-repo/       Repos, Commits, Blöcke, TID-Revs
├── at-blob/       S3-kompatibler Blob-Store (MinIO)
├── at-firehose/   Jetstream-Consumer (WebSocket)
├── at-shared/     Config, Errors, DID, Cursor
├── pds-server/    axum HTTP PDS (bin)
└── appview/       Jetstream-Indexer + REST-API (bin)

crates/tauri-app/       Tauri 2 + Svelte 5 + Vite + TS Desktop-Client
  ├── src/              Svelte-Components (Terminal, StatusBar, NavRail, PostCard, ComposeBox, LoginScreen)
  ├── src/lib/styles/   tokens.css (1:1 vom maarcade-Design)
  └── src-tauri/        Rust-IPC-Layer

lexicons/app/twi/post.json     Custom Lexicon mit maxLength: 160
migrations/pds/                PDS-DB-Schema (users, repos, blobs, sessions, plc_ops)
migrations/appview/            AppView-DB-Schema (posts, likes, follows, timeline_cache, jetstream_cursor)
```

## Setup

```bash
# 1) Datenbanken + MinIO starten
docker compose up -d

# 2) Umgebungsvariablen
cp .env.example .env

# 3) Workspace kompilieren + Tests
cargo test --workspace
cargo check --workspace

# 4) Tauri-Frontend (Vite dev)
cd crates/tauri-app
npm install
npm run dev
# → http://127.0.0.1:1420

# 5) PDS / AppView (eigene Terminals)
cargo run -p pds-server
cargo run -p appview
```

## Status

| Phase | Stand |
|-------|-------|
| 0  Foundation, Workspace, Migrations, Lexicon, Crypto | ✅ done |
| 1  Identity (PLC-Ops vollständig signieren) | ⏳ TODO (JWT-PEM fehlt) |
| 2  MST + Repo (Spec-konforme CBOR-Encoding) | ⏳ Skelett steht |
| 3  PDS-Server (com.atproto.* XRPC) | ⏳ Skelett, nur Healthz |
| 4  AppView-Foundation (Jetstream-Index) | ⏳ Skelett |
| 5  AppView-REST-API | ⏳ Stubs |
| 6  Tauri-UI-Logik an Backend koppeln | ⏳ Stubs |
| 7  Polish (Tray, Notifications, Auto-Update) | ⏳ |

## Tests

```
running 12 tests (at-crypto)
test result: ok. 11 passed; 0 failed; 1 ignored
running 3 tests  (at-lexicon)
test result: ok. 3 passed; 0 failed
running 2 tests  (at-shared)
test result: ok. 2 passed; 0 failed
running 2 tests  (at-repo)
test result: ok. 2 passed; 0 failed
```

Der eine ignored Test (`jwt::issue_and_verify`) braucht noch einen ASN.1-SEC1-PEM-Encoder — geplant für Phase 1.

## Design

Orange Akzent, IBM Plex Mono, schwarzer Hintergrund mit 3%-Grid, Terminal-Fenster-Component mit blinkendem Cursor. Tokens sind 1:1 von `maarcade-shell/landing/assets/css/tokens.css` abgeleitet, plus zwei neue Repos-Tokens (`--cid-fg`, `--rev-fg`).