deck-management

Deck Management

Decks are stored in the decks SQL table via Drizzle ORM. Each deck row contains the full deck JSON (slides, metadata) in a data TEXT column.

Schema

CREATE TABLE decks (
  id TEXT PRIMARY KEY,
  title TEXT NOT NULL,
  data TEXT NOT NULL,       -- Full deck JSON (slides array, metadata)
  created_at TEXT DEFAULT (current_timestamp),
  updated_at TEXT DEFAULT (current_timestamp)
);

Deck JSON Structure

The data column stores a JSON object:

{
  "title": "My Presentation",
  "slides": [
    {
      "id": "slide-1",
      "content": "<div class=\"fmd-slide\" style=\"...\">...</div>",
      "layout": "title"
    },
    {
      "id": "slide-2",
      "content": "<div class=\"fmd-slide\" style=\"...\">...</div>",
      "layout": "content"
    }
  ]
}

Each slide has an id, HTML content, and optional layout type.

Reading Decks

From scripts:

# List all decks (metadata only)
pnpm action list-decks

# Get a specific deck with all slides
pnpm action get-deck --id=<deckId>

# See what the user is looking at
pnpm action view-screen

From the API:

• GET /api/decks -- list all decks (returns id, title, slide count, timestamps)
• GET /api/decks/:id -- get a single deck with full data

Writing Decks

From scripts:

# Use db-exec to insert/update
pnpm action db-exec --sql "INSERT INTO decks (id, title, data) VALUES (?, ?, ?)" --params '["new-id", "Title", "{...}"]'

From the API:

• POST /api/decks -- create a new deck
• PUT /api/decks/:id -- update an existing deck
• DELETE /api/decks/:id -- delete a deck

Important Rules

1. Always use the API or Drizzle -- never write raw JSON files for deck storage
2. Deck IDs are stable -- once created, a deck's ID doesn't change
3. Slide IDs within a deck are stable -- used for referencing specific slides
4. The data column is the full source of truth -- title is duplicated at the top level for listing queries
5. SSE events (source: "resources") fire when decks change, keeping the UI in sync