/*
 * state.js
 * All mutable application state — loaded first so every other module
 * can read and write these globals without forward-reference issues.
 *
 * Provides:
 *   S              — main UI state (tree data, selection, loading flags)
 *   _plugins       — plugin manifest populated from GET /api/config
 *   _batchState    — current batch-processing progress
 *   _batchWs       — active WebSocket for batch push notifications (null when idle)
 *   _bnd           — live boundary-canvas state (written by canvas-boundary.js,
 *                    read by detail-render.js)
 *   _photoQueue    — photo queue session state (written by photo.js,
 *                    read by events.js)
 */

/* exported S */

// ── Main UI state ───────────────────────────────────────────────────────────
const S = {
  tree: null,
  expanded: new Set(),
  selected: null, // {type:'cabinet'|'shelf'|'book', id}
  _photoTarget: null, // {type, id}
  _loading: {}, // {`${pluginId}:${entityId}`: true}
  _cropMode: null, // {type, id} while crop UI is active
};

// ── Plugin registry ─────────────────────────────────────────────────────────
// eslint-disable-next-line prefer-const
let _plugins = []; // populated from GET /api/config

// ── Batch processing state ──────────────────────────────────────────────────
const _batchState = { running: false, total: 0, done: 0, errors: 0, current: '' };
// eslint-disable-next-line prefer-const
let _batchWs = null;

// ── Boundary canvas live state ───────────────────────────────────────────────
// Owned by canvas-boundary.js; declared here so detail-render.js can read it
// without a circular load dependency.
// eslint-disable-next-line prefer-const
let _bnd = null; // {wrap,img,canvas,axis,boundaries[],pluginResults{},selectedPlugin,segments[],nodeId,nodeType}

// ── Photo queue session state ────────────────────────────────────────────────
// Owned by photo.js; declared here so events.js can read/write it.
// eslint-disable-next-line prefer-const
let _photoQueue = null; // {books:[...], index:0, processing:false}

// ── AI blocks visibility ─────────────────────────────────────────────────────
// Per-book override map. If bookId is absent the default rule applies:
//   show when not user_approved, hide when user_approved.
const _aiBlocksVisible = {}; // {bookId: true|false}

// ── AI request log ───────────────────────────────────────────────────────────
// Populated from /ws/ai-log on page load.
// eslint-disable-next-line prefer-const
let _aiLog = []; // AiLogEntry[] — ring buffer, oldest first
// eslint-disable-next-line prefer-const
let _aiLogWs = null; // active WebSocket for AI log push (never closed)