@kaifronsdal/transcript-viewer/src/lib/shared/constants.ts

A web-based viewer for AI conversation transcripts with rollback support

// Application constants

// Data loading
export const DEFAULT_TRANSCRIPT_DIR = './transcripts';
export const DEFAULT_CONCURRENCY = 10;
export const DEFAULT_PAGINATION_LIMIT = 50;

// Caching
export const MAX_FULL_TRANSCRIPTS_CACHE = 200;
export const CACHE_STATS_LOG_INTERVAL = 60000; // 1 minute

// UI constants  
export const DEFAULT_TABLE_ROW_HEIGHT = 50;
export const DEFAULT_TABLE_OVERSCAN = 10;
export const MAX_SUMMARY_LENGTH = 150;
export const MAX_JUDGE_SUMMARY_LENGTH = 100;

// File processing
export const TRANSCRIPT_FILE_EXTENSION = '.json';
export const MAX_FILE_READ_ATTEMPTS = 3;

// Virtualization
export const VIRTUAL_TABLE_HEIGHT = '70vh';
export const VIRTUAL_ITEM_SIZE = 50;

// Local storage keys
export const STORAGE_KEYS = {
  COLUMN_VISIBILITY: 'transcript-table-visible-columns',
  COLUMN_SIZING: 'transcript-table-column-sizing',
  VIEW_MODE: 'transcript-viewer-view-mode',
  FILTER_STATE: 'transcript-filter-state'
} as const;

// Score thresholds for coloring
export const SCORE_THRESHOLDS = {
  HIGH_CONCERN: 8,
  MEDIUM_CONCERN: 6, 
  LOW_CONCERN: 4,
  MINIMAL_CONCERN: 2
} as const;

// API timeouts (in milliseconds)
export const API_TIMEOUTS = {
  DEFAULT: 120000, // 2 minutes
  BULK_LOAD: 300000, // 5 minutes
  VALIDATION: 30000 // 30 seconds
} as const;

// Error messages
export const ERROR_MESSAGES = {
  GENERIC: 'An unexpected error occurred',
  FILE_NOT_FOUND: 'File not found',
  VALIDATION_FAILED: 'Schema validation failed',
  PERMISSION_DENIED: 'Permission denied',
  PARSE_ERROR: 'Failed to parse file',
  NETWORK_ERROR: 'Network error occurred'
} as const;