/**
 * Application constants
 * Centralized configuration values to avoid magic numbers
 */

// ============================================================================
// UI Constants
// ============================================================================

export const UI = {
  /** Height reserved for header, filter bar, status bar, and padding */
  LAYOUT_OVERHEAD: 6,
  /** Minimum terminal height for proper display */
  MIN_TERMINAL_HEIGHT: 24,
  /** Default terminal height if detection fails */
  DEFAULT_TERMINAL_HEIGHT: 24,
  /** Maximum length for command output before truncation */
  OUTPUT_TRUNCATION_LENGTH: 50,
} as const;

// ============================================================================
// Scanner Constants
// ============================================================================

export const SCANNER = {
  /** Default maximum directory depth for scanning */
  DEFAULT_MAX_DEPTH: 2,
  /** Default concurrency for scanning operations */
  DEFAULT_CONCURRENCY: 5,
  /** Length of generated project IDs (MD5 hash truncation) */
  PROJECT_ID_LENGTH: 12,
  /** Default cache TTL in seconds */
  DEFAULT_CACHE_TTL_SECONDS: 300,
} as const;

// ============================================================================
// Git Constants
// ============================================================================

export const GIT = {
  /** Default remote name */
  DEFAULT_REMOTE: "origin",
  /** Default branch name */
  DEFAULT_BRANCH: "main",
  /** Default concurrency for git operations */
  DEFAULT_CONCURRENCY: 5,
  /** Higher concurrency for status refresh (read-only) */
  STATUS_REFRESH_CONCURRENCY: 10,
} as const;

export const GIT_TIMEOUTS = {
  CLONE: 120000,    // 2 minutes for clone
  PULL: 60000,      // 1 minute for pull
  PUSH: 60000,      // 1 minute for push
  FETCH: 60000,     // 1 minute for fetch
  STATUS: 10000,    // 10 seconds for status
} as const;

// ============================================================================
// GitHub API Constants
// ============================================================================

export const GITHUB_API = {
  /** Base URL for GitHub API */
  BASE_URL: "https://api.github.com",
  /** API version header */
  API_VERSION: "2022-11-28",
  /** Default page size for pagination */
  PAGE_SIZE: 100,
  /** Maximum retry attempts */
  MAX_RETRIES: 3,
  /** Initial retry delay in milliseconds */
  INITIAL_RETRY_DELAY: 1000,
  /** Maximum retry delay in milliseconds */
  MAX_RETRY_DELAY: 30000,
  /** Backoff multiplier for retries */
  RETRY_BACKOFF_FACTOR: 2,
} as const;

// ============================================================================
// Background Fetch Constants
// ============================================================================

export const BACKGROUND_FETCH = {
  /** Interval between background fetches in milliseconds (5 minutes) */
  INTERVAL_MS: 5 * 60 * 1000,
} as const;

// ============================================================================
// Type Exports
// ============================================================================

export type UIConstants = typeof UI;
export type ScannerConstants = typeof SCANNER;
export type GitConstants = typeof GIT;
export type GitTimeouts = typeof GIT_TIMEOUTS;
export type GitHubAPIConstants = typeof GITHUB_API;
export type BackgroundFetchConstants = typeof BACKGROUND_FETCH;