import {
  EMPTY_HIT_STATS,
  EMPTY_VISITOR_STATS,
  DEFAULT_PUBLISH_STATE,
  DEFAULT_REPLY_TEMPLATES,
  buildDefaultPodcastChecklist,
} from './config.js'

export const state = {
  cachedSiteContent: null,
  cachedDraftSiteContent: null,
  publishState: { ...DEFAULT_PUBLISH_STATE },

  hitStats: { ...EMPTY_HIT_STATS },
  hitStatsWritePromise: Promise.resolve(),
  lastHitStatsWrite: { ok: true, at: null, error: null },

  visitorStats: { ...EMPTY_VISITOR_STATS },
  visitorStatsWritePromise: Promise.resolve(),
  lastVisitorStatsWrite: { ok: true, at: null, error: null },

  contactSubmissions: [],
  contactSubmissionsWritePromise: Promise.resolve(),

  questions: [],
  questionsWritePromise: Promise.resolve(),

  draftQuestions: null,
  draftQuestionsWritePromise: Promise.resolve(),

  replyTemplates: [...DEFAULT_REPLY_TEMPLATES],
  replyTemplatesWritePromise: Promise.resolve(),

  replyHistory: [],
  replyHistoryWritePromise: Promise.resolve(),

  podcastChecklist: buildDefaultPodcastChecklist(),
  podcastChecklistWritePromise: Promise.resolve(),

  studyUsers: [],
  studyUsersWritePromise: Promise.resolve(),

  studyCommunityPosts: [],
  studyCommunityWritePromise: Promise.resolve(),

  studyReminders: { users: {}, updatedAt: new Date().toISOString() },
  studyRemindersWritePromise: Promise.resolve(),

  studyComments: [],
  studyCommentsWritePromise: Promise.resolve(),

  studyCertificates: [],
  studyCertificatesWritePromise: Promise.resolve(),

  // episodeScripts: { [episodeNumber]: { text, title, filename, uploadedAt } }
  episodeScripts: {},
  episodeScriptsWritePromise: Promise.resolve(),

  downloadCounts: {},
  downloadCountsWritePromise: Promise.resolve(),

  // episodePlays: { [title]: { total: number, byDay: { [YYYY-MM-DD]: number } } }
  episodePlays: {},
  episodePlaysWritePromise: Promise.resolve(),

  // analyticsEvents: aggregated engagement data from frontend events
  // {
  //   scrollDepth: { [path]: { 25: n, 50: n, 75: n, 90: n } }
  //   timeOnPage: { [path]: { totalSeconds: n, count: n } }
  //   outboundClicks: { [url]: n }
  //   utmSources: { [utm_source]: n }
  //   searchQueries: { [query]: n }
  //   notFound: { [path]: n }
  //   audioEvents: { [title]: { pauses: n, completions: n, totalListenSeconds: n } }
  // }
  analyticsEvents: {
    scrollDepth: {},
    timeOnPage: {},
    outboundClicks: {},
    utmSources: {},
    searchQueries: {},
    notFound: {},
    audioEvents: {},
  },
  analyticsEventsWritePromise: Promise.resolve(),

  // qrCodes: Array<{ id, slug, label, destination, createdAt }>
  // qrScans: Array<{ id, qrId, slug, scannedAt, ip, userAgent }>
  qrCodes: [],
  qrScans: [],
  qrCodesWritePromise: Promise.resolve(),

  emailSettings: { signature: 'Grace and peace,\nVerse by Verse with Nate' },
  emailSettingsWritePromise: Promise.resolve(),

  calendarEvents: [],
  calendarEventsWritePromise: Promise.resolve(),

  auditLog: [],
  auditLogWritePromise: Promise.resolve(),

  webhooks: [],
  webhooksWritePromise: Promise.resolve(),

  lastBackupStatus: { ok: true, at: null, error: null, file: null },
  lastCachePurgeStatus: { ok: true, at: null, error: null },
  lastDeployHookStatus: { ok: true, at: null, error: null },

  // In-memory caches (not persisted between restarts)
  studyNotesCache: new Map(),          // userId -> { [sectionId]: string }
  studyNotesWriteQueues: new Map(),    // userId -> Promise
  studyProgressCache: new Map(),       // userId -> { byStudy: ... }
  studyProgressWriteQueues: new Map(), // userId -> Promise

  studySessions: new Map(),
  studyTotpPendingTokens: new Map(),
  emailOtpStore: new Map(),

  titusDownloadTokens: new Map(),
  contactSubmitCooldownByEmail: new Map(),
  resendEmailSubmissionIndex: new Map(),
}