import {
  req,
  beacon,
  setupHeaders,
  getActiveAccount,
  HttpError,
  setActiveAccount,
  clearActiveAccount,
  setUnauthorizedHandler,
} from "./api/core";

// Re-export the shared HTTP machinery so consumers keep importing these from "./api" unchanged.
export {
  HttpError,
  getActiveAccount,
  setActiveAccount,
  clearActiveAccount,
  setUnauthorizedHandler,
};

// Domain modules split out of this file. Their TYPES are re-exported so consumers keep importing
// them from "./api" unchanged; their method slices stay internal (`export type *`, not `export *`)
// and reach consumers only through the `api` façade they're spread into below. Runtime value
// exports a domain genuinely owns (e.g. plex's EMPTY_PLEX_FILTERS/plexFilterCount) are re-exported
// explicitly.
import { downloadsApi } from "./api/downloads";
export type * from "./api/downloads";
import { plexApi } from "./api/plex";
export type * from "./api/plex";
export { EMPTY_PLEX_FILTERS, plexFilterCount } from "./api/plex";
import { messagingApi } from "./api/messaging";
export type * from "./api/messaging";

export interface Me {
  id: number;
  email: string;
  display_name: string | null;
  avatar_url: string | null;
  role: string;
  is_demo: boolean;
  has_google: boolean;
  has_password: boolean;
  google_enabled: boolean;
  plex_enabled: boolean;
  can_read: boolean;
  can_write: boolean;
  pending_invites: number;
  preferences: Record<string, unknown>;
}

export interface DemoWhitelistEntry {
  id: number;
  email: string;
  note: string | null;
  added_by: string | null;
  created_at: string | null;
}

export interface Invite {
  id: number;
  email: string;
  status: "pending" | "approved" | "denied";
  note: string | null;
  requested_at: string | null;
  decided_at: string | null;
  decided_by: string | null;
}

export interface Tag {
  id: number;
  name: string;
  color: string | null;
  category: string;
  system: boolean;
  channel_count: number;
}

// Per-user watch status stored server-side (VALID_STATES in routes/feed.py). "in_progress" and
// "unwatched" are NOT statuses — they're derived feed filters (status "new" + a resume position),
// so they never appear on the wire.
export type VideoStatus = "new" | "watched" | "hidden";

export interface Video {
  id: string;
  title: string | null;
  channel_id: string;
  channel_title: string | null;
  channel_thumbnail: string | null;
  channel_url: string;
  published_at: string | null;
  thumbnail_url: string | null;
  duration_seconds: number | null;
  view_count: number | null;
  is_short: boolean;
  live_status: string;
  status: VideoStatus;
  position_seconds: number;
  saved: boolean; // is the video in the user's built-in Watch later playlist
  watch_url: string;
}

export interface VideoDetail {
  id: string;
  description: string | null;
  like_count: number | null;
  in_db: boolean;
  channel_id: string | null;
  channel_title: string | null;
  published_at: string | null;
  view_count: number | null;
  duration_seconds: number | null;
}

interface ChannelLink {
  title: string | null;
  url: string;
}

export interface ChannelDetail {
  id: string;
  title: string | null;
  handle: string | null;
  description: string | null;
  thumbnail_url: string | null;
  banner_url: string | null;
  subscriber_count: number | null;
  video_count: number | null;
  total_view_count: number | null;
  published_at: string | null;
  external_links: ChannelLink[];
  country: string | null;
  default_language: string | null;
  topic_categories: string[];
  keywords: string | null;
  subscribed: boolean;
  explored: boolean;
  blocked: boolean;
  stored_videos: number;
  from_explore: boolean;
  details_synced: boolean;
}

export interface ExploreResult {
  channel_id: string;
  ingested: number;
  next_page_token: string | null;
}

export interface FeedResponse {
  items: Video[];
  has_more: boolean;
  // Opaque keyset cursor for the next page, or null when this is the last page.
  next_cursor: string | null;
  // Only set by the live YouTube search: "scrape" (InnerTube, no API quota) or "api"
  // (search.list, 100 units/page) — lets the UI drop the quota warning in scrape mode.
  source?: "scrape" | "api";
  // NOTE: /api/feed also returns an echoed `limit`, but /api/search/youtube does not and nothing
  // in the app reads it, so it's deliberately omitted rather than typed required (a lie for search)
  // or optional (dead surface). Re-add if a consumer ever needs it.
}

export type PlaylistKind = "user" | "watch_later";
export type PlaylistSource = "local" | "youtube";

export interface Playlist {
  id: number;
  name: string;
  kind: PlaylistKind;
  source: PlaylistSource;
  yt_playlist_id: string | null;
  dirty: boolean; // linked local playlist has edits not yet pushed to YouTube
  item_count: number;
  total_duration_seconds: number;
  cover_thumbnail: string | null;
  has_video?: boolean; // only set when listed with ?contains=<video_id>
}

export interface PlaylistDetail {
  id: number;
  name: string;
  kind: PlaylistKind;
  source: PlaylistSource;
  yt_playlist_id: string | null;
  dirty: boolean;
  items: Video[];
}

export interface PushPlan {
  action: "create" | "update";
  to_insert: number;
  to_delete: number;
  to_reorder: number;
  yt_extra: number; // items on YouTube that the push would remove (divergence)
  units_estimate: number;
  remaining_today: number;
  affordable: boolean;
}

export interface PushResult {
  created: number;
  inserted: number;
  deleted: number;
  reordered: number;
  failures: string[];
  yt_playlist_id: string | null;
}

export interface FeedFilters {
  tags: number[];
  tagMode: "or" | "and";
  q: string;
  sort: string;
  // Re-roll token for the "shuffle" sort; bumped by the reshuffle button so the
  // feed re-queries with a fresh order. Ignored by every other sort.
  seed?: number;
  // "my" = only your subscriptions (default); "all" = the whole shared catalog.
  scope: "my" | "all";
  includeNormal: boolean;
  includeShorts: boolean;
  includeLive: boolean;
  show: string;
  // Library (scope "all") only — provenance filter: "organic" (default) hides search-
  // discovered videos, "all" mixes them in, "search" shows only them. Ignored for "my".
  librarySource?: "organic" | "all" | "search" | "plex";
  /** OR-ed together: a video from ANY of these passes, and every other filter still applies. */
  channelIds: string[];
  maxAgeDays?: number;
  minDuration?: number;
  maxDuration?: number;
  dateFrom?: string;
  dateTo?: string;
}

// A saved "smart view": a per-user named snapshot of FeedFilters (see SavedViewsWidget).
export interface SavedView {
  id: number;
  name: string;
  filters: FeedFilters;
  position: number;
  is_default: boolean;
}

export interface VersionInfo {
  app_version: string;
  git_sha: string;
  build_date: string | null;
  db_revision: string | null;
}

// The filter half of the query (everything except paging/sort), shared by the feed and
// the facet-count endpoint so both see exactly the same filter context.
function filterParams(f: FeedFilters): URLSearchParams {
  const p = new URLSearchParams();
  f.tags.forEach((t) => p.append("tags", String(t)));
  p.set("tag_mode", f.tagMode);
  if (f.q) p.set("q", f.q);
  p.set("scope", f.scope);
  p.set("show_normal", String(f.includeNormal));
  p.set("include_shorts", String(f.includeShorts));
  p.set("include_live", String(f.includeLive));
  p.set("show", f.show);
  f.channelIds.forEach((id) => p.append("channel_ids", id));
  if (f.maxAgeDays) p.set("max_age_days", String(f.maxAgeDays));
  if (f.dateFrom) p.set("published_after", f.dateFrom);
  if (f.dateTo) p.set("published_before", f.dateTo);
  if (f.minDuration != null) p.set("min_duration", String(f.minDuration));
  if (f.maxDuration != null) p.set("max_duration", String(f.maxDuration));
  // Only relevant in Library scope; the backend ignores it for "my". Default = hide search.
  p.set("library_source", f.librarySource ?? "organic");
  return p;
}

function feedQuery(f: FeedFilters, cursor: string | null, limit: number): string {
  const p = filterParams(f);
  p.set("sort", f.sort);
  if (f.sort === "shuffle" && f.seed) p.set("seed", String(f.seed));
  if (cursor) p.set("cursor", cursor);
  p.set("limit", String(limit));
  return p.toString();
}

export interface SyncStatus {
  subscriptions: number;
  channels_total: number;
  channels_backfilling: number;
  videos_total: number;
  pending_enrich: number;
  quota_used_today: number;
  quota_remaining_today: number;
  paused: boolean;
  is_admin: boolean;
}

export interface MyStatus {
  channels_total: number;
  channels_details_synced: number;
  channels_recent_synced: number;
  channels_deep_done: number;
  channels_recent_pending: number;
  channels_deep_pending: number;
  channels_deep_requested: number;
  deep_pending_count: number;
  deep_eta_seconds: number;
  my_videos: number;
  total_videos: number;
  quota_used_today: number;
  quota_remaining_today: number;
  paused: boolean;
  sync_active: boolean; // a channel-sync job (backfill/rss) is running right now
}

export interface MyUsage {
  today: number;
  last_7d: number;
  last_30d: number;
  all_time: number;
  by_action: Record<string, number>;
}

export interface AdminQuotaRow {
  user_id: number | null;
  email: string;
  total: number;
  by_action: Record<string, number>;
}

export interface AdminQuota {
  range_days: number;
  rows: AdminQuotaRow[];
  daily: { day: string; total: number }[];
}

export interface ManagedChannel {
  id: string;
  title: string | null;
  handle: string | null;
  thumbnail_url: string | null;
  subscriber_count: number | null;
  video_count: number | null;
  description: string | null;
  stored_videos: number;
  last_video_at: string | null;
  total_duration_seconds: number;
  count_normal: number;
  count_short: number;
  count_live: number;
  priority: number;
  hidden: boolean;
  deep_requested: boolean;
  deep_in_queue: boolean;
  tag_ids: number[];
  details_synced: boolean;
  recent_synced: boolean;
  backfill_done: boolean;
}

// A channel that shows up in the user's playlists but that they don't subscribe to —
// surfaced in the Channel manager's Discovery tab so they can subscribe in one click.
export interface DiscoveredChannel {
  id: string;
  title: string | null;
  handle: string | null;
  thumbnail_url: string | null;
  subscriber_count: number | null;
  video_count: number | null;
  description: string | null;
  playlist_video_count: number; // how many of the user's playlist videos are from here
  playlist_count: number; // across how many of their playlists
  details_synced: boolean;
}

export interface SchedulerJob {
  id: string;
  interval_minutes: number;
  next_run: string | null;
  running: boolean;
  status: "ok" | "error" | "skipped" | null;
  last_started: string | null;
  last_finished: string | null;
  last_result: string | null;
  last_error: string | null;
  // Live progress while running (null when idle or for jobs that don't report it).
  // total is null for indeterminate progress (e.g. enrichment drains an unknown queue).
  progress: { current: number; total: number | null; phase: string | null } | null;
}

export interface SchedulerStatus {
  running_here: boolean;
  enabled: boolean;
  paused: boolean;
  jobs: SchedulerJob[];
  queue: {
    channels_recent_pending: number;
    channels_deep_pending: number;
    deep_eta_seconds: number;
    videos_pending_enrich: number;
    videos_pending_shorts: number;
    videos_live_refresh: number;
  };
  quota: {
    used_today: number;
    remaining_today: number;
    daily_budget: number;
    backfill_reserve: number;
  };
  maintenance: {
    revalidate_batch: number;
    revalidate_batch_default: number;
    min: number;
    max: number;
  };
}

export interface Account {
  id: number;
  email: string;
  display_name: string | null;
  avatar_url: string | null;
  active: boolean;
}

// A durable, server-backed notification (the inbox center). Distinct from the client-side
// transient toast/bell, which lives only in localStorage.
export interface AppNotification {
  id: number;
  type: string;
  title: string;
  body: string | null;
  data: Record<string, unknown> | null;
  read: boolean;
  dismissed: boolean;
  created_at: string | null;
}

// Admin Configuration page: one DB-overridable setting (registry entry on the backend).
export interface ConfigItem {
  key: string;
  type: "int" | "str" | "bool";
  group: string;
  secret: boolean;
  min: number | null;
  max: number | null;
  is_set: boolean; // a DB override row exists (else using the env/config default)
  allow_empty?: boolean; // if true, a blank field stores "" (explicit empty) rather than resetting
  value?: string | number | boolean; // non-secret: effective value
  default?: string | number | boolean; // non-secret: env/config default
  default_is_set?: boolean; // secret: whether an env default exists
}
export interface SystemConfigData {
  groups: Record<string, ConfigItem[]>;
  secrets_manageable: boolean;
}

// Admin Users & roles page.
export interface AdminUserRow {
  id: number;
  email: string;
  display_name: string | null;
  role: string; // "user" | "admin"
  is_active: boolean;
  is_suspended: boolean;
  email_verified: boolean;
  is_demo: boolean;
  has_password: boolean;
  has_google: boolean;
  created_at: string | null;
}

export interface AuditRow {
  id: number;
  created_at: string | null;
  actor: string | null; // email of the acting admin; null = System (scheduler/background)
  action: string; // canonical key, localized on the client via auditActions.<action>
  target_type: string | null;
  target_id: string | null;
  summary: string | null;
  before: Record<string, unknown> | null;
  after: Record<string, unknown> | null;
}
export interface AuditListResult {
  items: AuditRow[];
  total: number; // total rows in the log (may exceed `items` if capped)
  returned: number;
}

export const api = {
  // Bootstrap probe: 200 always. Returns the user when signed in, or null when logged out
  // (the endpoint answers `{authenticated:false}` rather than 401, so the public landing never
  // logs a failed request to the console). React Query treats the null as data, not an error.
  me: async (): Promise<Me | null> => {
    // Always 200: `{ authenticated: false }` when logged out, else the full Me + `authenticated`.
    const r = await req<{ authenticated: boolean } & Partial<Me>>("/api/me");
    return r.authenticated ? (r as Me) : null;
  },
  accounts: (): Promise<Account[]> => req("/api/me/accounts"),
  deleteAccount: (): Promise<{ deleted: boolean }> => req("/api/me/account", { method: "DELETE" }),
  switchAccount: (userId: number): Promise<{ ok: boolean; user_id: number }> =>
    req("/api/me/switch", { method: "POST", body: JSON.stringify({ user_id: userId }) }),
  // Signs the current tab's active account out of the browser wallet (per-tab aware via the
  // X-Siftlode-Account header that req() attaches).
  logout: (): Promise<{ ok: boolean; switched: boolean }> =>
    req("/auth/logout", { method: "POST" }),
  version: (): Promise<VersionInfo> => req("/api/version"),
  tags: (): Promise<Tag[]> => req("/api/tags"),
  status: (): Promise<SyncStatus> => req("/api/sync/status"),
  feed: (f: FeedFilters, cursor: string | null, limit: number): Promise<FeedResponse> =>
    req(`/api/feed?${feedQuery(f, cursor, limit)}`),
  feedCount: (f: FeedFilters): Promise<{ count: number }> =>
    req(`/api/feed/count?${filterParams(f).toString()}`),
  // Live YouTube search: results are materialised into the catalog and returned as feed cards.
  // `quiet` so the YT-search panel can render quota/limit errors (incl. 429) inline instead of
  // popping the global modal. `cursor` is the next-page token (an InnerTube continuation token
  // in scrape mode, or a Data API pageToken in api mode); the response's `source` says which.
  searchYoutube: (q: string, cursor: string | null, limit?: number): Promise<FeedResponse> => {
    const p = new URLSearchParams({ q });
    if (cursor) p.set("cursor", cursor);
    if (limit) p.set("limit", String(limit));
    return req(`/api/search/youtube?${p.toString()}`, {}, { quiet: true });
  },
  // Discard a set of live-search results "as if never added" (drops your search-finds + deletes
  // the now-orphaned, un-kept videos). Returns how many videos were removed.
  clearSearch: (videoIds: string[]): Promise<{ removed: number }> =>
    req("/api/search/clear", { method: "POST", body: JSON.stringify({ video_ids: videoIds }) }),
  facets: (f: FeedFilters): Promise<{ counts: Record<string, number> }> =>
    req(`/api/facets?${filterParams(f).toString()}`),
  // idempotent: setting a state / saving a progress checkpoint is safe to replay, so these
  // recover from a transient gateway/keepalive 502 instead of surfacing it (see req()).
  setState: (id: string, status: string) =>
    req(
      `/api/videos/${id}/state`,
      { method: "POST", body: JSON.stringify({ status }) },
      { idempotent: true },
    ),
  clearState: (id: string) =>
    req(`/api/videos/${id}/state`, { method: "DELETE" }, { idempotent: true }),
  saveProgress: (id: string, positionSeconds: number, durationSeconds: number) =>
    req(
      `/api/videos/${id}/progress`,
      {
        method: "POST",
        body: JSON.stringify({
          position_seconds: Math.floor(positionSeconds),
          duration_seconds: Math.floor(durationSeconds),
        }),
      },
      { idempotent: true },
    ),
  // Fire-and-forget YT progress save that survives page unload (F5/close/navigate).
  saveProgressBeacon: (id: string, positionSeconds: number, durationSeconds: number): void =>
    beacon(`/api/videos/${encodeURIComponent(id)}/progress`, {
      position_seconds: Math.floor(positionSeconds),
      duration_seconds: Math.floor(durationSeconds),
    }),
  videoDetail: (id: string): Promise<VideoDetail> => req(`/api/videos/${id}`),
  pauseSync: () => req("/api/sync/pause", { method: "POST" }),
  resumeSync: () => req("/api/sync/resume", { method: "POST" }),
  // Overwriting preferences is idempotent, so let it retry on a transient gateway blip.
  savePrefs: (p: Record<string, unknown>) =>
    req("/api/me/preferences", { method: "PUT", body: JSON.stringify(p) }, { idempotent: true }),

  // --- channel manager ---
  myStatus: (): Promise<MyStatus> => req("/api/sync/my-status"),
  channels: (): Promise<ManagedChannel[]> => req("/api/channels"),
  updateChannel: (
    id: string,
    patch: { priority?: number; hidden?: boolean; deep_requested?: boolean },
  ) => req(`/api/channels/${id}`, { method: "PATCH", body: JSON.stringify(patch) }),
  resetChannelBackfill: (id: string) =>
    req(`/api/channels/${id}/reset-backfill`, { method: "POST" }),
  deepAll: (on = true): Promise<{ updated: number; deep_requested: boolean }> =>
    req(`/api/sync/deep-all?on=${on}`, { method: "POST" }),
  attachChannelTag: (id: string, tagId: number) =>
    req(`/api/channels/${id}/tags`, { method: "POST", body: JSON.stringify({ tag_id: tagId }) }),
  detachChannelTag: (id: string, tagId: number) =>
    req(`/api/channels/${id}/tags/${tagId}`, { method: "DELETE" }),
  unsubscribeChannel: (id: string) => req(`/api/channels/${id}/subscription`, { method: "DELETE" }),
  discoveredChannels: (): Promise<DiscoveredChannel[]> => req("/api/channels/discovery"),
  subscribeChannel: (id: string) => req(`/api/channels/${id}/subscribe`, { method: "POST" }),
  syncSubscriptions: (): Promise<{
    subscriptions: number;
    channels_new: number;
    channels_detailed: number;
    removed_stale: number;
    prune_skipped: boolean;
    quota_used_estimate: number;
    quota_remaining_today: number;
  }> => req("/api/sync/subscriptions", { method: "POST" }),
  // --- channel page (About detail + ephemeral exploration of un-subscribed channels) ---
  channelDetail: (id: string): Promise<ChannelDetail> => req(`/api/channels/${id}`),
  // Open an un-subscribed channel for browsing: ingest a page of its uploads (newest-first,
  // marked via_explore) + record the exploration. `pageToken` continues into older uploads
  // ("load more"). `quiet` so a quota-reserve 429 / load error renders inline on the page.
  exploreChannel: (id: string, pageToken?: string | null): Promise<ExploreResult> => {
    const p = new URLSearchParams();
    if (pageToken) p.set("page_token", pageToken);
    const qs = p.toString();
    return req(
      `/api/channels/${id}/explore${qs ? `?${qs}` : ""}`,
      { method: "POST" },
      { quiet: true },
    );
  },
  // --- per-user channel blocklist (excluded from live search + feed/explore) ---
  blockedChannels: (): Promise<
    { id: string; title: string | null; handle: string | null; thumbnail_url: string | null }[]
  > => req("/api/channels/blocked/list"),
  blockChannel: (id: string) => req(`/api/channels/${id}/block`, { method: "POST" }),
  unblockChannel: (id: string) => req(`/api/channels/${id}/block`, { method: "DELETE" }),
  // Admin: reclaim all un-kept discovery content (search results + explored channels) now.
  purgeDiscovery: (): Promise<Record<string, number>> =>
    req("/api/admin/purge-discovery", { method: "POST" }),

  // --- playlists ---
  playlists: (containsVideoId?: string): Promise<Playlist[]> =>
    req(`/api/playlists${containsVideoId ? `?contains=${containsVideoId}` : ""}`),
  playlist: (id: number): Promise<PlaylistDetail> => req(`/api/playlists/${id}`),
  createPlaylist: (name: string): Promise<Playlist> =>
    req("/api/playlists", { method: "POST", body: JSON.stringify({ name }) }),
  renamePlaylist: (id: number, name: string): Promise<Playlist> =>
    req(`/api/playlists/${id}`, { method: "PATCH", body: JSON.stringify({ name }) }),
  deletePlaylist: (id: number, onYoutube = false) =>
    req(`/api/playlists/${id}${onYoutube ? "?on_youtube=true" : ""}`, { method: "DELETE" }),
  addToPlaylist: (id: number, videoId: string) =>
    req(`/api/playlists/${id}/items`, {
      method: "POST",
      body: JSON.stringify({ video_id: videoId }),
    }),
  removeFromPlaylist: (id: number, videoId: string) =>
    req(`/api/playlists/${id}/items/${videoId}`, { method: "DELETE" }),
  reorderPlaylist: (id: number, videoIds: string[]) =>
    req(`/api/playlists/${id}/order`, {
      method: "PUT",
      body: JSON.stringify({ video_ids: videoIds }),
    }),
  // Bookmark shortcut for the built-in Watch later playlist.
  watchLaterAdd: (videoId: string) =>
    req("/api/playlists/watch-later", {
      method: "POST",
      body: JSON.stringify({ video_id: videoId }),
    }),
  watchLaterRemove: (videoId: string) =>
    req(`/api/playlists/watch-later/${videoId}`, { method: "DELETE" }),
  syncYoutubePlaylists: (): Promise<{ synced: number; reason?: string }> =>
    req("/api/playlists/sync-youtube", { method: "POST" }),
  revertPlaylist: (id: number): Promise<{ items: number }> =>
    req(`/api/playlists/${id}/revert-youtube`, { method: "POST" }),
  playlistPushPlan: (id: number): Promise<PushPlan> => req(`/api/playlists/${id}/push-plan`),
  pushPlaylist: (id: number): Promise<PushResult> =>
    req(`/api/playlists/${id}/push`, { method: "POST" }),

  // --- quota usage ---
  myUsage: (): Promise<MyUsage> => req("/api/quota/my-usage"),
  adminQuota: (days = 30): Promise<AdminQuota> => req(`/api/quota/admin?days=${days}`),
  // --- admin: system configuration ---
  adminConfig: (): Promise<SystemConfigData> => req("/api/admin/config"),
  setConfig: (key: string, value: string | number | boolean): Promise<SystemConfigData> =>
    req(`/api/admin/config/${key}`, { method: "PATCH", body: JSON.stringify({ value }) }),
  resetConfig: (key: string): Promise<SystemConfigData> =>
    req(`/api/admin/config/${key}`, { method: "DELETE" }),
  testEmail: (): Promise<{ sent: boolean; to: string }> =>
    req("/api/admin/config/test-email", { method: "POST" }),
  ...plexApi,
  // --- admin: users & roles ---
  adminAudit: (limit = 500): Promise<AuditListResult> => req(`/api/admin/audit?limit=${limit}`),
  clearAudit: (): Promise<{ cleared: number }> => req("/api/admin/audit", { method: "DELETE" }),
  adminUsers: (): Promise<AdminUserRow[]> => req("/api/admin/users"),
  setUserRole: (id: number, role: "user" | "admin"): Promise<AdminUserRow> =>
    req(`/api/admin/users/${id}/role`, { method: "PATCH", body: JSON.stringify({ role }) }),
  setUserSuspended: (id: number, suspended: boolean): Promise<AdminUserRow> =>
    req(`/api/admin/users/${id}/suspend`, { method: "PATCH", body: JSON.stringify({ suspended }) }),
  adminDeleteUser: (id: number): Promise<{ deleted: number }> =>
    req(`/api/admin/users/${id}`, { method: "DELETE" }),
  schedulerStatus: (): Promise<SchedulerStatus> => req("/api/admin/scheduler"),
  updateSchedulerJob: (
    jobId: string,
    intervalMinutes: number,
  ): Promise<{ id: string; interval_minutes: number }> =>
    req(`/api/admin/scheduler/jobs/${jobId}`, {
      method: "PATCH",
      body: JSON.stringify({ interval_minutes: intervalMinutes }),
    }),
  runSchedulerJob: (jobId: string): Promise<{ id: string; started: boolean }> =>
    req(`/api/admin/scheduler/jobs/${jobId}/run`, { method: "POST" }),
  runAllSchedulerJobs: (): Promise<{ started: string[] }> =>
    req("/api/admin/scheduler/run-all", { method: "POST" }),
  updateMaintenanceBatch: (revalidateBatch: number): Promise<{ revalidate_batch: number }> =>
    req("/api/admin/scheduler/maintenance", {
      method: "PATCH",
      body: JSON.stringify({ revalidate_batch: revalidateBatch }),
    }),

  // Public: which sign-in options this instance offers (e.g. hide Google when not configured).
  authConfig: (): Promise<{
    google_enabled: boolean;
    allow_registration: boolean;
    operator_contact: string | null;
  }> => req("/auth/config"),

  // --- first-run install wizard (token from the setup URL printed to the container logs) ---
  setupStatus: (): Promise<{ configured: boolean }> => req("/api/setup/status"),
  setupInfo: (token: string): Promise<{ secrets_manageable: boolean }> =>
    req("/api/setup/info", { headers: setupHeaders(token) }, { quiet: true }),
  setupAdmin: (token: string, email: string, password: string): Promise<{ ok: boolean }> =>
    req(
      "/api/setup/admin",
      { method: "POST", headers: setupHeaders(token), body: JSON.stringify({ email, password }) },
      { quiet: true },
    ),
  setupConfig: (token: string, values: Record<string, unknown>): Promise<{ saved: string[] }> =>
    req(
      "/api/setup/config",
      { method: "POST", headers: setupHeaders(token), body: JSON.stringify(values) },
      { quiet: true },
    ),
  setupTestEmail: (token: string, to: string): Promise<{ ok: boolean }> =>
    req(
      "/api/setup/test-email",
      { method: "POST", headers: setupHeaders(token), body: JSON.stringify({ to }) },
      { quiet: true },
    ),
  setupFinish: (token: string): Promise<{ ok: boolean }> =>
    req("/api/setup/finish", { method: "POST", headers: setupHeaders(token) }, { quiet: true }),
  // --- auth: email + password (errors handled inline via quiet) ---
  register: (email: string, password: string): Promise<{ status: string }> =>
    req(
      "/auth/register",
      { method: "POST", body: JSON.stringify({ email, password }) },
      { quiet: true },
    ),
  passwordLogin: (email: string, password: string): Promise<{ ok: boolean }> =>
    req(
      "/auth/password-login",
      { method: "POST", body: JSON.stringify({ email, password }) },
      { quiet: true },
    ),
  requestPasswordReset: (email: string): Promise<{ status: string }> =>
    req(
      "/auth/password-reset/request",
      { method: "POST", body: JSON.stringify({ email }) },
      { quiet: true },
    ),
  confirmPasswordReset: (token: string, password: string): Promise<{ ok: boolean }> =>
    req(
      "/auth/password-reset/confirm",
      { method: "POST", body: JSON.stringify({ token, password }) },
      { quiet: true },
    ),
  // Confirm an email-verification token the SPA read from the URL fragment (SB3).
  verifyEmail: (token: string): Promise<{ ok: boolean }> =>
    req("/auth/verify", { method: "POST", body: JSON.stringify({ token }) }, { quiet: true }),
  // Re-issue a verification link (the first one expired, or was lost). Uniform response — never
  // reveals whether the email has a pending account.
  resendVerification: (email: string): Promise<{ status: string }> =>
    req(
      "/auth/verify/resend",
      { method: "POST", body: JSON.stringify({ email }) },
      { quiet: true },
    ),
  // SA4: sign every OTHER session for this account out (keeps the current one).
  logoutOthers: (): Promise<{ ok: boolean }> => req("/auth/logout-others", { method: "POST" }),
  // Set or change the signed-in account's password (errors shown inline via quiet).
  setPassword: (password: string, currentPassword?: string): Promise<{ ok: boolean }> =>
    req(
      "/auth/set-password",
      { method: "POST", body: JSON.stringify({ password, current_password: currentPassword }) },
      { quiet: true },
    ),
  // --- onboarding / admin ---
  requestAccess: (email: string): Promise<{ status: string }> =>
    req("/auth/request-access", { method: "POST", body: JSON.stringify({ email }) }),
  // Hidden demo entry: a whitelisted email logs into the shared demo account, no Google
  // sign-in. Returns whether a session was established.
  demoLogin: (email: string): Promise<{ authenticated: boolean }> =>
    req("/auth/demo", { method: "POST", body: JSON.stringify({ email }) }),
  adminDemoWhitelist: (): Promise<DemoWhitelistEntry[]> => req("/api/admin/demo/whitelist"),
  addDemoWhitelist: (email: string): Promise<DemoWhitelistEntry> =>
    req("/api/admin/demo/whitelist", { method: "POST", body: JSON.stringify({ email }) }),
  removeDemoWhitelist: (id: number) => req(`/api/admin/demo/whitelist/${id}`, { method: "DELETE" }),
  resetDemo: (): Promise<{ reset: boolean; playlists_seeded: number }> =>
    req("/api/admin/demo/reset", { method: "POST" }),
  adminInvites: (status?: string): Promise<Invite[]> =>
    req(`/api/admin/invites${status ? `?status=${status}` : ""}`),
  approveInvite: (id: number) => req(`/api/admin/invites/${id}/approve`, { method: "POST" }),
  denyInvite: (id: number) => req(`/api/admin/invites/${id}/deny`, { method: "POST" }),
  addInvite: (email: string) =>
    req("/api/admin/invites", { method: "POST", body: JSON.stringify({ email }) }),

  // --- notification inbox (durable, server-backed) ---
  notifications: (includeDismissed = false): Promise<{ items: AppNotification[]; total: number }> =>
    req(`/api/me/notifications?include_dismissed=${includeDismissed}`),
  notificationUnreadCount: (): Promise<{ count: number }> =>
    req("/api/me/notifications/unread_count"),
  markNotificationRead: (id: number) => req(`/api/me/notifications/${id}/read`, { method: "POST" }),
  markAllNotificationsRead: () => req("/api/me/notifications/read_all", { method: "POST" }),
  dismissNotification: (id: number) =>
    req(`/api/me/notifications/${id}/dismiss`, { method: "POST" }),
  clearNotifications: () => req("/api/me/notifications/clear", { method: "POST" }),

  // --- saved smart views (named FeedFilters snapshots) ---
  savedViews: (): Promise<SavedView[]> => req("/api/saved-views"),
  createView: (name: string, filters: FeedFilters): Promise<SavedView> =>
    req("/api/saved-views", { method: "POST", body: JSON.stringify({ name, filters }) }),
  updateView: (
    id: number,
    patch: Partial<{ name: string; filters: FeedFilters; is_default: boolean }>,
  ): Promise<SavedView> =>
    req(`/api/saved-views/${id}`, { method: "PATCH", body: JSON.stringify(patch) }),
  deleteView: (id: number): Promise<{ deleted: number }> =>
    req(`/api/saved-views/${id}`, { method: "DELETE" }),
  reorderViews: (ids: number[]): Promise<{ ok: boolean }> =>
    req("/api/saved-views/reorder", { method: "POST", body: JSON.stringify({ ids }) }),

  ...messagingApi,

  // --- user tags ---
  createTag: (t: { name: string; color?: string; category?: string }) =>
    req("/api/tags", { method: "POST", body: JSON.stringify(t) }),
  updateTag: (id: number, patch: { name?: string; color?: string }) =>
    req(`/api/tags/${id}`, { method: "PATCH", body: JSON.stringify(patch) }),
  deleteTag: (id: number) => req(`/api/tags/${id}`, { method: "DELETE" }),

  ...downloadsApi,
};