/** App + ATProto configuration. */

// ATProto identifiers + the OAuth scope live in a build-tool-safe module (no
// `import.meta`) so vite.config.ts can import them to generate
// oauth-client-metadata.json.
// Re-exported here so the rest of the app keeps importing them from "./config".
export {
  OCCURRENCE_COLLECTION,
  CONFIG_COLLECTION,
  CONFIG_RKEY,
  SPACE_TYPE,
  SPACE_SKEY,
  OAUTH_SCOPE,
} from "./oauth-scope";

export const APP_NAME = "chalky.town";

/**
 * Handle resolver: turns a handle (you@tyler.fun) into a DID + PDS during OAuth.
 * bsky.social resolves any atproto handle; swap for your own appview/PDS if you
 * prefer to keep resolution in-house.
 */
export const HANDLE_RESOLVER = "https://bsky.social";

/** PLC directory, where `did:plc:` DID documents are published. Read (never
 *  written) by the public/demo path to find an account's PDS without a session. */
export const PLC_DIRECTORY = "https://plc.directory";

/** How often the background sync loop runs while online, in ms. */
export const SYNC_INTERVAL_MS = 20_000;

/** Ops per `listRepoOps` page. A cycle that finds changes usually finds a
 *  handful, so this is sized for the catch-up case — a client returning after a
 *  long absence — where fewer, larger pages beat more round trips. */
export const OPS_PAGE_SIZE = 500;

/** Records per batched push. Keeps one request's body to a sane size while
 *  still collapsing a bulk edit (paste a checklist, drag a week's worth of
 *  tasks) from one request per record into one or two. */
export const PUSH_BATCH_SIZE = 50;

/** Ceiling for the sync loop's retry backoff, in ms. A backend that is down
 *  stays down for minutes, not seconds, so a failed cycle doubles its wait up to
 *  this — often enough to notice a recovery, rarely enough that an outage isn't
 *  a request every 20s (and a console full of the same error). */
export const SYNC_RETRY_MAX_MS = 5 * 60_000;

/** How long a sync cycle may run before the watchdog gives up on it and
 *  rearms the loop anyway. A healthy cycle settles in well under a second; this
 *  is sized for a slow network, not the normal case. It exists for the case a
 *  normal timeout can't cover: a request that neither resolves nor rejects —
 *  the observed behavior of a dead IndexedDB connection under iOS WebKit after
 *  the app is backgrounded and resumed (see `SyncEngine`'s `abandon` and
 *  `auth.ts`'s `reopenSession`). Without this, `running` stays true forever and
 *  every later cycle() call returns immediately without rearming. */
export const CYCLE_TIMEOUT_MS = 45_000;

/** Press-and-hold duration before a task lifts into a drag — no movement needed.
 *  Long enough not to fire on a tap (which opens the task) or the first moment of
 *  a scroll, short enough to feel immediate. ~250ms is the common long-press-to-
 *  drag sweet spot (matches dnd-kit's default touch activation delay). Applies to
 *  touch input; a mouse still starts a drag on a few px of movement, the desktop-
 *  native gesture that coexists with click-to-open. */
export const DRAG_HOLD_MS = 250;

/** Scale factor for the `malleable` sort's pinned `movedRank` axis (see
 *  TaskStore.move/placeInDay and colorRank in tasks.svelte.ts). Ranks live on
 *  the same numeric axis as `colorRank(...) * RANK_SCALE`, so pinning a task
 *  between two color groups still has integer headroom to halve into as more
 *  drags land between the same neighbours — same reasoning as ORDER_STEP for
 *  `order`. Also the conversion factor from the wire's legacy (pre-scale,
 *  fractional-prone) `movedRank` field to the current integer `rank` field —
 *  see records.ts's `toRecord`/`fromRecord`. */
export const RANK_SCALE = 1024;

/** IndexedDB database name (also the shared base word for the app's
 *  localStorage keys, `chalky:*`). */
export const DB_NAME = "chalky";
export const DB_VERSION = 3;

/**
 * OAuth `client_id` for the app's client — a URL to this app's client-metadata
 * document (`/oauth-client-metadata.json`). Build-time env so the dev site
 * (dev.chalky.town, built with `--mode dev`) can be its own client. Blank in
 * local dev: `atproto/auth.ts` falls back to a loopback client_id built from
 * the dev origin at runtime.
 *
 * Everything — sign-in, public repo writes, and the private space — now runs
 * against the user's own PDS with this one client; there is no HappyView
 * instance (or any other intermediary) in the path anymore.
 */
export const OAUTH_CLIENT_ID: string = import.meta.env.VITE_OAUTH_CLIENT_ID ?? "";