#!/usr/bin/env tsx
// Check which of a social channel's archived posts have been deleted at the
// source.
//
//   pnpm --filter yt-dlp-transcript-common exec tsx \
//     bin/check-post-availability.ts --slug <channel> [--mode stale|unchecked|all] [--limit N]

import { getPaths } from "../lib/paths";
import {
  CHECK_POST_AVAILABILITY_MODES,
  checkPostAvailability,
  type CheckPostAvailabilityMode,
} from "../controller/checkPostAvailability";
import { parseFlags } from "./_parseFlags";

const flags = parseFlags(process.argv.slice(2));
const slug = flags.slug;
if (!slug) {
  console.error(
    "Usage: check-post-availability.ts --slug <channel> [--mode stale|unchecked|all] [--limit N]",
  );
  process.exit(2);
}
const mode = (flags.mode ?? "stale") as CheckPostAvailabilityMode;
if (!CHECK_POST_AVAILABILITY_MODES.includes(mode)) {
  console.error(`--mode must be one of: ${CHECK_POST_AVAILABILITY_MODES.join(", ")}`);
  process.exit(2);
}
const limitRaw = flags.limit ? Number(flags.limit) : undefined;

checkPostAvailability({
  paths: getPaths(),
  slug,
  mode,
  limit:
    typeof limitRaw === "number" && Number.isFinite(limitRaw) && limitRaw > 0
      ? Math.floor(limitRaw)
      : undefined,
  onLog: (line) => console.log(line),
})
  .then((r) => {
    if (!r.ok) {
      console.error(`Failed: ${r.error}`);
      process.exit(1);
    }
    console.log(
      `Checked ${r.checked}; ${r.newlyDeleted.length} newly deleted; ` +
        `${r.deleted} deleted overall; ${r.remaining} never checked.`,
    );
  })
  .catch((err) => {
    console.error(err);
    process.exit(1);
  });