import { existsSync } from "node:fs";
import { createClient } from "@supabase/supabase-js";
import { prepareAssets } from "./assets.mjs";

if (existsSync(".env.local")) process.loadEnvFile(".env.local");
const id = process.argv[2];
if (
  !id ||
  !/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i.test(id)
)
  throw new Error(
    "Usage: npm run reprocess -- <dataset UUID>. Stop the MineGeo worker first.",
  );
if (!process.env.NEXT_PUBLIC_SUPABASE_URL || !process.env.SUPABASE_SECRET_KEY)
  throw new Error("Configure Supabase in .env.local before reprocessing.");
const client = createClient(
  process.env.NEXT_PUBLIC_SUPABASE_URL,
  process.env.SUPABASE_SECRET_KEY,
  {
    auth: { persistSession: false, autoRefreshToken: false },
  },
);
function check(result) {
  if (result.error) throw new Error(result.error.message);
  return result.data;
}
const dataset = check(
  await client.from("datasets").select("*").eq("id", id).single(),
);
if (
  dataset.revision_id ||
  dataset.parent_dataset_id ||
  !["draft", "review", "rejected", "failed"].includes(dataset.state)
)
  throw new Error(
    "Only an unpublished, inactive original capture can be reprocessed. Published revisions cannot be changed. Contributions cannot be overwritten; upload a new capture instead.",
  );
const job = check(
  await client.from("upload_jobs").select("*").eq("dataset_id", id).single(),
);
if (!["complete", "failed", "cancelled"].includes(job.state))
  throw new Error(
    "This job is already queued or running. Stop the worker and wait for it to finish before retrying.",
  );
const input = check(
  await client
    .from("dataset_inputs")
    .select("validated,manifest")
    .eq("dataset_id", id)
    .single(),
);
if (
  (input.manifest.availableViewpoints ?? input.manifest.viewpoints).some(
    (p) => p.assetRoot,
  )
)
  throw new Error(
    "This draft contains accepted contributions. Upload a new capture instead of reprocessing mixed media.",
  );
if (dataset.source === "plugin") await prepareAssets();

// This maintenance command runs with the worker stopped. Compare-and-set
// guards reject intervening publication, ownership of a job, or another repair.
const changed = check(
  await client
    .from("datasets")
    .update({
      state: "processing",
      rejection_reason: null,
      map_path: null,
      cover_path: null,
      panorama_count: 0,
      updated_at: new Date().toISOString(),
    })
    .eq("id", id)
    .eq("state", dataset.state)
    .is("revision_id", null)
    .select("id"),
);
if (changed.length !== 1)
  throw new Error(
    "Dataset state changed; nothing was queued. Run the command again.",
  );
try {
  check(
    await client
      .from("dataset_inputs")
      .update({ validated: false })
      .eq("dataset_id", id),
  );
  const queued = check(
    await client
      .from("upload_jobs")
      .update({
        state: "queued",
        attempts: 0,
        progress: 0,
        error: null,
        lease_owner: null,
        lease_until: null,
        updated_at: new Date().toISOString(),
      })
      .eq("id", job.id)
      .eq("state", job.state)
      .eq("updated_at", job.updated_at)
      .select("id"),
  );
  if (queued.length !== 1)
    throw new Error(
      "Job state changed while queuing; stop the worker before retrying.",
    );
} catch (error) {
  // A transport error can occur after an update committed. If the job is
  // queued/running, leave its dataset processing; otherwise restore its draft.
  const current = await client
    .from("upload_jobs")
    .select("state")
    .eq("id", job.id)
    .single();
  if (!current.error && !["queued", "running"].includes(current.data.state)) {
    check(
      await client
        .from("datasets")
        .update({
          state: dataset.state,
          rejection_reason: dataset.rejection_reason,
          map_path: dataset.map_path,
          cover_path: dataset.cover_path,
          panorama_count: dataset.panorama_count,
          updated_at: new Date().toISOString(),
        })
        .eq("id", id)
        .eq("state", "processing")
        .is("revision_id", null),
    );
    check(
      await client
        .from("dataset_inputs")
        .update({ validated: input.validated })
        .eq("dataset_id", id),
    );
  }
  throw error;
}
console.log(
  `Queued dataset ${id} for a fresh render. Start MineGeo; no new export or upload is needed.`,
);