import assert from "node:assert/strict";
import {
  HoverIntent,
  sameScope,
  processorMatches,
  preparationQueue,
  selectSuccessfulAnnotationJobs,
  mergeCachedAnnotationEntries,
  selectAnnotationRetryJobs,
  annotationRetryStatus,
  explicitAnnotationRetry,
} from "../src/work.js";
const oldProcessor = { key: "processor-v1:scope" };
assert(processorMatches(oldProcessor, "processor-v1"));
assert(
  !processorMatches(oldProcessor, "processor-v2"),
  "A checked processor edit invalidates saved results even when document and feature settings are unchanged",
);
assert(!processorMatches({ key: "processor-v10:scope" }, "processor-v1"));
const feature = {
  processor: "definition",
  generation: "focus",
  scope: "word",
  reveal: "hover",
  configRevision: 2,
  enabled: true,
};
assert(
  sameScope(
    { sourceRevision: "s", configuration: "compute", featureRevision: 2, start: 0, end: 2, status: "ready" },
    "s",
    "compute",
    {
      start: 0,
      end: 2,
    },
  ),
);
assert(
  !sameScope(
    { sourceRevision: "s", configuration: "different", featureRevision: 1, start: 0, end: 2, status: "ready" },
    "s",
    "compute",
    {
      start: 0,
      end: 2,
    },
  ),
);
const intent = new HoverIntent(10);
let calls: string[] = [];
intent.schedule(() => calls.push("old"));
intent.schedule(() => calls.push("new"));
await new Promise((resolve) => setTimeout(resolve, 30));
assert.deepEqual(calls, ["new"]);
intent.schedule(() => calls.push("left"));
intent.cancel();
await new Promise((resolve) => setTimeout(resolve, 30));
assert.deepEqual(calls, ["new"]);
intent.schedule(() => calls.push("unmounted"));
intent.cancel();
console.log("PASS heavy hover intent, cancellation, scopes and stale cache guards");

const scope = (key: string, configuration: string, start: number, local = false) => ({
  key,
  configuration,
  range: { start, end: start + 10 },
  local,
});
const empty = new Set<string>();
const a = scope("a", "pinyin", 0),
  b = scope("b", "pinyin", 10),
  c = scope("c", "pinyin", 20);
assert.deepEqual(
  preparationQueue([a, b, c], { start: 0, end: 30 }, 0, empty, empty).admit,
  [a, b],
  "Independent sections of the same annotator can use both model slots",
);
const d = scope("d", "names", 0);
assert.deepEqual(
  preparationQueue([a, b, c, d], { start: 0, end: 30 }, 0, empty, empty).admit,
  [a, d],
  "Features take turns when their scopes are equally close",
);
const full = preparationQueue([a, b, c], { start: 0, end: 30 }, 2, empty, empty);
assert.deepEqual(full.admit, []);
assert.deepEqual(full.waiting, [a, b, c], "Unadmitted scopes remain available for queued outlines");
assert.deepEqual(
  preparationQueue([a, a, b, c], { start: 0, end: 30 }, 0, new Set(["b"]), new Set(["a"])).waiting,
  [c],
  "Cached ready or failed scopes, admitted intents and shared-computation duplicates do not get queued outlines",
);
assert.deepEqual(
  preparationQueue([a, b, c], { start: 10, end: 20 }, 1, empty, empty).admit,
  [b],
  "Visible work takes the released slot before neighboring scopes",
);
const local = scope("local", "local", 20, true);
assert.deepEqual(
  preparationQueue([a, local], { start: 0, end: 30 }, 2, empty, empty).admit,
  [local],
  "Local annotations do not wait for inference slots",
);
console.log("PASS queued outlines, bounded independent scope admission, fair features and cache exclusion");

import { presentAnnotations } from "../src/annotation-display.js";
const readings = [
  { start: 0, end: 2, text: "Běijīng", tag: "hsk:3" },
  { start: 2, end: 4, text: "xīngqīliù", tag: "hsk:1" },
];
assert.equal(presentAnnotations("pinyin", readings, { minimumLevel: "2" }).length, 1);
assert.equal(presentAnnotations("pinyin", readings, { minimumLevel: "0" }).length, 2);
assert.equal(
  presentAnnotations("pinyinWord", readings, { minimumLevel: "8" }).length,
  2,
  "Hover includes easy words too",
);
assert.equal(
  presentAnnotations("names", [{ ...readings[0], tag: "place" }], { placeColor: "#123456" })[0].color,
  "#123456",
);
console.log("PASS local HSK filtering, all-word hover pinyin and category recoloring from raw cache");

import { renderAnnotations } from "../src/render-hooks.js";
import type { Annotation } from "../src/canvas/types.js";
const source = "🙂 Un mot littéraire.";
const semantic: Annotation = {
  id: "item",
  feature: "source",
  start: 6,
  end: 9,
  text: "word",
  style: "replace",
  color: "#123456",
};
const outputs = renderAnnotations(semantic, source, [
  { style: "replace", reveal: "always" },
  { style: "color", reveal: "always" },
  { style: "tooltip", reveal: "hover", content: "source" },
]);
assert.deepEqual(
  outputs.map(({ style, text, reveal }) => ({ style, text, reveal })),
  [
    { style: "replace", text: "word", reveal: "always" },
    { style: "color", text: "word", reveal: "always" },
    { style: "tooltip", text: "mot", reveal: "hover" },
  ],
);
assert.equal(new Set(outputs.map((output) => output.id)).size, 3);
assert(outputs.every((output) => output.feature === semantic.feature && output.start === 6 && output.end === 9));
assert.equal(semantic.text, "word", "Rendering never mutates cached semantic data");
assert.deepEqual(renderAnnotations(semantic, source, undefined), [semantic]);
console.log("PASS one source rendered as replacement, color and original-text hover tooltip");

assert(
  sameScope(
    {
      sourceRevision: "doc@1",
      featureRevision: 4,
      start: 0,
      end: 6,
      status: "ready",
      configuration: JSON.stringify({ processor: "pinyin", scope: "word", generation: "section", options: {} }),
    },
    "doc@1",
    JSON.stringify({ processor: "pinyin", scope: "word", options: {} }),
    { start: 0, end: 6 },
  ),
  "Changing preparation timing reuses a persisted semantic result",
);

assert(processorMatches({ key: "verified-previous:light-fast:result" }, "current", ["verified-previous"]));
assert(!processorMatches({ key: "unknown:light-fast:result" }, "current", ["verified-previous"]));

const scopeConfiguration = JSON.stringify({ processor: "pinyin", scope: "word", options: {} });
const savedJob = (object: string, createdAt: string, items: unknown[], key = "current:scope") => ({
  _camino: { ref: { object } },
  configuration: scopeConfiguration,
  data: {
    key,
    kind: "annotation",
    status: "ready",
    sourceRevision: "doc@1",
    start: 0,
    end: 6,
    createdAt,
    output: JSON.stringify({ items }),
  },
});
const oldFacts = savedJob("old", "2026-10-01", [
    { start: 0, end: 2 },
    { start: 2, end: 4 },
  ]),
  clearedFacts = savedJob("cleared", "2026-10-02", []),
  narrowedFacts = savedJob("narrowed", "2026-10-03", [{ start: 0, end: 2 }]),
  failedFacts = {
    ...savedJob("failed", "2026-10-04", []),
    data: { ...oldFacts.data, status: "failed", createdAt: "2026-10-04" },
  };
const accepts = (job: typeof oldFacts) => processorMatches(job.data, "current", ["verified-previous"]);
assert.deepEqual(
  selectSuccessfulAnnotationJobs([oldFacts, clearedFacts], accepts),
  [clearedFacts],
  "An empty successful regeneration clears its old items",
);
assert.deepEqual(
  selectSuccessfulAnnotationJobs([oldFacts, clearedFacts, narrowedFacts, failedFacts], accepts),
  [narrowedFacts],
  "A smaller successful output replaces the whole scope; failure does not erase success",
);
const oldAlias = {
  ...oldFacts,
  data: { ...oldFacts.data, key: "verified-previous:light-fast:legacy" },
  configuration: JSON.stringify({ processor: "pinyin", scope: "word", generation: "section", options: {} }),
};
const unknown = savedJob("unknown", "2026-10-05", [{ start: 4, end: 6 }], "unknown:scope");
assert.deepEqual(
  selectSuccessfulAnnotationJobs([oldAlias, clearedFacts, unknown], accepts),
  [clearedFacts],
  "Verified revision aliases and old generation formatting describe the same semantic scope; unknown revisions cannot replace it",
);
const anotherRange = { ...oldFacts, data: { ...oldFacts.data, start: 6, end: 8 } },
  anotherSource = { ...oldFacts, data: { ...oldFacts.data, sourceRevision: "doc@2" } },
  anotherInput = {
    ...oldFacts,
    configuration: JSON.stringify({ processor: "pinyin", scope: "word", options: { targetLanguage: "French" } }),
  };
assert.equal(
  selectSuccessfulAnnotationJobs([clearedFacts, anotherRange, anotherSource, anotherInput], accepts).length,
  4,
  "Different semantic inputs, ranges and sources retain independent results",
);
const canonical = mergeCachedAnnotationEntries([{ node: oldFacts }], [{ node: narrowedFacts }, { node: failedFacts }]);
assert.deepEqual(
  canonical.map(({ node }) => node._camino.ref.object),
  ["old", "failed"],
  "Indexed success takes precedence over newer attempt history for its exact key",
);
assert.deepEqual(
  selectSuccessfulAnnotationJobs(
    canonical.map(({ node }) => node),
    accepts,
  ),
  [oldFacts],
);
assert.deepEqual(
  mergeCachedAnnotationEntries([{ node: clearedFacts }, { node: oldFacts }], []),
  [{ node: clearedFacts }],
  "Overlapping pagination snapshots retain one canonical pointer per key",
);
assert.deepEqual(
  JSON.parse(oldFacts.data.output).items,
  [
    { start: 0, end: 2 },
    { start: 2, end: 4 },
  ],
  "Selection never mutates retained historical output",
);
console.log(
  "PASS canonical cache pointers and whole-scope replacement, including empty/narrowed successes, aliases and failed retries",
);

const retryFeature = {
  feature: "pinyin",
  configuration: scopeConfiguration,
  revision: "current",
  aliases: ["verified-previous"],
  styles: ["overhead"],
};
const retryAttempt = (object: string, status: string, start = 0, createdAt = "2026-10-04") => ({
  ...savedJob(object, createdAt, []),
  data: { ...savedJob(object, createdAt, []).data, status, start, end: start + 6 },
});
const skipped = retryAttempt("skipped", "skipped"),
  failed = retryAttempt("failed", "failed", 6),
  uncertain = retryAttempt("uncertain", "uncertain", 12),
  offPage = retryAttempt("off-page", "skipped", 30),
  ready = retryAttempt("ready", "ready", 18),
  queued = retryAttempt("queued", "queued", 24);
const retryHistory = [skipped, failed, uncertain, offPage, ready, queued];
const retryHistorySnapshot = structuredClone(retryHistory);
const visiblePage = { start: 0, end: 30 };
assert.deepEqual(
  selectAnnotationRetryJobs(
    retryHistory,
    [retryFeature, { ...retryFeature, feature: "hover pinyin", styles: ["tooltip"] }],
    "doc@1",
    visiblePage,
  ).map(({ feature, job }) => [feature, job._camino.ref.object]),
  [
    ["pinyin", "skipped"],
    ["pinyin", "failed"],
    ["pinyin", "uncertain"],
  ],
  "Failed/skipped/uncertain visible scopes appear once across shared annotators; queued/ready/off-page scopes do not",
);
const legacySkipped = {
  ...skipped,
  configuration: oldAlias.configuration,
  data: { ...skipped.data, key: "verified-previous:legacy", createdAt: "2026-10-03" },
};
assert.equal(
  selectAnnotationRetryJobs([legacySkipped, skipped], [retryFeature], "doc@1", visiblePage).length,
  1,
  "Verified aliases and legacy scheduling configuration deduplicate the same scope",
);
for (const status of ["ready", "queued"]) {
  assert.deepEqual(
    selectAnnotationRetryJobs(
      [skipped, legacySkipped, retryAttempt("replacement", status, 0, "2026-10-05")],
      [retryFeature],
      "doc@1",
      visiblePage,
    ),
    [],
    "Newer queued or successful work supersedes old errors",
  );
}
assert.deepEqual(
  selectAnnotationRetryJobs([skipped], [{ ...retryFeature, styles: ["sidebar"] }], "doc@1", visiblePage),
  [],
);
assert.deepEqual(
  selectAnnotationRetryJobs([skipped], [{ ...retryFeature, styles: ["underline", "sidebar"] }], "doc@1", visiblePage),
  [],
  "Multi-hook sidebar processors already have controls",
);
assert.deepEqual(
  selectAnnotationRetryJobs(
    [skipped],
    [retryFeature, { ...retryFeature, feature: "notes", styles: ["sidebar"] }],
    "doc@1",
    visiblePage,
  ),
  [],
  "A shared sidebar renderer does not get duplicate controls",
);
assert.deepEqual(selectAnnotationRetryJobs([skipped], [retryFeature], "doc@2", visiblePage), []);
assert.deepEqual(selectAnnotationRetryJobs([skipped], [retryFeature], "doc@1", { start: 0, end: 0 }), []);
assert.deepEqual(
  selectAnnotationRetryJobs(
    [{ ...skipped, data: { ...skipped.data, kind: "variant" } }],
    [retryFeature],
    "doc@1",
    visiblePage,
  ),
  [],
);
assert.deepEqual(
  selectAnnotationRetryJobs(
    [{ ...unknown, data: { ...unknown.data, status: "failed" } }],
    [retryFeature],
    "doc@1",
    visiblePage,
  ),
  [],
);
assert.deepEqual(
  selectAnnotationRetryJobs(
    [{ ...anotherInput, data: { ...anotherInput.data, status: "failed" } }],
    [retryFeature],
    "doc@1",
    visiblePage,
  ),
  [],
);
assert.deepEqual(
  retryHistory,
  retryHistorySnapshot,
  "Status selection preserves all cached values and attempt history",
);
assert.equal(
  annotationRetryStatus("skipped", "AGENT_SETUP_UNAVAILABLE: Authentication required"),
  "Setup was unavailable. Try again when connected.",
);
assert.equal(annotationRetryStatus("uncertain", "raw transport error"), "Preparation could not be confirmed.");
const retrying = new Set<string>();
let explicitCalls = 0,
  finishRetry: () => void = () => {},
  rerenders = 0;
const dispatch = (settled: () => void) => {
  explicitCalls++;
  // The view delegates the original scope with retry:true, without replanning.
  const { feature, job } = selectAnnotationRetryJobs([skipped], [retryFeature], "doc@1", visiblePage)[0];
  assert.deepEqual(
    { feature, start: job.data.start, end: job.data.end, retry: true },
    { feature: "pinyin", start: 0, end: 6, retry: true },
  );
  finishRetry = settled;
  return true;
};
assert.equal(explicitCalls, 0, "Selecting failed statuses never dispatches inference");
assert(explicitAnnotationRetry("skipped", retrying, dispatch, () => rerenders++));
assert(!explicitAnnotationRetry("skipped", retrying, dispatch, () => rerenders++));
assert.equal(explicitCalls, 1, "Double clicks cannot repeat an in-flight retry");
finishRetry();
assert.equal(explicitCalls, 1, "Settlement never automatically retries");
assert.equal(retrying.size, 0);
assert.equal(rerenders, 2);
assert(
  !explicitAnnotationRetry(
    "not-ready",
    retrying,
    () => false,
    () => {},
  ),
);
assert.equal(retrying.size, 0, "An unavailable operation releases the button");
assert.throws(() =>
  explicitAnnotationRetry(
    "rejected",
    retrying,
    () => {
      throw Error("rejected");
    },
    () => {},
  ),
);
assert.equal(retrying.size, 0);
console.log(
  "PASS explicit nearby annotator retries, shared identities/aliases, sidebar/off-page exclusion and superseded attempts",
);