import assert from "node:assert/strict";
import fs from "node:fs";
import path from "node:path";
import test from "node:test";
import ts from "typescript";

const repoRoot = path.resolve(import.meta.dirname, "../../..");
const sourcePath = path.join(repoRoot, "web/protocol/nanovdb-device-recovery.ts");
const transpiled = ts.transpileModule(fs.readFileSync(sourcePath, "utf8"), {
  compilerOptions: { module: ts.ModuleKind.ES2022, target: ts.ScriptTarget.ES2022 },
  fileName: sourcePath,
  reportDiagnostics: true,
});
assert.deepEqual(transpiled.diagnostics, []);
const moduleUrl = "data:text/javascript;base64," + Buffer.from(transpiled.outputText).toString("base64");
const recovery = await import(moduleUrl);

test("M8-15 deterministically bounds visible-page replay by resident capacity", () => {
  assert.deepEqual(recovery.planNanoVDBDeviceLossReplay([3, 1, 3, 2], 4, 2), {
    schemaVersion: 1,
    visiblePageIds: [1, 2, 3],
    replayedPageIds: [1, 2],
    skippedPageIds: [3],
    pageCount: 4,
    residentPageCapacity: 2,
  });
});

test("M8-15 rejects invalid replay bounds and visible page IDs", () => {
  for (const args of [
    [[0], 0, 1],
    [[0], 8193, 1],
    [[0], 2, 0],
    [[0], 2, 3],
    [[-1], 2, 1],
    [[2], 2, 1],
    [[0.5], 2, 1],
  ]) {
    assert.throws(() => recovery.planNanoVDBDeviceLossReplay(...args), /NANOVDB_INVALID_ARGUMENT/);
  }
});