import { execFileSync } from "node:child_process";
import { existsSync, readFileSync } from "node:fs";
import { dirname, resolve } from "node:path";
import { fileURLToPath } from "node:url";

const browserRoot = resolve(dirname(fileURLToPath(import.meta.url)), "..");
const androidRoot = resolve(browserRoot, "../peach-android");
const localJavaHome = "/opt/homebrew/opt/openjdk@17";
const javaHome = process.env.JAVA_HOME ??
  (existsSync(localJavaHome) ? localJavaHome : undefined);
const browserCoordinator = readFileSync(
  resolve(browserRoot, "src/background/sync-coordinator.ts"),
  "utf8",
);
const androidCoordinator = readFileSync(
  resolve(androidRoot, "app/src/main/java/com/peachpasswords/sync/SyncCoordinator.kt"),
  "utf8",
);
const browserSyncTypes = readFileSync(resolve(browserRoot, "src/shared/sync-types.ts"), "utf8");
const androidManifest = readFileSync(
  resolve(androidRoot, "app/src/main/java/com/peachpasswords/sync/DeviceManifestSupport.kt"),
  "utf8",
);
const browserPairedDevices = readFileSync(
  resolve(browserRoot, "src/background/paired-devices.ts"),
  "utf8",
);
const androidPairedDevices = readFileSync(
  resolve(androidRoot, "app/src/main/java/com/peachpasswords/sync/PairedDeviceStore.kt"),
  "utf8",
);

if (browserCoordinator.includes('helloIn.version === localVersion')) {
  throw new Error("Browser still contains the forbidden equal-version fast path");
}
if (!browserCoordinator.includes("helloIn.deviceManifestVersion === DEVICE_MANIFEST_VERSION")) {
  throw new Error("Browser does not negotiate device manifests from SYNC_HELLO");
}
if (!androidCoordinator.includes("val exchangeDeviceManifest = vault.negotiatesDeviceManifest(hello)")) {
  throw new Error("Android does not negotiate device manifests from SYNC_HELLO");
}
if (!androidCoordinator.includes("peerVersion == DEVICE_MANIFEST_VERSION")) {
  throw new Error("Android does not require an exact device-manifest version match");
}
if (!browserSyncTypes.includes("DEVICE_MANIFEST_VERSION = 0x04") ||
    !androidManifest.includes("DEVICE_MANIFEST_VERSION = 0x04")) {
  throw new Error("Browser and Android device-manifest versions differ");
}
if (!browserPairedDevices.includes("MAX_REVOCATIONS = 500") ||
    !androidPairedDevices.includes("MAX_REVOCATION_RECORDS = 500")) {
  throw new Error("Browser and Android revocation ledger caps differ");
}
if (!browserPairedDevices.includes("enqueueDeviceMutation") ||
    !androidPairedDevices.includes("RegistryMutationGate")) {
  throw new Error("A paired-device registry lacks whole-list mutation serialization");
}
if (!browserPairedDevices.includes("function capRevocations") ||
    !androidPairedDevices.includes("fun capRevocationRecords")) {
  throw new Error("A client lacks largest-issuer-first revocation retention");
}

execFileSync(
  "npm",
  [
    "test", "--", "--run",
    "src/background/sync-coordinator.test.ts",
    "src/shared/sync-padding.test.ts",
    "src/shared/rendezvous.test.ts",
    "src/shared/device-manifest.test.ts",
    "src/crypto/peachPayload.test.ts",
    "src/shared/sync-entry-envelope.kat.test.ts",
    "src/shared/vault-adopt.test.ts",
    "src/background/paired-devices.test.ts",
    "src/background/relay-adoption-bg.test.ts",
  ],
  { cwd: browserRoot, stdio: "inherit" },
);
execFileSync(
  resolve(androidRoot, "gradlew"),
  [
    "--no-configuration-cache",
    "testDebugUnitTest",
    "--tests",
    "com.peachpasswords.sync.SyncCoordinatorTest",
    "--tests",
    "com.peachpasswords.sync.LockedSyncSpoolModelTest",
    "--tests",
    "com.peachpasswords.sync.SyncPaddingTest",
    "--tests",
    "com.peachpasswords.sync.DeviceManifestSupportTest",
    "--tests",
    "com.peachpasswords.CrossPlatformKATTest",
    "--tests",
    "com.peachpasswords.vault.PeachScriptTest",
    "--tests",
    "com.peachpasswords.sync.SyncEntryEnvelopeKatTest",
    "--tests",
    "com.peachpasswords.sync.VaultAdoptTest",
    "--tests",
    "com.peachpasswords.sync.PairedDeviceRevocationTest",
  ],
  {
    cwd: androidRoot,
    env: { ...process.env, ...(javaHome ? { JAVA_HOME: javaHome } : {}) },
    stdio: "inherit",
  },
);

console.log("Cross-client sync protocol gate passed.");