1 files changed, 0 insertions, 160 deletions
diff --git a/toolkit/components/ml/content/SummarizerModel.sys.mjs b/toolkit/components/ml/content/SummarizerModel.sys.mjs
deleted file mode 100644
index 7cac55d92f..0000000000
--- a/toolkit/components/ml/content/SummarizerModel.sys.mjs
+++ /dev/null
@@ -1,160 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/**
- * @typedef {object} LazyImports
- * @property {typeof import("../actors/MLEngineParent.sys.mjs").MLEngineParent} MLEngineParent
- */
-
-/** @type {LazyImports} */
-const lazy = {};
-
-ChromeUtils.defineESModuleGetters(lazy, {
-  RemoteSettings: "resource://services-settings/remote-settings.sys.mjs",
-  TranslationsParent: "resource://gre/actors/TranslationsParent.sys.mjs",
-});
-
-ChromeUtils.defineLazyGetter(lazy, "console", () => {
-  return console.createInstance({
-    maxLogLevelPref: "browser.ml.logLevel",
-    prefix: "ML",
-  });
-});
-
-export class SummarizerModel {
-  /**
-   * The RemoteSettingsClient that downloads the summarizer model.
-   *
-   * @type {RemoteSettingsClient | null}
-   */
-  static #remoteClient = null;
-
-  /** @type {Promise<WasmRecord> | null} */
-  static #modelRecord = null;
-
-  /**
-   * The following constant controls the major version for wasm downloaded from
-   * Remote Settings. When a breaking change is introduced, Nightly will have these
-   * numbers incremented by one, but Beta and Release will still be on the previous
-   * version. Remote Settings will ship both versions of the records, and the latest
-   * asset released in that version will be used. For instance, with a major version
-   * of "1", assets can be downloaded for "1.0", "1.2", "1.3beta", but assets marked
-   * as "2.0", "2.1", etc will not be downloaded.
-   */
-  static MODEL_MAJOR_VERSION = 1;
-
-  /**
-   * Remote settings isn't available in tests, so provide mocked responses.
-   */
-  static mockRemoteSettings(remoteClient) {
-    lazy.console.log("Mocking remote client in SummarizerModel.");
-    SummarizerModel.#remoteClient = remoteClient;
-    SummarizerModel.#modelRecord = null;
-  }
-
-  /**
-   * Remove anything that could have been mocked.
-   */
-  static removeMocks() {
-    lazy.console.log("Removing mocked remote client in SummarizerModel.");
-    SummarizerModel.#remoteClient = null;
-    SummarizerModel.#modelRecord = null;
-  }
-  /**
-   * Download or load the model from remote settings.
-   *
-   * @returns {Promise<ArrayBuffer>}
-   */
-  static async getModel() {
-    const client = SummarizerModel.#getRemoteClient();
-
-    if (!SummarizerModel.#modelRecord) {
-      // Place the records into a promise to prevent any races.
-      SummarizerModel.#modelRecord = (async () => {
-        // Load the wasm binary from remote settings, if it hasn't been already.
-        lazy.console.log(`Getting the summarizer model record.`);
-
-        // TODO - The getMaxVersionRecords should eventually migrated to some kind of
-        // shared utility.
-        const { getMaxVersionRecords } = lazy.TranslationsParent;
-
-        /** @type {WasmRecord[]} */
-        const wasmRecords = await getMaxVersionRecords(client, {
-          // TODO - This record needs to be created with the engine wasm payload.
-          filters: { name: "summarizer-model" },
-          majorVersion: SummarizerModel.MODEL_MAJOR_VERSION,
-        });
-
-        if (wasmRecords.length === 0) {
-          // The remote settings client provides an empty list of records when there is
-          // an error.
-          throw new Error("Unable to get the models from Remote Settings.");
-        }
-
-        if (wasmRecords.length > 1) {
-          SummarizerModel.reportError(
-            new Error("Expected the ml engine to only have 1 record."),
-            wasmRecords
-          );
-        }
-        const [record] = wasmRecords;
-        lazy.console.log(
-          `Using ${record.name}@${record.release} release version ${record.version} first released on Fx${record.fx_release}`,
-          record
-        );
-        return record;
-      })();
-    }
-
-    try {
-      /** @type {{buffer: ArrayBuffer}} */
-      const { buffer } = await client.attachments.download(
-        await SummarizerModel.#modelRecord
-      );
-
-      return buffer;
-    } catch (error) {
-      SummarizerModel.#modelRecord = null;
-      throw error;
-    }
-  }
-
-  /**
-   * Lazily initializes the RemoteSettingsClient.
-   *
-   * @returns {RemoteSettingsClient}
-   */
-  static #getRemoteClient() {
-    if (SummarizerModel.#remoteClient) {
-      return SummarizerModel.#remoteClient;
-    }
-
-    /** @type {RemoteSettingsClient} */
-    const client = lazy.RemoteSettings("ml-model");
-
-    SummarizerModel.#remoteClient = client;
-
-    client.on("sync", async ({ data: { created, updated, deleted } }) => {
-      lazy.console.log(`"sync" event for ml-model`, {
-        created,
-        updated,
-        deleted,
-      });
-
-      // Remove all the deleted records.
-      for (const record of deleted) {
-        await client.attachments.deleteDownloaded(record);
-      }
-
-      // Remove any updated records, and download the new ones.
-      for (const { old: oldRecord } of updated) {
-        await client.attachments.deleteDownloaded(oldRecord);
-      }
-
-      // Do nothing for the created records.
-    });
-
-    return client;
-  }
-}