encountered weird network error.

.gitignore

@@ -36,3 +36,4 @@ yarn-error.*
 *.tsbuildinfo
 
 coverage/**/*
+assets/whisper

__mocks__/db.ts

@@ -1,7 +1,8 @@
 export default {
   getDb: jest.fn(() => {
     return {
-      runAsync: jest.fn((statement: string, value: string) => {}),
+      runAsync: jest.fn((statement: string, ... values: string []) => {}),
+      runSync: jest.fn((statement: string, ... values : string []) => {}),
       getFirstAsync: jest.fn((statement: string, value: string) => {
         return [];
       }),

android/app/proguard-rules.pro

@@ -12,3 +12,5 @@
 -keep class com.facebook.react.turbomodule.** { *; }
 
 # Add any project specific keep options here:
+# whisper.rn
+-keep class com.rnwhisper.** { *; }

android/app/src/debug/AndroidManifest.xml

@@ -3,5 +3,5 @@
 
     <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
 
-    <application android:usesCleartextTraffic="true" tools:targetApi="28" tools:ignore="GoogleAppIndexingWarning" tools:replace="android:usesCleartextTraffic" />
+    <application android:largeHeap="true" android:usesCleartextTraffic="true" tools:targetApi="28" tools:ignore="GoogleAppIndexingWarning" tools:replace="android:usesCleartextTraffic" />
 </manifest>

android/app/src/main/AndroidManifest.xml

@@ -1,7 +1,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
   <uses-permission android:name="android.permission.INTERNET"/>
+  <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
   <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
+  <uses-permission android:name="android.permission.RECORD_AUDIO"/>
   <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
   <uses-permission android:name="android.permission.VIBRATE"/>
   <uses-permission android:name="android.permission.WAKE_LOCK"/>
@@ -13,7 +15,7 @@
       <data android:scheme="https"/>
     </intent>
   </queries>
-  <application android:name=".MainApplication" android:label="@string/app_name" android:icon="@mipmap/ic_launcher" android:roundIcon="@mipmap/ic_launcher_round" android:allowBackup="true" android:theme="@style/AppTheme" android:supportsRtl="true">
+  <application android:name=".MainApplication" android:label="@string/app_name" android:icon="@mipmap/ic_launcher" android:roundIcon="@mipmap/ic_launcher_round" android:allowBackup="true" android:theme="@style/AppTheme" android:supportsRtl="true" android:largeHeap="true">
     <meta-data android:name="expo.modules.updates.ENABLED" android:value="false"/>
     <meta-data android:name="expo.modules.updates.EXPO_UPDATES_CHECK_ON_LAUNCH" android:value="ALWAYS"/>
     <meta-data android:name="expo.modules.updates.EXPO_UPDATES_LAUNCH_WAIT_MS" android:value="0"/>

app.json

@@ -57,7 +57,8 @@
             ]
           }
         }
-      ]
+      ],
+      "expo-audio"
     ],
     "experiments": {
       "typedRoutes": true

app/i18n/api.ts

@@ -1,6 +1,6 @@
 import { Cache } from "react-native-cache";
 import { LIBRETRANSLATE_BASE_URL } from "@/constants/api";
-import AsyncStorage from '@react-native-async-storage/async-storage';
+import AsyncStorage from "@react-native-async-storage/async-storage";
 import { Settings } from "../lib/settings";
 
 type language_t = string;
@@ -9,74 +9,91 @@ const cache = new Cache({
   namespace: "translation_terrace",
   policy: {
     maxEntries: 50000, // if unspecified, it can have unlimited entries
-        stdTTL: 0 // the standard ttl as number in seconds, default: 0 (unlimited)
+    stdTTL: 0, // the standard ttl as number in seconds, default: 0 (unlimited)
   },
-    backend: AsyncStorage
+  backend: AsyncStorage,
 });
 
 export type language_matrix_entry = {
-    code: string,
+  code: string;
-    name: string,
+  name: string;
-    targets: string []
+  targets: string[];
-}
+};
 
 export type language_matrix = {
-    [key:string] : language_matrix_entry
+  [key: string]: language_matrix_entry;
-}
+};
 
-export async function fetchWithTimeout(url : string, options : RequestInit, timeout = 5000) : Promise<Response> {
+export async function fetchWithTimeout(
+  url: string,
+  options: RequestInit,
+  timeout = 5000
+): Promise<Response> {
   return Promise.race([
     fetch(url, options),
-        new Promise((_, reject) => setTimeout(() => reject(new Error('timeout')), timeout))
+    new Promise((_, reject) =>
+      setTimeout(() => reject(new Error("timeout")), timeout)
+    ),
   ]);
 }
 
 export class LanguageServer {
-    constructor(public baseUrl : string) {}
+  constructor(public baseUrl: string) {}
 
-    async fetchLanguages(timeout = 500) : Promise<language_matrix> {
+  async fetchLanguages(timeout = 500): Promise<language_matrix> {
     let data = {};
-        const res = await fetchWithTimeout(this.baseUrl + "/languages", {
+    const res = await fetchWithTimeout(
+      this.baseUrl + "/languages",
+      {
         headers: {
-                "Content-Type": "application/json"
+          "Content-Type": "application/json",
-            }
+        },
-        }, timeout);
+      },
+      timeout
+    );
     try {
       data = await res.json();
     } catch (e) {
-            throw new Error(`Parsing data from ${await res.text()}: ${e}`)
+      throw new Error(`Parsing data from ${await res.text()}: ${e}`);
     }
     try {
       return Object.fromEntries(
-                Object.values(data as language_matrix_entry []).map((obj : language_matrix_entry) => {
+        Object.values(data as language_matrix_entry[]).map(
-                    return [
+          (obj: language_matrix_entry) => {
-                        obj["code"],
+            return [obj["code"], obj];
-                        obj,
+          }
-                    ]
-                })
         )
-        } catch(e) {
+      );
-            throw new Error(`Can't extract values from data: ${JSON.stringify(data)}`)
+    } catch (e) {
+      throw new Error(
+        `Can't extract values from data: ${JSON.stringify(data)}`
+      );
     }
   }
 
   static async getDefault() {
     const settings = await Settings.getDefault();
-        return new LanguageServer(await settings.getLibretranslateBaseUrl() || LIBRETRANSLATE_BASE_URL);
+    return new LanguageServer(
+      (await settings.getLibretranslateBaseUrl()) || LIBRETRANSLATE_BASE_URL
+    );
   }
 }
 
 export class Translator {
-    constructor(public source : language_t, public defaultTarget : string = "en", private _languageServer : LanguageServer) {
+  constructor(
-    }
+    public source: language_t,
+    public defaultTarget: string = "en",
+    private _languageServer: LanguageServer
+  ) {}
 
   get languageServer() {
     return this._languageServer;
   }
 
-    async translate(text : string, target : string|undefined = undefined) {
+  async translate(text: string, target: string | undefined = undefined) {
     const url = this._languageServer.baseUrl + `/translate`;
-        const res = await fetch(url, {
+    console.log(url);
+    const postData = {
       method: "POST",
       body: JSON.stringify({
         q: text,
@@ -84,40 +101,55 @@ export class Translator {
         target: target || this.defaultTarget,
         format: "text",
         alternatives: 3,
-                api_key: ""
+        api_key: "",
       }),
-            headers: { "Content-Type": "application/json" }
+      headers: { "Content-Type": "application/json" },
-        });
+    };
 
+    console.debug("Requesting %s with %o", url, postData);
+
+    const res = await fetch(url, postData);
 
     const data = await res.json();
-        console.log(data)
+    if (res.status === 200) {
-        return data.translatedText
+      console.log(data);
+      return data.translatedText;
+    } else {
+      console.error("Status %d: %s", res.status, JSON.stringify(data));
+    }
   }
 
   static async getDefault(defaultTarget: string | undefined = undefined) {
     const settings = await Settings.getDefault();
-        const source = await settings.getHostLanguage();
+    const source = await settings.getHostLanguage() || "en";
-        return new Translator(source, defaultTarget, await LanguageServer.getDefault())
+    return new Translator(
+      source,
+      defaultTarget,
+      await LanguageServer.getDefault()
+    );
   }
 }
 
 export class CachedTranslator extends Translator {
-    async translate (text : string, target : string|undefined = undefined) {
+  async translate(text: string, target: string | undefined = undefined) {
     const targetKey = target || this.defaultTarget;
     // console.debug(`Translating from ${this.source} -> ${targetKey}`)
-        const key1 = `${this.source}::${targetKey}::${text}`
+    const key1 = `${this.source}::${targetKey}::${text}`;
     const tr1 = await cache.get(key1);
     if (tr1) return tr1;
     const tr2 = await super.translate(text, target);
-        const key2 = `${this.source}::${targetKey}::${text}`
+    const key2 = `${this.source}::${targetKey}::${text}`;
     await cache.set(key2, tr2);
     return tr2;
   }
 
   static async getDefault(defaultTarget: string | undefined = undefined) {
     const settings = await Settings.getDefault();
-        const source = await settings.getHostLanguage();
+    const source = await settings.getHostLanguage() || "en";
-        return new CachedTranslator(source, defaultTarget, await LanguageServer.getDefault())
+    return new CachedTranslator(
+      source,
+      defaultTarget,
+      await LanguageServer.getDefault()
+    );
   }
 }

app/lib/__tests__/settings.spec.tsx

@@ -1,18 +1,19 @@
 import { Settings } from '@/app/lib/settings';
-import { getDb } from '@/app/lib/db';
+import { getDb, migrateDb } from '@/app/lib/db';
-import { Knex } from 'knex';
+import { SQLiteDatabase } from 'expo-sqlite';
 
 describe('Settings', () => {
-    let settings : Settings;
+    let settings: Settings;
-    let db : Knex;
+    let db: SQLiteDatabase;
 
     beforeEach(async () => {
         db = await getDb("development");
-        settings = new Settings(db)
+        await migrateDb("development");
+        settings = new Settings(db);
     });
 
     afterEach(async () => {
-        await db.migrate.down();
+        await migrateDb("development", "down");
     });
 
     it('should set the host language in the database', async () => {

app/lib/__tests__/whisper.spec.tsx

@@ -1,101 +1,170 @@
-// components/ui/__tests__/WhisperFile.spec.tsx
+// app/lib/__tests__/whisper.spec.tsx
 
 import React from "react";
-import { render, act } from "@testing-library/react-native";
+import { getDb } from "@/app/lib/db";
-import { WhisperFile } from "@/app/lib/whisper"; // Adjust the import path as necessary
+import { WhisperFile, WhisperModelTag } from "@/app/lib/whisper"; // Corrected to use WhisperFile and WhisperModelTag instead of WhisperDownloader
+import { Settings } from "@/app/lib/settings";
+import { File } from "expo-file-system/next";
+jest.mock('expo-file-system');
+import * as FileSystem from 'expo-file-system';
+
+jest.mock("@/app/lib/db", () => ({
+  getDb: jest.fn().mockResolvedValue({
+    runAsync: jest.fn(),
+    upsert: jest.fn(), // Mock the upsert method used in addToDatabase
+  }),
+}));
+
+jest.mock("@/app/lib/settings", () => ({
+  Settings: {
+    getDefault: jest.fn(() => ({
+      getValue: jest.fn((key) => {
+        switch (key) {
+          case "whisper_model":
+            return "base";
+          default:
+            throw new Error(`Invalid setting: '${key}'`);
+        }
+      }),
+    })),
+  },
+}));
+
+
+jest.mock("expo-file-system/next", () => {
+  const _next = jest.requireActual("expo-file-system/next");
+  return {
+    ..._next,
+    File: jest.fn().mockImplementation(() => ({
+      ..._next.File,
+      text: jest.fn(() => {
+        return new String("text");
+      }),
+    })),
+  };
+});
 
 describe("WhisperFile", () => {
+  // Corrected to use WhisperFile instead of WhisperDownloader
   let whisperFile: WhisperFile;
 
-  beforeEach(() => {
+  beforeEach(async () => {
     whisperFile = new WhisperFile("small");
   });
 
-  it("should initialize correctly", () => {
+  it("should create a download resumable with existing data if available", async () => {
-    expect(whisperFile).toBeInstanceOf(WhisperFile);
+    const mockExistingData = "mockExistingData";
-  });
-
-  describe("getModelFileSize", () => {
-    it("should return the correct model file size", async () => {
-      expect(whisperFile.size).toBeUndefined();
-      await whisperFile.updateMetadata();
-      expect(whisperFile.size).toBeGreaterThan(1000);
-    });
-  });
-
-  describe("getWhisperDownloadStatus", () => {
-    it("should return the correct download status", async () => {
-      const mockStatus = {
-        doesTargetExist: true,
-        isDownloadComplete: false,
-        hasDownloadStarted: true,
-        progress: {
-          current: 100,
-          total: 200,
-          remaining: 100,
-          percentRemaining: 50.0,
-        },
-      };
-      jest
-        .spyOn(whisperFile, "getDownloadStatus")
-        .mockResolvedValue(mockStatus);
-
-      const result = await whisperFile.getDownloadStatus();
-
-      expect(result).toEqual(mockStatus);
-    });
-  });
-
-  describe("initiateWhisperDownload", () => {
-    it("should initiate the download with default options", async () => {
-      const mockModelLabel = "small";
-      jest
-        .spyOn(whisperFile, "createDownloadResumable")
-        .mockResolvedValue(true);
-
-      await whisperFile.initiateWhisperDownload(mockModelLabel);
-
-      expect(whisperFile.createDownloadResumable).toHaveBeenCalledWith(
-        mockModelLabel
-      );
-    });
-
-    it("should initiate the download with custom options", async () => {
-      const mockModelLabel = "small";
-      const mockOptions = { force_redownload: true };
-      jest
-        .spyOn(whisperFile, "createDownloadResumable")
-        .mockResolvedValue(true);
-
-      await whisperFile.initiateWhisperDownload(mockModelLabel, mockOptions);
-
-      expect(whisperFile.createDownloadResumable).toHaveBeenCalledWith(
-        mockModelLabel,
-        mockOptions
-      );
-    });
-
-    it("should return the correct download status when target exists and is complete", async () => {
     jest.spyOn(whisperFile, "doesTargetExist").mockResolvedValue(true);
-      jest.spyOn(whisperFile, "isDownloadComplete").mockResolvedValue(true);
 
-      expect(await whisperFile.doesTargetExist()).toEqual(true);
+    await whisperFile.createDownloadResumable();
-      expect(await whisperFile.isDownloadComplete()).toEqual(true);
+    // expect(whisperFile.targetFileName).toEqual("small.bin");
+    expect(whisperFile.targetPath).toContain("small.bin");
+
+    expect(FileSystem.createDownloadResumable).toHaveBeenCalledWith(
+      "https://huggingface.co/openai/whisper-small/resolve/main/pytorch_model.bin",
+      "file:///whisper/small.bin",
+      {},
+      expect.any(Function),
+      expect.anything(),
+    );
   });
 
-    it("should return the correct download status when target does not exist", async () => {
+  // it("should create a download resumable without existing data if not available", async () => {
-      jest.spyOn(whisperFile, "doesTargetExist").mockResolvedValue(false);
+  //   jest.spyOn(whisperFile, "doesTargetExist").mockResolvedValue(false);
 
-      const result = await whisperFile.getDownloadStatus();
+  //   await whisperFile.createDownloadResumable(); // Updated to use createDownloadResumable instead of download
 
-      expect(result).toEqual({
+  //   expect(FileSystem.createDownloadResumable).toHaveBeenCalledWith(
-        doesTargetExist: false,
+  //     "http://mock.model.com/model",
-        isDownloadComplete: false,
+  //     "mockTargetPath",
-        hasDownloadStarted: false,
+  //     {},
-        progress: undefined,
+  //     expect.any(Function),
-      });
+  //     undefined
-    });
+  //   );
-  });
+  // });
 
-  // Add more tests as needed for other methods in WhisperFile
+  // it("should update the download status in the database", async () => {
+  //   const mockRunAsync = jest.fn();
+  //   (getDb as jest.Mock).mockResolvedValue({ runAsync: mockRunAsync });
+
+  //   const downloadable = await whisperFile.createDownloadResumable(); // Updated to use createDownloadResumable instead of download
+  //   await downloadable.resumeAsync();
+
+  //   jest.advanceTimersByTime(1000);
+
+  //   expect(mockRunAsync).toHaveBeenCalled();
+  // });
+
+  // it("should record the latest target hash after downloading", async () => {
+  //   const mockRecordLatestTargetHash = jest.spyOn(
+  //     whisperFile,
+  //     "recordLatestTargetHash"
+  //   );
+
+  //   await whisperFile.createDownloadResumable(); // Updated to use createDownloadResumable instead of download
+
+  //   expect(mockRecordLatestTargetHash).toHaveBeenCalled();
+  // });
+
+  // it("should call the onData callback if provided", async () => {
+  //   const mockOnData = jest.fn();
+  //   const options = { onData: mockOnData };
+
+  //   await whisperFile.createDownloadResumable(options); // Updated to use createDownloadResumable instead of download
+
+  //   expect(mockOnData).toHaveBeenCalledWith(expect.any(Object));
+  // });
+
+  // describe("getDownloadStatus", () => {
+  //   it("should return the correct download status when model size is known and download has started", async () => {
+  //     whisperFile.size = 1024;
+  //     jest.spyOn(whisperFile, "doesTargetExist").mockResolvedValue(true);
+  //     jest.spyOn(whisperFile, "isDownloadComplete").mockResolvedValue(false);
+  //     jest.spyOn(whisperFile, "targetFile").mockReturnValue({
+  //       size: 512,
+  //     });
+
+  //     const status = await whisperFile.getDownloadStatus();
+
+  //     expect(status).toEqual({
+  //       doesTargetExist: true,
+  //       isDownloadComplete: false,
+  //       hasDownloadStarted: true,
+  //       progress: {
+  //         current: 512,
+  //         total: 1024,
+  //         remaining: 512,
+  //         percentRemaining: 50.0,
+  //       },
+  //     });
+  //   });
+
+  //   it("should return the correct download status when model size is known and download is complete", async () => {
+  //     whisperFile.size = 1024;
+  //     jest.spyOn(whisperFile, "doesTargetExist").mockResolvedValue(true);
+  //     jest.spyOn(whisperFile, "isDownloadComplete").mockResolvedValue(true);
+
+  //     const status = await whisperFile.getDownloadStatus();
+
+  //     expect(status).toEqual({
+  //       doesTargetExist: true,
+  //       isDownloadComplete: true,
+  //       hasDownloadStarted: false,
+  //       progress: undefined,
+  //     });
+  //   });
+
+  //   it("should return the correct download status when model size is unknown", async () => {
+  //     jest.spyOn(whisperFile, "doesTargetExist").mockResolvedValue(false);
+
+  //     const status = await whisperFile.getDownloadStatus();
+
+  //     expect(status).toEqual({
+  //       doesTargetExist: false,
+  //       isDownloadComplete: false,
+  //       hasDownloadStarted: false,
+  //       progress: undefined,
+  //     });
+  //   });
+  // });
 });

app/lib/db.ts

@@ -1,14 +1,16 @@
 import * as SQLite from "expo-sqlite";
 import { MIGRATE_UP, MIGRATE_DOWN } from "./migrations";
 
-export async function getDb() {
+export type db_mode = "development" | "staging" | "production";
-  return await SQLite.openDatabaseAsync("translation_terrace");
+
+export async function getDb(mode : db_mode = "production") {
+  return await SQLite.openDatabaseAsync(`translation_terrace_${mode}`);
 }
 
 
-export async function migrateDb(direction: "up" | "down" = "up") {
+export async function migrateDb(mode : db_mode = "production", direction: "up" | "down" = "up") {
 
-  const db = await getDb();
+  const db = await getDb(mode);
 
   const m = direction === "up" ? MIGRATE_UP : MIGRATE_DOWN;
 

app/lib/migrations.ts

@@ -2,15 +2,16 @@
 export const MIGRATE_UP = {
     1: [
       `CREATE TABLE IF NOT EXISTS settings (
-              host_language TEXT,
+          key TEXT PRIMARY KEY,
-              libretranslate_base_url TEXT,
+          value TEXT
-              ui_direction INTEGER,
-              whisper_model TEXT
         )`,
     ],
     2: [
       `CREATE TABLE IF NOT EXISTS whisper_models (
               model TEXT PRIMARY KEY,
+              download_status STRING(255),
+              expected_size INTEGER,
+              last_hash STRING(1024),
               bytes_done INTEGER,
               bytes_total INTEGER
           )`,

app/lib/readstream.ts

@@ -0,0 +1,61 @@
+/* eslint-disable unicorn/no-null */
+import * as fs from 'expo-file-system';
+import { Readable } from 'readable-stream';
+
+class ExpoReadStream extends Readable {
+  private readonly fileUri: string;
+  private fileSize: number;
+  private currentPosition: number;
+  private readonly chunkSize: number;
+
+  constructor(fileUri: string, options: fs.ReadingOptions) {
+    super();
+    this.fileUri = fileUri;
+    this.fileSize = 0; // Initialize file size (could be fetched if necessary)
+    this.currentPosition = options.position ?? 0;
+    /**
+     * Default chunk size in bytes. React Native Expo will OOM at 110MB, so we set this to 1/100 of it to balance speed and memory usage and importantly the feedback for user.
+     * If this is too large, the progress bar will be stuck when down stream processing this chunk.
+     */
+    this.chunkSize = options.length ?? 1024 * 1024;
+    void this._init();
+  }
+
+  async _init() {
+    try {
+      const fileInfo = await fs.getInfoAsync(this.fileUri, { size: true });
+      if (fileInfo.exists) {
+        this.fileSize = fileInfo.size ?? 0;
+      } else {
+        this.fileSize = 0;
+      }
+    } catch (error) {
+      this.emit('error', error);
+    }
+  }
+
+  _read() {
+    const readingOptions = {
+      encoding: fs.EncodingType.Base64,
+      position: this.currentPosition,
+      length: this.chunkSize,
+    } satisfies fs.ReadingOptions;
+    fs.readAsStringAsync(this.fileUri, readingOptions).then(chunk => {
+      if (chunk.length === 0) {
+        // End of the stream
+        this.emit('progress', 1);
+        this.push(null);
+      } else {
+        this.currentPosition = Math.min(this.chunkSize + this.currentPosition, this.fileSize);
+        this.emit('progress', this.fileSize === 0 ? 0.5 : (this.currentPosition / this.fileSize));
+        this.push(Buffer.from(chunk, 'base64'));
+      }
+    }).catch(error => {
+      this.emit('error', error);
+    });
+  }
+}
+
+export function createReadStream(fileUri: string, options: { encoding?: fs.EncodingType; end?: number; highWaterMark?: number; start?: number } = {}): ExpoReadStream {
+  return new ExpoReadStream(fileUri, options);
+}

app/lib/settings.ts

@@ -1,5 +1,6 @@
+import { SQLiteDatabase } from "expo-sqlite";
 import { getDb } from "./db";
-import { Knex } from "knex";
+import { WhisperFile, whisper_model_tag_t } from "./whisper";
 
 export class Settings {
 
@@ -10,7 +11,7 @@ export class Settings {
         "whisper_model",
     ]
 
-    constructor(public db: Knex) {
+    constructor(public db: SQLiteDatabase) {
 
     }
 
@@ -20,9 +21,9 @@ export class Settings {
             throw new Error(`Invalid setting: '${key}'`)
         }
 
-        const row = await this.db("settings").select(key).limit(1).first();
+        const row: { value: string } | null = this.db.getFirstSync(`SELECT value FROM settings WHERE key = ?`, key)
-        if (!(row && row[key])) return undefined;
+
-        return row[key];
+        return row?.value;
     }
 
 
@@ -32,17 +33,11 @@ export class Settings {
         }
 
         // Check if the key already exists
-        const [exists] = await this.db("settings").select(1).whereNotNull(key).limit(1);
+        this.db.runSync(`INSERT OR REPLACE INTO
-
+            settings
-        if (exists) {
+                (key, value)
-            // Update the existing column
+            VALUES
-            await this.db("settings").update({ [key]: value });
+                (?, ?)`, key, value);
-        } else {
-            // Insert a new value into the specified column
-            const insertData: { [key: string]: any } = {};
-            insertData[key] = value;
-            await this.db("settings").insert(insertData);
-        }
     }
 
     async setHostLanguage(value: string) {
@@ -53,7 +48,7 @@ export class Settings {
         return await this.getValue("host_language")
     }
 
-    async setLibretranslateBaseUrl(value : string) {
+    async setLibretranslateBaseUrl(value: string) {
         await this.setValue("libretranslate_base_url", value)
     }
 
@@ -61,16 +56,15 @@ export class Settings {
         return await this.getValue("libretranslate_base_url")
     }
 
-    async setWhisperModel(value : string) {
+    async setWhisperModel(value: string) {
         await this.setValue("whisper_model", value);
     }
 
     async getWhisperModel() {
-        return await this.getValue("whisper_model");
+        return await this.getValue("whisper_model") as whisper_model_tag_t;
     }
 
     static async getDefault() {
         return new Settings(await getDb())
     }
-
 }

app/lib/util.ts

@@ -0,0 +1,9 @@
+import { TextDecoder } from "util";
+
+export function arrbufToStr(arrayBuffer : ArrayBuffer) {
+    return new TextDecoder().decode(new Uint8Array(arrayBuffer));
+}
+
+export function strToArrBuf(input : string) : Uint8Array<ArrayBufferLike> {
+    return new TextEncoder().encode(input)
+}

app/lib/whisper.ts

@@ -1,348 +1,14 @@
-import { Platform } from "react-native";
-import * as FileSystem from "expo-file-system";
 import { File, Paths } from "expo-file-system/next";
-import { getDb } from "./db";
+import FileSystem from "expo-file-system"
-import * as Crypto from "expo-crypto";
+import { pathToFileURLString } from "expo-file-system/src/next/pathUtilities/url";
 
-export const WHISPER_MODEL_PATH = Paths.join(
+export const WHISPER_MODEL_PATH = Paths.join("..", "..", "assets", "whisper");
-  FileSystem.documentDirectory || "file:///",
-  "whisper"
-);
 export const WHISPER_MODEL_DIR = new File(WHISPER_MODEL_PATH);
 
-// Thanks to https://medium.com/@fabi.mofar/downloading-and-saving-files-in-react-native-expo-5b3499adda84
+export const WHISPER_MODEL_SMALL_PATH = "file://../../assets/whisper/whisper-small.bin";
 
-export async function saveFile(
-  uri: string,
-  filename: string,
-  mimetype: string
-) {
-  if (Platform.OS === "android") {
-    const permissions =
-      await FileSystem.StorageAccessFramework.requestDirectoryPermissionsAsync();
 
-    if (permissions.granted) {
+export async function whisperModelExists() {
-      const base64 = await FileSystem.readAsStringAsync(uri, {
+  const file = new File(WHISPER_MODEL_PATH);
-        encoding: FileSystem.EncodingType.Base64,
+  return file.exists;
-      });
-
-      await FileSystem.StorageAccessFramework.createFileAsync(
-        permissions.directoryUri,
-        filename,
-        mimetype
-      )
-        .then(async (uri) => {
-          await FileSystem.writeAsStringAsync(uri, base64, {
-            encoding: FileSystem.EncodingType.Base64,
-          });
-        })
-        .catch((e) => console.log(e));
-    } else {
-      shareAsync(uri);
-    }
-  } else {
-    shareAsync(uri);
-  }
 }
-
-function shareAsync(uri: string) {
-  throw new Error("Function not implemented.");
-}
-
-export const WHISPER_MODEL_TAGS = ["small", "medium", "large"];
-export type whisper_model_tag_t = "small" | "medium" | "large";
-
-export const WHISPER_MODELS = {
-  small: {
-    source:
-      "https://huggingface.co/openai/whisper-small/blob/resolve/pytorch_model.bin",
-    target: "small.bin",
-    label: "Small",
-    size: 967092419,
-  },
-  medium: {
-    source:
-      "https://huggingface.co/openai/whisper-medium/resolve/main/pytorch_model.bin",
-    target: "medium.bin",
-    label: "Medium",
-    size: 3055735323,
-  },
-  large: {
-    source:
-      "https://huggingface.co/openai/whisper-large/resolve/main/pytorch_model.bin",
-    target: "large.bin",
-    label: "Large",
-    size: 6173629930,
-  },
-} as {
-  [key:whisper_model_tag_t]: {
-    source: string;
-    target: string;
-    label: string;
-    size: number;
-  };
-};
-
-export type whisper_tag_t = "small" | "medium" | "large";
-export type hf_channel_t = "raw" | "resolve";
-
-export const HF_URL_BASE = "https://huggingface.co/openai/whisper-";
-export const HF_URL_RAW = "raw";
-export const HF_URL_RESOLVE = "resolve";
-export const HF_URL_END = "/main/pytorch_model.bin";
-
-export function create_hf_url(tag: whisper_tag_t, channel: hf_channel_t) {
-  return `${HF_URL_BASE}${tag}/${channel}${HF_URL_END}`;
-}
-
-export type hf_metadata_t = {
-  version: string;
-  oid: string;
-  size: string;
-};
-
-export type download_status_t = {
-  doesTargetExist: boolean;
-  isDownloadComplete: boolean;
-  hasDownloadStarted: boolean;
-  progress?: {
-    current: number;
-    total: number;
-    remaining: number;
-    percentRemaining: number;
-  };
-};
-
-export class WhisperFile {
-  constructor(
-    public tag: whisper_model_tag_t,
-    private targetFileName?: string,
-    public label?: string,
-    public size?: number
-  ) {
-    this.targetFileName = this.targetFileName || `${tag}.bin`;
-    this.label =
-      this.label || `${tag[0].toUpperCase}${tag.substring(1).toLowerCase()}`;
-  }
-
-  get targetPath() {
-    return Paths.join(WHISPER_MODEL_DIR, this.targetFileName as string);
-  }
-
-  get targetFile() {
-    return new File(this.targetPath);
-  }
-
-  async getTargetInfo() {
-    return await FileSystem.getInfoAsync(this.targetPath);
-  }
-
-  async doesTargetExist() {
-    return (await this.getTargetInfo()).exists;
-  }
-
-  public async recordLatestTargetHash() {
-    if (!(await this.doesTargetExist())) {
-      console.debug("%s does not exist", this.targetPath);
-    }
-    const digest1Str = await this.getActualTargetHash();
-    if (!digest1Str) {
-      return;
-    }
-    const db = await getDb();
-    await db("whisper_models")
-      .upsert({
-        model: this.tag,
-        last_hash: digest1Str,
-      })
-      .where({ model: this.tag });
-  }
-
-  public async getRecordedTargetHash(): Promise<string> {
-    const db = await getDb();
-    const row = await db("whisper_models").select("last_hash").where({
-      model: this.tag,
-    }).first();
-    return row["last_hash"]
-  }
-
-  public async getActualTargetHash(): Promise<string | undefined> {
-    if (!(await this.doesTargetExist())) {
-      console.debug("%s does not exist", this.targetPath);
-      return undefined;
-    }
-    const digest1 = await Crypto.digest(
-      Crypto.CryptoDigestAlgorithm.SHA256,
-      this.targetFile.bytes()
-    );
-    const digest1Str = new TextDecoder().decode(new Uint8Array(digest1));
-    return digest1Str;
-  }
-
-  async isTargetCorrupted() {
-    const recordedTargetHash = await this.getRecordedTargetHash();
-    const actualTargetHash = await this.getActualTargetHash();
-    if (!(actualTargetHash || recordedTargetHash)) return false;
-    return actualTargetHash !== recordedTargetHash;
-  }
-
-  async isDownloadComplete() {
-    if (!(await this.doesTargetExist())) {
-      console.debug("%s does not exist", this.targetPath);
-      return false;
-    }
-    const data = this.targetFile.bytes();
-    const meta = await this.fetchMetadata();
-    const expectedHash = meta.oid;
-    const digest1: ArrayBuffer = await Crypto.digest(
-      Crypto.CryptoDigestAlgorithm.SHA256,
-      data
-    );
-    const digest1Str = new TextDecoder().decode(new Uint8Array(digest1));
-    const doesMatch = digest1Str === expectedHash;
-    if (!doesMatch) {
-      console.debug(
-        "sha256 of '%s' does not match expected '%s'",
-        digest1Str,
-        expectedHash
-      );
-      return false;
-    }
-    return true;
-  }
-
-  delete(ignoreErrors = true) {
-    try {
-      this.targetFile.delete();
-    } catch (err) {
-      console.error(err);
-      if (!ignoreErrors) {
-        throw err;
-      }
-    }
-    console.debug("Created %s", WHISPER_MODEL_DIR);
-  }
-
-  get modelUrl() {
-    return create_hf_url(this.tag, "resolve");
-  }
-
-  get metadataUrl() {
-    return create_hf_url(this.tag, "raw");
-  }
-
-  private async fetchMetadata(): Promise<hf_metadata_t> {
-    try {
-      const resp = await fetch(this.metadataUrl, {
-        credentials: "include",
-        headers: {
-          "User-Agent":
-            "Mozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0",
-          Accept:
-            "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
-          "Accept-Language": "en-US,en;q=0.5",
-          "Sec-GPC": "1",
-          "Upgrade-Insecure-Requests": "1",
-          "Sec-Fetch-Dest": "document",
-          "Sec-Fetch-Mode": "navigate",
-          "Sec-Fetch-Site": "cross-site",
-          "If-None-Match": '"8fa71cbce85078986b46fb97caec22039e73351a"',
-          Priority: "u=0, i",
-        },
-        method: "GET",
-        mode: "cors",
-      });
-      const text = await resp.text();
-      return Object.fromEntries(
-        text.split("\n").map((line) => line.split(" "))
-      ) as hf_metadata_t;
-    } catch (err) {
-      console.error("Failed to fetch %s: %s", this.metadataUrl, err);
-      throw err;
-    }
-  }
-
-  async updateMetadata() {
-    const metadata = await this.fetchMetadata();
-    this.size = Number.parseInt(metadata.size);
-  }
-
-  async addToDatabase() {
-    const db = await getDb();
-    await db("whisper_models").upsert({
-      model: this.tag,
-      expected_size: this.size,
-    }).where({
-      model: this.tag,
-    });
-  }
-
-  async createDownloadResumable(
-    options: {
-      onData?: DownloadCallback | undefined;
-    } = {
-      onData: undefined,
-    }
-  ) {
-    const existingData = (await this.doesTargetExist())
-      ? this.targetFile.text()
-      : undefined;
-
-    if (await this.doesTargetExist()) {
-    }
-
-    return FileSystem.createDownloadResumable(
-      this.modelUrl,
-      this.targetPath,
-      {},
-      async (data: FileSystem.DownloadProgressData) => {
-        const db = await getDb();
-        await db.upsert({
-          model: this.tag,
-          download_status: "active",
-        })
-        await this.recordLatestTargetHash();
-        if (options.onData) await options.onData(data);
-      },
-      existingData ? existingData : undefined
-    );
-  }
-
-  async getDownloadStatus() : Promise<download_status_t> {
-    const doesTargetExist = await this.doesTargetExist();
-    const isDownloadComplete = await this.isDownloadComplete();
-    const hasDownloadStarted = doesTargetExist && !isDownloadComplete;
-
-    if (!this.size) {
-      return {
-        doesTargetExist: false,
-        isDownloadComplete: false,
-        hasDownloadStarted: false,
-        progress: undefined,
-      }
-    }
-
-    const remaining = hasDownloadStarted
-      ? this.size - (this.targetFile.size as number)
-      : 0;
-
-    const progress = hasDownloadStarted
-      ? {
-          current: this.targetFile.size || 0,
-          total: this.size,
-          remaining: this.size - (this.targetFile.size as number),
-          percentRemaining: (remaining / this.size) * 100.0,
-        }
-      : undefined;
-
-    return {
-      doesTargetExist,
-      isDownloadComplete,
-      hasDownloadStarted,
-      progress,
-    };
-  }
-}
-
-
-export type DownloadCallback = (arg0: FileSystem.DownloadProgressData) => any;

components/ConversationThread.tsx

@@ -1,9 +1,27 @@
 import React, { useState, useEffect } from "react";
-import { ScrollView, StyleSheet, Text, TouchableHighlight, View } from "react-native";
+import {
+  Alert,
+  ScrollView,
+  StyleSheet,
+  Text,
+  TouchableHighlight,
+  View,
+} from "react-native";
 import { useNavigation, Route } from "@react-navigation/native";
 import { Conversation, Message } from "@/app/lib/conversation";
 import MessageBubble from "@/components/ui/MessageBubble";
-import { CachedTranslator, LanguageServer, language_matrix_entry } from "@/app/i18n/api";
+import {
+  CachedTranslator,
+  LanguageServer,
+  language_matrix_entry,
+} from "@/app/i18n/api";
+import {
+  WHISPER_MODEL_SMALL_PATH,
+  whisperModelExists,
+} from "@/app/lib/whisper";
+import { initWhisper, WhisperContext } from "whisper.rn";
+import { useAudioRecorder, AudioModule, RecordingPresets } from "expo-audio";
+import FileSystem from "expo-file-system";
 
 const lasOptions = {
   sampleRate: 32000, // default is 44100 but 32000 is adequate for accurate voice recognition
@@ -14,11 +32,19 @@ const lasOptions = {
 };
 // LiveAudioStream.init(lasOptions as any);
 
-const ConversationThread = ({ route } : {route?: Route<"Conversation", {conversation : Conversation}>}) => {
+const ConversationThread = ({
+  route,
+}: {
+  route?: Route<"Conversation", { conversation: Conversation }>;
+}) => {
   const navigation = useNavigation();
 
   if (!route) {
-    return (<View><Text>Missing Params!</Text></View>)
+    return (
+      <View>
+        <Text>Missing Params!</Text>
+      </View>
+    );
   }
 
   /* 2. Get the param */
@@ -27,37 +53,94 @@ const ConversationThread = ({ route } : {route?: Route<"Conversation", {conversa
   const [messages, setMessages] = useState<Message[]>([]);
   const [guestSpeak, setGuestSpeak] = useState<string | undefined>();
   const [guestSpeakLoaded, setGuestSpeakLoaded] = useState<boolean>(false);
+  const [whisperContext, setWhisperContext] = useState<
+    WhisperContext | undefined
+  >();
   const [cachedTranslator, setCachedTranslator] = useState<
     undefined | CachedTranslator
   >();
 
-  const [languageLabels, setLanguageLabels] = useState<undefined | {
+  const [languageLabels, setLanguageLabels] = useState<
+    | undefined
+    | {
         hostNative: {
-      host: string,
+          host: string;
-      guest: string,
+          guest: string;
-    },
+        };
         guestNative: {
-      host: string,
+          host: string;
-      guest: string,
+          guest: string;
+        };
       }
-  }>()
+  >();
+
+  // recorder settings
+  const audioRecorder = useAudioRecorder(RecordingPresets.HIGH_QUALITY);
+
+  const record = async () => {
+    await audioRecorder.prepareToRecordAsync();
+    audioRecorder.record();
+  };
+
+  const stopRecording = async () => {
+    // The recording will be available on `audioRecorder.uri`.
+    await audioRecorder.stop();
+  };
 
   useEffect(() => {
-    (async () => {
+    (async function () {
-
       const languageServer = await LanguageServer.getDefault();
-      const languages = await languageServer.fetchLanguages();
+      try {
-      const cc = new CachedTranslator(
+        const languages = await languageServer.fetchLanguages(5000);
+        const cachedTranslator = new CachedTranslator(
           "en",
           conversation.guest.language,
-        languageServer,
+          languageServer
-      )
+        );
-      setCachedTranslator(cc);
+        console.log("Set cached translator from %s", languageServer.baseUrl);
-      setGuestSpeak(await cc.translate("Speak"));
+        setCachedTranslator(cachedTranslator);
+
+        try {
+          if (!(await whisperModelExists())) {
+            throw new Error(`${WHISPER_MODEL_SMALL_PATH} does not exist`);
+          }
+        } catch (err) {
+          console.error(
+            `Could not determine if %s exists: %s`,
+            WHISPER_MODEL_SMALL_PATH,
+            err
+          );
+          throw err;
+        }
+
+        try {
+          setWhisperContext(
+            await initWhisper({
+              filePath: WHISPER_MODEL_SMALL_PATH,
+            })
+          );
+        } catch (err) {
+          console.error(err);
+          throw err;
+        }
+
+        // recorder settings
+
+        (async () => {
+          const status = await AudioModule.requestRecordingPermissionsAsync();
+          if (!status.granted) {
+            Alert.alert("Permission to access microphone was denied");
+          }
+        })();
+        setGuestSpeak(await cachedTranslator.translate("Speak"));
         const hostLang1 = languages[conversation.host.language].name;
         const guestLang1 = languages[conversation.host.language].name;
-      const hostLang2 = await cc.translate(languages[conversation.host.language].name);
+        const hostLang2 = await cachedTranslator.translate(
-      const guestLang2 = await cc.translate(languages[conversation.host.language].name);
+          languages[conversation.host.language].name
+        );
+        const guestLang2 = await cachedTranslator.translate(
+          languages[conversation.host.language].name
+        );
         setLanguageLabels({
           hostNative: {
             host: hostLang1,
@@ -66,21 +149,32 @@ const ConversationThread = ({ route } : {route?: Route<"Conversation", {conversa
           guestNative: {
             host: hostLang2,
             guest: guestLang2,
+          },
+        });
+      } catch (err) {
+        console.error(
+          "Could not set translator from %s: %s",
+          languageServer.baseUrl,
+          err
+        );
       }
-      })
     })();
 
     const updateMessages = (c: Conversation) => {
       setMessages([...c]);
     };
 
-    conversation.onAddMessage = updateMessages;
+    if (!conversation) {
-    conversation.onTranslationDone = updateMessages;
+      console.warn("Conversation is null or undefined.");
+    }
 
-    return () => {
+    conversation.on("add_message", updateMessages);
-      conversation.onAddMessage = undefined;
+    conversation.on("translation_done", updateMessages);
-      conversation.onTranslationDone = undefined;
+
-    };
+    // return () => {
+    //   conversation.on("add_message", undefined);
+    //   conversation.on("translation_done", undefined);
+    // };
   }, [conversation, guestSpeak]);
 
   const renderMessages = () =>
@@ -90,11 +184,17 @@ const ConversationThread = ({ route } : {route?: Route<"Conversation", {conversa
 
   return cachedTranslator ? (
     <View style={{ flex: 1, flexDirection: "column" }}>
-      {languageLabels && (<View style={styles.languageLabels}>
+      {languageLabels && (
-        <Text style={styles.nativeHostLabel}>{ languageLabels.hostNative.host } / { languageLabels.hostNative.guest }</Text>
+        <View style={styles.languageLabels}>
-        <Text style={styles.nativeGuestLabel}>{ languageLabels.guestNative.host } / { languageLabels.guestNative.guest }</Text>
+          <Text style={styles.nativeHostLabel}>
-      </View>)
+            {languageLabels.hostNative.host} / {languageLabels.hostNative.guest}
-      }
+          </Text>
+          <Text style={styles.nativeGuestLabel}>
+            {languageLabels.guestNative.host} /{" "}
+            {languageLabels.guestNative.guest}
+          </Text>
+        </View>
+      )}
       <ScrollView
         style={{
           borderColor: "black",
@@ -134,15 +234,9 @@ const ConversationThread = ({ route } : {route?: Route<"Conversation", {conversa
 };
 
 const styles = StyleSheet.create({
-  languageLabels: {
+  languageLabels: {},
-
+  nativeHostLabel: {},
-  },
+  nativeGuestLabel: {},
-  nativeHostLabel: {
+});
-
-  },
-  nativeGuestLabel: {
-
-  },
-})
 
 export default ConversationThread;

components/LanguageSelection.tsx

@@ -8,6 +8,7 @@ import { SafeAreaProvider, SafeAreaView } from "react-native-safe-area-context";
 import { Conversation, Speaker } from "@/app/lib/conversation";
 import { NavigationProp, ParamListBase } from "@react-navigation/native";
 import { Link, useNavigation } from "expo-router";
+import { migrateDb } from "@/app/lib/db";
 
 
 export function LanguageSelection(props: {
@@ -17,7 +18,7 @@ export function LanguageSelection(props: {
 }) {
   const [languages, setLanguages] = useState<language_matrix | undefined>();
   const [languagesLoaded, setLanguagesLoaded] = useState<boolean>(false);
-  const [translator, setTranslator] = useState<Translator|undefined>();
+  const [translator, setTranslator] = useState<Translator | undefined>();
 
   const nav = useNavigation();
 
@@ -30,11 +31,12 @@ export function LanguageSelection(props: {
 
   useEffect(() => {
     (async () => {
+      await migrateDb();
       try {
         // Replace with your actual async data fetching logic
         setTranslator(await CachedTranslator.getDefault());
         const languageServer = await LanguageServer.getDefault();
-        const languages = await languageServer.fetchLanguages(5000);
+        const languages = await languageServer.fetchLanguages(10000);
         setLanguages(languages);
         setLanguagesLoaded(true);
       } catch (error) {
@@ -49,8 +51,8 @@ export function LanguageSelection(props: {
         <Text>Settings</Text>
       </Pressable>
       <ScrollView >
-        <SafeAreaProvider >
+        <SafeAreaProvider>
-          <SafeAreaView>
+          <SafeAreaView style={styles.table}>
             {(languages && languagesLoaded) ? Object.entries(languages).filter((l) => (LANG_FLAGS as any)[l[0]] !== undefined).map(
               ([lang, lang_entry]) => {
                 return (
@@ -66,11 +68,15 @@ export function LanguageSelection(props: {
   )
 }
 
+const DEBUG_BORDER = {
+  borderWidth: 3,
+  borderStyle: "dotted",
+  borderColor: "blue",
+}
+
 const styles = StyleSheet.create({
-  column: {
+  table: {
-    flex: 1,
+    flexDirection: "row",
-    flexDirection: 'row',
+    flexWrap: "wrap",
-    flexWrap: 'wrap',
-    padding: 8,
   },
 })

components/Settings.tsx

@@ -1,22 +1,11 @@
 import React, { useState, useEffect } from "react";
-import { View, Text, TextInput, Pressable, StyleSheet } from "react-native";
+import { View, Text, TextInput, StyleSheet } from "react-native";
-import {
-  WhisperFile,
-  download_status_t,
-  whisper_tag_t,
-} from "@/app/lib/whisper";
 import { Settings } from "@/app/lib/settings";
 import { Picker } from "@react-native-picker/picker";
 import {
   LanguageServer,
   language_matrix,
-  language_matrix_entry,
 } from "@/app/i18n/api";
-const WHISPER_MODELS = {
-  small: new WhisperFile("small"),
-  medium: new WhisperFile("medium"),
-  large: new WhisperFile("large"),
-};
 
 const LIBRETRANSLATE_BASE_URL = "https://translate.argosopentech.com/translate";
 
@@ -32,34 +21,17 @@ const SettingsComponent = () => {
     success: boolean;
     error?: string;
   } | null>(null);
-  const [whisperModel, setWhisperModel] =
-    useState<keyof typeof WHISPER_MODELS>("small");
-  const [downloader, setDownloader] = useState<any>(null);
-  const [whisperFile, setWhisperFile] = useState<WhisperFile | undefined>();
-  const [downloadStatus, setDownloadStatus] = useState<
-    undefined | download_status_t
-  >();
-  const [statusTimeout, setStatusTimeout] = useState<
-    NodeJS.Timeout | undefined
-  >();
 
   useEffect(() => {
-    loadSettings();
+    (async function () {
-  }, []);
-
-  const getLanguageOptions = async () => {
-    const languageServer = await LanguageServer.getDefault();
-    setLanguageOptions(await languageServer.fetchLanguages());
-  };
-
-  const loadSettings = async () => {
       const settings = await Settings.getDefault();
       setHostLanguage((await settings.getHostLanguage()) || "en");
       setLibretranslateBaseUrl(
         (await settings.getLibretranslateBaseUrl()) || LIBRETRANSLATE_BASE_URL
       );
-    setWhisperModel(await settings.getWhisperModel());
+    })();
-  };
+  });
+
 
   const handleHostLanguageChange = async (lang: string) => {
     const settings = await Settings.getDefault();
@@ -77,56 +49,17 @@ const SettingsComponent = () => {
   const checkLangServerConnection = async (baseUrl: string) => {
     try {
       // Replace with actual connection check logic
-      setLangServerConn({ success: true });
+      const testResult = await fetch(baseUrl, {
+        method: "HEAD",
+      });
+      if (testResult.status !== 200) {
+        setLangServerConn({ success: true, error: testResult.statusText });
+      }
     } catch (error) {
       setLangServerConn({ success: false, error: `${error}` });
     }
   };
 
-  const intervalUpdateDownloadStatus = async () => {
-    if (!whisperFile) return;
-    const status = await whisperFile.getDownloadStatus();
-    setDownloadStatus(status);
-  };
-
-  const handleWhisperModelChange = async (model: whisper_tag_t) => {
-    const settings = await Settings.getDefault();
-    await settings.setWhisperModel(model);
-    setWhisperModel(model);
-    setWhisperFile(new WhisperFile(model));
-  };
-
-  const doDownload = async () => {
-    if (!whisperModel) {
-      throw new Error("Could not start download because whisperModel not set.");
-    }
-
-    console.log("Starging download of %s", whisperModel)
-
-    const whisperFile = new WhisperFile(whisperModel);
-
-    const resumable = await whisperFile.createDownloadResumable();
-    setDownloader(resumable);
-    try {
-      await resumable.downloadAsync();
-      const statusTimeout = setInterval(intervalUpdateDownloadStatus, 200);
-      setStatusTimeout(statusTimeout);
-    } catch (error) {
-      console.error("Failed to download whisper model:", error);
-    }
-  };
-
-  const doStopDownload = async () => {
-    downloader.cancelAsync();
-    setDownloader(null);
-  };
-
-  const doDelete = async () => {
-    const whisperFile = WHISPER_MODELS[whisperModel];
-    whisperFile.delete();
-    setStatusTimeout(undefined);
-  };
-
   return hostLanguage && libretranslateBaseUrl ? (
     <View style={styles.container}>
       <Text style={styles.label}>Host Language:</Text>
@@ -159,47 +92,6 @@ const SettingsComponent = () => {
             Error connecting to {libretranslateBaseUrl}: {langServerConn.error}
           </Text>
         ))}
-      <Picker
-        selectedValue={whisperModel}
-        style={{ height: 50, width: "100%" }}
-        onValueChange={handleWhisperModelChange}
-        accessibilityHint="whisper models"
-      >
-        {Object.entries(WHISPER_MODELS).map(([key, whisperFile]) => (
-          <Picker.Item
-            key={whisperFile.tag}
-            label={whisperFile.label}
-            value={key}
-          />
-        ))}
-      </Picker>
-      <View>
-        {whisperModel &&
-          (downloadStatus?.isDownloadComplete ? (
-            downloadStatus?.doesTargetExist ? (
-              <Pressable onPress={doDelete}>
-                <Text>DELETE {whisperModel.toUpperCase()}</Text>
-              </Pressable>
-            ) : (
-              <Pressable onPress={doStopDownload}>
-                <Text>PAUSE</Text>
-              </Pressable>
-            )
-          ) : (
-            <Pressable onPress={doDownload}>
-              <Text>DOWNLOAD {whisperModel.toUpperCase()}</Text>
-            </Pressable>
-          ))}
-        {downloadStatus?.progress && (
-          <View>
-            <Text>
-              {downloadStatus.progress.current} of{" "}
-              {downloadStatus.progress.total} (
-              {downloadStatus.progress.percentRemaining} %){" "}
-            </Text>
-          </View>
-        )}
-      </View>
     </View>
   ) : (
     <View>
@@ -214,11 +106,12 @@ const styles = StyleSheet.create({
     flexDirection: "row",
   },
   downloadButton: {
-    backgroundColor: "darkblue",
+    backgroundColor: "#236b9f",
     padding: 20,
     margin: 10,
-    flex: 3,
+    flex: 1,
     flexDirection: "column",
+    alignItems: "center",
   },
   deleteButton: {
     backgroundColor: "darkred",
@@ -236,11 +129,11 @@ const styles = StyleSheet.create({
   },
   buttonText: {
     color: "#fff",
-    flex: 1,
+    // flex: 1,
-    fontSize: 16,
+    // fontSize: 16,
-    alignSelf: "center",
+    // alignSelf: "center",
-    textAlign: "center",
+    // textAlign: "center",
-    textAlignVertical: "top",
+    // textAlignVertical: "top",
   },
   container: {
     flex: 1,

components/__tests__/index.spec.tsx

@@ -1,5 +1,5 @@
 jest.mock("@/app/i18n/api", () => require("../../__mocks__/api.ts"));
-import { renderRouter} from 'expo-router/testing-library';
+import { renderRouter } from "expo-router/testing-library";
 import React from "react";
 import {
   act,
@@ -13,14 +13,21 @@ import {
   createNavigationContainerRef,
 } from "@react-navigation/native";
 import TTNavStack from "../TTNavStack";
+import { migrateDb } from "@/app/lib/db";
 
 describe("Navigation", () => {
-  beforeEach(() => {
+  beforeEach(async () => {
+    await migrateDb("development", "up");
     // Reset the navigation state before each test
-    jest.clearAllMocks();
     jest.useFakeTimers();
   });
 
+  afterEach(async () => {
+    await migrateDb("development", "down");
+    jest.clearAllMocks();
+    jest.useRealTimers();
+  });
+
   it("Navigates to ConversationThread on language selection", async () => {
     const MockComponent = jest.fn(() => <TTNavStack />);
     renderRouter(
@@ -28,7 +35,7 @@ describe("Navigation", () => {
         index: MockComponent,
       },
       {
-        initialUrl: '/',
+        initialUrl: "/",
       }
     );
     const languageSelectionText = await waitFor(() =>
@@ -47,14 +54,16 @@ describe("Navigation", () => {
         index: MockComponent,
       },
       {
-        initialUrl: '/',
+        initialUrl: "/",
       }
     );
     const settingsButton = await waitFor(() =>
       screen.getByText(/.*Settings.*/i)
     );
     fireEvent.press(settingsButton);
-    expect(await waitFor(() => screen.getByText(/Settings/i))).toBeOnTheScreen();
+    expect(
+      await waitFor(() => screen.getByText(/Settings/i))
+    ).toBeOnTheScreen();
     // expect(waitFor(() => screen.getByText(/Settings/i))).toBeTruthy()
     expect(screen.getByText("Settings")).toBeOnTheScreen();
   });

components/ui/ISpeakButton.tsx

@@ -106,7 +106,9 @@ const ISpeakButton = (props: ISpeakButtonProps) => {
         <View style={styles.flag}>
           {countries &&
             countries.map((c) => {
-              return <CountryFlag isoCode={c} size={25} key={c} />;
+              return (
+                <CountryFlag isoCode={c} size={25} key={c} />
+              );
             })}
         </View>
         <View>
@@ -121,14 +123,13 @@ const ISpeakButton = (props: ISpeakButtonProps) => {
 
 const styles = StyleSheet.create({
   button: {
-    width: "20%",
     borderRadius: 10,
     borderColor: "white",
     borderWidth: 1,
     borderStyle: "solid",
     height: 110,
-    alignSelf: "flex-start",
+    width: 170,
-    margin: 8,
+    margin: 10,
   },
   flag: {},
   iSpeak: {

components/ui/__tests__/Settings.spec.tsx

@@ -3,9 +3,10 @@ import { render, screen, fireEvent, act } from "@testing-library/react-native";
 import SettingsComponent from "@/components/Settings";
 import { language_matrix } from "@/app/i18n/api";
 import { Settings } from "@/app/lib/settings";
-import { getDb } from "@/app/lib/db";
+import { getDb, migrateDb } from "@/app/lib/db";
 import { Knex } from "knex";
 import { WhisperFile } from "@/app/lib/whisper";
+import { SQLiteDatabase } from "expo-sqlite";
 
 const RENDER_TIME = 1000;
 
@@ -77,11 +78,12 @@ jest.mock("@/app/i18n/api", () => {
 
 
 describe("SettingsComponent", () => {
-  let db: Knex;
+  let db: SQLiteDatabase;
   let settings: Settings;
 
   beforeEach(async () => {
     db = await getDb("development");
+    await migrateDb("development");
     settings = new Settings(db);
     jest.spyOn(Settings, 'getDefault').mockResolvedValue(settings);
     await settings.setHostLanguage("en");
@@ -90,8 +92,7 @@ describe("SettingsComponent", () => {
 
   afterEach(async () => {
     jest.restoreAllMocks();
-    await db.migrate.down();
+    await migrateDb("development", "down");
-    await db.destroy();
   });
 
   beforeAll(async () => {

jestSetup.ts

@@ -9,43 +9,37 @@ jest.mock("expo-sqlite", () => {
 
   const { MIGRATE_UP } = jest.requireActual("./app/lib/migrations");
 
-  const openDatabaseAsync = async (name: string) => {
+  const genericRun = (sql: string, ... params : string []) => {
-    return {
-      closeAsync: jest.fn(() => db.close()),
-      executeSql: jest.fn((sql: string) => db.exec(sql)),
-      runAsync: jest.fn(async (sql: string, params = []) => {
-        for (let m of Object.values(MIGRATE_UP)) {
-          for (let stmt of m) {
-            const s = db.prepare(stmt);
-            s.run();
-          }
-        }
-        const stmt = db.prepare(sql);
     // console.log("Running %s with %s", sql, params);
     try {
-          stmt.run(params);
+      const stmt = db.prepare(sql);
+      stmt.run(...params);
     } catch (e) {
       throw new Error(
         `running ${sql} with params ${JSON.stringify(params)}: ${e}`
       );
     }
-      }),
-      getFirstAsync: jest.fn(async (sql: string, params = []) => {
-        for (let m of Object.values(MIGRATE_UP)) {
-          for (let stmt of m) {
-            const s = db.prepare(stmt);
-            s.run();
-          }
   }
+
+  const genericGetFirst = (sql: string, params = []) => {
     const stmt = db.prepare(sql);
     // const result = stmt.run(...params);
     return stmt.get(params);
-      }),
+  };
+
+  const openDatabaseAsync = async (name: string) => {
+    return {
+      closeAsync: jest.fn(() => db.close()),
+      executeSql: jest.fn((sql: string) => db.exec(sql)),
+      runAsync: jest.fn(genericRun),
+      runSync: jest.fn(genericRun),
+      getFirstAsync: jest.fn(genericGetFirst),
+      getFirstSync: jest.fn(genericGetFirst),
     };
   };
   return {
     migrateDb: async (direction: "up" | "down" = "up") => {
-      const db = await openDatabaseAsync("translation_terrace");
+      const db = await openDatabaseAsync("translation_terrace_development");
       for (let m of Object.values(MIGRATE_UP)) {
         for (let stmt of m) {
           await db.executeSql(stmt);
@@ -120,3 +114,17 @@ jest.mock('@/app/lib/settings', () => {
       default: MockSettings
   };
 });
+
+jest.mock('expo-file-system', () => ({
+    // ... other methods ...
+    createDownloadResumable: jest.fn(() => ({
+      downloadAsync: jest.fn(() => Promise.resolve({ uri: 'mocked-uri' })),
+      pauseAsync: jest.fn(() => Promise.resolve()),
+      resumeAsync: jest.fn(() => Promise.resolve()),
+      cancelAsync: jest.fn(() => Promise.resolve()),
+    })),
+    getInfoAsync: jest.fn(() => ({
+      exists: () => false,
+    }))
+    // ... other methods ...
+}));

package-lock.json

@@ -17,6 +17,7 @@
         "@react-navigation/bottom-tabs": "^7.2.0",
         "@react-navigation/native-stack": "^7.2.0",
         "expo": "~52.0.28",
+        "expo-audio": "~0.3.4",
         "expo-background-fetch": "~13.0.5",
         "expo-blur": "~14.0.3",
         "expo-constants": "~17.0.6",
@@ -49,6 +50,7 @@
         "react-native-sqlite-storage": "^6.0.1",
         "react-native-web": "~0.19.13",
         "react-native-webview": "13.12.5",
+        "readable-stream": "^4.7.0",
         "sqlite": "^5.1.1",
         "sqlite3": "^5.1.7",
         "whisper.rn": "^0.3.9"
@@ -65,6 +67,7 @@
         "@types/react-native-sqlite-storage": "^6.0.5",
         "@types/react-navigation": "^3.0.8",
         "@types/react-test-renderer": "^18.3.1",
+        "@types/readable-stream": "^4.0.18",
         "babel-jest": "^29.7.0",
         "babel-plugin-module-resolver": "^5.0.2",
         "expo": "~52.0.28",
@@ -5046,6 +5049,24 @@
         "@types/react": "^18"
       }
     },
+    "node_modules/@types/readable-stream": {
+      "version": "4.0.18",
+      "resolved": "https://registry.npmjs.org/@types/readable-stream/-/readable-stream-4.0.18.tgz",
+      "integrity": "sha512-21jK/1j+Wg+7jVw1xnSwy/2Q1VgVjWuFssbYGTREPUBeZ+rqVFl2udq0IkxzPC0ZhOzVceUbyIACFZKLqKEBlA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*",
+        "safe-buffer": "~5.1.1"
+      }
+    },
+    "node_modules/@types/readable-stream/node_modules/safe-buffer": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/stack-utils": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/@types/stack-utils/-/stack-utils-2.0.3.tgz",
@@ -5589,6 +5610,21 @@
         "node": "^12.13.0 || ^14.15.0 || >=16.0.0"
       }
     },
+    "node_modules/are-we-there-yet/node_modules/readable-stream": {
+      "version": "3.6.2",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
+      "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "inherits": "^2.0.3",
+        "string_decoder": "^1.1.1",
+        "util-deprecate": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/arg": {
       "version": "5.0.2",
       "resolved": "https://registry.npmjs.org/arg/-/arg-5.0.2.tgz",
@@ -6030,6 +6066,20 @@
         "readable-stream": "^3.4.0"
       }
     },
+    "node_modules/bl/node_modules/readable-stream": {
+      "version": "3.6.2",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
+      "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
+      "license": "MIT",
+      "dependencies": {
+        "inherits": "^2.0.3",
+        "string_decoder": "^1.1.1",
+        "util-deprecate": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/bn.js": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.1.tgz",
@@ -8162,6 +8212,17 @@
         "react-native": "*"
       }
     },
+    "node_modules/expo-audio": {
+      "version": "0.3.5",
+      "resolved": "https://registry.npmjs.org/expo-audio/-/expo-audio-0.3.5.tgz",
+      "integrity": "sha512-gzpDH3vZI1FDL1Q8pXryACtNIW+idZ/zIZ8WqdTRzJuzxucazrG2gLXUS2ngcXQBn09Jyz4RUnU10Tu2N7/Hgg==",
+      "license": "MIT",
+      "peerDependencies": {
+        "expo": "*",
+        "react": "*",
+        "react-native": "*"
+      }
+    },
     "node_modules/expo-background-fetch": {
       "version": "13.0.5",
       "resolved": "https://registry.npmjs.org/expo-background-fetch/-/expo-background-fetch-13.0.5.tgz",
@@ -15204,17 +15265,43 @@
       }
     },
     "node_modules/readable-stream": {
-      "version": "3.6.2",
+      "version": "4.7.0",
-      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-4.7.0.tgz",
-      "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
+      "integrity": "sha512-oIGGmcpTLwPga8Bn6/Z75SVaH1z5dUut2ibSyAMVhmUggWpmDn2dapB0n7f8nwaSiRtepAsfJyfXIO5DCVAODg==",
       "license": "MIT",
       "dependencies": {
-        "inherits": "^2.0.3",
+        "abort-controller": "^3.0.0",
-        "string_decoder": "^1.1.1",
+        "buffer": "^6.0.3",
-        "util-deprecate": "^1.0.1"
+        "events": "^3.3.0",
+        "process": "^0.11.10",
+        "string_decoder": "^1.3.0"
       },
       "engines": {
-        "node": ">= 6"
+        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+      }
+    },
+    "node_modules/readable-stream/node_modules/buffer": {
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-6.0.3.tgz",
+      "integrity": "sha512-FTiCpNxtwiZZHEZbcbTIcZjERVICn9yq/pDFkTl95/AxzD1naBctN7YO68riM/gLSDY7sdrMby8hofADYuuqOA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "base64-js": "^1.3.1",
+        "ieee754": "^1.2.1"
       }
     },
     "node_modules/readline": {
@@ -16439,6 +16526,20 @@
         "readable-stream": "^3.5.0"
       }
     },
+    "node_modules/stream-browserify/node_modules/readable-stream": {
+      "version": "3.6.2",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
+      "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
+      "license": "MIT",
+      "dependencies": {
+        "inherits": "^2.0.3",
+        "string_decoder": "^1.1.1",
+        "util-deprecate": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/stream-buffers": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/stream-buffers/-/stream-buffers-2.2.0.tgz",
@@ -16837,6 +16938,20 @@
         "node": ">=6"
       }
     },
+    "node_modules/tar-stream/node_modules/readable-stream": {
+      "version": "3.6.2",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
+      "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
+      "license": "MIT",
+      "dependencies": {
+        "inherits": "^2.0.3",
+        "string_decoder": "^1.1.1",
+        "util-deprecate": "^1.0.1"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/tar/node_modules/fs-minipass": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-2.1.0.tgz",

package.json

@@ -9,7 +9,8 @@
     "updateSnapshots": "jest -u --coverage=false",
     "start": "expo start",
     "reset-project": "node ./scripts/reset-project.js",
-    "android": "expo prebuild --npm -p android",
+    "prebuild:android": "expo prebuild --npm -p android",
+    "android": "expo run:android",
     "ios": "expo prebuild --npm -p android --offline",
     "web": "expo start --offline --web",
     "lint": "expo lint"
@@ -24,6 +25,7 @@
     "@react-navigation/bottom-tabs": "^7.2.0",
     "@react-navigation/native-stack": "^7.2.0",
     "expo": "~52.0.28",
+    "expo-audio": "~0.3.4",
     "expo-background-fetch": "~13.0.5",
     "expo-blur": "~14.0.3",
     "expo-constants": "~17.0.6",
@@ -56,6 +58,7 @@
     "react-native-sqlite-storage": "^6.0.1",
     "react-native-web": "~0.19.13",
     "react-native-webview": "13.12.5",
+    "readable-stream": "^4.7.0",
     "sqlite": "^5.1.1",
     "sqlite3": "^5.1.7",
     "whisper.rn": "^0.3.9"
@@ -85,6 +88,7 @@
     "@types/react-native-sqlite-storage": "^6.0.5",
     "@types/react-navigation": "^3.0.8",
     "@types/react-test-renderer": "^18.3.1",
+    "@types/readable-stream": "^4.0.18",
     "babel-jest": "^29.7.0",
     "babel-plugin-module-resolver": "^5.0.2",
     "expo": "~52.0.28",