session-desktop/app/sql.js

const path = require('path');
const mkdirp = require('mkdirp');
const rimraf = require('rimraf');
const SQL = require('better-sqlite3');
const { app, dialog, clipboard } = require('electron');
const { redactAll } = require('../js/modules/privacy');
const { remove: removeUserConfig } = require('./user_config');

const { map, isString, fromPairs, forEach, last, isEmpty, isObject, isNumber } = require('lodash');

/* eslint-disable camelcase */

module.exports = {
  initialize,
  close,
  removeDB,
  setSQLPassword,

  getPasswordHash,
  savePasswordHash,
  removePasswordHash,

  getIdentityKeyById,

  createOrUpdateItem,
  getItemById,
  getAllItems,
  removeItemById,

  getSwarmNodesForPubkey,
  updateSwarmNodesForPubkey,
  getGuardNodes,
  updateGuardNodes,

  getConversationCount,
  saveConversation,
  getConversationById,
  updateConversation,
  removeConversation,
  getAllConversations,
  getAllOpenGroupV1Conversations,
  getAllOpenGroupV2Conversations,
  getPubkeysInPublicConversation,
  getAllGroupsInvolvingId,
  removeAllConversations,

  searchConversations,
  searchMessages,
  searchMessagesInConversation,

  getMessageCount,
  saveMessage,
  cleanSeenMessages,
  cleanLastHashes,
  saveSeenMessageHashes,
  saveSeenMessageHash,
  updateLastHash,
  saveMessages,
  removeMessage,
  getUnreadByConversation,
  getUnreadCountByConversation,
  getMessageBySender,
  getMessageBySenderAndServerTimestamp,
  getMessageBySenderAndTimestamp,
  getMessageIdsFromServerIds,
  getMessageById,
  getMessagesBySentAt,
  getSeenMessagesByHashList,
  getLastHashBySnode,
  getExpiredMessages,
  getOutgoingWithoutExpiresAt,
  getNextExpiringMessage,
  getMessagesByConversation,
  getFirstUnreadMessageIdInConversation,

  getUnprocessedCount,
  getAllUnprocessed,
  saveUnprocessed,
  updateUnprocessedAttempts,
  updateUnprocessedWithData,
  getUnprocessedById,
  removeUnprocessed,
  removeAllUnprocessed,

  getNextAttachmentDownloadJobs,
  saveAttachmentDownloadJob,
  setAttachmentDownloadJobPending,
  resetAttachmentDownloadPending,
  removeAttachmentDownloadJob,
  removeAllAttachmentDownloadJobs,

  removeAll,

  getMessagesWithVisualMediaAttachments,
  getMessagesWithFileAttachments,

  removeKnownAttachments,

  getAllEncryptionKeyPairsForGroup,
  getLatestClosedGroupEncryptionKeyPair,
  addClosedGroupEncryptionKeyPair,
  removeAllClosedGroupEncryptionKeyPairs,

  // open group v2
  getV2OpenGroupRoom,
  saveV2OpenGroupRoom,
  getAllV2OpenGroupRooms,
  getV2OpenGroupRoomByRoomId,
  removeV2OpenGroupRoom,
  removeOneOpenGroupV1Message,
};

const CONVERSATIONS_TABLE = 'conversations';
const MESSAGES_TABLE = 'messages';
const MESSAGES_FTS_TABLE = 'messages_fts';
const NODES_FOR_PUBKEY_TABLE = 'nodesForPubkey';
const OPEN_GROUP_ROOMS_V2_TABLE = 'openGroupRoomsV2';
const IDENTITY_KEYS_TABLE = 'identityKeys';
const GUARD_NODE_TABLE = 'guardNodes';
const ITEMS_TABLE = 'items';
const ATTACHMENT_DOWNLOADS_TABLE = 'attachment_downloads';
const CLOSED_GROUP_V2_KEY_PAIRS_TABLE = 'encryptionKeyPairsForClosedGroupV2';

const MAX_PUBKEYS_MEMBERS = 300;

function objectToJSON(data) {
  return JSON.stringify(data);
}
function jsonToObject(json) {
  return JSON.parse(json);
}

function getSQLiteVersion(db) {
  const { sqlite_version } = db.prepare('select sqlite_version() as sqlite_version').get();
  return sqlite_version;
}

function getSchemaVersion(db) {
  return db.pragma('schema_version', { simple: true });
}

function getSQLCipherVersion(db) {
  return db.pragma('cipher_version', { simple: true });
}

function getSQLCipherIntegrityCheck(db) {
  const rows = db.pragma('cipher_integrity_check');
  if (rows.length === 0) {
    return undefined;
  }
  return rows.map(row => row.cipher_integrity_check);
}

function keyDatabase(db, key) {
  // https://www.zetetic.net/sqlcipher/sqlcipher-api/#key
  // If the password isn't hex then we need to derive a key from it

  const deriveKey = HEX_KEY.test(key);

  const value = deriveKey ? `'${key}'` : `"x'${key}'"`;

  const pragramToRun = `key = ${value}`;

  db.pragma(pragramToRun);
}

function switchToWAL(db) {
  // https://sqlite.org/wal.html
  db.pragma('journal_mode = WAL');
  db.pragma('synchronous = FULL');
}

function getSQLIntegrityCheck(db) {
  const checkResult = db.pragma('quick_check', { simple: true });
  if (checkResult !== 'ok') {
    return checkResult;
  }

  return undefined;
}

const HEX_KEY = /[^0-9A-Fa-f]/;

function migrateSchemaVersion(db) {
  const userVersion = getUserVersion(db);
  if (userVersion > 0) {
    return;
  }
  const schemaVersion = getSchemaVersion(db);

  const newUserVersion = schemaVersion > 18 ? 16 : schemaVersion;
  console.log(
    'migrateSchemaVersion: Migrating from schema_version ' +
      `${schemaVersion} to user_version ${newUserVersion}`
  );

  setUserVersion(db, newUserVersion);
}

function getUserVersion(db) {
  try {
    return db.pragma('user_version', { simple: true });
  } catch (e) {
    console.warn('getUserVersion error', e);
    return 0;
  }
}

function setUserVersion(db, version) {
  if (!isNumber(version)) {
    throw new Error(`setUserVersion: version ${version} is not a number`);
  }

  db.pragma(`user_version = ${version}`);
}

function openAndMigrateDatabase(filePath, key) {
  let db;

  // First, we try to open the database without any cipher changes
  try {
    db = new SQL(filePath, { verbose: null });

    keyDatabase(db, key);
    switchToWAL(db);
    migrateSchemaVersion(db);
    db.pragma('secure_delete = ON');

    return db;
  } catch (error) {
    if (db) {
      db.close();
    }
    console.log('migrateDatabase: Migration without cipher change failed', error);
  }

  // If that fails, we try to open the database with 3.x compatibility to extract the
  //   user_version (previously stored in schema_version, blown away by cipher_migrate).

  let db1;
  try {
    db1 = new SQL(filePath, { verbose: null });
    keyDatabase(db1, key);

    // https://www.zetetic.net/blog/2018/11/30/sqlcipher-400-release/#compatability-sqlcipher-4-0-0
    db1.pragma('cipher_compatibility = 3');
    migrateSchemaVersion(db1);
    db1.close();
  } catch (error) {
    if (db1) {
      db1.close();
    }
    console.log('migrateDatabase: migrateSchemaVersion failed', error);
    return null;
  }
  // After migrating user_version -> schema_version, we reopen database, because we can't
  //   migrate to the latest ciphers after we've modified the defaults.
  let db2;
  try {
    db2 = new SQL(filePath, { verbose: null });
    keyDatabase(db2, key);

    db2.pragma('cipher_migrate');
    switchToWAL(db2);

    // Because foreign key support is not enabled by default!
    db2.pragma('foreign_keys = OFF');

    return db2;
  } catch (error) {
    if (db2) {
      db2.close();
    }
    console.log('migrateDatabase: switchToWAL failed');
    return null;
  }
}

function openAndSetUpSQLCipher(filePath, { key }) {
  return openAndMigrateDatabase(filePath, key);
}

function setSQLPassword(password) {
  if (!globalInstance) {
    throw new Error('setSQLPassword: db is not initialized');
  }

  // If the password isn't hex then we need to derive a key from it
  const deriveKey = HEX_KEY.test(password);
  const value = deriveKey ? `'${password}'` : `"x'${password}'"`;
  globalInstance.pragma(`rekey = ${value}`);
}

function vacuumDatabase(db) {
  if (!db) {
    throw new Error('vacuum: db is not initialized');
  }
  console.time('vaccumming db');
  console.warn('Vacuuming DB. This might take a while.');
  db.exec('VACUUM;');
  console.warn('Vacuuming DB Finished');
  console.timeEnd('vaccumming db');
}

function updateToSchemaVersion1(currentVersion, db) {
  if (currentVersion >= 1) {
    return;
  }

  console.log('updateToSchemaVersion1: starting...');

  db.transaction(() => {
    db.exec(
      `CREATE TABLE ${MESSAGES_TABLE}(
      id STRING PRIMARY KEY ASC,
      json TEXT,

      unread INTEGER,
      expires_at INTEGER,
      sent BOOLEAN,
      sent_at INTEGER,
      schemaVersion INTEGER,
      conversationId STRING,
      received_at INTEGER,
      source STRING,
      sourceDevice STRING,
      hasAttachments INTEGER,
      hasFileAttachments INTEGER,
      hasVisualMediaAttachments INTEGER
    );

    CREATE INDEX messages_unread ON ${MESSAGES_TABLE} (
      unread
    );

    CREATE INDEX messages_expires_at ON ${MESSAGES_TABLE} (
      expires_at
    );

    CREATE INDEX messages_receipt ON ${MESSAGES_TABLE} (
      sent_at
    );

    CREATE INDEX messages_schemaVersion ON ${MESSAGES_TABLE} (
      schemaVersion
    );

    CREATE INDEX messages_conversation ON ${MESSAGES_TABLE} (
      conversationId,
      received_at
    );

    CREATE INDEX messages_duplicate_check ON ${MESSAGES_TABLE} (
      source,
      sourceDevice,
      sent_at
    );

    CREATE INDEX messages_hasAttachments ON ${MESSAGES_TABLE} (
      conversationId,
      hasAttachments,
      received_at
    );

    CREATE INDEX messages_hasFileAttachments ON ${MESSAGES_TABLE} (
      conversationId,
      hasFileAttachments,
      received_at
    );

    CREATE INDEX messages_hasVisualMediaAttachments ON ${MESSAGES_TABLE} (
      conversationId,
      hasVisualMediaAttachments,
      received_at
    );

    CREATE TABLE unprocessed(
      id STRING,
      timestamp INTEGER,
      json TEXT
    );

    CREATE INDEX unprocessed_id ON unprocessed (
      id
    );

    CREATE INDEX unprocessed_timestamp ON unprocessed (
      timestamp
    );


    `
    );
    db.pragma('user_version = 1');
  })();

  console.log('updateToSchemaVersion1: success!');
}

function updateToSchemaVersion2(currentVersion, db) {
  if (currentVersion >= 2) {
    return;
  }

  console.log('updateToSchemaVersion2: starting...');

  db.transaction(() => {
    db.exec(`ALTER TABLE ${MESSAGES_TABLE}
     ADD COLUMN expireTimer INTEGER;

     ALTER TABLE ${MESSAGES_TABLE}
     ADD COLUMN expirationStartTimestamp INTEGER;

     ALTER TABLE ${MESSAGES_TABLE}
     ADD COLUMN type STRING;

     CREATE INDEX messages_expiring ON ${MESSAGES_TABLE} (
      expireTimer,
      expirationStartTimestamp,
      expires_at
    );

    UPDATE ${MESSAGES_TABLE} SET
      expirationStartTimestamp = json_extract(json, '$.expirationStartTimestamp'),
      expireTimer = json_extract(json, '$.expireTimer'),
      type = json_extract(json, '$.type');


     `);
    db.pragma('user_version = 2');
  })();

  console.log('updateToSchemaVersion2: success!');
}

function updateToSchemaVersion3(currentVersion, db) {
  if (currentVersion >= 3) {
    return;
  }

  console.log('updateToSchemaVersion3: starting...');

  db.transaction(() => {
    db.exec(`
    DROP INDEX messages_expiring;
    DROP INDEX messages_unread;

    CREATE INDEX messages_without_timer ON ${MESSAGES_TABLE} (
      expireTimer,
      expires_at,
      type
    ) WHERE expires_at IS NULL AND expireTimer IS NOT NULL;

    CREATE INDEX messages_unread ON ${MESSAGES_TABLE} (
      conversationId,
      unread
    ) WHERE unread IS NOT NULL;

    ANALYZE;

    `);
    db.pragma('user_version = 3');
  })();

  console.log('updateToSchemaVersion3: success!');
}

function updateToSchemaVersion4(currentVersion, db) {
  if (currentVersion >= 4) {
    return;
  }

  console.log('updateToSchemaVersion4: starting...');

  db.transaction(() => {
    db.exec(`

    CREATE TABLE ${CONVERSATIONS_TABLE}(
      id STRING PRIMARY KEY ASC,
      json TEXT,

      active_at INTEGER,
      type STRING,
      members TEXT,
      name TEXT,
      profileName TEXT
    );

    CREATE INDEX conversations_active ON ${CONVERSATIONS_TABLE} (
      active_at
    ) WHERE active_at IS NOT NULL;
    CREATE INDEX conversations_type ON ${CONVERSATIONS_TABLE} (
      type
    ) WHERE type IS NOT NULL;

    `);

    db.pragma('user_version = 4');
  })();

  console.log('updateToSchemaVersion4: success!');
}

function updateToSchemaVersion6(currentVersion, db) {
  if (currentVersion >= 6) {
    return;
  }
  console.log('updateToSchemaVersion6: starting...');
  db.transaction(() => {
    db.exec(`
    CREATE TABLE lastHashes(
      snode TEXT PRIMARY KEY,
      hash TEXT,
      expiresAt INTEGER
    );

    CREATE TABLE seenMessages(
      hash TEXT PRIMARY KEY,
      expiresAt INTEGER
    );


    CREATE TABLE sessions(
      id STRING PRIMARY KEY ASC,
      number STRING,
      json TEXT
    );

    CREATE INDEX sessions_number ON sessions (
      number
    ) WHERE number IS NOT NULL;

    CREATE TABLE groups(
      id STRING PRIMARY KEY ASC,
      json TEXT
    );


    CREATE TABLE ${IDENTITY_KEYS_TABLE}(
      id STRING PRIMARY KEY ASC,
      json TEXT
    );

    CREATE TABLE ${ITEMS_TABLE}(
      id STRING PRIMARY KEY ASC,
      json TEXT
    );


    CREATE TABLE preKeys(
      id INTEGER PRIMARY KEY ASC,
      recipient STRING,
      json TEXT
    );


    CREATE TABLE signedPreKeys(
      id INTEGER PRIMARY KEY ASC,
      json TEXT
    );

    CREATE TABLE contactPreKeys(
      id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
      identityKeyString VARCHAR(255),
      keyId INTEGER,
      json TEXT
    );

    CREATE UNIQUE INDEX contact_prekey_identity_key_string_keyid ON contactPreKeys (
      identityKeyString,
      keyId
    );

    CREATE TABLE contactSignedPreKeys(
      id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
      identityKeyString VARCHAR(255),
      keyId INTEGER,
      json TEXT
    );

    CREATE UNIQUE INDEX contact_signed_prekey_identity_key_string_keyid ON contactSignedPreKeys (
      identityKeyString,
      keyId
    );

    `);
    db.pragma('user_version = 6');
  })();

  console.log('updateToSchemaVersion6: success!');
}

function updateToSchemaVersion7(currentVersion, db) {
  if (currentVersion >= 7) {
    return;
  }
  console.log('updateToSchemaVersion7: starting...');

  db.transaction(() => {
    db.exec(`
      -- SQLite has been coercing our STRINGs into numbers, so we force it with TEXT
      -- We create a new table then copy the data into it, since we can't modify columns
      DROP INDEX sessions_number;
      ALTER TABLE sessions RENAME TO sessions_old;

      CREATE TABLE sessions(
        id TEXT PRIMARY KEY,
        number TEXT,
        json TEXT
      );
      CREATE INDEX sessions_number ON sessions (
        number
      ) WHERE number IS NOT NULL;
      INSERT INTO sessions(id, number, json)
    SELECT "+" || id, number, json FROM sessions_old;
      DROP TABLE sessions_old;
    `);

    db.pragma('user_version = 7');
  })();

  console.log('updateToSchemaVersion7: success!');
}

function updateToSchemaVersion8(currentVersion, db) {
  if (currentVersion >= 8) {
    return;
  }
  console.log('updateToSchemaVersion8: starting...');

  db.transaction(() => {
    db.exec(`
    -- First, we pull a new body field out of the message table's json blob
    ALTER TABLE ${MESSAGES_TABLE}
      ADD COLUMN body TEXT;
    UPDATE ${MESSAGES_TABLE} SET body = json_extract(json, '$.body');

    -- Then we create our full-text search table and populate it
    CREATE VIRTUAL TABLE ${MESSAGES_FTS_TABLE}
      USING fts5(id UNINDEXED, body);

    INSERT INTO ${MESSAGES_FTS_TABLE}(id, body)
      SELECT id, body FROM ${MESSAGES_TABLE};

    -- Then we set up triggers to keep the full-text search table up to date
    CREATE TRIGGER messages_on_insert AFTER INSERT ON ${MESSAGES_TABLE} BEGIN
      INSERT INTO ${MESSAGES_FTS_TABLE} (
        id,
        body
      ) VALUES (
        new.id,
        new.body
      );
    END;
    CREATE TRIGGER messages_on_delete AFTER DELETE ON ${MESSAGES_TABLE} BEGIN
      DELETE FROM ${MESSAGES_FTS_TABLE} WHERE id = old.id;
    END;
    CREATE TRIGGER messages_on_update AFTER UPDATE ON ${MESSAGES_TABLE} BEGIN
      DELETE FROM ${MESSAGES_FTS_TABLE} WHERE id = old.id;
      INSERT INTO ${MESSAGES_FTS_TABLE}(
        id,
        body
      ) VALUES (
        new.id,
        new.body
      );
    END;

    `);
    // For formatting search results:
    //   https://sqlite.org/fts5.html#the_highlight_function
    //   https://sqlite.org/fts5.html#the_snippet_function
    db.pragma('user_version = 8');
  })();

  console.log('updateToSchemaVersion8: success!');
}

function updateToSchemaVersion9(currentVersion, db) {
  if (currentVersion >= 9) {
    return;
  }
  console.log('updateToSchemaVersion9: starting...');
  db.transaction(() => {
    db.exec(`
      CREATE TABLE ${ATTACHMENT_DOWNLOADS_TABLE}(
        id STRING primary key,
        timestamp INTEGER,
        pending INTEGER,
        json TEXT
      );

      CREATE INDEX attachment_downloads_timestamp
        ON ${ATTACHMENT_DOWNLOADS_TABLE} (
          timestamp
      ) WHERE pending = 0;
      CREATE INDEX attachment_downloads_pending
        ON ${ATTACHMENT_DOWNLOADS_TABLE} (
          pending
      ) WHERE pending != 0;
    `);

    db.pragma('user_version = 9');
  })();

  console.log('updateToSchemaVersion9: success!');
}

function updateToSchemaVersion10(currentVersion, db) {
  if (currentVersion >= 10) {
    return;
  }
  console.log('updateToSchemaVersion10: starting...');

  db.transaction(() => {
    db.exec(`
      DROP INDEX unprocessed_id;
      DROP INDEX unprocessed_timestamp;
      ALTER TABLE unprocessed RENAME TO unprocessed_old;

      CREATE TABLE unprocessed(
        id STRING,
        timestamp INTEGER,
        version INTEGER,
        attempts INTEGER,
        envelope TEXT,
        decrypted TEXT,
        source TEXT,
        sourceDevice TEXT,
        serverTimestamp INTEGER
      );

      CREATE INDEX unprocessed_id ON unprocessed (
        id
      );
      CREATE INDEX unprocessed_timestamp ON unprocessed (
        timestamp
      );

      INSERT INTO unprocessed (
        id,
        timestamp,
        version,
        attempts,
        envelope,
        decrypted,
        source,
        sourceDevice,
        serverTimestamp
      ) SELECT
        id,
        timestamp,
        json_extract(json, '$.version'),
        json_extract(json, '$.attempts'),
        json_extract(json, '$.envelope'),
        json_extract(json, '$.decrypted'),
        json_extract(json, '$.source'),
        json_extract(json, '$.sourceDevice'),
        json_extract(json, '$.serverTimestamp')
      FROM unprocessed_old;

      DROP TABLE unprocessed_old;
    `);

    db.pragma('user_version = 10');
  })();
  console.log('updateToSchemaVersion10: success!');
}

function updateToSchemaVersion11(currentVersion, db) {
  if (currentVersion >= 11) {
    return;
  }
  console.log('updateToSchemaVersion11: starting...');
  db.transaction(() => {
    db.exec(`
      DROP TABLE groups;
    `);

    db.pragma('user_version = 11');
  })();
  console.log('updateToSchemaVersion11: success!');
}

const SCHEMA_VERSIONS = [
  updateToSchemaVersion1,
  updateToSchemaVersion2,
  updateToSchemaVersion3,
  updateToSchemaVersion4,
  () => null, // version 5 was dropped
  updateToSchemaVersion6,
  updateToSchemaVersion7,
  updateToSchemaVersion8,
  updateToSchemaVersion9,
  updateToSchemaVersion10,
  updateToSchemaVersion11,
];

function updateSchema(db) {
  const sqliteVersion = getSQLiteVersion(db);
  const sqlcipherVersion = getSQLCipherVersion(db);
  const userVersion = getUserVersion(db);
  const maxUserVersion = SCHEMA_VERSIONS.length;
  const schemaVersion = getSchemaVersion(db);

  console.log('updateSchema:');
  console.log(` Current user_version: ${userVersion}`);
  console.log(` Most recent db schema: ${maxUserVersion}`);
  console.log(` SQLite version: ${sqliteVersion}`);
  console.log(` SQLCipher version: ${sqlcipherVersion}`);
  console.log(` (deprecated) schema_version: ${schemaVersion}`);

  for (let index = 0, max = SCHEMA_VERSIONS.length; index < max; index += 1) {
    const runSchemaUpdate = SCHEMA_VERSIONS[index];
    runSchemaUpdate(schemaVersion, db);
  }
  updateLokiSchema(db);
}

const LOKI_SCHEMA_VERSIONS = [
  updateToLokiSchemaVersion1,
  updateToLokiSchemaVersion2,
  updateToLokiSchemaVersion3,
  updateToLokiSchemaVersion4,
  updateToLokiSchemaVersion5,
  updateToLokiSchemaVersion6,
  updateToLokiSchemaVersion7,
  updateToLokiSchemaVersion8,
  updateToLokiSchemaVersion9,
  updateToLokiSchemaVersion10,
  updateToLokiSchemaVersion11,
  updateToLokiSchemaVersion12,
  updateToLokiSchemaVersion13,
  updateToLokiSchemaVersion14,
  updateToLokiSchemaVersion15,
  updateToLokiSchemaVersion16,
];

function updateToLokiSchemaVersion1(currentVersion, db) {
  const targetVersion = 1;
  if (currentVersion >= targetVersion) {
    return;
  }
  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);
  db.transaction(() => {
    db.exec(`
    ALTER TABLE ${MESSAGES_TABLE}
    ADD COLUMN serverId INTEGER;

    CREATE TABLE servers(
      serverUrl STRING PRIMARY KEY ASC,
      token TEXT
    );
    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();

  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion2(currentVersion, db) {
  const targetVersion = 2;

  if (currentVersion >= targetVersion) {
    return;
  }
  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
    CREATE TABLE pairingAuthorisations(
      id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
      primaryDevicePubKey VARCHAR(255),
      secondaryDevicePubKey VARCHAR(255),
      isGranted BOOLEAN,
      json TEXT,
      UNIQUE(primaryDevicePubKey, secondaryDevicePubKey)
    );
    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion3(currentVersion, db) {
  const targetVersion = 3;

  if (currentVersion >= targetVersion) {
    return;
  }

  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
    CREATE TABLE ${GUARD_NODE_TABLE}(
      id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
      ed25519PubKey VARCHAR(64)
    );
    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();

  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion4(currentVersion, db) {
  const targetVersion = 4;
  if (currentVersion >= targetVersion) {
    return;
  }

  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
    DROP TABLE lastHashes;
    CREATE TABLE lastHashes(
      id TEXT,
      snode TEXT,
      hash TEXT,
      expiresAt INTEGER,
      PRIMARY KEY (id, snode)
    );
    -- Add senderIdentity field to unprocessed needed for medium size groups
    ALTER TABLE unprocessed ADD senderIdentity TEXT;
    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion5(currentVersion, db) {
  const targetVersion = 5;
  if (currentVersion >= targetVersion) {
    return;
  }

  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
    CREATE TABLE ${NODES_FOR_PUBKEY_TABLE} (
      pubkey TEXT PRIMARY KEY,
      json TEXT
    );

    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion6(currentVersion, db) {
  const targetVersion = 6;
  if (currentVersion >= targetVersion) {
    return;
  }

  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
    -- Remove RSS Feed conversations
    DELETE FROM ${CONVERSATIONS_TABLE} WHERE
    type = 'group' AND
    id LIKE 'rss://%';

    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion7(currentVersion, db) {
  const targetVersion = 7;
  if (currentVersion >= targetVersion) {
    return;
  }

  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
    -- Remove multi device data

    DELETE FROM pairingAuthorisations;
    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion8(currentVersion, db) {
  const targetVersion = 8;
  if (currentVersion >= targetVersion) {
    return;
  }
  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`

    ALTER TABLE ${MESSAGES_TABLE}
    ADD COLUMN serverTimestamp INTEGER;
    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion9(currentVersion, db) {
  const targetVersion = 9;
  if (currentVersion >= targetVersion) {
    return;
  }

  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);
  db.transaction(() => {
    const rows = db
      .prepare(
        `SELECT json FROM ${CONVERSATIONS_TABLE} WHERE
      type = 'group' AND
      id LIKE '__textsecure_group__!%';
    `
      )
      .all();

    const objs = map(rows, row => jsonToObject(row.json));

    const conversationIdRows = db
      .prepare(`SELECT id FROM ${CONVERSATIONS_TABLE} ORDER BY id ASC;`)
      .all();

    const allOldConversationIds = map(conversationIdRows, row => row.id);
    objs.forEach(o => {
      const oldId = o.id;
      const newId = oldId.replace('__textsecure_group__!', '');
      console.log(`migrating conversation, ${oldId} to ${newId}`);

      if (allOldConversationIds.includes(newId)) {
        console.log(
          'Found a duplicate conversation after prefix removing. We need to take care of it'
        );
        // We have another conversation with the same future name.
        // We decided to keep only the conversation with the higher number of messages
        const countMessagesOld = getMessagesCountByConversation(db, oldId, {
          limit: Number.MAX_VALUE,
        });
        const countMessagesNew = getMessagesCountByConversation(db, newId, {
          limit: Number.MAX_VALUE,
        });

        console.log(`countMessagesOld: ${countMessagesOld}, countMessagesNew: ${countMessagesNew}`);

        const deleteId = countMessagesOld > countMessagesNew ? newId : oldId;
        db.prepare(`DELETE FROM ${CONVERSATIONS_TABLE} WHERE id = $deleteId;`).run({ deleteId });
      }

      const morphedObject = {
        ...o,
        id: newId,
      };

      db.prepare(
        `UPDATE ${CONVERSATIONS_TABLE} SET
        id = $newId,
        json = $json
        WHERE id = $oldId;`
      ).run({
        newId,
        json: objectToJSON(morphedObject),
        oldId,
      });
    });

    writeLokiSchemaVersion(targetVersion, db);
  })();

  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion10(currentVersion, db) {
  const targetVersion = 10;
  if (currentVersion >= targetVersion) {
    return;
  }
  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
    CREATE TABLE ${CLOSED_GROUP_V2_KEY_PAIRS_TABLE} (
      id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
      groupPublicKey TEXT,
      timestamp NUMBER,
      json TEXT
    );

    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion11(currentVersion, db) {
  const targetVersion = 11;
  if (currentVersion >= targetVersion) {
    return;
  }
  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    updateExistingClosedGroupV1ToClosedGroupV2(db);
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion12(currentVersion, db) {
  const targetVersion = 12;
  if (currentVersion >= targetVersion) {
    return;
  }
  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
    CREATE TABLE ${OPEN_GROUP_ROOMS_V2_TABLE} (
      serverUrl TEXT NOT NULL,
      roomId TEXT NOT NULL,
      conversationId TEXT,
      json TEXT,
      PRIMARY KEY (serverUrl, roomId)
    );

    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion13(currentVersion, db) {
  const targetVersion = 13;
  if (currentVersion >= targetVersion) {
    return;
  }
  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  // Clear any already deleted db entries.
  // secure_delete = ON will make sure next deleted entries are overwritten with 0 right away
  db.transaction(() => {
    db.pragma('secure_delete = ON');
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion14(currentVersion, db) {
  const targetVersion = 14;
  if (currentVersion >= targetVersion) {
    return;
  }
  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
    DROP TABLE IF EXISTS servers;
    DROP TABLE IF EXISTS sessions;
    DROP TABLE IF EXISTS preKeys;
    DROP TABLE IF EXISTS contactPreKeys;
    DROP TABLE IF EXISTS contactSignedPreKeys;
    DROP TABLE IF EXISTS signedPreKeys;
    DROP TABLE IF EXISTS senderKeys;
    `);
    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion15(currentVersion, db) {
  const targetVersion = 15;
  if (currentVersion >= targetVersion) {
    return;
  }
  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
      DROP TABLE pairingAuthorisations;
      DROP TRIGGER messages_on_delete;
      DROP TRIGGER messages_on_update;
    `);

    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function updateToLokiSchemaVersion16(currentVersion, db) {
  const targetVersion = 16;
  if (currentVersion >= targetVersion) {
    return;
  }
  console.log(`updateToLokiSchemaVersion${targetVersion}: starting...`);

  db.transaction(() => {
    db.exec(`
      ALTER TABLE ${MESSAGES_TABLE} ADD COLUMN serverHash TEXT;
      ALTER TABLE ${MESSAGES_TABLE} ADD COLUMN isDeleted BOOLEAN;

      CREATE INDEX messages_serverHash ON ${MESSAGES_TABLE} (
        serverHash
      ) WHERE serverHash IS NOT NULL;

      CREATE INDEX messages_isDeleted ON ${MESSAGES_TABLE} (
        isDeleted
      ) WHERE isDeleted IS NOT NULL;

      ALTER TABLE unprocessed ADD serverHash TEXT;
      CREATE INDEX messages_messageHash ON unprocessed (
        serverHash
      ) WHERE serverHash IS NOT NULL;
    `);

    writeLokiSchemaVersion(targetVersion, db);
  })();
  console.log(`updateToLokiSchemaVersion${targetVersion}: success!`);
}

function writeLokiSchemaVersion(newVersion, db) {
  db.prepare(
    `INSERT INTO loki_schema(
      version
    ) values (
      $newVersion
    )`
  ).run({ newVersion });
}

function updateLokiSchema(db) {
  const result = db
    .prepare(`SELECT name FROM sqlite_master WHERE type = 'table' AND name='loki_schema';`)
    .get();

  if (!result) {
    createLokiSchemaTable(db);
  }
  const lokiSchemaVersion = getLokiSchemaVersion(db);
  console.log(
    'updateLokiSchema:',
    `Current loki schema version: ${lokiSchemaVersion};`,
    `Most recent schema version: ${LOKI_SCHEMA_VERSIONS.length};`
  );
  for (let index = 0, max = LOKI_SCHEMA_VERSIONS.length; index < max; index += 1) {
    const runSchemaUpdate = LOKI_SCHEMA_VERSIONS[index];
    runSchemaUpdate(lokiSchemaVersion, db);
  }
}

function getLokiSchemaVersion(db) {
  const result = db
    .prepare(
      `
    SELECT MAX(version) as version FROM loki_schema;
    `
    )
    .get();
  if (!result || !result.version) {
    return 0;
  }
  return result.version;
}

function createLokiSchemaTable(db) {
  db.transaction(() => {
    db.exec(`
    CREATE TABLE loki_schema(
      id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
      version INTEGER
    );
    INSERT INTO loki_schema (
      version
    ) values (
      0
    );
    `);
  })();
}
let globalInstance;

let databaseFilePath;

function _initializePaths(configDir) {
  const dbDir = path.join(configDir, 'sql');
  mkdirp.sync(dbDir);

  databaseFilePath = path.join(dbDir, 'db.sqlite');
}

function initialize({ configDir, key, messages, passwordAttempt }) {
  if (globalInstance) {
    throw new Error('Cannot initialize more than once!');
  }

  if (!isString(configDir)) {
    throw new Error('initialize: configDir is required!');
  }
  if (!isString(key)) {
    throw new Error('initialize: key is required!');
  }
  if (!isObject(messages)) {
    throw new Error('initialize: message is required!');
  }

  _initializePaths(configDir);

  let db;
  try {
    db = openAndSetUpSQLCipher(databaseFilePath, { key });
    updateSchema(db);

    // test database

    const cipherIntegrityResult = getSQLCipherIntegrityCheck(db);
    if (cipherIntegrityResult) {
      console.log('Database cipher integrity check failed:', cipherIntegrityResult);
      throw new Error(`Cipher integrity check failed: ${cipherIntegrityResult}`);
    }
    const integrityResult = getSQLIntegrityCheck(db);
    if (integrityResult) {
      console.log('Database integrity check failed:', integrityResult);
      throw new Error(`Integrity check failed: ${integrityResult}`);
    }

    // At this point we can allow general access to the database
    globalInstance = db;

    // Clear any already deleted db entries on each app start.
    vacuumDatabase(db);
    const msgCount = getMessageCount();
    console.warn('total message count: ', msgCount);
  } catch (error) {
    if (passwordAttempt) {
      throw error;
    }
    console.log('Database startup error:', error.stack);
    const buttonIndex = dialog.showMessageBox({
      buttons: [messages.copyErrorAndQuit, messages.clearAllData],
      defaultId: 0,
      detail: redactAll(error.stack),
      message: messages.databaseError,
      noLink: true,
      type: 'error',
    });

    if (buttonIndex === 0) {
      clipboard.writeText(`Database startup error:\n\n${redactAll(error.stack)}`);
    } else {
      close();
      removeDB();
      removeUserConfig();
      app.relaunch();
    }

    app.exit(1);
    return false;
  }

  return true;
}

function close() {
  if (!globalInstance) {
    return;
  }
  const dbRef = globalInstance;
  globalInstance = null;
  // SQLLite documentation suggests that we run `PRAGMA optimize` right before
  // closing the database connection.
  dbRef.pragma('optimize');
  dbRef.close();
}

function removeDB(configDir = null) {
  if (globalInstance) {
    throw new Error('removeDB: Cannot erase database when it is open!');
  }

  if (globalInstance) {
    throw new Error('removeDB: Cannot erase database when it is open!');
  }

  if (!databaseFilePath && configDir) {
    _initializePaths(configDir);
  }

  rimraf.sync(databaseFilePath);
  rimraf.sync(`${databaseFilePath}-shm`);
  rimraf.sync(`${databaseFilePath}-wal`);
}

// Password hash
const PASS_HASH_ID = 'passHash';
function getPasswordHash() {
  const item = getItemById(PASS_HASH_ID);
  return item && item.value;
}
function savePasswordHash(hash) {
  if (isEmpty(hash)) {
    return removePasswordHash();
  }

  const data = { id: PASS_HASH_ID, value: hash };
  return createOrUpdateItem(data);
}
function removePasswordHash() {
  return removeItemById(PASS_HASH_ID);
}

function getIdentityKeyById(id, instance) {
  return getById(IDENTITY_KEYS_TABLE, id, instance);
}

function getGuardNodes() {
  const nodes = globalInstance.prepare(`SELECT ed25519PubKey FROM ${GUARD_NODE_TABLE};`).all();

  if (!nodes) {
    return null;
  }

  return nodes;
}

function updateGuardNodes(nodes) {
  globalInstance.transaction(() => {
    globalInstance.exec(`DELETE FROM ${GUARD_NODE_TABLE}`);
    nodes.map(edkey =>
      globalInstance
        .prepare(
          `INSERT INTO ${GUARD_NODE_TABLE} (
        ed25519PubKey
      ) values ($ed25519PubKey)`
        )
        .run({
          ed25519PubKey: edkey,
        })
    );
  })();
}

function createOrUpdateItem(data, instance) {
  return createOrUpdate(ITEMS_TABLE, data, instance);
}
function getItemById(id) {
  return getById(ITEMS_TABLE, id);
}
function getAllItems() {
  const rows = globalInstance.prepare(`SELECT json FROM ${ITEMS_TABLE} ORDER BY id ASC;`).all();
  return map(rows, row => jsonToObject(row.json));
}
function removeItemById(id) {
  return removeById(ITEMS_TABLE, id);
}

function createOrUpdate(table, data, instance) {
  const { id } = data;
  if (!id) {
    throw new Error('createOrUpdate: Provided data did not have a truthy id');
  }

  (globalInstance || instance)
    .prepare(
      `INSERT OR REPLACE INTO ${table} (
      id,
      json
    ) values (
      $id,
      $json
    )`
    )
    .run({
      id,
      json: objectToJSON(data),
    });
}

function getById(table, id, instance) {
  const row = (globalInstance || instance).prepare(`SELECT * FROM ${table} WHERE id = $id;`).get({
    id,
  });

  if (!row) {
    return null;
  }

  return jsonToObject(row.json);
}

function removeById(table, id) {
  if (!Array.isArray(id)) {
    globalInstance.prepare(`DELETE FROM ${table} WHERE id = $id;`).run({ id });
    return;
  }

  if (!id.length) {
    throw new Error('removeById: No ids to delete!');
  }

  // Our node interface doesn't seem to allow you to replace one single ? with an array
  globalInstance
    .prepare(`DELETE FROM ${table} WHERE id IN ( ${id.map(() => '?').join(', ')} );`)
    .run({ id });
}

// Conversations

function getSwarmNodesForPubkey(pubkey) {
  const row = globalInstance
    .prepare(`SELECT * FROM ${NODES_FOR_PUBKEY_TABLE} WHERE pubkey = $pubkey;`)
    .get({
      pubkey,
    });

  if (!row) {
    return [];
  }

  return jsonToObject(row.json);
}

function updateSwarmNodesForPubkey(pubkey, snodeEdKeys) {
  globalInstance
    .prepare(
      `INSERT OR REPLACE INTO ${NODES_FOR_PUBKEY_TABLE} (
        pubkey,
        json
        ) values (
          $pubkey,
          $json
          );`
    )
    .run({
      pubkey,
      json: objectToJSON(snodeEdKeys),
    });
}

function getConversationCount() {
  const row = globalInstance.prepare(`SELECT count(*) from ${CONVERSATIONS_TABLE};`).get();
  if (!row) {
    throw new Error(`getConversationCount: Unable to get count of ${CONVERSATIONS_TABLE}`);
  }

  return row['count(*)'];
}

function saveConversation(data) {
  const { id, active_at, type, members, name, profileName } = data;

  globalInstance
    .prepare(
      `INSERT INTO ${CONVERSATIONS_TABLE} (
    id,
    json,

    active_at,
    type,
    members,
    name,
    profileName
  ) values (
    $id,
    $json,

    $active_at,
    $type,
    $members,
    $name,
    $profileName
  );`
    )
    .run({
      id,
      json: objectToJSON(data),

      active_at,
      type,
      members: members ? members.join(' ') : null,
      name,
      profileName,
    });
}

function updateConversation(data) {
  const {
    id,
    // eslint-disable-next-line camelcase
    active_at,
    type,
    members,
    name,
    profileName,
  } = data;

  globalInstance
    .prepare(
      `UPDATE ${CONVERSATIONS_TABLE} SET
    json = $json,

    active_at = $active_at,
    type = $type,
    members = $members,
    name = $name,
    profileName = $profileName
    WHERE id = $id;`
    )
    .run({
      id,
      json: objectToJSON(data),

      active_at,
      type,
      members: members ? members.join(' ') : null,
      name,
      profileName,
    });
}

function removeConversation(id) {
  if (!Array.isArray(id)) {
    globalInstance.prepare(`DELETE FROM ${CONVERSATIONS_TABLE} WHERE id = $id;`).run({
      id,
    });
    return;
  }

  if (!id.length) {
    throw new Error('removeConversation: No ids to delete!');
  }

  // Our node interface doesn't seem to allow you to replace one single ? with an array
  globalInstance
    .prepare(`DELETE FROM ${CONVERSATIONS_TABLE} WHERE id IN ( ${id.map(() => '?').join(', ')} );`)
    .run(id);
}

function getConversationById(id) {
  const row = globalInstance.prepare(`SELECT * FROM ${CONVERSATIONS_TABLE} WHERE id = $id;`).get({
    id,
  });

  if (!row) {
    return null;
  }

  return jsonToObject(row.json);
}

function getAllConversations() {
  const rows = globalInstance
    .prepare(`SELECT json FROM ${CONVERSATIONS_TABLE} ORDER BY id ASC;`)
    .all();
  return map(rows, row => jsonToObject(row.json));
}

function getAllOpenGroupV1Conversations() {
  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${CONVERSATIONS_TABLE} WHERE
      type = 'group' AND
      id LIKE 'publicChat:1@%'
     ORDER BY id ASC;`
    )
    .all();

  return map(rows, row => jsonToObject(row.json));
}

function getAllOpenGroupV2Conversations() {
  // first _ matches all opengroupv1,
  // second _ force a second char to be there, so it can only be opengroupv2 convos

  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${CONVERSATIONS_TABLE} WHERE
      type = 'group' AND
      id LIKE 'publicChat:__%@%'
     ORDER BY id ASC;`
    )
    .all();

  return map(rows, row => jsonToObject(row.json));
}

function getPubkeysInPublicConversation(conversationId) {
  const rows = globalInstance
    .prepare(
      `SELECT DISTINCT source FROM ${MESSAGES_TABLE} WHERE
      conversationId = $conversationId
     ORDER BY received_at DESC LIMIT ${MAX_PUBKEYS_MEMBERS};`
    )
    .all({
      conversationId,
    });

  return map(rows, row => row.source);
}

function getAllGroupsInvolvingId(id) {
  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${CONVERSATIONS_TABLE} WHERE
      type = 'group' AND
      members LIKE $id
     ORDER BY id ASC;`
    )
    .all({
      id: `%${id}%`,
    });

  return map(rows, row => jsonToObject(row.json));
}

function searchConversations(query, { limit } = {}) {
  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${CONVERSATIONS_TABLE} WHERE
      (
        id LIKE $id OR
        name LIKE $name OR
        profileName LIKE $profileName
      )
     ORDER BY id ASC
     LIMIT $limit`
    )
    .all({
      id: `%${query}%`,
      name: `%${query}%`,
      profileName: `%${query}%`,
      limit: limit || 50,
    });

  return map(rows, row => jsonToObject(row.json));
}

function searchMessages(query, { limit } = {}) {
  const rows = globalInstance
    .prepare(
      `SELECT
      messages.json,
      snippet(messages_fts, -1, '<<left>>', '<<right>>', '...', 15) as snippet
    FROM ${MESSAGES_FTS_TABLE}
    INNER JOIN ${MESSAGES_TABLE} on messages_fts.id = messages.id
    WHERE
      messages_fts match $query
    ORDER BY messages.received_at DESC
    LIMIT $limit;`
    )
    .all({
      query,
      limit: limit || 100,
    });

  return map(rows, row => ({
    ...jsonToObject(row.json),
    snippet: row.snippet,
  }));
}

function searchMessagesInConversation(query, conversationId, { limit } = {}) {
  const rows = globalInstance
    .prepare(
      `SELECT
      messages.json,
      snippet(messages_fts, -1, '<<left>>', '<<right>>', '...', 15) as snippet
    FROM messages_fts
    INNER JOIN ${MESSAGES_TABLE} on messages_fts.id = messages.id
    WHERE
      messages_fts match $query AND
      messages.conversationId = $conversationId
    ORDER BY messages.received_at DESC
    LIMIT $limit;`
    )
    .all({
      query,
      conversationId,
      limit: limit || 100,
    });

  return map(rows, row => ({
    ...jsonToObject(row.json),
    snippet: row.snippet,
  }));
}

function getMessageCount() {
  const row = globalInstance.prepare(`SELECT count(*) from ${MESSAGES_TABLE};`).get();

  if (!row) {
    throw new Error(`getMessageCount: Unable to get count of ${MESSAGES_TABLE}`);
  }
  return row['count(*)'];
}

function saveMessage(data) {
  const {
    body,
    conversationId,
    // eslint-disable-next-line camelcase
    expires_at,
    hasAttachments,
    hasFileAttachments,
    hasVisualMediaAttachments,
    id,
    serverId,
    serverTimestamp,
    // eslint-disable-next-line camelcase
    received_at,
    schemaVersion,
    sent,
    // eslint-disable-next-line camelcase
    sent_at,
    source,
    sourceDevice,
    type,
    unread,
    expireTimer,
    expirationStartTimestamp,
  } = data;

  if (!id) {
    throw new Error('id is required');
  }

  if (!conversationId) {
    throw new Error('conversationId is required');
  }

  const payload = {
    id,
    json: objectToJSON(data),

    serverId,
    serverTimestamp,
    body,
    conversationId,
    expirationStartTimestamp,
    expires_at,
    expireTimer,
    hasAttachments,
    hasFileAttachments,
    hasVisualMediaAttachments,
    received_at,
    schemaVersion,
    sent,
    sent_at,
    source,
    sourceDevice,
    type: type || '',
    unread,
  };

  globalInstance
    .prepare(
      `INSERT OR REPLACE INTO ${MESSAGES_TABLE} (
    id,
    json,
    serverId,
    serverTimestamp,
    body,
    conversationId,
    expirationStartTimestamp,
    expires_at,
    expireTimer,
    hasAttachments,
    hasFileAttachments,
    hasVisualMediaAttachments,
    received_at,
    schemaVersion,
    sent,
    sent_at,
    source,
    sourceDevice,
    type,
    unread
  ) values (
    $id,
    $json,
    $serverId,
    $serverTimestamp,
    $body,
    $conversationId,
    $expirationStartTimestamp,
    $expires_at,
    $expireTimer,
    $hasAttachments,
    $hasFileAttachments,
    $hasVisualMediaAttachments,
    $received_at,
    $schemaVersion,
    $sent,
    $sent_at,
    $source,
    $sourceDevice,
    $type,
    $unread
  );`
    )
    .run(payload);

  return id;
}

function saveSeenMessageHashes(arrayOfHashes) {
  globalInstance.transaction(() => {
    map(arrayOfHashes, hashData => saveSeenMessageHash(hashData));
  })();
}

function updateLastHash(data) {
  const { convoId, snode, hash, expiresAt } = data;

  const id = convoId;

  globalInstance
    .prepare(
      `INSERT OR REPLACE INTO lastHashes (
      id,
      snode,
      hash,
      expiresAt
    ) values (
      $id,
      $snode,
      $hash,
      $expiresAt
    )`
    )
    .run({
      id,
      snode,
      hash,
      expiresAt,
    });
}

function saveSeenMessageHash(data) {
  const { expiresAt, hash } = data;
  try {
    globalInstance
      .prepare(
        `INSERT INTO seenMessages (
      expiresAt,
      hash
      ) values (
        $expiresAt,
        $hash
        );`
      )
      .run({
        expiresAt,
        hash,
      });
  } catch (e) {
    console.warn('saveSeenMessageHash failed:', e);
  }
}

function cleanLastHashes() {
  globalInstance.prepare('DELETE FROM lastHashes WHERE expiresAt <= $now;').run({
    now: Date.now(),
  });
}

function cleanSeenMessages() {
  globalInstance.prepare('DELETE FROM seenMessages WHERE expiresAt <= $now;').run({
    now: Date.now(),
  });
}

function saveMessages(arrayOfMessages) {
  globalInstance.transaction(() => {
    map(arrayOfMessages, message => saveMessage(message));
  })();
}

function removeMessage(id, instance) {
  if (!Array.isArray(id)) {
    (globalInstance || instance)
      .prepare(`DELETE FROM ${MESSAGES_TABLE} WHERE id = $id;`)
      .run({ id });
    return;
  }

  if (!id.length) {
    throw new Error('removeMessages: No ids to delete!');
  }

  // Our node interface doesn't seem to allow you to replace one single ? with an array
  (globalInstance || instance)
    .prepare(`DELETE FROM ${MESSAGES_TABLE} WHERE id IN ( ${id.map(() => '?').join(', ')} );`)
    .run(id);
}

function getMessageIdsFromServerIds(serverIds, conversationId) {
  if (!Array.isArray(serverIds)) {
    return [];
  }

  // Sanitize the input as we're going to use it directly in the query
  const validIds = serverIds.map(id => Number(id)).filter(n => !Number.isNaN(n));

  /*
    Sqlite3 doesn't have a good way to have `IN` query with another query.
    See: https://github.com/mapbox/node-sqlite3/issues/762.

    So we have to use templating to insert the values.
  */
  const rows = globalInstance
    .prepare(
      `SELECT id FROM ${MESSAGES_TABLE} WHERE
    serverId IN (${validIds.join(',')}) AND
    conversationId = $conversationId;`
    )
    .all({
      conversationId,
    });
  return rows.map(row => row.id);
}

function getMessageById(id) {
  const row = globalInstance.prepare(`SELECT * FROM ${MESSAGES_TABLE} WHERE id = $id;`).get({
    id,
  });

  if (!row) {
    return null;
  }

  return jsonToObject(row.json);
}

function getMessageBySender({ source, sourceDevice, sentAt }) {
  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${MESSAGES_TABLE} WHERE
      source = $source AND
      sourceDevice = $sourceDevice AND
      sent_at = $sent_at;`
    )
    .all({
      source,
      sourceDevice,
      sent_at: sentAt,
    });

  return map(rows, row => jsonToObject(row.json));
}

function getMessageBySenderAndTimestamp({ source, timestamp }) {
  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${MESSAGES_TABLE} WHERE
      source = $source AND
      sent_at = $timestamp;`
    )
    .all({
      source,
      timestamp,
    });

  return map(rows, row => jsonToObject(row.json));
}

function getMessageBySenderAndServerTimestamp({ source, serverTimestamp }) {
  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${MESSAGES_TABLE} WHERE
      source = $source AND
      serverTimestamp = $serverTimestamp;`
    )
    .all({
      source,
      serverTimestamp,
    });

  return map(rows, row => jsonToObject(row.json));
}

function getUnreadByConversation(conversationId) {
  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${MESSAGES_TABLE} WHERE
      unread = $unread AND
      conversationId = $conversationId
     ORDER BY received_at DESC;`
    )
    .all({
      unread: 1,
      conversationId,
    });

  return map(rows, row => jsonToObject(row.json));
}

function getUnreadCountByConversation(conversationId) {
  const row = globalInstance
    .prepare(
      `SELECT count(*) from ${MESSAGES_TABLE} WHERE
    unread = $unread AND
    conversationId = $conversationId
    ORDER BY received_at DESC;`
    )
    .get({
      unread: 1,
      conversationId,
    });

  if (!row) {
    throw new Error(
      `getUnreadCountByConversation: Unable to get unread count of ${conversationId}`
    );
  }

  return row['count(*)'];
}

// Note: Sorting here is necessary for getting the last message (with limit 1)
// be sure to update the sorting order to sort messages on redux too (sortMessages)

function getMessagesByConversation(
  conversationId,
  { limit = 100, receivedAt = Number.MAX_VALUE, type = '%' } = {}
) {
  const rows = globalInstance
    .prepare(
      `
    SELECT json FROM ${MESSAGES_TABLE} WHERE
      conversationId = $conversationId AND
      received_at < $received_at AND
      type LIKE $type
      ORDER BY serverTimestamp DESC, serverId DESC, sent_at DESC, received_at DESC
    LIMIT $limit;
    `
    )
    .all({
      conversationId,
      received_at: receivedAt,
      limit,
      type,
    });
  return map(rows, row => jsonToObject(row.json));
}

function getFirstUnreadMessageIdInConversation(conversationId) {
  const rows = globalInstance
    .prepare(
      `
    SELECT id FROM ${MESSAGES_TABLE} WHERE
      conversationId = $conversationId AND
      unread = $unread
      ORDER BY serverTimestamp ASC, serverId ASC, sent_at ASC, received_at ASC
    LIMIT 1;
    `
    )
    .all({
      conversationId,
      unread: 1,
    });

  if (rows.length === 0) {
    return undefined;
  }
  return rows[0].id;
}

function getMessagesBySentAt(sentAt) {
  const rows = globalInstance
    .prepare(
      `SELECT * FROM ${MESSAGES_TABLE}
     WHERE sent_at = $sent_at
     ORDER BY received_at DESC;`
    )
    .all({
      sent_at: sentAt,
    });

  return map(rows, row => jsonToObject(row.json));
}

function getLastHashBySnode(convoId, snode) {
  const row = globalInstance
    .prepare('SELECT * FROM lastHashes WHERE snode = $snode AND id = $id;')
    .get({
      snode,
      id: convoId,
    });

  if (!row) {
    return null;
  }

  return row.hash;
}

function getSeenMessagesByHashList(hashes) {
  const rows = globalInstance
    .prepare(`SELECT * FROM seenMessages WHERE hash IN ( ${hashes.map(() => '?').join(', ')} );`)
    .all(hashes);

  return map(rows, row => row.hash);
}

function getExpiredMessages() {
  const now = Date.now();

  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${MESSAGES_TABLE} WHERE
      expires_at IS NOT NULL AND
      expires_at <= $expires_at
     ORDER BY expires_at ASC;`
    )
    .all({
      expires_at: now,
    });

  return map(rows, row => jsonToObject(row.json));
}

function getOutgoingWithoutExpiresAt() {
  const rows = globalInstance
    .prepare(
      `
    SELECT json FROM ${MESSAGES_TABLE}
    WHERE
      expireTimer > 0 AND
      expires_at IS NULL AND
      type IS 'outgoing'
    ORDER BY expires_at ASC;
  `
    )
    .all();

  return map(rows, row => jsonToObject(row.json));
}

function getNextExpiringMessage() {
  const rows = globalInstance
    .prepare(
      `
    SELECT json FROM ${MESSAGES_TABLE}
    WHERE expires_at > 0
    ORDER BY expires_at ASC
    LIMIT 1;
  `
    )
    .all();

  return map(rows, row => jsonToObject(row.json));
}

/* Unproccessed a received messages not yet processed */
function saveUnprocessed(data) {
  const { id, timestamp, version, attempts, envelope, senderIdentity, messageHash } = data;
  if (!id) {
    throw new Error(`saveUnprocessed: id was falsey: ${id}`);
  }

  globalInstance
    .prepare(
      `INSERT OR REPLACE INTO unprocessed (
      id,
      timestamp,
      version,
      attempts,
      envelope,
      senderIdentity,
      serverHash
    ) values (
      $id,
      $timestamp,
      $version,
      $attempts,
      $envelope,
      $senderIdentity,
      $messageHash
    );`
    )
    .run({
      id,
      timestamp,
      version,
      attempts,
      envelope,
      senderIdentity,
      messageHash,
    });

  return id;
}

function updateUnprocessedAttempts(id, attempts) {
  globalInstance.prepare('UPDATE unprocessed SET attempts = $attempts WHERE id = $id;').run({
    id,
    attempts,
  });
}
function updateUnprocessedWithData(id, data = {}) {
  const { source, sourceDevice, serverTimestamp, decrypted, senderIdentity } = data;

  globalInstance
    .prepare(
      `UPDATE unprocessed SET
      source = $source,
      sourceDevice = $sourceDevice,
      serverTimestamp = $serverTimestamp,
      decrypted = $decrypted,
      senderIdentity = $senderIdentity
    WHERE id = $id;`
    )
    .run({
      id,
      source,
      sourceDevice,
      serverTimestamp,
      decrypted,
      senderIdentity,
    });
}

function getUnprocessedById(id) {
  const row = globalInstance.prepare('SELECT * FROM unprocessed WHERE id = $id;').get({
    id,
  });

  return row;
}

function getUnprocessedCount() {
  const row = globalInstance.prepare('SELECT count(*) from unprocessed;').get();

  if (!row) {
    throw new Error('getMessageCount: Unable to get count of unprocessed');
  }

  return row['count(*)'];
}

function getAllUnprocessed() {
  const rows = globalInstance.prepare('SELECT * FROM unprocessed ORDER BY timestamp ASC;').all();

  return rows;
}

function removeUnprocessed(id) {
  if (!Array.isArray(id)) {
    globalInstance.prepare('DELETE FROM unprocessed WHERE id = $id;').run({ id });
    return;
  }

  if (!id.length) {
    throw new Error('removeUnprocessed: No ids to delete!');
  }

  // Our node interface doesn't seem to allow you to replace one single ? with an array
  globalInstance
    .prepare(`DELETE FROM unprocessed WHERE id IN ( ${id.map(() => '?').join(', ')} );`)
    .run(id);
}

function removeAllUnprocessed() {
  globalInstance.prepare('DELETE FROM unprocessed;').run();
}

function getNextAttachmentDownloadJobs(limit, options = {}) {
  const timestamp = options.timestamp || Date.now();

  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${ATTACHMENT_DOWNLOADS_TABLE}
    WHERE pending = 0 AND timestamp < $timestamp
    ORDER BY timestamp DESC
    LIMIT $limit;`
    )
    .all({
      limit,
      timestamp,
    });

  return map(rows, row => jsonToObject(row.json));
}

function saveAttachmentDownloadJob(job) {
  const { id, pending, timestamp } = job;
  if (!id) {
    throw new Error('saveAttachmentDownloadJob: Provided job did not have a truthy id');
  }

  globalInstance
    .prepare(
      `INSERT OR REPLACE INTO ${ATTACHMENT_DOWNLOADS_TABLE} (
      id,
      pending,
      timestamp,
      json
    ) values (
      $id,
      $pending,
      $timestamp,
      $json
    )`
    )
    .run({
      id,
      pending,
      timestamp,
      json: objectToJSON(job),
    });
}

function setAttachmentDownloadJobPending(id, pending) {
  globalInstance
    .prepare(`UPDATE ${ATTACHMENT_DOWNLOADS_TABLE} SET pending = $pending WHERE id = $id;`)
    .run({
      id,
      pending,
    });
}

function resetAttachmentDownloadPending() {
  globalInstance
    .prepare(`UPDATE ${ATTACHMENT_DOWNLOADS_TABLE} SET pending = 0 WHERE pending != 0;`)
    .run();
}
function removeAttachmentDownloadJob(id) {
  return removeById(ATTACHMENT_DOWNLOADS_TABLE, id);
}
function removeAllAttachmentDownloadJobs() {
  globalInstance.exec(`DELETE FROM ${ATTACHMENT_DOWNLOADS_TABLE};`);
}

// All data in database
function removeAll() {
  globalInstance.exec(`
    DELETE FROM ${IDENTITY_KEYS_TABLE};

    DELETE FROM ${ITEMS_TABLE};
    DELETE FROM unprocessed;
    DELETE FROM lastHashes;
    DELETE FROM ${NODES_FOR_PUBKEY_TABLE};
    DELETE FROM ${CLOSED_GROUP_V2_KEY_PAIRS_TABLE};
    DELETE FROM seenMessages;
    DELETE FROM ${CONVERSATIONS_TABLE};
    DELETE FROM ${MESSAGES_TABLE};
    DELETE FROM ${ATTACHMENT_DOWNLOADS_TABLE};
    DELETE FROM ${MESSAGES_FTS_TABLE};
`);
}

function removeAllConversations() {
  globalInstance.prepare(`DELETE FROM ${CONVERSATIONS_TABLE};`).run();
}

function getMessagesWithVisualMediaAttachments(conversationId, { limit }) {
  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${MESSAGES_TABLE} WHERE
      conversationId = $conversationId AND
      hasVisualMediaAttachments = 1
     ORDER BY received_at DESC
     LIMIT $limit;`
    )
    .all({
      conversationId,
      limit,
    });

  return map(rows, row => jsonToObject(row.json));
}

function getMessagesWithFileAttachments(conversationId, { limit }) {
  const rows = globalInstance
    .prepare(
      `SELECT json FROM ${MESSAGES_TABLE} WHERE
      conversationId = $conversationId AND
      hasFileAttachments = 1
     ORDER BY received_at DESC
     LIMIT $limit;`
    )
    .all({
      conversationId,
      limit,
    });

  return map(rows, row => jsonToObject(row.json));
}

function getExternalFilesForMessage(message) {
  const { attachments, contact, quote, preview } = message;
  const files = [];

  forEach(attachments, attachment => {
    const { path: file, thumbnail, screenshot } = attachment;
    if (file) {
      files.push(file);
    }

    if (thumbnail && thumbnail.path) {
      files.push(thumbnail.path);
    }

    if (screenshot && screenshot.path) {
      files.push(screenshot.path);
    }
  });

  if (quote && quote.attachments && quote.attachments.length) {
    forEach(quote.attachments, attachment => {
      const { thumbnail } = attachment;

      if (thumbnail && thumbnail.path) {
        files.push(thumbnail.path);
      }
    });
  }

  if (contact && contact.length) {
    forEach(contact, item => {
      const { avatar } = item;

      if (avatar && avatar.avatar && avatar.avatar.path) {
        files.push(avatar.avatar.path);
      }
    });
  }

  if (preview && preview.length) {
    forEach(preview, item => {
      const { image } = item;

      if (image && image.path) {
        files.push(image.path);
      }
    });
  }

  return files;
}

function getExternalFilesForConversation(conversation) {
  const { avatar, profileAvatar } = conversation;
  const files = [];

  if (avatar && avatar.path) {
    files.push(avatar.path);
  }

  if (profileAvatar && profileAvatar.path) {
    files.push(profileAvatar.path);
  }

  return files;
}

function removeKnownAttachments(allAttachments) {
  const lookup = fromPairs(map(allAttachments, file => [file, true]));
  const chunkSize = 50;

  const total = getMessageCount();
  console.log(`removeKnownAttachments: About to iterate through ${total} messages`);

  let count = 0;
  let complete = false;
  let id = '';

  while (!complete) {
    const rows = globalInstance
      .prepare(
        `SELECT json FROM ${MESSAGES_TABLE}
       WHERE id > $id
       ORDER BY id ASC
       LIMIT $chunkSize;`
      )
      .all({
        id,
        chunkSize,
      });

    const messages = map(rows, row => jsonToObject(row.json));
    forEach(messages, message => {
      const externalFiles = getExternalFilesForMessage(message);
      forEach(externalFiles, file => {
        delete lookup[file];
      });
    });

    const lastMessage = last(messages);
    if (lastMessage) {
      ({ id } = lastMessage);
    }
    complete = messages.length < chunkSize;
    count += messages.length;
  }

  console.log(`removeKnownAttachments: Done processing ${count} ${MESSAGES_TABLE}`);

  complete = false;
  count = 0;
  // Though conversations.id is a string, this ensures that, when coerced, this
  //   value is still a string but it's smaller than every other string.
  id = 0;

  const conversationTotal = getConversationCount();
  console.log(
    `removeKnownAttachments: About to iterate through ${conversationTotal} ${CONVERSATIONS_TABLE}`
  );

  while (!complete) {
    const rows = globalInstance
      .prepare(
        `SELECT json FROM ${CONVERSATIONS_TABLE}
       WHERE id > $id
       ORDER BY id ASC
       LIMIT $chunkSize;`
      )
      .all({
        id,
        chunkSize,
      });

    const conversations = map(rows, row => jsonToObject(row.json));
    forEach(conversations, conversation => {
      const externalFiles = getExternalFilesForConversation(conversation);
      forEach(externalFiles, file => {
        delete lookup[file];
      });
    });

    const lastMessage = last(conversations);
    if (lastMessage) {
      ({ id } = lastMessage);
    }
    complete = conversations.length < chunkSize;
    count += conversations.length;
  }

  console.log(`removeKnownAttachments: Done processing ${count} ${CONVERSATIONS_TABLE}`);

  return Object.keys(lookup);
}

function getMessagesCountByConversation(instance, conversationId) {
  const row = instance
    .prepare(`SELECT count(*) from ${MESSAGES_TABLE} WHERE conversationId = $conversationId;`)
    .get({ conversationId });

  return row ? row['count(*)'] : 0;
}

function getAllClosedGroupConversationsV1(instance) {
  const rows = (globalInstance || instance)
    .prepare(
      `SELECT json FROM ${CONVERSATIONS_TABLE} WHERE
      type = 'group' AND
      id NOT LIKE 'publicChat:%'
     ORDER BY id ASC;`
    )
    .all();

  return map(rows, row => jsonToObject(row.json));
}

function remove05PrefixFromStringIfNeeded(str) {
  if (str.length === 66 && str.startsWith('05')) {
    return str.substr(2);
  }
  return str;
}

function updateExistingClosedGroupV1ToClosedGroupV2(db) {
  // the migration is called only once, so all current groups not being open groups are v1 closed group.
  const allClosedGroupV1 = getAllClosedGroupConversationsV1(db) || [];

  allClosedGroupV1.forEach(groupV1 => {
    const groupId = groupV1.id;
    try {
      console.log('Migrating closed group v1 to v2: pubkey', groupId);
      const groupV1IdentityKey = getIdentityKeyById(groupId, db);
      const encryptionPubKeyWithoutPrefix = remove05PrefixFromStringIfNeeded(groupV1IdentityKey.id);

      // Note:
      // this is what we get from getIdentityKeyById:
      //   {
      //     id: string;
      //     secretKey?: string;
      //   }

      // and this is what we want saved in db:
      //   {
      //    publicHex: string; // without prefix
      //    privateHex: string;
      //   }
      const keyPair = {
        publicHex: encryptionPubKeyWithoutPrefix,
        privateHex: groupV1IdentityKey.secretKey,
      };
      addClosedGroupEncryptionKeyPair(groupId, keyPair, db);
    } catch (e) {
      console.warn(e);
    }
  });
}

/**
 * The returned array is ordered based on the timestamp, the latest is at the end.
 * @param {*} groupPublicKey string | PubKey
 */
function getAllEncryptionKeyPairsForGroup(groupPublicKey) {
  const rows = getAllEncryptionKeyPairsForGroupRaw(groupPublicKey);

  return map(rows, row => jsonToObject(row.json));
}

function getAllEncryptionKeyPairsForGroupRaw(groupPublicKey) {
  const pubkeyAsString = groupPublicKey.key ? groupPublicKey.key : groupPublicKey;
  const rows = globalInstance
    .prepare(
      `SELECT * FROM ${CLOSED_GROUP_V2_KEY_PAIRS_TABLE} WHERE groupPublicKey = $groupPublicKey ORDER BY timestamp ASC;`
    )
    .all({
      groupPublicKey: pubkeyAsString,
    });

  return rows;
}

function getLatestClosedGroupEncryptionKeyPair(groupPublicKey) {
  const rows = getAllEncryptionKeyPairsForGroup(groupPublicKey);
  if (!rows || rows.length === 0) {
    return undefined;
  }
  return rows[rows.length - 1];
}

function addClosedGroupEncryptionKeyPair(groupPublicKey, keypair, instance) {
  const timestamp = Date.now();

  (globalInstance || instance)
    .prepare(
      `INSERT OR REPLACE INTO ${CLOSED_GROUP_V2_KEY_PAIRS_TABLE} (
      groupPublicKey,
      timestamp,
        json
        ) values (
          $groupPublicKey,
          $timestamp,
          $json
          );`
    )
    .run({
      groupPublicKey,
      timestamp,
      json: objectToJSON(keypair),
    });
}

function removeAllClosedGroupEncryptionKeyPairs(groupPublicKey) {
  globalInstance
    .prepare(
      `DELETE FROM ${CLOSED_GROUP_V2_KEY_PAIRS_TABLE} WHERE groupPublicKey = $groupPublicKey`
    )
    .run({
      groupPublicKey,
    });
}

/**
 * Related to Opengroup V2
 */
function getAllV2OpenGroupRooms() {
  const rows = globalInstance.prepare(`SELECT json FROM ${OPEN_GROUP_ROOMS_V2_TABLE};`).all();

  return map(rows, row => jsonToObject(row.json));
}

function getV2OpenGroupRoom(conversationId) {
  const row = globalInstance
    .prepare(`SELECT * FROM ${OPEN_GROUP_ROOMS_V2_TABLE} WHERE conversationId = $conversationId;`)
    .get({
      conversationId,
    });

  if (!row) {
    return null;
  }

  return jsonToObject(row.json);
}

function getV2OpenGroupRoomByRoomId(serverUrl, roomId) {
  const row = globalInstance
    .prepare(
      `SELECT * FROM ${OPEN_GROUP_ROOMS_V2_TABLE} WHERE serverUrl = $serverUrl AND roomId = $roomId;`
    )
    .get({
      serverUrl,
      roomId,
    });

  if (!row) {
    return null;
  }

  return jsonToObject(row.json);
}

function saveV2OpenGroupRoom(opengroupsv2Room) {
  const { serverUrl, roomId, conversationId } = opengroupsv2Room;
  globalInstance
    .prepare(
      `INSERT OR REPLACE INTO ${OPEN_GROUP_ROOMS_V2_TABLE} (
      serverUrl,
      roomId,
      conversationId,
      json
    ) values (
      $serverUrl,
      $roomId,
      $conversationId,
      $json
    )`
    )
    .run({
      serverUrl,
      roomId,
      conversationId,
      json: objectToJSON(opengroupsv2Room),
    });
}

function removeV2OpenGroupRoom(conversationId) {
  globalInstance
    .prepare(`DELETE FROM ${OPEN_GROUP_ROOMS_V2_TABLE} WHERE conversationId = $conversationId`)
    .run({
      conversationId,
    });
}

function removeOneOpenGroupV1Message() {
  const row = globalInstance
    .prepare(
      `SELECT count(*) from ${MESSAGES_TABLE} WHERE
    conversationId LIKE 'publicChat:1@%';`
    )
    .get();
  const toRemoveCount = row['count(*)'];

  if (toRemoveCount <= 0) {
    return 0;
  }
  console.warn('left opengroupv1 message to remove: ', toRemoveCount);
  const rowMessageIds = globalInstance
    .prepare(
      `SELECT id from ${MESSAGES_TABLE} WHERE conversationId LIKE 'publicChat:1@%' ORDER BY id LIMIT 1;`
    )
    .all();

  const messagesIds = map(rowMessageIds, r => r.id)[0];

  console.time('removeOneOpenGroupV1Message');

  removeMessage(messagesIds);
  console.timeEnd('removeOneOpenGroupV1Message');

  return toRemoveCount - 1;
}