Method addFile

api/server/models/Message.ts:459–491

({ userId, messageId, fileName, fileUrl })

  }

  public static async addFile({ userId, messageId, fileName, fileUrl }) {
    if (!userId || !messageId || !fileName || !fileUrl) {
      throw new Error('Bad data');
    }

    const doc = await this.findOne({ _id: messageId }).setOptions({ lean: true });

    if (!doc) {
      throw new Error('Not found');
    }

    await this.checkPermission({ userId, chatId: doc.chatId });

    const messageWithFile = await this.findOneAndUpdate(
      { _id: messageId },
      {
        $push: {
          files: {
            fileName,
            fileUrl,
            addedAt: new Date(),
          },
        },
      },
      { runValidators: true, new: true },
    ).setOptions({
      lean: true,
    });

    return messageWithFile.files.find((f) => {
      return f.fileUrl === fileUrl;
    });
  }

  private static async checkPermission({ userId, chatId, doc = null }) {
    if (!userId || !chatId) {