/* global Signal: false */
/* global Whisper: false */
/* global assert: false */
/* global textsecure: false */
/* global _: false */

'use strict';

describe('Backup', () => {
  describe('_sanitizeFileName', () => {
    it('leaves a basic string alone', () => {
      const initial = 'Hello, how are you #5 (\'fine\' + great).jpg';
      const expected = initial;
      assert.strictEqual(Signal.Backup._sanitizeFileName(initial), expected);
    });

    it('replaces all unknown characters', () => {
      const initial = '!@$%^&*=';
      const expected = '________';
      assert.strictEqual(Signal.Backup._sanitizeFileName(initial), expected);
    });
  });

  describe('_trimFileName', () => {
    it('handles a file with no extension', () => {
      const initial = '0123456789012345678901234567890123456789';
      const expected = '012345678901234567890123456789';
      assert.strictEqual(Signal.Backup._trimFileName(initial), expected);
    });

    it('handles a file with a long extension', () => {
      const initial = '0123456789012345678901234567890123456789.01234567890123456789';
      const expected = '012345678901234567890123456789';
      assert.strictEqual(Signal.Backup._trimFileName(initial), expected);
    });

    it('handles a file with a normal extension', () => {
      const initial = '01234567890123456789012345678901234567890123456789.jpg';
      const expected = '012345678901234567890123.jpg';
      assert.strictEqual(Signal.Backup._trimFileName(initial), expected);
    });
  });

  describe('_getExportAttachmentFileName', () => {
    it('uses original filename if attachment has one', () => {
      const message = {
        body: 'something',
      };
      const index = 0;
      const attachment = {
        fileName: 'blah.jpg',
      };
      const expected = 'blah.jpg';

      const actual = Signal.Backup._getExportAttachmentFileName(
        message,
        index,
        attachment
      );
      assert.strictEqual(actual, expected);
    });

    it('uses attachment id if no filename', () => {
      const message = {
        body: 'something',
      };
      const index = 0;
      const attachment = {
        id: '123',
      };
      const expected = '123';

      const actual = Signal.Backup._getExportAttachmentFileName(
        message,
        index,
        attachment
      );
      assert.strictEqual(actual, expected);
    });

    it('uses filename and contentType if available', () => {
      const message = {
        body: 'something',
      };
      const index = 0;
      const attachment = {
        id: '123',
        contentType: 'image/jpeg',
      };
      const expected = '123.jpeg';

      const actual = Signal.Backup._getExportAttachmentFileName(
        message,
        index,
        attachment
      );
      assert.strictEqual(actual, expected);
    });

    it('handles strange contentType', () => {
      const message = {
        body: 'something',
      };
      const index = 0;
      const attachment = {
        id: '123',
        contentType: 'something',
      };
      const expected = '123.something';

      const actual = Signal.Backup._getExportAttachmentFileName(
        message,
        index,
        attachment
      );
      assert.strictEqual(actual, expected);
    });
  });

  describe('_getAnonymousAttachmentFileName', () => {
    it('uses message id', () => {
      const message = {
        id: 'id-45',
        body: 'something',
      };
      const index = 0;
      const attachment = {
        fileName: 'blah.jpg',
      };
      const expected = 'id-45';

      const actual = Signal.Backup._getAnonymousAttachmentFileName(
        message,
        index,
        attachment
      );
      assert.strictEqual(actual, expected);
    });

    it('appends index if it is above zero', () => {
      const message = {
        id: 'id-45',
        body: 'something',
      };
      const index = 1;
      const attachment = {
        fileName: 'blah.jpg',
      };
      const expected = 'id-45-1';

      const actual = Signal.Backup._getAnonymousAttachmentFileName(
        message,
        index,
        attachment
      );
      assert.strictEqual(actual, expected);
    });
  });

  describe('_getConversationDirName', () => {
    it('uses name if available', () => {
      const conversation = {
        active_at: 123,
        name: '0123456789012345678901234567890123456789',
        id: 'id',
      };
      const expected = '123 (012345678901234567890123456789 id)';
      assert.strictEqual(Signal.Backup._getConversationDirName(conversation), expected);
    });

    it('uses just id if name is not available', () => {
      const conversation = {
        active_at: 123,
        id: 'id',
      };
      const expected = '123 (id)';
      assert.strictEqual(Signal.Backup._getConversationDirName(conversation), expected);
    });

    it('uses inactive for missing active_at', () => {
      const conversation = {
        name: 'name',
        id: 'id',
      };
      const expected = 'inactive (name id)';
      assert.strictEqual(Signal.Backup._getConversationDirName(conversation), expected);
    });
  });

  describe('_getConversationLoggingName', () => {
    it('uses plain id if conversation is private', () => {
      const conversation = {
        active_at: 123,
        id: 'id',
        type: 'private',
      };
      const expected = '123 (id)';
      assert.strictEqual(
        Signal.Backup._getConversationLoggingName(conversation),
        expected
      );
    });

    it('uses just id if name is not available', () => {
      const conversation = {
        active_at: 123,
        id: 'groupId',
        type: 'group',
      };
      const expected = '123 ([REDACTED_GROUP]pId)';
      assert.strictEqual(
        Signal.Backup._getConversationLoggingName(conversation),
        expected
      );
    });

    it('uses inactive for missing active_at', () => {
      const conversation = {
        id: 'id',
        type: 'private',
      };
      const expected = 'inactive (id)';
      assert.strictEqual(
        Signal.Backup._getConversationLoggingName(conversation),
        expected
      );
    });
  });

  describe('end-to-end', () => {
    it('exports then imports to produce the same data we started with', async () => {
      const {
        attachmentsPath,
        fs,
        fse,
        glob,
        path,
        tmp,
      } = window.test;
      const {
        upgradeMessageSchema,
        loadAttachmentData,
      } = window.Signal.Migrations;

      const key = new Uint8Array([
        1, 3, 4, 5, 6, 7, 8, 11,
        23, 34, 1, 34, 3, 5, 45, 45,
        1, 3, 4, 5, 6, 7, 8, 11,
        23, 34, 1, 34, 3, 5, 45, 45,
      ]);
      const attachmentsPattern = path.join(attachmentsPath, '**');

      const OUR_NUMBER = '+12025550000';
      const CONTACT_ONE_NUMBER = '+12025550001';

      async function wrappedLoadAttachment(attachment) {
        return _.omit(await loadAttachmentData(attachment), ['path']);
      }

      async function clearAllData() {
        await textsecure.storage.protocol.removeAllData();
        await fse.emptyDir(attachmentsPath);
      }

      function removeId(model) {
        return _.omit(model, ['id']);
      }

      const slash = path.sep === '/' ? '\\/' : '\\\\';
      const twoSlashes = new RegExp(`.*${slash}.*${slash}.*`);
      function removeDirs(dirs) {
        return _.filter(dirs, (fullDir) => {
          const dir = fullDir.replace(attachmentsPath, '');
          return twoSlashes.test(dir);
        });
      }

      function _mapQuotedAttachments(mapper) {
        return async (message, context) => {
          if (!message.quote) {
            return message;
          }

          const wrappedMapper = async (attachment) => {
            if (!attachment || !attachment.thumbnail) {
              return attachment;
            }

            return Object.assign({}, attachment, {
              thumbnail: await mapper(attachment.thumbnail, context),
            });
          };

          const quotedAttachments = (message.quote && message.quote.attachments) || [];

          return Object.assign({}, message, {
            quote: Object.assign({}, message.quote, {
              attachments: await Promise.all(quotedAttachments.map(wrappedMapper)),
            }),
          });
        };
      }

      async function loadAllFilesFromDisk(message) {
        const loadThumbnails = _mapQuotedAttachments((thumbnail) => {
          // we want to be bulletproof to thumbnails without data
          if (!thumbnail.path) {
            return thumbnail;
          }

          return wrappedLoadAttachment(thumbnail);
        });

        const promises = (message.attachments || []).map(attachment =>
          wrappedLoadAttachment(attachment));

        return Object.assign(
          {},
          await loadThumbnails(message),
          {
            attachments: await Promise.all(promises),
          }
        );
      }

      let backupDir;
      try {
        const ATTACHMENT_COUNT = 2;
        const MESSAGE_COUNT = 1;
        const CONVERSATION_COUNT = 1;

        const messageWithAttachments = {
          conversationId: CONTACT_ONE_NUMBER,
          body: 'Totally!',
          source: OUR_NUMBER,
          received_at: 1524185933350,
          timestamp: 1524185933350,
          errors: [],
          attachments: [{
            contentType: 'image/gif',
            fileName: 'sad_cat.gif',
            data: new Uint8Array([
              1, 2, 3, 4, 5, 6, 7, 8,
              1, 2, 3, 4, 5, 6, 7, 8,
              1, 2, 3, 4, 5, 6, 7, 8,
              1, 2, 3, 4, 5, 6, 7, 8,
            ]).buffer,
          }],
          quote: {
            text: "Isn't it cute?",
            author: CONTACT_ONE_NUMBER,
            id: 12345678,
            attachments: [{
              contentType: 'audio/mp3',
              fileName: 'song.mp3',
            }, {
              contentType: 'image/gif',
              fileName: 'happy_cat.gif',
              thumbnail: {
                contentType: 'image/png',
                data: new Uint8Array([
                  2, 2, 3, 4, 5, 6, 7, 8,
                  1, 2, 3, 4, 5, 6, 7, 8,
                  1, 2, 3, 4, 5, 6, 7, 8,
                  1, 2, 3, 4, 5, 6, 7, 8,
                ]).buffer,
              },
            }],
          },
        };

        console.log('Backup test: Clear all data');
        await clearAllData();

        console.log('Backup test: Create models, save to db/disk');
        const message = await upgradeMessageSchema(messageWithAttachments);
        console.log({ message });
        const messageModel = new Whisper.Message(message);
        await window.wrapDeferred(messageModel.save());

        const conversation = {
          active_at: 1524185933350,
          color: 'orange',
          expireTimer: 0,
          id: CONTACT_ONE_NUMBER,
          lastMessage: 'Heyo!',
          name: 'Someone Somewhere',
          profileAvatar: {
            contentType: 'image/jpeg',
            data: new Uint8Array([
              3, 2, 3, 4, 5, 6, 7, 8,
              1, 2, 3, 4, 5, 6, 7, 8,
              1, 2, 3, 4, 5, 6, 7, 8,
              1, 2, 3, 4, 5, 6, 7, 8,
            ]).buffer,
            size: 64,
          },
          profileKey: new Uint8Array([
            4, 2, 3, 4, 5, 6, 7, 8,
            1, 2, 3, 4, 5, 6, 7, 8,
            1, 2, 3, 4, 5, 6, 7, 8,
            1, 2, 3, 4, 5, 6, 7, 8,
          ]).buffer,
          profileName: 'Someone! 🤔',
          profileSharing: true,
          timestamp: 1524185933350,
          tokens: [
            'someone somewhere',
            'someone',
            'somewhere',
            '2025550001',
            '12025550001',
          ],
          type: 'private',
          unreadCount: 0,
          verified: 0,
        };
        console.log({ conversation });
        const conversationModel = new Whisper.Conversation(conversation);
        await window.wrapDeferred(conversationModel.save());

        console.log('Backup test: Ensure that all attachments were saved to disk');
        const attachmentFiles = removeDirs(glob.sync(attachmentsPattern));
        console.log({ attachmentFiles });
        assert.strictEqual(ATTACHMENT_COUNT, attachmentFiles.length);

        console.log('Backup test: Export!');
        backupDir = tmp.dirSync().name;
        console.log({ backupDir });
        await Signal.Backup.exportToDirectory(backupDir, { key });

        console.log('Backup test: Ensure that messages.zip exists');
        const zipPath = path.join(backupDir, 'messages.zip');
        const messageZipExists = fs.existsSync(zipPath);
        assert.strictEqual(true, messageZipExists);

        console.log('Backup test: Ensure that all attachments made it to backup dir');
        const backupAttachmentPattern = path.join(backupDir, 'attachments/*');
        const backupAttachments = glob.sync(backupAttachmentPattern);
        console.log({ backupAttachments });
        assert.strictEqual(ATTACHMENT_COUNT, backupAttachments.length);

        console.log('Backup test: Clear all data');
        await clearAllData();

        console.log('Backup test: Import!');
        await Signal.Backup.importFromDirectory(backupDir, { key });

        console.log('Backup test: ensure that all attachments were imported');
        const recreatedAttachmentFiles = removeDirs(glob.sync(attachmentsPattern));
        console.log({ recreatedAttachmentFiles });
        assert.strictEqual(ATTACHMENT_COUNT, recreatedAttachmentFiles.length);
        assert.deepEqual(attachmentFiles, recreatedAttachmentFiles);

        console.log('Backup test: Check messages');
        const messageCollection = new Whisper.MessageCollection();
        await window.wrapDeferred(messageCollection.fetch());
        assert.strictEqual(messageCollection.length, MESSAGE_COUNT);
        const messageFromDB = removeId(messageCollection.at(0).attributes);
        console.log({ messageFromDB, message });
        assert.deepEqual(messageFromDB, message);

        console.log('Backup test: check that all attachments were successfully imported');
        const messageWithAttachmentsFromDB = await loadAllFilesFromDisk(messageFromDB);
        console.log({ messageWithAttachmentsFromDB, messageWithAttachments });
        assert.deepEqual(
          _.omit(messageWithAttachmentsFromDB, ['schemaVersion']),
          messageWithAttachments
        );

        console.log('Backup test: check conversations');
        const conversationCollection = new Whisper.ConversationCollection();
        await window.wrapDeferred(conversationCollection.fetch());
        assert.strictEqual(conversationCollection.length, CONVERSATION_COUNT);

        const conversationFromDB = conversationCollection.at(0).attributes;
        console.log({ conversationFromDB, conversation });
        assert.deepEqual(
          conversationFromDB,
          _.omit(conversation, ['profileAvatar'])
        );

        console.log('Backup test: Clear all data');
        await clearAllData();

        console.log('Backup test: Complete!');
      } finally {
        if (backupDir) {
          console.log({ backupDir });
          console.log('Deleting', backupDir);
          await fse.remove(backupDir);
        }
      }
    });
  });
});