import {
  createAndPopulateGroup,
  generateUser,
  translate as t,
  sleep,
  server,
} from '../../../../helpers/api-v3-integration.helper';
import {
  SPAM_MESSAGE_LIMIT,
  SPAM_MIN_EXEMPT_CONTRIB_LEVEL,
  TAVERN_ID,
} from '../../../../../website/server/models/group';
import { v4 as generateUUID } from 'uuid';
import { getMatchesByWordArray } from '../../../../../website/server/libs/stringUtils';
import bannedWords from '../../../../../website/server/libs/bannedWords';
import guildsAllowingBannedWords from '../../../../../website/server/libs/guildsAllowingBannedWords';
import * as email from '../../../../../website/server/libs/email';
import { IncomingWebhook } from '@slack/client';
import nconf from 'nconf';

const BASE_URL = nconf.get('BASE_URL');

describe('POST /chat', () => {
  let user, groupWithChat, member, additionalMember;
  let testMessage = 'Test Message';
  let testBannedWordMessage = 'TESTPLACEHOLDERSWEARWORDHERE';
  let testBannedWordMessage1 = 'TESTPLACEHOLDERSWEARWORDHERE1';
  let testSlurMessage = 'message with TESTPLACEHOLDERSLURWORDHERE';
  let testSlurMessage1 = 'TESTPLACEHOLDERSLURWORDHERE1';
  let bannedWordErrorMessage = t('bannedWordUsed', {swearWordsUsed: testBannedWordMessage});

  before(async () => {
    let { group, groupLeader, members } = await createAndPopulateGroup({
      groupDetails: {
        name: 'Test Guild',
        type: 'guild',
        privacy: 'public',
      },
      members: 2,
    });
    user = groupLeader;
    await user.update({'contributor.level': SPAM_MIN_EXEMPT_CONTRIB_LEVEL}); // prevent tests accidentally throwing messageGroupChatSpam
    groupWithChat = group;
    member = members[0];
    additionalMember = members[1];
  });

  it('Returns an error when no message is provided', async () => {
    await expect(user.post(`/groups/${groupWithChat._id}/chat`, { message: ''}))
      .to.eventually.be.rejected.and.eql({
        code: 400,
        error: 'BadRequest',
        message: t('invalidReqParams'),
      });
  });

  it('Returns an error when an empty message is provided', async () => {
    await expect(user.post(`/groups/${groupWithChat._id}/chat`, { message: '    '}))
      .to.eventually.be.rejected.and.eql({
        code: 400,
        error: 'BadRequest',
        message: t('invalidReqParams'),
      });
  });

  it('Returns an error when an message containing only newlines is provided', async () => {
    await expect(user.post(`/groups/${groupWithChat._id}/chat`, { message: '\n\n'}))
      .to.eventually.be.rejected.and.eql({
        code: 400,
        error: 'BadRequest',
        message: t('invalidReqParams'),
      });
  });

  it('Returns an error when group is not found', async () => {
    await expect(user.post('/groups/invalidID/chat', { message: testMessage})).to.eventually.be.rejected.and.eql({
      code: 404,
      error: 'NotFound',
      message: t('groupNotFound'),
    });
  });

  it('returns an error when chat privileges are revoked when sending a message to a public guild', async () => {
    let userWithChatRevoked = await member.update({'flags.chatRevoked': true});
    await expect(userWithChatRevoked.post(`/groups/${groupWithChat._id}/chat`, { message: testMessage})).to.eventually.be.rejected.and.eql({
      code: 401,
      error: 'NotAuthorized',
      message: t('chatPrivilegesRevoked'),
    });
  });

  context('banned word', () => {
    it('returns an error when chat message contains a banned word in tavern', async () => {
      await expect(user.post('/groups/habitrpg/chat', { message: testBannedWordMessage}))
        .to.eventually.be.rejected.and.eql({
          code: 400,
          error: 'BadRequest',
          message: bannedWordErrorMessage,
        });
    });

    it('returns an error when chat message contains a banned word in a public guild', async () => {
      let { group, members } = await createAndPopulateGroup({
        groupDetails: {
          name: 'public guild',
          type: 'guild',
          privacy: 'public',
        },
        members: 1,
      });

      await expect(members[0].post(`/groups/${group._id}/chat`, { message: testBannedWordMessage}))
        .to.eventually.be.rejected.and.eql({
          code: 400,
          error: 'BadRequest',
          message: bannedWordErrorMessage,
        });
    });

    it('errors when word is part of a phrase', async () => {
      let wordInPhrase = `phrase ${testBannedWordMessage} end`;
      await expect(user.post('/groups/habitrpg/chat', { message: wordInPhrase}))
        .to.eventually.be.rejected.and.eql({
          code: 400,
          error: 'BadRequest',
          message: bannedWordErrorMessage,
        });
    });

    it('errors when word is surrounded by non alphabet characters', async () => {
      let wordInPhrase = `_!${testBannedWordMessage}@_`;
      await expect(user.post('/groups/habitrpg/chat', { message: wordInPhrase}))
        .to.eventually.be.rejected.and.eql({
          code: 400,
          error: 'BadRequest',
          message: bannedWordErrorMessage,
        });
    });

    it('errors when word is typed in mixed case', async () => {
      let substrLength = Math.floor(testBannedWordMessage.length / 2);
      let chatMessage = testBannedWordMessage.substring(0, substrLength).toLowerCase() + testBannedWordMessage.substring(substrLength).toUpperCase();
      await expect(user.post('/groups/habitrpg/chat', { message: chatMessage }))
        .to.eventually.be.rejected.and.eql({
          code: 400,
          error: 'BadRequest',
          message: t('bannedWordUsed', {swearWordsUsed: chatMessage}),
        });
    });

    it('checks error message has all the banned words used, regardless of case', async () => {
      let testBannedWords = [testBannedWordMessage.toUpperCase(), testBannedWordMessage1.toLowerCase()];
      let chatMessage = `Mixing ${testBannedWords[0]} and ${testBannedWords[1]} is bad for you.`;
      await expect(user.post('/groups/habitrpg/chat', { message: chatMessage}))
        .to.eventually.be.rejected
        .and.have.property('message')
        .that.includes(testBannedWords.join(', '));
    });

    it('check all banned words are matched', async () => {
      let message = bannedWords.join(',').replace(/\\/g, '');
      let matches = getMatchesByWordArray(message, bannedWords);
      expect(matches.length).to.equal(bannedWords.length);
    });

    it('does not error when bad word is suffix of a word', async () => {
      let wordAsSuffix = `prefix${testBannedWordMessage}`;
      let message = await user.post('/groups/habitrpg/chat', { message: wordAsSuffix});

      expect(message.message.id).to.exist;
    });

    it('does not error when bad word is prefix of a word', async () => {
      let wordAsPrefix = `${testBannedWordMessage}suffix`;
      let message = await user.post('/groups/habitrpg/chat', { message: wordAsPrefix});

      expect(message.message.id).to.exist;
    });

    it('does not error when sending a chat message containing a banned word to a party', async () => {
      let { group, members } = await createAndPopulateGroup({
        groupDetails: {
          name: 'Party',
          type: 'party',
          privacy: 'private',
        },
        members: 1,
      });

      let message = await members[0].post(`/groups/${group._id}/chat`, { message: testBannedWordMessage});

      expect(message.message.id).to.exist;
    });

    it('does not error when sending a chat message containing a banned word to a public guild in which banned words are allowed', async () => {
      let { group, members } = await createAndPopulateGroup({
        groupDetails: {
          name: 'public guild',
          type: 'guild',
          privacy: 'public',
        },
        members: 1,
      });

      guildsAllowingBannedWords[group._id] = true;

      let message = await members[0].post(`/groups/${group._id}/chat`, { message: testBannedWordMessage});

      expect(message.message.id).to.exist;
    });

    it('does not error when sending a chat message containing a banned word to a private guild', async () => {
      let { group, members } = await createAndPopulateGroup({
        groupDetails: {
          name: 'private guild',
          type: 'guild',
          privacy: 'private',
        },
        members: 1,
      });

      let message = await members[0].post(`/groups/${group._id}/chat`, { message: testBannedWordMessage});

      expect(message.message.id).to.exist;
    });
  });

  context('banned slur', () => {
    beforeEach(() => {
      sandbox.spy(email, 'sendTxn');
      sandbox.stub(IncomingWebhook.prototype, 'send');
    });

    afterEach(() => {
      sandbox.restore();
    });

    it('errors and revokes privileges when chat message contains a banned slur', async () => {
      await expect(user.post(`/groups/${groupWithChat._id}/chat`, { message: testSlurMessage})).to.eventually.be.rejected.and.eql({
        code: 400,
        error: 'BadRequest',
        message: t('bannedSlurUsed'),
      });

      // Email sent to mods
      await sleep(0.5);
      expect(email.sendTxn).to.be.calledOnce;
      expect(email.sendTxn.args[0][1]).to.eql('slur-report-to-mods');

      // Slack message to mods
      expect(IncomingWebhook.prototype.send).to.be.calledOnce;
      /* eslint-disable camelcase */
      expect(IncomingWebhook.prototype.send).to.be.calledWith({
        text: `${user.profile.name} (${user.id}) tried to post a slur`,
        attachments: [{
          fallback: 'Slur Message',
          color: 'danger',
          author_name: `${user.profile.name} - ${user.auth.local.email} - ${user._id}`,
          title: 'Slur in Test Guild',
          title_link: `${BASE_URL}/groups/guild/${groupWithChat.id}`,
          text: testSlurMessage,
          // footer: sandbox.match(/<.*?groupId=group-id&chatId=chat-id\|Flag this message>/),
          mrkdwn_in: [
            'text',
          ],
        }],
      });
      /* eslint-enable camelcase */

      // Chat privileges are revoked
      await expect(user.post(`/groups/${groupWithChat._id}/chat`, { message: testMessage})).to.eventually.be.rejected.and.eql({
        code: 401,
        error: 'NotAuthorized',
        message: t('chatPrivilegesRevoked'),
      });

      // Restore chat privileges to continue testing
      user.flags.chatRevoked = false;
      await user.update({'flags.chatRevoked': false});
    });

    it('does not allow slurs in private groups', async () => {
      let { group, members } = await createAndPopulateGroup({
        groupDetails: {
          name: 'Party',
          type: 'party',
          privacy: 'private',
        },
        members: 1,
      });

      await expect(members[0].post(`/groups/${group._id}/chat`, { message: testSlurMessage})).to.eventually.be.rejected.and.eql({
        code: 400,
        error: 'BadRequest',
        message: t('bannedSlurUsed'),
      });

      // Email sent to mods
      await sleep(0.5);
      expect(email.sendTxn).to.be.calledThrice;
      expect(email.sendTxn.args[2][1]).to.eql('slur-report-to-mods');

      // Slack message to mods
      expect(IncomingWebhook.prototype.send).to.be.calledOnce;
      /* eslint-disable camelcase */
      expect(IncomingWebhook.prototype.send).to.be.calledWith({
        text: `${members[0].profile.name} (${members[0].id}) tried to post a slur`,
        attachments: [{
          fallback: 'Slur Message',
          color: 'danger',
          author_name: `${members[0].profile.name} - ${members[0].auth.local.email} - ${members[0]._id}`,
          title: 'Slur in Party - (private party)',
          title_link: undefined,
          text: testSlurMessage,
          // footer: sandbox.match(/<.*?groupId=group-id&chatId=chat-id\|Flag this message>/),
          mrkdwn_in: [
            'text',
          ],
        }],
      });
      /* eslint-enable camelcase */

      // Chat privileges are revoked
      await expect(members[0].post(`/groups/${groupWithChat._id}/chat`, { message: testMessage})).to.eventually.be.rejected.and.eql({
        code: 401,
        error: 'NotAuthorized',
        message: t('chatPrivilegesRevoked'),
      });

      // Restore chat privileges to continue testing
      members[0].flags.chatRevoked = false;
      await members[0].update({'flags.chatRevoked': false});
    });

    it('errors when slur is typed in mixed case', async () => {
      let substrLength = Math.floor(testSlurMessage1.length / 2);
      let chatMessage = testSlurMessage1.substring(0, substrLength).toLowerCase() + testSlurMessage1.substring(substrLength).toUpperCase();
      await expect(user.post('/groups/habitrpg/chat', { message: chatMessage }))
        .to.eventually.be.rejected.and.eql({
          code: 400,
          error: 'BadRequest',
          message: t('bannedSlurUsed'),
        });
    });
  });

  it('does not error when sending a message to a private guild with a user with revoked chat', async () => {
    let { group, members } = await createAndPopulateGroup({
      groupDetails: {
        name: 'Private Guild',
        type: 'guild',
        privacy: 'private',
      },
      members: 1,
    });

    let privateGuildMemberWithChatsRevoked = members[0];
    await privateGuildMemberWithChatsRevoked.update({'flags.chatRevoked': true});

    let message = await privateGuildMemberWithChatsRevoked.post(`/groups/${group._id}/chat`, { message: testMessage});

    expect(message.message.id).to.exist;
  });

  it('does not error when sending a message to a party with a user with revoked chat', async () => {
    let { group, members } = await createAndPopulateGroup({
      groupDetails: {
        name: 'Party',
        type: 'party',
        privacy: 'private',
      },
      members: 1,
    });

    let privatePartyMemberWithChatsRevoked = members[0];
    await privatePartyMemberWithChatsRevoked.update({'flags.chatRevoked': true});

    let message = await privatePartyMemberWithChatsRevoked.post(`/groups/${group._id}/chat`, { message: testMessage});

    expect(message.message.id).to.exist;
  });

  it('creates a chat', async () => {
    let message = await user.post(`/groups/${groupWithChat._id}/chat`, { message: testMessage});

    expect(message.message.id).to.exist;
  });

  it('creates a chat with user styles', async () => {
    const mount = 'test-mount';
    const pet = 'test-pet';
    const style = 'test-style';
    const userWithStyle = await generateUser({
      'items.currentMount': mount,
      'items.currentPet': pet,
      'preferences.style': style,
    });
    await userWithStyle.sync();

    const message = await userWithStyle.post(`/groups/${groupWithChat._id}/chat`, { message: testMessage});

    expect(message.message.id).to.exist;
    expect(message.message.userStyles.items.currentMount).to.eql(userWithStyle.items.currentMount);
    expect(message.message.userStyles.items.currentPet).to.eql(userWithStyle.items.currentPet);
    expect(message.message.userStyles.preferences.style).to.eql(userWithStyle.preferences.style);
    expect(message.message.userStyles.preferences.hair).to.eql(userWithStyle.preferences.hair);
    expect(message.message.userStyles.preferences.skin).to.eql(userWithStyle.preferences.skin);
    expect(message.message.userStyles.preferences.shirt).to.eql(userWithStyle.preferences.shirt);
    expect(message.message.userStyles.preferences.chair).to.eql(userWithStyle.preferences.chair);
    expect(message.message.userStyles.preferences.background).to.eql(userWithStyle.preferences.background);
  });

  it('adds backer info to chat', async () => {
    const backerInfo = {
      npc: 'Town Crier',
      tier: 800,
      tokensApplied: true,
    };
    const backer = await generateUser({
      backer: backerInfo,
    });

    const message = await backer.post(`/groups/${groupWithChat._id}/chat`, { message: testMessage});
    const messageBackerInfo = message.message.backer;

    expect(messageBackerInfo.npc).to.equal(backerInfo.npc);
    expect(messageBackerInfo.tier).to.equal(backerInfo.tier);
    expect(messageBackerInfo.tokensApplied).to.equal(backerInfo.tokensApplied);
  });

  it('sends group chat received webhooks', async () => {
    let userUuid = generateUUID();
    let memberUuid = generateUUID();
    await server.start();

    await user.post('/user/webhook', {
      url: `http://localhost:${server.port}/webhooks/${userUuid}`,
      type: 'groupChatReceived',
      enabled: true,
      options: {
        groupId: groupWithChat.id,
      },
    });
    await member.post('/user/webhook', {
      url: `http://localhost:${server.port}/webhooks/${memberUuid}`,
      type: 'groupChatReceived',
      enabled: true,
      options: {
        groupId: groupWithChat.id,
      },
    });

    let message = await user.post(`/groups/${groupWithChat._id}/chat`, { message: testMessage });

    await sleep();

    await server.close();

    let userBody = server.getWebhookData(userUuid);
    let memberBody = server.getWebhookData(memberUuid);

    [userBody, memberBody].forEach((body) => {
      expect(body.group.id).to.eql(groupWithChat._id);
      expect(body.group.name).to.eql(groupWithChat.name);
      expect(body.chat).to.eql(message.message);
    });
  });

  it('notifies other users of new messages for a guild', async () => {
    let message = await user.post(`/groups/${groupWithChat._id}/chat`, { message: testMessage});
    let memberWithNotification = await member.get('/user');

    expect(message.message.id).to.exist;
    expect(memberWithNotification.newMessages[`${groupWithChat._id}`]).to.exist;
    expect(memberWithNotification.notifications.find(n => {
      return n.type === 'NEW_CHAT_MESSAGE' && n.data.group.id === groupWithChat._id;
    })).to.exist;
  });

  it('notifies other users of new messages for a party', async () => {
    let { group, groupLeader, members } = await createAndPopulateGroup({
      groupDetails: {
        name: 'Test Party',
        type: 'party',
        privacy: 'private',
      },
      members: 1,
    });

    let message = await groupLeader.post(`/groups/${group._id}/chat`, { message: testMessage});
    let memberWithNotification = await members[0].get('/user');

    expect(message.message.id).to.exist;
    expect(memberWithNotification.newMessages[`${group._id}`]).to.exist;
    expect(memberWithNotification.notifications.find(n => {
      return n.type === 'NEW_CHAT_MESSAGE' && n.data.group.id === group._id;
    })).to.exist;
  });

  context('Spam prevention', () => {
    it('Returns an error when the user has been posting too many messages', async () => {
      // Post as many messages are needed to reach the spam limit
      for (let i = 0; i < SPAM_MESSAGE_LIMIT; i++) {
        let result = await additionalMember.post(`/groups/${TAVERN_ID}/chat`, { message: testMessage }); // eslint-disable-line no-await-in-loop
        expect(result.message.id).to.exist;
      }

      await expect(additionalMember.post(`/groups/${TAVERN_ID}/chat`, { message: testMessage })).to.eventually.be.rejected.and.eql({
        code: 401,
        error: 'NotAuthorized',
        message: t('messageGroupChatSpam'),
      });
    });

    it('contributor should not receive spam alert', async () => {
      let userSocialite = await member.update({'contributor.level': SPAM_MIN_EXEMPT_CONTRIB_LEVEL, 'flags.chatRevoked': false});

      // Post 1 more message than the spam limit to ensure they do not reach the limit
      for (let i = 0; i < SPAM_MESSAGE_LIMIT + 1; i++) {
        let result = await userSocialite.post(`/groups/${TAVERN_ID}/chat`, { message: testMessage }); // eslint-disable-line no-await-in-loop
        expect(result.message.id).to.exist;
      }
    });
  });
});