const Utils = require('../../src/flux/models/utils');
const Message = require('../../src/flux/models/message').default;
const Contact = require('../../src/flux/models/contact').default;

const evan = new Contact({
  name: 'Evan Morikawa',
  email: 'evan@nylas.com',
});
const ben = new Contact({
  name: 'Ben Gotow',
  email: 'ben@nylas.com',
});
const team = new Contact({
  name: 'Nylas Team',
  email: 'team@nylas.com',
});
const edgehill = new Contact({
  name: 'Edgehill',
  email: 'edgehill@nylas.com',
});
const noEmail = new Contact({
  name: 'Edgehill',
  email: null,
});
const me = new Contact({
  name: TEST_ACCOUNT_NAME,
  email: TEST_ACCOUNT_EMAIL,
});
const almost_me = new Contact({
  name: TEST_ACCOUNT_NAME,
  email: 'tester+12345@nylas.com',
});

describe('Message', function() {
  describe('detecting empty bodies', function() {
    const cases = [
      {
        itMsg: "has plain br's and a signature",
        body: `\
<div class="contenteditable no-open-link-events" contenteditable="true" spellcheck="false"><br><br><signature>Sent from <a href="https://getmailspring.com/?ref=client">Mailspring</a>, the extensible, open source mail client.</signature></div>\
`,
        isEmpty: true,
      },
      {
        itMsg: 'is an empty string',
        body: '',
        isEmpty: true,
      },
      {
        itMsg: 'has plain text',
        body: 'Hi',
        isEmpty: false,
      },
      {
        itMsg: 'is null',
        body: null,
        isEmpty: true,
      },
      {
        itMsg: 'has empty tags',
        body: `\
<div class="contenteditable no-open-link-events" contenteditable="true" spellcheck="false"><br><div><p>  </p></div>\n\n\n\n<br><signature>Sent from <a href="https://getmailspring.com/?ref=client">Mailspring</a>, the extensible, open source mail client.</signature></div>\
`,
        isEmpty: true,
      },
      {
        itMsg: 'has nested characters',
        body: `\
<div class="contenteditable no-open-link-events" contenteditable="true" spellcheck="false"><br><div><p> 1</p></div>\n\n\n\n<br><signature>Sent from <a href="https://getmailspring.com/?ref=client">Mailspring</a>, the extensible, open source mail client.</signature></div>\
`,
        isEmpty: false,
      },
      {
        itMsg: 'has just a signature',
        body: '<signature>Yo</signature>',
        isEmpty: true,
      },
      {
        itMsg: 'has content after a signature',
        body: '<signature>Yo</signature>Yo',
        isEmpty: false,
      },
    ];
    cases.forEach(({ itMsg, body, isEmpty }) =>
      it(itMsg, function() {
        const msg = new Message({ body, pristine: false, draft: true });
        expect(msg.hasEmptyBody()).toBe(isEmpty);
      })
    );
  });

  it('correctly aggregates participants', function() {
    const m1 = new Message({
      to: [],
      cc: null,
      from: [],
    });
    expect(m1.participants().length).toBe(0);

    const m2 = new Message({
      to: [evan],
      cc: [],
      bcc: [],
      from: [ben],
    });
    expect(m2.participants().length).toBe(2);

    const m3 = new Message({
      to: [evan],
      cc: [evan],
      bcc: [evan],
      from: [evan],
    });
    expect(m3.participants().length).toBe(1);

    const m4 = new Message({
      to: [evan],
      cc: [ben, team, noEmail],
      bcc: [team],
      from: [team],
    });
    // because contact 4 has no email
    expect(m4.participants().length).toBe(3);

    const m5 = new Message({
      to: [evan],
      cc: [],
      bcc: [team],
      from: [ben],
    });
    // because we exclude bccs
    expect(m5.participants().length).toBe(2);
  });

  describe('participant replies', function() {
    const cases = [
      // Basic cases
      {
        msg: new Message({
          from: [evan],
          to: [me],
          cc: [],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [me],
          cc: [ben],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [ben],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [ben],
          cc: [me],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [ben],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [me],
          cc: [ben, team, evan],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [ben, team],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [me, ben, evan, ben, ben, evan],
          cc: [],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [ben],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [me, ben],
          cc: [team, edgehill],
          bcc: [evan, me, ben],
        }),
        expected: {
          to: [evan],
          cc: [ben, team, edgehill],
        },
      },

      // From me (replying to a message I just sent)
      {
        msg: new Message({
          from: [me],
          to: [me],
          cc: [],
          bcc: [],
        }),
        expected: {
          to: [me],
          cc: [],
        },
      },
      {
        msg: new Message({
          from: [me],
          to: [ben],
          cc: [],
          bcc: [],
        }),
        expected: {
          to: [ben],
          cc: [],
        },
      },
      {
        msg: new Message({
          from: [me],
          to: [ben, team, ben],
          cc: [edgehill],
          bcc: [],
        }),
        expected: {
          to: [ben, team],
          cc: [edgehill],
        },
      },
      {
        msg: new Message({
          from: [me],
          to: [ben, team, ben],
          cc: [edgehill],
          bcc: [],
        }),
        expected: {
          to: [ben, team],
          cc: [edgehill],
        },
      },
      // From me in cases my similar alias is used
      {
        msg: new Message({
          from: [me],
          to: [almost_me],
          cc: [ben],
          bcc: [],
        }),
        expected: {
          to: [almost_me],
          cc: [ben],
        },
      },
      {
        msg: new Message({
          from: [me],
          to: [me, almost_me, me],
          cc: [ben, almost_me, me, me, ben, ben],
          bcc: [],
        }),
        expected: {
          to: [me],
          cc: [ben],
        },
      },
      {
        msg: new Message({
          from: [almost_me],
          to: [me],
          cc: [ben],
          bcc: [],
        }),
        expected: {
          to: [me],
          cc: [ben],
        },
      },
      {
        msg: new Message({
          from: [almost_me],
          to: [almost_me],
          cc: [ben],
          bcc: [],
        }),
        expected: {
          to: [almost_me],
          cc: [ben],
        },
      },

      // Cases when I'm on email lists
      {
        msg: new Message({
          from: [evan],
          to: [team],
          cc: [],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [team],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [team],
          cc: [ben, edgehill],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [team, ben, edgehill],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [team],
          cc: [me],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [team],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [team, me],
          cc: [ben],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [team, ben],
        },
      },

      // Cases when I'm bcc'd
      {
        msg: new Message({
          from: [evan],
          to: [],
          cc: [],
          bcc: [me],
        }),
        expected: {
          to: [evan],
          cc: [],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [ben],
          cc: [],
          bcc: [me],
        }),
        expected: {
          to: [evan],
          cc: [ben],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [ben],
          cc: [team, edgehill],
          bcc: [me],
        }),
        expected: {
          to: [evan],
          cc: [ben, team, edgehill],
        },
      },

      // Cases my similar alias is used
      {
        msg: new Message({
          from: [evan],
          to: [almost_me],
          cc: [],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [ben],
          cc: [almost_me],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [ben],
        },
      },
      {
        msg: new Message({
          from: [evan],
          to: [ben],
          cc: [],
          bcc: [almost_me],
        }),
        expected: {
          to: [evan],
          cc: [ben],
        },
      },

      // Case when a replyTo is specified
      {
        msg: new Message({
          from: [evan],
          to: [ben, me],
          replyTo: [team],
          cc: [],
          bcc: [],
        }),
        expected: {
          to: [team],
          cc: [ben],
        },
      },

      // Case when a replyTo is specified and it's me. (replyTo will not be honored)
      {
        msg: new Message({
          from: [evan],
          to: [ben, team],
          replyTo: [me],
          cc: [],
          bcc: [],
        }),
        expected: {
          to: [evan],
          cc: [ben, team],
        },
      },
    ];

    const itString = (prefix, msg) =>
      `${prefix} from: ${msg.from.map(c => c.email).join(', ')} | to: ${msg.to
        .map(c => c.email)
        .join(', ')} | cc: ${msg.cc.map(c => c.email).join(', ')} | bcc: ${msg.bcc
        .map(c => c.email)
        .join(', ')} | replyTo: ${msg.replyTo.map(c => c.email).join(', ')}`;

    it('thinks me and almost_me are equivalent', function() {
      expect(Utils.emailIsEquivalent(me.email, almost_me.email)).toBe(true);
      expect(Utils.emailIsEquivalent(ben.email, me.email)).toBe(false);
    });

    cases.forEach(function({ msg, expected }) {
      it(itString('Reply All:', msg), () =>
        expect(msg.participantsForReplyAll()).toEqual(expected)
      );

      it(itString('Reply:', msg), function() {
        const { to, cc } = msg.participantsForReply();
        expect(to).toEqual(expected.to);
        expect(cc).toEqual([]);
      });
    });
  });
});