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#
# This file is part of YouCompleteMe.
#
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#
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
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from ycm.tests.test_utils import MockVimModule
MockVimModule()

from hamcrest import assert_that, equal_to
from unittest import TestCase
from unittest.mock import patch, call

from ycm.client.messages_request import _HandlePollResponse
from ycm.tests.test_utils import ExtendedMock


class MessagesRequestTest( TestCase ):
  def test_HandlePollResponse_NoMessages( self ):
    assert_that( _HandlePollResponse( True, None ), equal_to( True ) )

    # Other non-False responses mean the same thing
    assert_that( _HandlePollResponse( '', None ), equal_to( True ) )
    assert_that( _HandlePollResponse( 1, None ), equal_to( True ) )
    assert_that( _HandlePollResponse( {}, None ), equal_to( True ) )


  def test_HandlePollResponse_PollingNotSupported( self ):
    assert_that( _HandlePollResponse( False, None ), equal_to( False ) )

    # 0 is not False
    assert_that( _HandlePollResponse( 0, None ), equal_to( True ) )


  @patch( 'ycm.client.messages_request.PostVimMessage',
          new_callable = ExtendedMock )
  def test_HandlePollResponse_SingleMessage( self, post_vim_message ):
    assert_that( _HandlePollResponse( [ { 'message': 'this is a message' } ] ,
                                      None ),
                 equal_to( True ) )

    post_vim_message.assert_has_exact_calls( [
      call( 'this is a message', warning=False, truncate=True )
    ] )


  @patch( 'ycm.client.messages_request.PostVimMessage',
          new_callable = ExtendedMock )
  def test_HandlePollResponse_MultipleMessages( self, post_vim_message ):
    assert_that( _HandlePollResponse( [ { 'message': 'this is a message' },
                                        { 'message': 'this is another one' } ] ,
                                      None ),
                 equal_to( True ) )

    post_vim_message.assert_has_exact_calls( [
      call( 'this is a message', warning=False, truncate=True ),
      call( 'this is another one', warning=False, truncate=True )
    ] )


  def test_HandlePollResponse_SingleDiagnostic( self ):
    diagnostics_handler = ExtendedMock()
    messages = [
      { 'filepath': 'foo', 'diagnostics': [ 'PLACEHOLDER' ] },
    ]
    assert_that( _HandlePollResponse( messages, diagnostics_handler ),
                 equal_to( True ) )
    diagnostics_handler.UpdateWithNewDiagnosticsForFile.assert_has_exact_calls(
      [
        call( 'foo', [ 'PLACEHOLDER' ] )
      ] )


  def test_HandlePollResponse_MultipleDiagnostics( self ):
    diagnostics_handler = ExtendedMock()
    messages = [
      { 'filepath': 'foo', 'diagnostics': [ 'PLACEHOLDER1' ] },
      { 'filepath': 'bar', 'diagnostics': [ 'PLACEHOLDER2' ] },
      { 'filepath': 'baz', 'diagnostics': [ 'PLACEHOLDER3' ] },
      { 'filepath': 'foo', 'diagnostics': [ 'PLACEHOLDER4' ] },
    ]
    assert_that( _HandlePollResponse( messages, diagnostics_handler ),
                 equal_to( True ) )
    diagnostics_handler.UpdateWithNewDiagnosticsForFile.assert_has_exact_calls(
      [
        call( 'foo', [ 'PLACEHOLDER1' ] ),
        call( 'bar', [ 'PLACEHOLDER2' ] ),
        call( 'baz', [ 'PLACEHOLDER3' ] ),
        call( 'foo', [ 'PLACEHOLDER4' ] )
      ] )


  @patch( 'ycm.client.messages_request.PostVimMessage',
          new_callable = ExtendedMock )
  def test_HandlePollResponse_MultipleMessagesAndDiagnostics(
      self, post_vim_message ):
    diagnostics_handler = ExtendedMock()
    messages = [
      { 'filepath': 'foo', 'diagnostics': [ 'PLACEHOLDER1' ] },
      { 'message': 'On the first day of Christmas, my VimScript gave to me' },
      { 'filepath': 'bar', 'diagnostics': [ 'PLACEHOLDER2' ] },
      { 'message': 'A test file in a Command-T' },
      { 'filepath': 'baz', 'diagnostics': [ 'PLACEHOLDER3' ] },
      { 'message': 'On the second day of Christmas, my VimScript gave to me' },
      { 'filepath': 'foo', 'diagnostics': [ 'PLACEHOLDER4' ] },
      { 'message': 'Two popup menus, and a test file in a Command-T' },
    ]
    assert_that( _HandlePollResponse( messages, diagnostics_handler ),
                 equal_to( True ) )
    diagnostics_handler.UpdateWithNewDiagnosticsForFile.assert_has_exact_calls(
      [
        call( 'foo', [ 'PLACEHOLDER1' ] ),
        call( 'bar', [ 'PLACEHOLDER2' ] ),
        call( 'baz', [ 'PLACEHOLDER3' ] ),
        call( 'foo', [ 'PLACEHOLDER4' ] )
      ] )

    post_vim_message.assert_has_exact_calls( [
      call( 'On the first day of Christmas, my VimScript gave to me',
            warning=False,
            truncate=True ),
      call( 'A test file in a Command-T', warning=False, truncate=True ),
      call( 'On the second day of Christmas, my VimScript gave to me',
            warning=False,
            truncate=True ),
      call( 'Two popup menus, and a test file in a Command-T',
            warning=False,
            truncate=True ),
    ] )