import doctest
import gzip
import os
import sys
import unittest

from rdkit import Chem, RDConfig, __version__, rdBase


class TestCase(unittest.TestCase):

  def testMultiSmiMolSupplier(self):
    fileN = os.path.join(RDConfig.RDBaseDir, 'Code', 'GraphMol', 'FileParsers', 'test_data',
                         'first_200.tpsa.csv')
    # fileN = "../FileParsers/test_data/first_200.tpsa.csv"
    smiSup = Chem.MultithreadedSmilesMolSupplier(fileN, ",", 0, -1)
    i = 0
    while not smiSup.atEnd():
      mol = next(smiSup)
      if (mol):
        i += 1
    self.assertTrue(i == 200)
    fileN = os.path.join(RDConfig.RDBaseDir, 'Code', 'GraphMol', 'FileParsers', 'test_data',
                         'fewSmi.csv')
    # fileN = "../FileParsers/test_data/fewSmi.csv"
    smiSup = Chem.MultithreadedSmilesMolSupplier(fileN, delimiter=",", smilesColumn=1, nameColumn=0,
                                                 titleLine=0)
    names = ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10"]
    props = [
      "34.14", "25.78", "106.51", "82.78", "60.16", "87.74", "37.38", "77.28", "65.18", "0.00"
    ]
    confusedNames = []
    confusedProps = []
    i = 0
    for mol in smiSup:
      if mol is not None:
        self.assertTrue(mol.HasProp("_Name"))
        self.assertTrue(mol.HasProp("Column_2"))
        prop = mol.GetProp("Column_2")
        name = mol.GetProp("_Name")
        confusedProps.append(prop)
        confusedNames.append(name)
        i += 1
    self.assertTrue(i == 10)
    self.assertTrue(sorted(confusedNames) == sorted(names))
    self.assertTrue(sorted(confusedProps) == sorted(props))

    # context manager
    confusedNames = []
    confusedProps = []
    i = 0
    with Chem.MultithreadedSmilesMolSupplier(fileN, delimiter=",", smilesColumn=1, nameColumn=0,
                                             titleLine=0) as smiSup:
      for mol in smiSup:
        if mol is not None:
          self.assertTrue(mol.HasProp("_Name"))
          self.assertTrue(mol.HasProp("Column_2"))
          prop = mol.GetProp("Column_2")
          name = mol.GetProp("_Name")
          confusedProps.append(prop)
          confusedNames.append(name)
          i += 1
      self.assertTrue(i == 10)
      self.assertTrue(sorted(confusedNames) == sorted(names))
      self.assertTrue(sorted(confusedProps) == sorted(props))

  def testMultiSDMolSupplier(self):
    fileN = os.path.join(RDConfig.RDBaseDir, 'Code', 'GraphMol', 'FileParsers', 'test_data',
                         'NCI_aids_few.sdf')
    # fileN = "../FileParsers/test_data/NCI_aids_few.sdf"
    sdSup = Chem.MultithreadedSDMolSupplier(fileN)
    molNames = [
      "48", "78", "128", "163", "164", "170", "180", "186", "192", "203", "210", "211", "213",
      "220", "229", "256"
    ]
    confusedMolNames = []
    i = 0
    for mol in sdSup:
      if mol is not None:
        confusedMolNames.append(mol.GetProp("_Name"))
        i += 1
    self.assertTrue(len(molNames) == i)
    self.assertTrue(sorted(confusedMolNames) == sorted(molNames))

    # context manager
    confusedMolNames = []
    i = 0
    with Chem.MultithreadedSDMolSupplier(fileN) as sdSup:
      for mol in sdSup:
        if mol is not None:
          confusedMolNames.append(mol.GetProp("_Name"))
          i += 1
    self.assertTrue(len(molNames) == i)
    self.assertTrue(sorted(confusedMolNames) == sorted(molNames))

  # NOTE these are disabled until we rewrite the code to construct a
  #      MultithreadedSDMolSupplier from a python stream
  @unittest.skip("Skipping construction from stream")
  def testMultiSDMolSupplierFromStream(self):
    fileN = os.path.join(RDConfig.RDBaseDir, 'Code', 'GraphMol', 'FileParsers', 'test_data',
                         'NCI_aids_few.sdf')
    molNames = [
      "48", "78", "128", "163", "164", "170", "180", "186", "192", "203", "210", "211", "213",
      "220", "229", "256"
    ]
    # try opening with streambuf
    inf = open(fileN, 'rb')
    if (inf):
      gSup = Chem.SDMolSupplierFromStream(inf)
      confusedMolNames = []
      i = 0
      for mol in gSup:
        # print("!!",i,file=sys.stderr);sys.stderr.flush()
        if (mol):
          confusedMolNames.append(mol.GetProp("_Name"))
          i += 1
      self.assertTrue(len(molNames) == i)
      self.assertTrue(sorted(confusedMolNames) == sorted(molNames))
    #   print("done!",file=sys.stderr);sys.stderr.flush()
    # try opening with streambuf
    fileN = os.path.join(RDConfig.RDBaseDir, 'Code', 'GraphMol', 'FileParsers', 'test_data',
                         'NCI_aids_few.sdf.gz')
    # try opening with gzip
    inf = gzip.open(fileN)
    if (inf):
      gSup = Chem.SDMolSupplierFromStream(inf)
      confusedMolNames = []
      i = 0
      for mol in gSup:
        # print("!",i,file=sys.stderr);sys.stderr.flush()
        if (mol):
          confusedMolNames.append(mol.GetProp("_Name"))
          i += 1
      self.assertTrue(len(molNames) == i)
      self.assertTrue(sorted(confusedMolNames) == sorted(molNames))

  def testMultiSmiMolSupplierThrow(self):
    fileN = os.path.join(RDConfig.RDBaseDir, 'Code', 'GraphMol', 'FileParsers', 'test_data',
                         'first_200.tpsa.csv')
    # fileN = "../FileParsers/test_data/first_200.tpsa.csv"
    smiSup = Chem.MultithreadedSmilesMolSupplier(fileN, ",", 0, -1)

    def helper(smiSup):
      i = 0
      while not smiSup.atEnd():
        mol = next(smiSup)
        if (mol):
          i += 1
        if i >= 10:
          raise ValueError('hi')

    self.assertRaises(ValueError, helper, smiSup)

  def testMultiSDMolSupplierThrow(self):
    fileN = os.path.join(RDConfig.RDBaseDir, 'Code', 'GraphMol', 'FileParsers', 'test_data',
                         'NCI_aids_few.sdf')
    # fileN = "../FileParsers/test_data/NCI_aids_few.sdf"
    sdSup = Chem.MultithreadedSDMolSupplier(fileN)

    def helper(sdSup):
      i = 0
      while not sdSup.atEnd():
        mol = next(sdSup)
        if (mol):
          i += 1
        if i >= 10:
          raise ValueError('hi')

    self.assertRaises(ValueError, helper, sdSup)


if __name__ == '__main__':
  unittest.main()