#!/usr/bin/env python

#  Copyright (c) 2006 John Gilman
#
#  This software is distributed under the MIT Open Source License.
#  <http://www.opensource.org/licenses/mit-license.html>
#
#  Permission is hereby granted, free of charge, to any person obtaining a
#  copy of this software and associated documentation files (the "Software"),
#  to deal in the Software without restriction, including without limitation
#  the rights to use, copy, modify, merge, publish, distribute, sublicense,
#  and/or sell copies of the Software, and to permit persons to whom the
#  Software is furnished to do so, subject to the following conditions:
#
#  The above copyright notice and this permission notice shall be included
#  in all copies or substantial portions of the Software.
#
#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
#  THE SOFTWARE.


import unittest

from weblogo.seq import (
    Seq,
    dna_alphabet,
    nucleic_alphabet,
    protein_alphabet,
    reduced_protein_alphabet,
)
from weblogo.transform import (
    GeneticCode,
    Transform,
    mask_low_complexity,
    reduced_protein_alphabets,
)


class test_mask_low_complexity(unittest.TestCase):
    def test_segging(self):
        before = (
            "mgnrafkshhghflsaegeavkthhghhdhhthfhvenhggkvalkthcgkylsigdhkqvylshhlhgdhslfhlehhg"
            "gkvsikghhhhyisadhhghvstkehhdhdttfeeiii".upper()
        )
        after = (
            "MGNRAFKSHHGHFLSAEGEAVxxxxxxxxxxxxxxxENHGGKVALKTHCGKYLSIGDHKQVYLSHHLHGDHSLFHLEHHGG"
            "KVSIKGHHHHYISADHHGHVSTKEHHDHDTTFEEIII".upper()
        )

        bseq = Seq(before, protein_alphabet)
        aseq = Seq(after, protein_alphabet)
        xseq = Seq("X" * len(bseq), protein_alphabet)

        sseq = mask_low_complexity(bseq)
        self.assertEqual(aseq, sseq)

        # Nothing should be segged
        sseq = mask_low_complexity(bseq, 12, 0, 0)
        self.assertEqual(bseq, sseq)

        # Everthing should be segged
        sseq = mask_low_complexity(bseq, 12, 4.3, 4.3)
        self.assertEqual(sseq, xseq)

        mask_low_complexity(bseq, 100000, 4.3, 4.3)

    def test_seg_invalid(self):
        seq = Seq("KTHCGKYLSIGDHKQVYLSHH", protein_alphabet)
        self.assertRaises(ValueError, mask_low_complexity, seq, 12, -1, 0)
        self.assertRaises(ValueError, mask_low_complexity, seq, -1, 0, 0)
        self.assertRaises(ValueError, mask_low_complexity, seq, 12, 1, 10)
        self.assertRaises(ValueError, mask_low_complexity, seq, 6, 12, 13)
        self.assertRaises(ValueError, mask_low_complexity, seq, 6, 2.0, 1.9)


class test_transform(unittest.TestCase):
    def test_transform(self):
        trans = Transform(
            Seq("ACGTURYSWKMBDHVN", nucleic_alphabet),
            Seq("ACGTTNNNNNNNNNNN", dna_alphabet),
        )
        s0 = Seq("AAAAAR", nucleic_alphabet)
        s1 = trans(s0)  # Callable ob
        self.assertEqual(s1.alphabet, dna_alphabet)
        self.assertEqual(s1, Seq("AAAAAN", dna_alphabet))

        s2 = Seq(protein_alphabet, protein_alphabet)
        self.assertRaises(ValueError, trans, s2)

    # def test_translations(self):

    #     s = Seq("ACGTURYSWKMBDHVNACGTURYSWKMBDHVN", nucleic_alphabet)
    #     s2 = dna_ext_to_std(s)
    #     s3 = Seq("ACGTTNNNNNNNNNNNACGTTNNNNNNNNNNN", dna_alphabet)
    #     self.assertEqual(s2, s3)

    def test_reduced_protein_alphabets(self):
        seq = Seq(
            "ENHGGKVALKTHCGKYLSIGDHKQVYLSHHLHGDHSLFHLEHHGGKVSIKGHHHHYISADHHGHVSTKEHHDHDT"
            "TFEEIII",
            reduced_protein_alphabet,
        )

        for t in reduced_protein_alphabets.values():
            t(seq)


class test_geneticcode(unittest.TestCase):
    def test_repr(self):
        for t in GeneticCode.std_list():
            r = repr(t)
            gc = eval(r)
            self.assertEqual(r, repr(gc))
            self.assertEqual(str(gc), str(t))
            # print r
            # print t
            # print gc

    def test_translate_std(self):
        dna = "GCCATTGTAATGGGCCGCTGAAAGGGTGCCCGA"
        t = GeneticCode.std()
        s = t.translate(dna)
        self.assertEqual(str(s), "AIVMGR*KGAR")

        for t in GeneticCode.std_list():
            t.translate(dna)

    def test_translate(self):
        # Ref: http://lists.open-bio.org/pipermail/biopython/2006-March/002960.html

        cft = (
            (
                "Vertebrate Mitochondrial",
                "GCCATTGTAATGGGCCGCTGAAAGGGTGCCCGA",
                "AIVMGRWKGAR",
            ),
            (11, "CAAGGCGTCGAAYAGCTTCAGGAACAGGAC", "QGVE?LQEQD"),
            (1, "GCCATTGTAATGGGCCGCTGAAAGGGTGCCCGA", "AIVMGR*KGAR"),
        )

        for code, dna, protein in cft:
            c = GeneticCode.by_name(code)
            trans = c.translate(dna)
            self.assertEqual(str(trans), protein)

        self.assertRaises(ValueError, GeneticCode.by_name, "not_a_name")

    def test_back_translate(self):
        prot = "ACDEFGHIKLMNPQRSTVWY*"
        t = GeneticCode.std()
        t.table["CGA"]
        s = t.back_translate(prot)
        self.assertEqual(prot, str(t.translate(s)))

        GeneticCode.std().back_table


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