# ====================================================================
# Copyright (c) 2004-2005 Open Source Applications Foundation.
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# 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: 
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# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software. 
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#

from unittest import TestCase

from PyLucene import \
     WhitespaceAnalyzer, IndexSearcher, RAMDirectory, \
     Document, Field, IndexWriter

from lia.extsearch.queryparser.NumberUtils import NumberUtils
from lia.extsearch.queryparser.CustomQueryParser import CustomQueryParser


class AdvancedQueryParserTest(TestCase):

    def setUp(self):

        self.analyzer = WhitespaceAnalyzer()
        self.directory = RAMDirectory()

        writer = IndexWriter(self.directory, self.analyzer, True)

        for i in xrange(1, 501):
            doc = Document()
            doc.add(Field("id", NumberUtils.pad(i),
                          Field.Store.YES, Field.Index.UN_TOKENIZED))
            writer.addDocument(doc)

        writer.close()

    def testCustomQueryParser(self):

        parser = self.analyzer.queryParser(CustomQueryParser(), "field")

        try:
            parser.parse("a?t")
            self.fail("Wildcard queries should not be allowed")
        except:
            # expected
            self.assert_(True)

        try:
            parser.parse("xunit~")
            self.fail("Fuzzy queries should not be allowed")
        except:
            # expected
            self.assert_(True)

    def testCustomMultiFieldQueryParser(self):

        parser = self.analyzer.multiFieldQueryParser(CustomQueryParser(),
                                                     ["field"])

        try:
            parser.parse("a?t")
            self.fail("Wildcard queries should not be allowed")
        except:
            # expected
            self.assert_(True)

        try:
            parser.parse("xunit~")
            self.fail("Fuzzy queries should not be allowed")
        except:
            # expected
            self.assert_(True)

    def testIdRangeQuery(self):

        parser = self.analyzer.queryParser(CustomQueryParser(), "field")

        query = parser.parse("id:[37 TO 346]")
        self.assertEqual("id:[0000000037 TO 0000000346]",
                         query.toString("field"), "padded")

        searcher = IndexSearcher(self.directory)
        hits = searcher.search(query)
        self.assertEqual(310, len(hits))

        print parser.parse("special:[term TO *]")
        print parser.parse("special:[* TO term]")

    def testPhraseQuery(self):

        parser = self.analyzer.queryParser(CustomQueryParser(), "field")

        query = parser.parse("singleTerm")
        self.assert_(query.isTermQuery(), "TermQuery")

        query = parser.parse("\"a phrase\"")
        self.assert_(query.isSpanNearQuery(), "SpanNearQuery")