#
# Copyright 2020 Thomas Bastian, Jeffrey Goff, Albert Pang
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

'''
#
# Row/column table parser.
#
# Authors: Thomas Bastian
#
'''

'''
# Parameters
'''
'''
#
'''

import logging
import re
from .AbstractTableParser import AbstractTableParser
from .GenericJsonCsvTableParser import GenericJsonCsvTableParser
from .GenericRegexTableParser import GenericRegexTableParser
from .RowColumnTableParserAcxStd import RowColumnTableParserAcxStd
from .RowColumnTableParserAosDpStd import RowColumnTableParserAosDpStd
from .RowColumnTableParserAosSmart import RowColumnTableParserAosSmart
from .RowColumnTableParserAosStd import RowColumnTableParserAosStd


# Logger
log = logging.getLogger(__name__)


class RowColumnTableParser(AbstractTableParser):
    def __init__(self, source, marker=None, tableOptions=None):
        super().__init__()

        # Pre-process source
        if (tableOptions is not None) and 'begin' in tableOptions:
            tableBegin = tableOptions['begin']
            m_start = re.search(tableBegin, source)
            if m_start is not None:
                source = source[m_start.start():]
                log.debug("table.begin regex: [%s] matched at: [%s]" % (tableBegin, m_start.start()))
            else:
                log.debug("table.begin regex: [%s] did NOT match" % (tableBegin))
        if (tableOptions is not None) and 'end' in tableOptions:
            tableEnd = tableOptions['end']
            m_end = re.search(tableEnd, source)
            if m_end is not None:
                source = source[0:m_end.start()]
                log.debug("table.end regex: [%s] matched at: [%s]" % (tableEnd, m_end.start()))
            else:
                log.debug("table.end regex: [%s] did NOT match" % (tableEnd))
        if log.isEnabledFor(logging.DEBUG):
            # Log beginning and end of source
            b = min(10, len(source))
            e = min(10, len(source))
            log.debug("source.begin: [%s]" % (source[0:b]))
            log.debug("source.end: [%s]" % (source[len(source) - e:]))

        # Find delegate parser
        parserName = "aos-std"
        if tableOptions is not None:
            parserName = tableOptions['parser']
        if parserName == "aos-std":
            # Backwards compatibility, default to standard AOS tables
            self.parser = RowColumnTableParserAosStd(source, marker, tableOptions)

        elif parserName == "aos-dp-std":
            self.parser = RowColumnTableParserAosDpStd(source, marker, tableOptions)

        elif parserName == "aos-smart":
            self.parser = RowColumnTableParserAosSmart(source, tableOptions)

        elif parserName == "generic-regex":
            self.parser = GenericRegexTableParser(source, tableOptions)

        elif parserName == "generic-json-csv":
            self.parser = GenericJsonCsvTableParser(source, tableOptions)

        elif parserName == "acx-std":
            self.parser = RowColumnTableParserAcxStd(source, tableOptions)

        else:
            raise Exception("unknown table parser: " + parserName)

    def process(self):
        self.parser.process()

    def getTables(self):
        return self.parser.getTables()
