"""Collection of regular expressions to catch spectrum XML-tags."""
import re

SPECTRUM_INDEX_PATTERN = re.compile(
    b'(?P<type>(scan=|nativeID="))(?P<nativeID>[0-9]*)">"'
    b'(?P<offset>[0-9]*)</offset>'
)
'''
Regex pattern for spectrum index
works for obo format 1.1.0 until <last version checked>

Catches:
    #. demo 1
    #. demo 2
'''


SIM_INDEX_PATTERN = re.compile(
    b'(?P<type>idRef=")(?P<nativeID>.*)">(?P<offset>[0-9]*)</offset>'
)
'''
Regex pattern for SIM index
'''


SPECTRUM_ID_PATTERN = re.compile(
    r'[0-9]*$'
)
'''
Simplified spectrum id regex. Greedly catches ints at the end of line
'''

FILE_ENCODING_PATTERN = re.compile(
    b'encoding="(?P<encoding>[A-Za-z0-9-]*)"'
)
'''
Regex to catch xml file encoding
'''

MOBY_DICK_CHAPTER_PATTERN = re.compile(
    r'CHAPTER ([0-9]+).*'
)
'''
Regex to catch moby dick chapter number used in the index gezip writer example.
'''

SPECTRUM_OPEN_PATTERN = re.compile(
    b"<*spectrum[^>]*index=\"(?P<index>[0-9]+)\" id=\"(?P<id>[^\"]+)\" defaultArrayLength=\"[0-9]+\">"
)
'''
Regex to catch specturm open xml tag with encoded array length
'''

SPECTRUM_CLOSE_PATTERN = re.compile(
    b'</spectrum>'
)
'''Regex to catch spectrum xml close tags'''

SPECTRUM_TAG_PATTERN = re.compile(
    r'<spectrum.*?id="(?P<index>[^"]+)".*?>'
)
'''Regex to catch spectrum tag pattern'''

CHROMATOGRAM_ID_PATTERN = re.compile(
    r'<chromatogram.*id="(.*?)".*?>'
)
'''Regex to catch chromatogram id patterns'''

CHROMATOGRAM_PATTERN = re.compile(
    r'<chromatogram.*id="(.*?)".*?>'
)
'''Regex to catch chromatogram id pattern (again ?)'''

CHROMATOGRAM_AND_SPECTRUM_PATTERN_WITH_ID = re.compile(
    r'<\s*(chromatogram|spectrum)\s*(id=(\".*?\")|index=\".*?\")\s(id=(\".*?\"))*\s*.*\sdefaultArrayLength=\"[0-9]+\">'
)
'''Regex to catch combined chromatogram and spectrum patterns'''
