"""

This file contains parsing functions for a claim header, the functions are built within class (Object Orientation)
The intent to leverage Object Orientated designs is to easily support multi-processing

"""
import numpy as np
import json
# from . im common
from .common import X12DOCUMENT


class HEADER (X12DOCUMENT): 
    # @staticmethod
    def ISA(self,**_args):
        
        _columns = ['mode','version','date','time']
        _index = [15,12,9,10]
        return self.parse(_columns,_index,**_args)
    # @staticmethod
    def GS(self,**_args):
        """
        Expected Element GS
        """
        _columns  = ['type','sender','receiver','date','time','version']
        return self.parse(_columns,[1,2,3,4,5,8],**_args)
    # @staticmethod
    def ST(self,**_args):
        """
        Expected Element ST
        According to {x12} standard ST will take precedence over GS
        """
        _columns = ['type','control_number','version']
        return self.parse(_columns,[1,2,3],**_args)
    # @staticmethod
    def BHT (self,**_args):
        """
        Expected Element BHT
        This functiion will process header submitted (receiver,claim_type,)
        """
        _columns= ['app_id','date','time','type']
        return self.parse(_columns,[3,4,5,6],**_args)