"""
This package contains tools used across the various modules, these tools actually "do the work"
We intend to have these tools be Object-Oriented by design so as to not run into any concurrency issues
"""
from . import file, document, common
from healthcareio import x12
from multiprocessing import Process
# class X12Engine(Process):
#     def __init__(self,**_args):
#         """
#         :files   group of files to be processed
#         """
#         self.files = _args['files']
#         self._cHandler = file.Content()
#         self._dHandler = document.Builder(plugins=_args['plugins'],parents=_args['plugins'])
#     def run(self):
#         """
#         This function performs parsing given
#         """
#         for _location in self.files :
#             _content = self._cHandler.read(_location)
#             _content = self._cHandler.split(_content)
            
#     pass
def merge (_x,_y):
    """
    This function will merge two objects _x, _y
    """
    _zcols = list(set(_x.keys()) & set(_y.keys())) #--common columns
    
    if _zcols :
        _out = dict(_x,**{})
        for _key in list(_y.keys()) :
            
                
            if _key not in _zcols and _key:
                _out[_key] = _y[_key] 
            else:
                if type(_out[_key]) == list :
                    for value in _y[_key] :
                        if value not in _out[_key] :
                            _out[_key].append(value)
                    # _out[_key] += _y[_key]
                elif type(_out[_key]) == dict:
                    _out[_key] = dict(_out[_key],**_y[_key])
                else:
                    _out[_key] = _y[_key]
        
        return _out 
    else:
        
        return dict(_x,**_y)
def template(**_args) :
    """
    This function generates an object template to be used in object assignment and export functionalities
    We chose to proceed in this manner so as to enforce consistency of the parser
    :plugins    {*,837,835} with element and pointers associated
    """
    _plugins = _args['plugins'] 
    _object = {'837':{},'835':{}}
    for _x12 in _plugins :
        _pointers = _plugins[_x12]
        for _element in _pointers :
            _meta = _pointers[_element].meta
            _values = _meta['map'].values() if 'map' in _meta else _meta['columns']
            #
            # where do the attributes go ..
            #
            _attr = []
            for _item in list(_values) :
                if type(_item) == list :
                    _attr = _attr + _item
                else:
                    _attr.append(_item)
            _field = []
            if 'field' in _meta or 'container' in _meta :
                _field = _meta['field'] if 'field' in _meta else _meta['container']
                
            if 'anchor' in _meta : #-- No parents are expected
                _field = _meta['anchor'].values()
                
            elif _meta['parent'] :
                #
                # It means the attributes will be 
                _parentPlug = x12.plugins.filter(elements=[_meta['parent']],plugins=_plugins)
                _pid = list(_parentPlug.keys())[0]
                _parentMeta = _parentPlug[_pid][_meta['parent']].meta
                
                _attr =  _attr + list(_parentMeta['map'].values()) if 'map' in _parentMeta else _parentMeta['columns']
                if 'anchor' in _parentMeta :
                    _field = list(_parentMeta['anchor'].values())
            _field = [_field] if type(_field) == str else _field
            _attr = dict.fromkeys(_attr,'')
            if not _field :
                _info = (_attr)
            else:
                _info =  (dict.fromkeys(_field,_attr))            
            if _x12 == '*' :
                
                _object['837']= merge(_object['837'], _info)
                _object['835']= merge (_object['835'], _info)
            else:
                _object[_x12] = merge(_object[_x12],_info)
    return _object
# def template(**_args) :
#     """
#     This function generates an object template to be used in object assignment and export functionalities
#     We chose to proceed in this manner so as to enforce consistency of the parser
#     :plugins    {*,837,835} with element and pointers associated
#     """
#     _plugins = _args['plugins'] 
#     _object = {'837':{},'835':{}}
#     for _x12 in _plugins :
#         _pointers = _plugins[_x12]
#         for _element in _pointers :
#             _meta = _pointers[_element].meta
#             _values = _meta['map'].values() if 'map' in _meta else _meta['columns']
#             #
#             # where do the attributes go ..
#             #
#             _attr = []
#             for _item in list(_values) :
#                 if type(_item) == list :
#                     _attr = _attr + _item
#                 else:
#                     _attr.append(_item)
#             _field = []
#             if 'field' in _meta or 'container' in _meta :
#                 _field = _meta['field'] if 'field' in _meta else _meta['container']
                
#             if 'anchor' in _meta : #-- No parents are expected
#                 _field = _meta['anchor'].values()
                
#             elif _meta['parent'] :
#                 #
#                 # It means the attributes will be 
#                 _parentPlug = filter(elements=[_meta['parent']],plugins=_plugins)
#                 _pid = list(_parentPlug.keys())[0]
#                 _parentMeta = _parentPlug[_pid][_meta['parent']].meta
                
#                 _attr =  _attr + list(_parentMeta['map'].values()) if 'map' in _parentMeta else _parentMeta['columns']
#                 if 'anchor' in _parentMeta :
#                     _field = list(_parentMeta['anchor'].values())
#             _field = [_field] if type(_field) == str else _field
#             _attr = dict.fromkeys(_attr,'')
#             if not _field :
#                 _info = (_attr)
#             else:
#                 _info =  (dict.fromkeys(_field,_attr))            
#             if _x12 == '*' :
                
#                 _object['837']= merge(_object['837'], _info)
#                 _object['835']= merge (_object['835'], _info)
#             else:
#                 _object[_x12] = merge(_object[_x12],_info)
#     return _object