class Search:
    class EqualityNodeBuilder(object):
        def __init__(self, name):
            self.name = name
 
        def __eq__(self, value):
            return self.is_equal(value)
 
        def is_equal(self, value):
            return Search.Node(self.name, {"is": value})
 
        def __ne__(self, value):
            return self.is_not_equal(value)
 
        def is_not_equal(self, value):
            return Search.Node(self.name, {"is_not": value})
 
    class KeyValueNodeBuilder(object):
        def __init__(self, name):
            self.name = name
 
        def __eq__(self, value):
            return self.is_equal(value)
 
        def is_equal(self, value):
            return Search.Node(self.name, value)
 
        def __ne__(self, value):
            return self.is_not_equal(value)
 
        def is_not_equal(self, value):
            return Search.Node(self.name, not value)
 
    class PartialMatchNodeBuilder(EqualityNodeBuilder):
        def starts_with(self, value):
            return Search.Node(self.name, {"starts_with": value})
 
        def ends_with(self, value):
            return Search.Node(self.name, {"ends_with": value})
 
    class TextNodeBuilder(PartialMatchNodeBuilder):
        def contains(self, value):
            return Search.Node(self.name, {"contains": value})
 
    class Node(object):
        def __init__(self, name, dict):
            self.name = name
            self.dict = dict
 
        def to_param(self):
            return self.dict
 
    class MultipleValueNodeBuilder(object):
        def __init__(self, name, whitelist = []):
            self.name = name
            self.whitelist = whitelist
 
        def in_list(self, list):
            invalid_args = set(list) - set(self.whitelist)
            if len(self.whitelist) > 0 and len(invalid_args) > 0:
                error_string = "Invalid argument(s) for %s: %s" % (self.name, ", ".join(invalid_args))
                raise AttributeError(error_string)
            return Search.Node(self.name, list)
 
        def __eq__(self, value):
            return self.in_list([value])
 
    class RangeNodeBuilder(object):
        def __init__(self, name):
            self.name = name
 
        def __ge__(self, min):
            return self.greater_than_or_equal_to(min)
 
        def greater_than_or_equal_to(self, min):
            return Search.Node(self.name, {"min": min})
 
        def __le__(self, max):
            return self.less_than_or_equal_to(max)
 
        def less_than_or_equal_to(self, max):
            return Search.Node(self.name, {"max": max})
 
        def between(self, min, max):
            return Search.Node(self.name, {"min": min, "max": max})