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# frozen_string_literal: true
module Some
class Messages
AND_CONJUCTION = :and
OR_CONJUCTION = :or
DEFAULT_CONJUCTION = AND_CONJUCTION
Token = Struct.new(:id, :conjuction, :field, :value) do
def to_query
conjuction_to_use = id > 1 ? conjuction : ''
return unless field == :direct
"#{conjuction_to_use} (#{value})"
end
end
attr_accessor :query, :current_conjuction, :token_count
def initialize
@query = []
@current_conjuction = AND_CONJUCTION
@token_count = 0
end
def or
@current_conjuction = OR_CONJUCTION
self
end
def and
@current_conjuction = AND_CONJUCTION
self
end
def filter(params)
case params
when String
add_filter_from_string(params)
end
# query << params.map do |key, value|
# unless value.is_a? Array
# [current_conjuction, key, value.to_sym]
# else
#
# [current_conjuction,
# value.map { |subarg| [OR_CONJUCTION, key, subarg] }]
# end
# end
#
self
end
def add_filter_from_string(string)
@query << Token.new(next_token_id, current_conjuction, :direct, string)
end
def query_string
query.map(&:to_query).join(' ')
end
def next_token_id
@token_count += 1
end
end
end
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