class Midos::Writer::Thesaurus

# File lib/midos/writer.rb, line 182
def initialize(options = {}, prologue = {}, epilogue = {}, &block)
  super(options, &block)

  prologue[self.class::NAME] ||= options[:name]

  @prologue = self.class::PROLOGUE.merge(prologue)
  @epilogue = self.class::EPILOGUE.merge(epilogue)
end

# File lib/midos/writer.rb, line 176
def open(*args, &block)
  super { |mth| mth.instruct!(&block) }
end

# File lib/midos/writer.rb, line 171
def write(*args, &block)
  new(args.extract_options!, &block)
    .instruct! { |mth| mth.write(*args) }
end

# File lib/midos/writer.rb, line 193
def instruct!(*args)
  put(prologue, *args)
  yield self
  put(epilogue, *args)
end

# File lib/midos/writer.rb, line 201
def merge_records(hash, records, *args)
  args = [hash, records, *resolve_from_to(*args)]

  records.each { |id, record|
    new_record = hash[id] = {}

    record.each { |key, value|
      new_record[key] = resolve(key, value, *args) }
  }
end

# File lib/midos/writer.rb, line 219
def resolve(key, value, hash, records, from = nil, to = nil)
  from && from.include?(key) ? value.map { |id| records[id][to] } : value
end

# File lib/midos/writer.rb, line 212
def resolve_from_to(from = nil, to = prologue[RESOLVE_TO])
  from = prologue.values_at(*RESOLVE_FROM)
    .map { |v| v.split('~').first } if from.nil? || from == true

  [from, to]
end