require_relative 'common'

options = get_options(__FILE__)

config_path = options['config_path']
ini_path = options['generate_ini_path']
text_path = options['generate_text_path']
code_path = options['generate_code_path']
is_generate_field_info = options['source_text_language']
language = options['generate_field_info']

recreate_dir ini_path
recreate_dir text_path
recreate_dir code_path

require 'csv'

# 各类型定义
TypeInfo = Struct.new(:data_type, :data_type_extra, :ref_info, :default_value)
FieldInfo = Struct.new(:column_id, :identifier, :comment, :type_info)
Table = Struct.new(:csv, :fields, :name2id, :id_field)
Ini = Struct.new(:io, :tables)
inis = {}

# 读取配置表子目录，以形成配置数据目录
Dir["#{config_path}/*"].each do |path|
  ini_name = File::basename(path)
  ini = (inis[ini_name] ||= Ini.new(File.open("#{ini_path}/#{ini_name}.ini", 'wb'), {}))
  next unless File::directory?(path)
  # 每个配置表子目录将成为一个 ini 文件
  # 内含全部子 .csv 表格的导入数据
  Dir["#{path}/*.csv"].each do |file|
    table_name = File::basename(file, '.csv')
    table = (ini.tables[convert_case(table_name)] = Table.new(csv = CSV.open(file), [], {}, nil))
    identifiers = csv.readline
    comments = csv.readline
    type_infos = csv.readline
    field_id = nil
    field_id_name = nil
    # 处理表头列
    identifiers.each_with_index do |identifier, index|
      next if identifier.nil? || identifier.empty?
      type_info = TypeInfo.new(nil, nil, nil, nil)
      type_infos[index].gsub(/\s+/, '').scan(/[(:|,|@|=)][a-zA-Z_]+/).each do |info|
        type_info.data_type = info[1..info.size] if info.start_with?(':')
        type_info.data_type_extra = info[1..info.size] if info.start_with?(',')
        type_info.ref_info = info[1..info.size] if info.start_with?('@')
        type_info.default_value = info[1..info.size] if info.start_with?('=')
      end
      field = FieldInfo.new(index, identifier, comments[index], type_info)
      # 处理特殊类型的字段
      case type_info.data_type
      when 'id'
        field_id = field
        next
      when 'id_name'
        field_id_name = field
        next
      end
      # 参与导入的条目
      table.fields << field
    end
    # 验证 Id 列
    next if field_id.nil?
    table.id_field = field_id
    # 处理条目形成引用表
    while !csv.eof?
      line = csv.readline
      table.name2id[line[field_id_name.column_id]] = line[field_id.column_id].upcase
    end
    # 回滚 csv 状态至表头读取后
    csv.rewind
    3.times { csv.readline }
  end
end

# 导入实际数据条目
inis.each_pair do |ini_name, ini_data|
  register_table = {}
  buffer = StringIO.new
  ini_data.tables.each_pair do |table_name, table|
    register = (register_table[table_name] = [])
    while !table.csv.eof?
      line = table.csv.readline
      id = line[table.id_field.column_id].upcase
      buffer.puts "[#{id}]"
      table.fields.each do |field|
        value = line[field.column_id]
        next if value.nil? || value.empty?
        buffer.puts "#{field.identifier}=#{value}"
      end
      buffer.puts
      register << id
    end
  end
  File.open("#{ini_path}/#{ini_name}.ini", 'wb') do |ini|
    ini.puts '[REGISTER]'
    register_table.each_pair do |table_name, register|
      ini.puts "#{table_name}=#{register.join(',')}"
    end
    ini.puts
    ini.puts buffer.string
  end
end