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']
language = options['source_text_language']
is_generate_field_info = 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, :raw_name)
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, table_name))
    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 = convert_case(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
      next if field_id_name.nil?
      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

# 所有表格缓存
tables = inis.values.collect{|ini| ini.tables}.inject(:merge)

# 导入实际数据条目
inis.each_pair do |ini_name, ini_data|
  register_table = {}
  enum_table = {}
  buffer = StringIO.new
  # 逐目录生成 ini
  ini_data.tables.each_pair do |table_name, table|
    register = (register_table[table_name] = [])
    texts = {}
    count = 0
    # 逐行扫描
    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?
        # 引用名替换处理
        if field.type_info.ref_info
          ref_table = tables[field.type_info.ref_info]
          value = value.split(',').collect do |ref_name|
            ref_table.name2id[ref_name] || ref_name.upcase
          end.join(',')
        # 数据类型处理
        else
          case field.type_info.data_type
          # 文本内容
          when 'text'
            index = 0
            value = value.split(',').collect do |text|
              key = "C:#{table_name.upcase}:#{field.column_id}:#{count}"
              key = "#{key}:#{index}" if index > 0
              texts[key] = text
              index += 1
              key
            end.join(',')
          # 枚举内容
          when 'enum'
            case field.type_info.data_type_extra
            # 自动型枚举
            when 'auto'
              enum_key = "#{table_name}#{field.identifier}"
              value.split(',').each do |v|
                enums = (enum_table[enum_key] ||= {})
                enums[v] = enums.size
              end
            end
          end
        end
        buffer.puts "#{field.identifier}=#{value}"
        count += 1
      end
      buffer.puts
      register << id
    end
    # 导出语言表
    if !texts.empty?
      csf = CSV.open("#{text_path}/#{table.raw_name}.csv", 'wb')
      csf << ['', language]
      texts.keys.sort.each do |k|
        csf << [k, texts[k]]
      end
    end
  end
  # 导出 ini
  File.open("#{ini_path}/#{ini_name}.ini", 'wb') do |ini|
    # 导出注册表
    if !register_table.empty?
      ini.puts '[REGISTER]'
      register_table.each_pair do |table_name, register|
        ini.puts "#{table_name}=#{register.join(',')}"
      end
      ini.puts
    end
    # 导出枚举
    if !enum_table.empty?
      ini.puts '[ENUM]'
      enum_table.keys.sort.each do |enum_name|
        ini.puts "#{enum_name}=#{enum_table[enum_name].keys.join(',')}"
      end
      ini.puts
    end
    # 导出所有条目
    ini.puts buffer.string
  end
end