$LOAD_PATH.unshift(File.expand_path(File.dirname(__FILE__)))
require 'yaml'

module RBatch
  @@program_name = nil
  @@program_base = nil
  @@program_path = nil
  @@home_dir = nil
  @@run_conf_path = nil
  @@run_conf_fpath = nil
  @@run_conf = nil
  @@config = nil
  @@common_config = nil
  @@journal_verbose = 3
  @@journal_verbose_map = { :error => 1, :warn => 2, :info => 3, :debug => 4}
  @@journals = []
  @@logs = []
  module_function
  def program_name  ; @@program_name ; end
  def program_base  ; @@program_base ; end
  def program_path  ; @@program_path ; end
  def home_dir      ; @@home_dir ; end
  def run_conf_path ; @@run_conf_path ; end
  def run_conf      ; @@run_conf ; end
  def conf_dir      ; @@run_conf[:conf_dir].gsub("<home>",@@home_dir) ; end
  def log_dir       ; @@run_conf[:log_dir].gsub("<home>",@@home_dir) ; end
  def lib_dir       ; @@run_conf[:lib_dir].gsub("<home>",@@home_dir) ; end
  def config        ; @@config ; end
  def common_config ; @@common_config ; end
  def journals      ; @@journals ; end
  def add_log(log)
    @@logs << log
  end
  def journal(level,str)
    if @@journal_verbose_map[level] <= @@journal_verbose
      str = "[RBatch] " + str
      puts str
      @@journals << str
      @@logs.each do |log|
        if RBatch.run_conf[:mix_rbatch_msg_to_log]
          log.journal(str)
        end
      end
    end
  end
  def init
    @@journal_verbose = ENV["RB_VERBOSE"].to_i if ENV["RB_VERBOSE"]
    RBatch.journal :info,"=== START RBatch === (PID=#{$$.to_s})"
    @@program_name = $PROGRAM_NAME
    @@program_base = File.basename($PROGRAM_NAME)
    @@program_path = File.expand_path(@@program_name)
    if  ENV["RB_HOME"]
      @@home_dir = File.expand_path(ENV["RB_HOME"])
      RBatch.journal :debug,"RB_HOME : \"#{@@home_dir}\" (defined by $RB_HOME)"
    else
      @@home_dir =  File.expand_path(File.join(File.dirname(@@program_name) , ".."))
      RBatch.journal :debug,"RB_HOME : \"#{@@home_dir}\" (default)"
    end
    @@run_conf_path = File.join(@@home_dir,".rbatchrc")
    RBatch.journal :info,"Load Run-Conf: \"#{@@run_conf_path}\""
    @@run_conf = RunConf.new(@@run_conf_path,@@home_dir)
    RBatch.journal :debug,"RBatch option : #{@@run_conf.inspect}"
    @@common_config = RBatch::CommonConfig.new
    RBatch.journal :info,"Load Config  : \"#{@@common_config.path}\"" if @@common_config.exist?
    @@config = RBatch::Config.new
    RBatch.journal :info,"Load Config  : \"#{@@config.path}\"" if @@config.exist?
  end
  def reload_config
    begin
      @@config = RBatch::Config.new
      RBatch.journal :info, "Load Config  : \"#{@@config.path}\""
    rescue Errno::ENOENT => e
    end
  end
  def reload_common_config
    begin
      @@common_config = RBatch::CommonConfig.new
      RBatch.journal :info,"Load Config  : \"#{@@common_config.path}\""
    rescue Errno::ENOENT => e
    end
  end
end

# main
require 'rbatch/run_conf'
require 'rbatch/double_run_checker'
require 'rbatch/log'
require 'rbatch/config'
require 'rbatch/common_config'
require 'rbatch/cmd'

RBatch::init

if ( RBatch.run_conf[:forbid_double_run] )
  RBatch::DoubleRunChecker.check(File.basename(RBatch.program_name)) #raise error if check is NG
  RBatch::DoubleRunChecker.make_lock_file(File.basename(RBatch.program_name))
end



if RBatch.run_conf[:auto_lib_load] && Dir.exist?(RBatch.lib_dir)
  Dir::foreach(RBatch.lib_dir) do |file|
    if /.*rb/ =~ file
      require File.join(RBatch.lib_dir,File.basename(file,".rb"))
      RBatch.journal :info, "Load Library : \"#{File.join(RBatch.lib_dir,file)}\" "
    end
  end
end
RBatch.journal :info,"Start Script : \"#{RBatch.program_path}\""