movie file rename

require 'fileutils'

# [chinesename].englishname.garbage.ext => abc - [chinesename].ext
def rename1(path)
  files = Dir["#{path}/*"].each {|file|
    filename = file.split('/')[-1]
    next if filename !~ /^\[/
    if filename =~ /(\[.+\]\.?)(.*)(\.[a-z]+)/
      chinesename = $1
      ext = $3
      remain = $2
      chinesename.gsub!(".",'')
      remain.gsub!(/-.+-/,'')
      remain.gsub!(/.(DVD|YYeTs|owenshen|\d\d\d\d|jhlw).*$/,'')
      remain.gsub!('.', ' ')
      newfilename = remain + ' - ' + chinesename + ext
      newfilepath = File.join(path, newfilename)
      FileUtils.mv file, newfilepath
    end
  }  
end

def rename2(path)
  Dir["#{path}/*.rmvb"].each {|file|
    if file =~ /(.+)(\.(19|20)\d\d\.*)/
      name = $1 + ".rmvb"
      FileUtils.mv file, name
    end
  }    
end

def rename3(path)
  Dir["#{path}/*.rmvb"].each {|file|
    filename = file.split('/')[-1]
    next if (filename =~ /^[a-zA-Z0-9]/ || filename !~ /\.[^r]/)
    segs = filename.split('.')
    chinesename = segs.shift
    ext = segs.pop
    newfilename = segs.join(' ') + ' - ' + chinesename + ".#{ext}"
    newfilepath = File.join(path, newfilename)
    FileUtils.mv file, newfilepath
  }    
end