module STBIMAGE

# File lib/stbimage.rb, line 9
  def self.extern(signature, *opts)
    symname, ctype, argtype = parse_signature(signature, @type_alias)
    opt = parse_bind_options(opts)
    f = import_function(symname, ctype, argtype, opt[:call_type])
    name = symname.gsub(/@.+/,'')
    STBIMAGE_FUNCTIONS_MAP[name] = f
    begin
      /^(.+?):(\d+)/ =~ caller.first
      file, line = $1, $2.to_i
    rescue
      file, line = __FILE__, __LINE__+3
    end
    args_str="*args"
    module_eval(<<-EOS, file, line)
      def #{name}(*args, &block)
        STBIMAGE_FUNCTIONS_MAP['#{name}'].call(*args,&block)
      end
    EOS
    module_function(name)
    f
  end

# File lib/stbimage.rb, line 134
def self.import_symbols(output_error = false)
  typealias 'stbi_uc', 'unsigned char'
  typealias 'stbi_us', 'unsigned short'

  # function
  @@lib_signature.each do |sig|

    begin
      extern sig
    rescue
      $stderr.puts("[Warning] Failed to import #{sig}.") if output_error
    end

  end

      @@stbi_image_import_done = true
      
end

# File lib/stbimage.rb, line 35
def self.load_lib(lib = nil, path = nil, output_error = false)
  if lib == nil && path == nil

    if RUBY_PLATFORM =~ /64/

      # puts "You have a 64-bit Architecture ruby"
      if RUBY_PLATFORM =~ /mswin/ || RUBY_PLATFORM =~ /mingw/
        # puts "With Windows"
        lib, path = 'stbDLL_x64.dll', "#{__dir__}/dlls"
      elsif RUBY_PLATFORM =~ /linux/ || RUBY_PLATFORM =~ /cygwin/
        # puts "With Linux"
        lib, path = 'libstb_x64.so', "#{__dir__}/dlls"
      elsif RUBY_PLATFORM =~ /darwin/
        # puts "With macOS"
      else
        # puts "I have no idea what os are you using, so it's possible that stbimage wont't work"
      end
    
    elsif RUBY_PLATFORM =~ /arm/
    
      # puts "You have a arm architecture"
      lib, path = 'libstb_arm.so', "#{__dir__}/dlls"
    
    elsif RUBY_PLATFORM =~ /java/
    
      # puts "You have jruby!"
    
    else 
    
      # puts "You have a 32-bit Architecture ruby"
      if RUBY_PLATFORM =~ /mswin/ || RUBY_PLATFORM =~ /mingw/
        # puts "With Windows"
        lib, path = 'stbDLL_x86.dll', "#{__dir__}/dlls"
      elsif RUBY_PLATFORM =~ /linux/ || RUBY_PLATFORM =~ /cygwin/
        # puts "With Linux"
        lib, path = 'libstb_x86.so', "#{__dir__}/dlls"
      elsif RUBY_PLATFORM =~ /darwin/
        # puts "With macOS"
      else
        # puts "I have no idea what os are you using, so it's possible that stbimage wont't work"
      end
    
    end

  end

  if path
    dlload (path + '/' + lib)
  else
    dlload ("#{__dir__}/#{lib}")
  end
  import_symbols(output_error) unless @@stbi_image_import_done
end