/*----------------------------------------------------------------------------*/
/* ProcessImageryExtractRegionFromMrSID                                       */
/*----------------------------------------------------------------------------*/

// Macro declaration and variables for property sheet.

macro ProcessImageryExtractRegionFromMrSID(	string output_file_path,
										               string batch_file_name,
										               string sid_application_name,
										               string input_sid_file,
										               string high_output_prefix,
										               string low_output_prefix,
										               string output_file_identifier,
										               int width_of_sid_file,
										               int height_of_sid_file,
										               int start_upper_left_x,
										               int start_upper_left_y,
										               int output_tile_width_x,
										               int output_tile_height_y,
										               int output_cols,
										               int output_rows,
										               string gdal_application_name,
										               int gdal_output_tile_width,
										               int gdal_output_tile_height )

// Command header, category, GUID, and image.
						
[ Category="Application Commands", Guid="{C2B9DB5F-9D84-48B0-BEE2-2E24B35885A2}", Image=".\\icons\\generic_script_icon.bmp"]

// Main loop

{ 

	////////////////////////////////////////////////////////////////////////////////
	// MRSIDGEODECODE_WIN.EXE Application Variables

	// string output_file_path;							/* Path where output files are written.		*/
	// string batch_file_name;								/* Name of batch file written to disk.		   */	
	// string sid_application_name;						/* Name of command line executable to run.	*/
	   string flag_i					= "-i ";			   /* Input file flag. Leave alone.			      */
	   string flag_o					= "-o ";			   /* Output file flag. Leave alone.			   */
	   string flag_ulxy					= " -ulxy ";	/* Upper left corner flag. Leave alone.		*/
	   string flag_f					= "-of tifg ";		/* Output file format. Leave alone.			   */
	   string flag_wh					= " -wh ";			/* Width/Height flag. Leave alone.			   */
	// string input_sid_file;								/* Actual MrSID image file name.			      */
	// string high_output_name;							/* Modifier for high-resolution file name.	*/
	// string output_file_identifier;					/* Modifier for file name.					      */
	   string output_file_extension		= ".tif";	/* Output file extension. Leave alone.		   */
	   string output_scale				= " -s 4";		/* Can be 0, 2 or 4. Leave alone.			   */

	////////////////////////////////////////////////////////////////////////////////	
	// Input Variables That Control Resizing Start/End

	// int width_of_sid_file;			/* Width of MrSid image in pixels.				   */
	// int height_of_sid_file;			/* Height of MrSid image in pixels.				   */	
	// int start_upper_left_x;			/* Upper left corner X position in pixels.		*/
	// int start_upper_left_y;			/* Upper left corner Y position in pixels.		*/
	// int output_tile_width_x;		/* Width of each tile in pixels along x.		   */
	// int output_tile_height_y;		/* Height of each tile in pixels along x.		   */
	// int output_cols;					/* Number of output columns.					      */
	// int output_rows;					/* Number of output rows.						      */
	// int gdal_output_tile_width;	/* Resolution along x of low resolution tiles.	*/
	// int gdal_output_tile_height;	/* Resolution along y of low resolution tiles.	*/
	
	////////////////////////////////////////////////////////////////////////////////
	// GDAL_TRANSLATE.EXE Application Variables
	
	// string gdal_application_name;						      /* Name of command line executable to run.									      */
	   string gdal_output_format		= "-of GTiff ";		/* Name of output format using GDAL command line terminology. Leave alone.	*/
	   string gdal_scalar_flag			= "-outsize ";		   /* Name of GDAL scaling flag to use. Leave alone.							      */	
	// string low_output_name;								      /* Modifier for low-resolution file name.									         */

	////////////////////////////////////////////////////////////////////////////////	
	// Initialize a few variables correctly for offsets. Sort of a hack but keeps this loop very simple. :-) Leave this alone!
	
	start_upper_left_x = start_upper_left_x - output_tile_width_x;
	start_upper_left_y = start_upper_left_y - output_tile_height_y;
	output_cols = output_cols + 1;
	output_rows = output_rows + 1;

	////////////////////////////////////////////////////////////////////////////////	
	// Inner/Outer Loop
	
	// Validate property editor inputs. If missing, warn and return to property editor.

   if ( output_file_path == "" )			   { Application.MessageBox( 0, "You did not specify an output file path!", "Warning" ); return; }
   if ( sid_application_name == "" )		{ Application.MessageBox( 0, "You did not specify a name for the batch file!", "Warning" ); return; }
   if ( sid_application_name == "" )		{ Application.MessageBox( 0, "You did not specify a MrSID executable!", "Warning" ); return; }
   if ( input_sid_file == "" )				{ Application.MessageBox( 0, "You did not specify a MrSID file!", "Warning" ); return; }
   if ( width_of_sid_file == 0 )			   { Application.MessageBox( 0, "You did not specify the width of the MrSID file!", "Warning" ); return; }
   if ( height_of_sid_file == 0 )			{ Application.MessageBox( 0, "You did not specify the height of the MrSID file!", "Warning" ); return; }
   if ( output_tile_width_x == 0 )			{ Application.MessageBox( 0, "You did not specify the Output Tile Width!", "Warning" ); return; }
   if ( output_tile_height_y == 0 )			{ Application.MessageBox( 0, "You did not specify the Output Tile Height!", "Warning" ); return; }
   if ( output_cols == 0 )			         { Application.MessageBox( 0, "You did not specify the number of columns!", "Warning" ); return; }
   if ( output_rows == 0 )			         { Application.MessageBox( 0, "You did not specify the number of rows!", "Warning" ); return; }
   if ( gdal_application_name == "" )		{ Application.MessageBox( 0, "You did not specify a GDAL executable!", "Warning" ); return; }
   if ( gdal_output_tile_width == 0 )		{ Application.MessageBox( 0, "You did not specify the GDAL Output Tile Width!", "Warning" ); return; }
   if ( gdal_output_tile_height == 0 )		{ Application.MessageBox( 0, "You did not specify the GDAL Output Tile Height!", "Warning" ); return; }

   int validate_subdivision_coordinates_x = ( start_upper_left_x + ( output_cols * output_tile_width_x ) );
   int validate_subdivision_coordinates_y = ( start_upper_left_y + ( output_rows * output_tile_height_y ) );
  
   if ( validate_subdivision_coordinates_x > width_of_sid_file  || validate_subdivision_coordinates_x < 0 )	{ Application.MessageBox( 0, "Your subdivision parameters are outside the boundary of the MrSID file!", "Warning" ); return; }
   if ( validate_subdivision_coordinates_y > height_of_sid_file || validate_subdivision_coordinates_y < 0 )	{ Application.MessageBox( 0, "Your subdivision parameters are outside the boundary of the MrSID file!", "Warning" ); return; }
   
   string dir_output_file = output_file_path + "dir_temp.txt";
   string dir_command = "cmd /c \"dir " + output_file_path + "\*.sid /B > " + dir_output_file + "\"";
   Application.RunProgram( dir_command,  "Generating File List...", 1, 1 ); 	
   
   TextFile imagery_list_file = new TextFile;
   if ( !imagery_list_file.Open( dir_output_file, true ) )
   {
      Application.MessageBox( 0, "Imagery list file could not be opened.", "Warning" );
      return;
   }
   
   string batch_file_full_path = output_file_path + "\\" + batch_file_name;
   
   TextFile batch_file = new TextFile;
   if ( ! batch_file.Open ( batch_file_full_path, false ) )
	{
		Application.MessageBox( 0, "Batch file could not be written!", "Warning" );
		return;
	}

   int imagery_file_count = 0;
   while( 1 )
   {
      if( imagery_list_file.IsEndOfFile() )
      {
         break;
      }
      
      string imagery_file_name = imagery_list_file.ReadLine();
      
      //output_file_identifier
      
      ++imagery_file_count;
      string cur_output_file_delimiter = output_file_identifier + imagery_file_count;
      
	   for ( int cols = 1; cols < output_cols; ++cols )
		{
			for ( int rows = 1; rows < output_rows; ++rows )
			{	// Create the string that creates the image tile by using MRSIDGEODECODE_WIN.EXE and GDAL_TRANSLATE.EXE. Move the files as well.
				string sid_command_line =	output_file_path +
											      sid_application_name + " " +
											      flag_i +  
											      output_file_path +
											      imagery_file_name + " " +
											      flag_f +											
											      flag_o + 
											      output_file_path +
											      high_output_prefix + "_" +
											      cur_output_file_delimiter + "_" +
											      cols + "x" + rows + 
											      output_file_extension +
											      flag_ulxy + ( start_upper_left_x + output_tile_width_x * cols ) + " " + ( start_upper_left_y + output_tile_height_y * rows ) +
											      flag_wh + output_tile_width_x + " " + output_tile_height_y +
											      "\n" +
											      output_file_path +
											      gdal_application_name + " " +
											      gdal_output_format + 
											      gdal_scalar_flag +
											      gdal_output_tile_width + " " +
											      gdal_output_tile_height + " " +
											      output_file_path + 
											      high_output_prefix + "_" +
											      cur_output_file_delimiter + "_" +
											      cols + "x" + rows +
											      output_file_extension + " " +
											      output_file_path + 
											      low_output_prefix + "_" +
											      cur_output_file_delimiter + "_" +
											      cols + "x" + rows +
											      output_file_extension +
											      "\n" +
											      "move " + output_file_path + "h*.tif \"C:\\Scenomics\\Exercises\\lewis_county\\high_resolution_processed_imagery\"" +
											      "\n" +
											      "move " + output_file_path + "l*.tif \"C:\\Scenomics\\Exercises\\lewis_county\\low_resolution_processed_imagery\"" +
											      "\n";										

				batch_file.Write( sid_command_line );
				
			}
		}
   }
	delete batch_file;
	Application.RunProgram ( batch_file_full_path, "Image: SID subdivision underway...", 1, 0 );
}