/**

Notices:

Copyright 2016 United States Government as represented by the
Administrator of the National Aeronautics and Space Administration. No
copyright is claimed in the United States under Title 17,
U.S. Code. All Other Rights Reserved.

Disclaimers

No Warranty: THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY
WARRANTY OF ANY KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY,
INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE
WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR FREEDOM FROM
INFRINGEMENT, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL BE ERROR
FREE, OR ANY WARRANTY THAT DOCUMENTATION, IF PROVIDED, WILL CONFORM TO
THE SUBJECT SOFTWARE. THIS AGREEMENT DOES NOT, IN ANY MANNER,
CONSTITUTE AN ENDORSEMENT BY GOVERNMENT AGENCY OR ANY PRIOR RECIPIENT
OF ANY RESULTS, RESULTING DESIGNS, HARDWARE, SOFTWARE PRODUCTS OR ANY
OTHER APPLICATIONS RESULTING FROM USE OF THE SUBJECT SOFTWARE.
FURTHER, GOVERNMENT AGENCY DISCLAIMS ALL WARRANTIES AND LIABILITIES
REGARDING THIRD-PARTY SOFTWARE, IF PRESENT IN THE ORIGINAL SOFTWARE,
AND DISTRIBUTES IT "AS IS."

Waiver and Indemnity: RECIPIENT AGREES TO WAIVE ANY AND ALL CLAIMS
AGAINST THE UNITED STATES GOVERNMENT, ITS CONTRACTORS AND
SUBCONTRACTORS, AS WELL AS ANY PRIOR RECIPIENT.  IF RECIPIENT'S USE OF
THE SUBJECT SOFTWARE RESULTS IN ANY LIABILITIES, DEMANDS, DAMAGES,
EXPENSES OR LOSSES ARISING FROM SUCH USE, INCLUDING ANY DAMAGES FROM
PRODUCTS BASED ON, OR RESULTING FROM, RECIPIENT'S USE OF THE SUBJECT
SOFTWARE, RECIPIENT SHALL INDEMNIFY AND HOLD HARMLESS THE UNITED
STATES GOVERNMENT, ITS CONTRACTORS AND SUBCONTRACTORS, AS WELL AS ANY
PRIOR RECIPIENT, TO THE EXTENT PERMITTED BY LAW.  RECIPIENT'S SOLE
REMEDY FOR ANY SUCH MATTER SHALL BE THE IMMEDIATE, UNILATERAL
TERMINATION OF THIS AGREEMENT.
 **/

import gov.nasa.larcfm.ACCoRD.DAABatchProcessor;
import gov.nasa.larcfm.ACCoRD.Daidalus;
import gov.nasa.larcfm.ACCoRD.DaidalusFileWalker;

import java.io.*;
import java.util.*;

public class DaidalusBatch extends DAABatchProcessor {  

	static final int STANDARD = 0;
	static final int PVS = 1;
	boolean verbose = false;
	boolean raw = false;
	int format = STANDARD; 
	PrintWriter out;
	boolean init = true;

	public String applicationHelpString() {
		StringBuffer str = new StringBuffer();
		str.append("DaidalusBatch [<options>] <daa_files>\n");
		str.append("Run DAIDALUS in batch mode with a given configuration on a list of DAA files. Valid <options> are:\n");
		str.append("  --verbose\n\tPrint extra information\n");
		str.append("  --raw\n\tPrint raw information\n");
		str.append("  --pvs\n\tProduce PVS output format\n");
		return str.toString();
	}

	public static void main(String[] args) {	
		DaidalusBatch processor = new DaidalusBatch();
		processor.out = new PrintWriter(System.out);
		processor.ignoreset.addAll(Arrays.asList("location","format"));
		for (int a=0;a < args.length; ++a) {
			int ap = processor.processOptions(args,a);
			if (ap >= 0) {
				a = ap;
			} else {
				String arga = args[a];
				if (arga.equals("--verbose") || arga.equals("-verbose") || arga.equals("-v")) {
					processor.verbose = true;
					processor.options.append(arga);
					processor.options.append(" ");
				} else if (arga.equals("--raw") || arga.equals("-raw")) {
					processor.raw = true;
					processor.options.append(arga);
					processor.options.append(" ");
				} else if (arga.equals("--pvs") || arga.equals("-pvs")) {
					processor.format = PVS;
					processor.options.append(arga);
					processor.options.append(" ");
				} else if (arga.startsWith("-")) {
					System.err.println("** Error: Invalid option ("+arga+")");
					System.exit(1);
				} 			
			}
		}
		if (processor.getConfigurationName().isEmpty()) {
			System.err.println("** Error: DAA configuration isn't specified. Use option --config");
			System.exit(1);
		}		
		List<String> exts = Arrays.asList("daa","xyz");
		List<File> input_files = processor.getFiles(exts);
		if (!processor.standardInputEnabled() && input_files.isEmpty()) {
			System.err.println("Usage:\n\tDaidalusBatch [<options>] <daa_files>");
			System.err.println("Try:\n\tDaidalusBatch --help");
			System.exit(1);
		} 
		try {
			String output = processor.getOutputFileName();
			if (!output.isEmpty()) {
				processor.out = new PrintWriter(new BufferedWriter(new FileWriter(output)),true);
			}
		} catch (Exception e) {
			System.err.println("** Error: "+e.getMessage());
			System.exit(1);
		}   
		if (input_files.isEmpty()) {
			processor.processFile("");
		} else {
			for (File file:input_files) {
				String filename = file.getPath();
				processor.processFile(filename);
			}
		}
		processor.out.close();
	}//main

	public void beginProcess(DaidalusFileWalker walker,Daidalus daa) {
		if (init) {
			init = false;
			switch (format) {
			case STANDARD:
				if (verbose) {
					out.println("# "+Daidalus.release());
					out.println("# Options: "+options.toString());
					out.println("#\n"+daa.toString()+"#\n");
				}
				break;
			case PVS:
				out.println("%%% "+Daidalus.release());
				out.println("%%% Options: "+options.toString());
				break;
			default:
				break;
			}
		}
		switch (format) {
		case STANDARD:
			out.println("# File: "+walker.getFileName());
			break;
		case PVS:
			out.println("%%% File:\n"+walker.getFileName());
			out.println("%%% Parameters:\n"+daa.getCore().parameters.toPVS());
			break;
		default:
			break;
		}	
	}

	public void processTime(Daidalus daa) {
		switch (format) {
		case STANDARD:
			out.print(daa.outputString());      
			if (raw) {
				out.print(daa.rawString());
			}
			break;
		case PVS:
			out.print(daa.toPVS(false));
			break;
		default:
			break;
		}	
	}

}