package innovimax.mixthem;

import innovimax.mixthem.arguments.ParamValue;
import innovimax.mixthem.arguments.Rule;
import innovimax.mixthem.arguments.RuleParam;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.util.Arrays;
import java.util.Collections;
import java.util.EnumMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.stream.Stream;

/**
* Provides different runs for testing a rule according to the additional parameters
* @author Innovimax
* @version 1.0
*/
public class RuleRuns {
	
	final private static String DEFAULT_OUTPUT_FILE = "default";

  	/**
  	* Returns a list of test runs for the rule.
  	* @param url The URL of rule additional parameters file
  	* @return Returns a list of test runs for the rule
    	*/	
	public static List<RuleRun> getRuns(Rule rule, URL url) throws FileNotFoundException, IOException, NumberFormatException {
    		List<RuleRun> runs = new LinkedList<RuleRun>();		
    		runs.add(new RuleRun(Collections.emptyMap()));
		if (url != null) {
			File file = new File(url.getFile());			
			BufferedReader reader = Files.newBufferedReader(file.toPath(), StandardCharsets.UTF_8);
			Stream<String> entries = reader.lines();
			entries.forEach(entry -> {
				String[] parts = entry.split("\\s");
				if (parts.length > 1) {
					String suffix = parts[0];
					Map<RuleParam, ParamValue> params = new EnumMap<RuleParam, ParamValue>(RuleParam.class);
					switch (rule) {
						case RANDOM_ALT_LINE:
							int seed = Integer.parseInt(parts[1]);
							params.put(RuleParam.RANDOM_SEED, ParamValue.createInt(seed));
							break;
						case JOIN:
							int col = Integer.parseInt(parts[1]);
							params.put(RuleParam.JOIN_COL1, ParamValue.createInt(col));
							if (parts.length > 2) {
								col = Integer.parseInt(parts[2]);
								params.put(RuleParam.JOIN_COL2, ParamValue.createInt(col));
							}	
							break;
						case ZIP_LINE:
						case ZIP_CELL:
						case ZIP_CHAR:
							String sep = parts[1];
							params.put(RuleParam.ZIP_SEP, ParamValue.createString(sep));
					}
					if (suffix.equals(DEFAULT_OUTPUT_FILE)) {
						runs.add(new RuleRun(null, params));
					} else {
						runs.add(new RuleRun(suffix, params));
					}
				}
			});
		}
    		return runs;
  	}

}

@@ -981,16 +981,22 @@
 getRuns(
+final 
 Rule rul
@@ -997,16 +997,22 @@
 le rule,
+ final
  URL url
@@ -1086,16 +1086,22 @@
 %7B%0A    %09%09
+final 
 List%3CRul
@@ -1219,16 +1219,22 @@
 l) %7B%0A%09%09%09
+final 
 File fil
@@ -1268,16 +1268,22 @@
 ;%09%09%09%0A%09%09%09
+final 
 Buffered
@@ -1365,16 +1365,22 @@
 _8);%0A%09%09%09
+final 
 Stream%3CS
@@ -1442,24 +1442,30 @@
 ry -%3E %7B%0A%09%09%09%09
+final 
 String%5B%5D par
@@ -1518,24 +1518,30 @@
 %3E 1) %7B%0A%09%09%09%09%09
+final 
 String suffi
@@ -1559,16 +1559,22 @@
 %5D;%0A%09%09%09%09%09
+final 
 Map%3CRule
@@ -1706,24 +1706,30 @@
 INE:%0A%09%09%09%09%09%09%09
+final 
 int seed = I
@@ -2203,16 +2203,22 @@
 %0A%09%09%09%09%09%09%09
+final 
 String s

Update RuleRuns.java