package test;

// import static org.junit.Assert.*;

import java.util.LinkedList;
import java.util.List;

// import org.junit.Test;

import rep.REPCommand;
import rep.REP;
// import rep.optimizers.NullOptimizer;
import rep.optimizers.DeleteInsertOptimizer;
import rep.optimizers.REPCommandOptimizer;



public class RepCommandOptimizeTest {
	//テストコマンド (command,string,lineno,eid)
	static String[] test1 = {
		Integer.toString(REP.REPCMD_DELETE.id),"d","1","1",
		Integer.toString(REP.REPCMD_INSERT.id),"B","3","2",
		Integer.toString(REP.REPCMD_INSERT.id),"B","1","3",
		Integer.toString(REP.REPCMD_INSERT.id),"C","3","4",
		Integer.toString(REP.REPCMD_DELETE.id),"d","13","5",
		Integer.toString(REP.REPCMD_DELETE.id),"d","3","6",
		Integer.toString(REP.REPCMD_DELETE.id),"d","1","7",
		Integer.toString(REP.REPCMD_INSERT.id),"A","5","8",
		Integer.toString(REP.REPCMD_DELETE.id),"d","1","9",
		Integer.toString(REP.REPCMD_DELETE.id),"d","0","10",
		Integer.toString(REP.REPCMD_INSERT.id),"B","10","11",
		Integer.toString(REP.REPCMD_INSERT.id),"C","3","13",
		Integer.toString(REP.REPCMD_DELETE.id),"d","2","14",
		Integer.toString(REP.REPCMD_DELETE.id),"d","0","14",
		Integer.toString(REP.REPCMD_DELETE.id),"d","3","15",
		Integer.toString(REP.REPCMD_DELETE.id),"d","1","16",
		Integer.toString(REP.REPCMD_INSERT.id),"A","0","17",
		Integer.toString(REP.REPCMD_INSERT.id),"K","0","17",
		Integer.toString(REP.REPCMD_DELETE.id),"d","1","18",
		Integer.toString(REP.REPCMD_NOP.id),"","0","19",
		Integer.toString(REP.REPCMD_NOP.id),"","0","20",
	};
	
	static private String[] text1d = {
		"aaa", "bbb", "ccc", "ddd", "eee",
		"fff", "ggg", "hhh", "iii", "jjj",
		"kkk", "lll", "mmm", "nnn", "ooo",
		"ppp", "qqq", "rrr", "sss", "ttt",
		"uuu", "vvv", "www", "xxx", "yyy", "zzz"
	};	

	static private String[] text2d = {
		"aaa", "bbb", "ccc", "ddd", "eee",
		"fff", "ggg", "hhh", "iii", "jjj",
		"kkk", "lll", "mmm", "nnn", "ooo",
		"ppp", "qqq", "rrr", "sss", "ttt",
		"uuu", "vvv", "www", "xxx", "yyy", "zzz"	
	};

	private static int err=0;	
	
	public static List<REPCommand> makeCommandList(String[] str){
		int seq = 0;
		LinkedList<REPCommand> cmdlist = new LinkedList<REPCommand>();
		try{
			for( int i = 0;i < str.length; i+=4){
				int cmd = Integer.parseInt(str[i]);
				int lineno = Integer.parseInt(str[i+2]);

				int sid = Integer.parseInt(str[i+3]);
				int eid = sid;
				cmdlist.add(new REPCommand(cmd, sid, eid, seq++, lineno, str[i+1].length(), str[i+1]));
			}
		}catch(Exception e){
			e.printStackTrace();
		}
		return cmdlist;
	}


	public static void printCmdList(List<REPCommand> list){
		for(REPCommand r: list){
			System.out.println(r.toString());
		}
		System.out.println("Total = " + list.size());
	}

	public static void printText(Text text){
		text.printAllText();
	}
	
	
	public static void main(String[] s){
		RepCommandOptimizeTest t = new RepCommandOptimizeTest();
		t.main0();
	}

	// @Test
	public void main0(){
	
		REPCommandOptimizer rco;

		if (true)  rco = new DeleteInsertOptimizer();  //
		//else       rco = new NullOptimizer();  // なにも最適化しない

		List<REPCommand> cmdlist;
		
		cmdlist = makeCommandList(test1);
		int total = 0;
		while(cmdlist.size()>0) {
			Text text1 = new Text(text1d);
			Text text2 = new Text(text2d);
			java.util.Collections.shuffle(cmdlist);
			test(rco, cmdlist, text1, text2);
			total++;
			cmdlist.remove(0);
		}
		System.out.println("Errors "+err+"/"+total+".");

	}

	private static void test(REPCommandOptimizer rco, List<REPCommand> cmdlist,
			Text text1, Text text2) {
		List<REPCommand> result;		// optimize
		// this command list is applied to a text. and print the text. 
		text1.edit(cmdlist);
		result = rco.optimize(cmdlist);
		// this command list applied to other text, and print it.
		text2.edit(result);
		// check two texts.
		// assertEquals(text1.equals(text2),true);
		if(!text1.equals(text2)){
			System.out.println("two texts not match");
			print(cmdlist, result, text1, text2);
			err++;
		}
	}
	
	private static void print(List<REPCommand> cmdlist,
				List<REPCommand> result,
				Text text1, Text text2) {

		// print non optimized command list
		System.out.println("---------- CmdList before optimized ----------");
		printCmdList(cmdlist);

		// print optimized command list.
		System.out.println("---------- CmdList after optimized ----------");
		printCmdList(result);
		
		System.out.println("---------- Text difference ------------------");
		int max = max(text1.size(),text2.size());
		for(int i=0;i<max;i++) {
			System.out.println(i+":\t"+text1.get(i)+"\t"+text2.get(i));
		}
	}



	private static int max(int size, int size2) {
		return size>size2?size:size2;
	}

	}