package lab3;
import goldman.collection.Collection;

import java.io.*;

public class DriverForFinalOutput {

	public static void main(String args[]) throws FileNotFoundException{
		HistoricalEventApplication eventApp = new HistoricalEventApplication();
		BufferedReader r;

		// Create a reader for the file allEvents.  For debugging you may want to instead
		//     use 20Events
		try {
			InputStream is = new FileInputStream("allEvents");
			r = new BufferedReader(new InputStreamReader(is));
		}
		catch (IOException e) {
			System.out.println("IOException while opening " + e);
			return;
		}
	
		// Accumulate each line of the file (minus surrounding whitespace)
		// sequentially in a string buffer. 
		try {
			boolean stop = false;
			while (!stop){
				String nextline = r.readLine();
				if (nextline == null) //end of file
					stop = true;
				else
				{
					int tabLoc = nextline.indexOf('\t');  //input file is tab separated
					String tempDate = nextline.substring(0,tabLoc);
					int date = Integer.parseInt(tempDate);
					String description = nextline.substring(tabLoc+1,nextline.length());
					eventApp.add(new HistoricalEvent(date,description));
				}
			}
		}
		catch (IOException e) {
			System.out.println("IOException while reading " + e);
		}
		
		//test date search
		System.out.println("Date search for 1771.");
		outputEventsInCollection(eventApp.dateSearch(1771));
		
		System.out.println("\nDate search for 1945.");
		outputEventsInCollection(eventApp.dateSearch(1945));
		
		System.out.println("\nDate search for 1984.");
		outputEventsInCollection(eventApp.dateSearch(1984));
		
		//test range search
		System.out.println("\nRange search for [-5000,-2000].");
		outputEventsInRange(eventApp.rangeSearch(-5000,-2000));
		
		System.out.println("\nRange search for [0,100].");
		outputEventsInRange(eventApp.rangeSearch(0,100));
		
		System.out.println("\nRange search for [1700,1779].");
		outputEventsInRange(eventApp.rangeSearch(1770,1779));
		
		System.out.println("\nRange search for [1990,2000].");
		outputEventsInRange(eventApp.rangeSearch(1990,2000));
		
		//test word search
		System.out.println("\nWord search for last.");
		outputEventsInCollection(eventApp.wordSearch("last"));
			
		System.out.println("\nWord search for virus.");
		outputEventsInCollection(eventApp.wordSearch("virus"));
			
		System.out.println("\nWord search for nebulae.");
		outputEventsInCollection(eventApp.wordSearch("nebulae"));
		
		System.out.println("\nWord search for pi.");
		outputEventsInCollection(eventApp.wordSearch("pi"));
			
		
		//test remove date
		System.out.println("\nRemoving following events with date 1771.");
		outputEventsInCollection(eventApp.removeDate(1771));
		
		System.out.println("\nRemoving following events with date 1848.");
		outputEventsInCollection(eventApp.removeDate(1848));
		
		System.out.println("\nRemoving a specific event that is there.");
		HistoricalEvent event = new HistoricalEvent();
		
		//test remove event
		event.date = 1984;
		event.description = "Alec Jeffreys devises a DNA fingerprinting method";
		if (eventApp.removeEvent(event))
			System.out.println("The event was found and removed.");
		else
			System.out.println("There was no such event");
		
		System.out.println("\nRemoving a specific event that is not there.");
		event.date = 1984;
		event.description = "Ken and Sally Goldman were married.";
		if (eventApp.removeEvent(event))
			System.out.println("The event was found and removed.");
		else
			System.out.println("There was no such event.");
		
		eventApp.add(new HistoricalEvent(1999,"Takahashi Kanada computed pi to 206158430000 digits"));
		eventApp.add(new HistoricalEvent(1947,"Wrench Ferguson computed pi to 808 digits using a desk calculator."));
		
		//check deletes and adds are properly reflected
		System.out.println("\nRepeating range search for [1770-1779].");
		outputEventsInRange(eventApp.rangeSearch(1770,1779));
		
		System.out.println("\nRepeating word search for nebulae.");
		outputEventsInCollection(eventApp.wordSearch("nebulae"));
			
		System.out.println("\nRepeating word search for pi.");
		outputEventsInCollection(eventApp.wordSearch("pi"));
		
		//additional tests
		System.out.println("\nDate search for 1050.");
		outputEventsInCollection(eventApp.dateSearch(1050));
		event.date = 1050;
		event.description = "Crossbows are invented in France";
		if (eventApp.removeEvent(event))
			System.out.println("The event was found and removed.");
		else
			System.out.println("There was no such event");
		if (eventApp.contains(1050))
			System.out.println("There is an event on 1050");
		else
			System.out.println("There are no events on 1050");
		
		System.out.println("\nWord search for bronze.");
		outputEventsInCollection(eventApp.wordSearch("bronze"));
		event.date = -3000;
		event.description = "Bronze is used for weapons and armor";
		if (eventApp.removeEvent(event))
			System.out.println("The event was found and removed.");
		else
			System.out.println("There was no such event");
		if (eventApp.contains("bronze"))
			System.out.println("There is an event with the word bronze");
		else
			System.out.println("There are no events with the word bronze");
		
		System.out.println("\nRange search for [30-40].");
		outputEventsInRange(eventApp.rangeSearch(30,40));
		
	}
	
	static void outputEventsInCollection(Collection<HistoricalEvent> eventCollection) {
		for (HistoricalEvent e: eventCollection)
			System.out.println(e);
	}
	
	static void outputEventsInRange(RangeIterator<HistoricalEvent> it) {
		while (it.hasNext()) 
			System.out.println(it.next());
	}
}