Untitled

package DHW;

/*
* ** Question **
Imagine system keeping track of customer visiting various pages on their website `somethingfun.com`
System creates a log file for each day and each line having something like [customerId, pageId, timestamp] for
* each visit of the customer.

Given 2 logs files log1 (day-n) and log2(day-y) find loyal customers which show following properties
- Visited 2 unique pages
- visited the website on each day
*
* 1,2,2 => userid, pageid, timestamp
*
* "user1, page1, timestamp\n
   user2, page1, timestamp\n
   user3, page2, timestamp"
* */

import java.util.*;

public class LogAnalyser {

    public static void main (String[] args) {
        String logData1 = "user1, page1, day1\n" +
                "user2, page1, day1\n"+
                "user3, page2, day1";

        String logData2 = "user1, page1, day2\n" +
                "user2, page1, day2\n"+
                "user3, page2, day2";
        LogAnalyser logAnalyser = new LogAnalyser();
        logAnalyser.processLogData(logData1, logData2);
    }

    public void processLogData(String logData1, String logData2){
        //reading lines
        //split lines(,)
        String combinedLogs = logData1 + "\n" + logData2;
        Map<String, Map<String, Set<String>>> userVisitData = new HashMap<>();
        String [] logEntries = combinedLogs.split("\n");
        for(String entry: logEntries){
            String[] parts = entry.split(",");
            String userId = parts[0];
            String pageId = parts[1];
            String timestamp = parts[2];

            userVisitData.computeIfAbsent(userId, k -> new HashMap<>());
            if(userVisitData.get(userId).containsKey(timestamp)){
                userVisitData.get(userId).get(timestamp).add(pageId);
            }
            else{
                userVisitData.get(userId).put(timestamp, );
            }
            

        }

        System.out.println(userVisitData.toString());

    }

//    public void List<String> getUsers (int threshold){
//        List<String> users = new ArrayList<>();
//
////        for()
//
//    }
}