Main.java

package mmis;

import java.io.IOException;
import java.nio.file.Path;
import java.util.List;

public class Main {
    public static void main(String[] args) throws IOException {
        if (args.length < 4) {
            System.out.println("Usage: java mmis.Main <input.csv> <machine-count> <schedule-output.csv> <unassigned-output.csv>");
            return;
        }

        Path inputPath = Path.of(args[0]);
        int machineCount = Integer.parseInt(args[1]);
        Path scheduleOutputPath = Path.of(args[2]);
        Path unassignedOutputPath = Path.of(args[3]);

        CsvJobReader reader = new CsvJobReader();
        List<Job> jobs = reader.read(inputPath);

        GreedyScheduler scheduler = new GreedyScheduler();
        SolverResult result = scheduler.solve(jobs, machineCount);

        CsvScheduleWriter writer = new CsvScheduleWriter();
        writer.writeSchedule(scheduleOutputPath, result.getScheduledJobs());
        writer.writeUnassigned(unassignedOutputPath, result.getUnassignedJobs());

        System.out.printf("Scheduled %d jobs and left %d unassigned.%n",
            result.getScheduledJobs().size(),
            result.getUnassignedJobs().size());
    }
}