package ee.taltech.iti0202.birdwatching.bird;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
import java.util.ArrayList;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class BirdDataController {
    private List<String> birdsFromFile = new ArrayList<>();
    private List<Bird> birds = new ArrayList<>();
    public void readBirdDataFromCsvFile(String filename) {
        Path path = Paths.get(filename);
        try {
            Stream<String> lineStream = Files.lines(path);
            birdsFromFile = lineStream.filter(event -> event.length() > 0 && event.split(",").length == 5)
                    .collect(Collectors.toList());
            for (int i = 0; i < birdsFromFile.size(); i++) {
                buildABird(birdsFromFile.get(i));
            }
        } catch (IOException e) {
            throw new BirdDataException("Error handling bird data", e);
        }
    }
    public void buildABird(String listOfBirds) {
        String[] birdComponents = listOfBirds.split(",");
        String birdName = birdComponents[0];
        double birdWeight = Double.valueOf(birdComponents[1]);
        double birdWingSpan = Double.valueOf(birdComponents[2]);
        Bird.Sex birdSex = Bird.Sex.valueOf(birdComponents[3].toUpperCase());
        Bird.Age birdAge = Bird.Age.valueOf(birdComponents[4].toUpperCase());
        Bird birdy = new BirdBuilder(birdName, birdWeight)
                .optWingspan(birdWingSpan)
                .optGender(birdSex)
                .optAge(birdAge)
                .build();
        birds.add(birdy);
    }
    public List<Bird> getBirds() {
        return birds;
    }
}