package parseWithModel.complete;

import com.opencsv.bean.CsvToBean;
import com.opencsv.bean.CsvToBeanBuilder;

import java.io.*;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Iterator;

/**
 * This class is part of a demo to demonstrate how csv data can be parsed using Java
 * This class uses the CSVReader to read a CSV file and read the file line by line
 * This part of the demo will use UserModel.java and will create an object for each line
 */
public class ModelDataParser {

    /**
     * The path of the csv from the root
     */
    private static final String CSV_FILENAME = "users-with-header.csv";

    /**
     * This method reads the csv file and prints out the data from the file after
     * reading the file line by line
     *
     * @param args
     */
    public static void main(String[] args) {
        InputStream stream = ModelDataParser.class.getResourceAsStream("/data/" + CSV_FILENAME);
        if(stream == null) {
            System.err.println("File not found: " + CSV_FILENAME);
            System.exit(1);
        }
        Reader reader = new BufferedReader(new InputStreamReader(stream));

        CsvToBean<UserModel> csvToBean = new CsvToBeanBuilder<UserModel>(reader)
                .withType(UserModel.class)
                .withIgnoreLeadingWhiteSpace(true)
                .withSeparator(',')
                .build();

        Iterator<UserModel> csvUserIterator = csvToBean.iterator();

        while(csvUserIterator.hasNext()) {
            UserModel csvUser = csvUserIterator.next();
            System.out.println("Name : " + csvUser.getName());
            System.out.println("Email : " + csvUser.getEmail());

            System.out.println("==========================");
        }
    }
}