PROG_LAB5-7/src/main/java/me/zinch/console/Console.java

package me.zinch.console;

import me.zinch.commands.CommandManager;
import me.zinch.exceptions.ColorFormatException;
import me.zinch.exceptions.CommandActionException;
import me.zinch.exceptions.UnitOfMeasureFormatException;
import me.zinch.exceptions.ValidationException;
import me.zinch.files.DbController;
import me.zinch.models.Color;
import me.zinch.models.Coordinates;
import me.zinch.models.Location;
import me.zinch.models.Person;
import me.zinch.models.ProductDTO;
import me.zinch.models.UnitOfMeasure;
import me.zinch.validator.ValidateResult;
import me.zinch.validator.Validators;
import me.zinch.wrapper.ProductCollection;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Scanner;

/**
 Console class provides methods for interacting with the console, reading user input, and managing application flow.
 This class includes methods for appending input history, stopping the application, reading product DTO from the console, and running the application loop.
 */
public class Console {
  private static final Scanner scanner = new Scanner(System.in);
  private static boolean isRunning = true;
  private static final List<String> history = new ArrayList<>();

  public static void appendHistory(String input) {
    history.add(input);
  }

  public static void stopApp() {
    isRunning = false;
    scanner.close();
  }

  public static String getLastCommand() {
    return history.get(history.size() - 1);
  }


  private static String readString() {
    var input = scanner.nextLine().trim();
    return input.isEmpty() ? null : input;
  }

  private static Long readLong() {
    var input = scanner.nextLine().trim();
    if (input.isEmpty()) return null;
    try {
      return Long.parseLong(input);
    } catch (NumberFormatException e) {
      throw new NumberFormatException(String.format("Не могу распознать %s как число", input));
    }
  }

  private static Color readColor() throws ColorFormatException {
    System.out.format("Цвет волос(%s): ", Color.getColorsString());
    var input = readString();
    if (input == null || input.isEmpty()) return null;
    try {
      return Color.create(Integer.parseInt(input));
    } catch (NumberFormatException | ArrayIndexOutOfBoundsException e) {
      try {
        return Color.create(input);
      } catch (IllegalArgumentException ex) {
        throw new ColorFormatException(ex.getMessage());
      }
    }
  }

  private static UnitOfMeasure readUnitOfMeasure() throws UnitOfMeasureFormatException {
    System.out.format("Единица измерения(%s): ", UnitOfMeasure.getUnitOfMeasuerString());
    var input = readString();
    try {
      return UnitOfMeasure.create(Integer.parseInt(input));
    } catch (NumberFormatException | ArrayIndexOutOfBoundsException e) {
      try {
        return UnitOfMeasure.create(input);
      } catch (IllegalArgumentException ex) {
        throw new ColorFormatException(ex.getMessage());
      }
    }
  }

  private static Location readLocation() throws NumberFormatException {
    System.out.print("Создать поле Location? (Y/n): ");
    var input = readString();
    if (input != null && input.equalsIgnoreCase("n")) return null;
    System.out.print("Координата x локации: ");
    var locationX = Float.parseFloat(readString());
    System.out.print("Координата y локации: ");
    var locationY = Integer.parseInt(readString());
    System.out.print("Название: ");
    var locationName = readString();
    return new Location(locationX, locationY, locationName);
  }

  private static void readField(String fieldName, Runnable function) {
    while (true) {
      if (fieldName != null) System.out.format("%s: ", fieldName);
      try {
        function.run();
        return;
      } catch (NullPointerException e) {
        System.out.println("Произошла ошибка при заполнении поля\nПоле не может быть null");
      } catch (Exception e) {
        System.out.format("Произошла ошибка при заполнении поля%n%s%n", e.getMessage());
      }
    }
  }

  private static void readField(Runnable function) {
    readField(null, function);
  }

  public static ProductDTO readProductDTO() {
    var productDTO = new ProductDTO();
    var coordinates = new Coordinates();
    var owner = new Person();
    System.out.println("Заполните следующие поля: ");

    readField("Название", () -> productDTO.setName(readString()));
    readField("Координата x", () -> coordinates.setX(readLong()));
    readField("Координата y", () -> coordinates.setY(readLong()));
    readField("Цена", () -> productDTO.setPrice(readLong()));
    readField("Номер части", () -> productDTO.setPartNumber(readString()));
    readField("Себестоимость", () -> productDTO.setManufactureCost(readLong()));
    readField(() -> productDTO.setUnitOfMeasure(readUnitOfMeasure()));
    readField("Имя владельца", () -> owner.setName(readString()));
    readField("Данные паспорта", () -> owner.setPassportID(readString()));
    readField(() -> owner.setHairColor(readColor()));
    readField(() -> owner.setLocation(readLocation()));

    productDTO.setCoordinates(coordinates);
    productDTO.setOwner(owner);
    return productDTO;
  }

  public static void run() throws IOException, ValidationException {
    var productList = DbController.loadDb();
    var validationResult = Validators.validateProductList(productList);
    if (!validationResult.stream().allMatch(ValidateResult::isValid)) {
      throw new ValidationException(String.join("\n", validationResult
              .stream()
              .map(ValidateResult::getMessage)
              .toList()));
    }

    var productCollection = new ProductCollection(productList);
    System.out.println("Добро пожаловать! Для просмотра команд введите help");

    while(isRunning) {
      System.out.print(":");
      try {
        var input = scanner.nextLine().trim();
        var command = CommandManager.getCommandByInput(input);
        if (command.isPresent()) {
          appendHistory(input);
          try {
            System.out.println(command.get().action(productCollection));
          } catch (CommandActionException e) {
            System.out.println(e.getMessage());
          }
        } else {
          System.out.println("Такой команды не существует. Напишите help, чтобы посмотреть список доступных команд.");
        }
      } catch (NoSuchElementException e) {
        stopApp();
      }
      System.out.println();
    }
    System.out.println("Всего хорошего!");
  }
}