revert Merge pull request 'init/2.0.0' (#20) from init/2.0.0 into main Reviewed-on: #20
251 lines
7.7 KiB
Java
251 lines
7.7 KiB
Java
package ru.kamask.pet;
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import java.util.Scanner;
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public class TodoApp {
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private static TaskManager taskManager;
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private static Task[] tasks = new Task[10];
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private static int tasksCounter = 0;
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private static Scanner scanner = new Scanner(System.in);
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public static void main(String[] args) {
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TodoApp app = new TodoApp();
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taskManager = app.new TaskManager();
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app.run();
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}
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private void run() {
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while (true) {
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Task.printTotalTasksCreated();
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String menu = """
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┌──────────────────────────┐
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| [1] Добавить дело |
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| [2] Список дел |
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| [0] Выйти из программы |
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└──────────────────────────┘
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Введите номер пункта меню:""";
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switch (requestIntFromInput(menu, new int[] { 0, 1, 2 })) {
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case 1 -> displayCreateTask();
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case 2 -> displayTasks();
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case 0 -> {
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scanner.close();
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System.exit(0);
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}
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}
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}
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}
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private static void displayCreateTask() {
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if (Task.taskCount >= 9) {
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System.out.println("\nОшибка: Достигнут лимит в 10 дел.\n");
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return;
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}
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String title;
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String description;
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do {
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System.out.print("\nНапишите название дела (3–20 символов): ");
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title = scanner.nextLine().trim();
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if (title.length() >= 3 && title.length() <= 20)
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break;
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System.out.print("\nОшибка: Название должно содержать от 3 до 20 символов.\nПопробуйте снова: ");
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} while (true);
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System.out.print("\nНaпишите описание дела: ");
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description = scanner.nextLine().trim();
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taskManager.addTask(new Task(title, description));
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}
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private static void displayTask(Task task) {
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Task.TaskPrinter.print(task);
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String firstOption = switch (task.getStatus()) {
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case NEW, CANCELLED -> "Начать";
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case IN_PROGRESS -> "Выполнено";
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case COMPLETED -> "Доделать";
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};
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int input = requestIntFromInput("[1]" + firstOption + " [2]Отменить [0]Главное меню\n\nВвод:",
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new int[] { 0, 1, 2 });
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switch (input) {
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case 0:
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return;
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case 1: {
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switch (task.getStatus()) {
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case NEW, CANCELLED, COMPLETED -> taskManager.markInProgress(task.getId());
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case IN_PROGRESS -> taskManager.markCompleted(task.getId());
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}
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break;
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}
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case 2:
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taskManager.markCanceled(task.getId());
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}
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displayTask(task);
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}
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private static void displayTasks() {
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if (tasksCounter == 0) {
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int input = requestIntFromInput("""
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Список дел пуст.
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[1] Добавить дело
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[0] Выйти из программы
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Введите номер пункта:""", new int[] { 0, 1 });
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if (input == 1) {
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displayCreateTask();
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} else
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System.exit(0);
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}
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System.out.println("""
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Список дел:
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""");
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taskManager.printTasks();
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int[] variantsInput = new int[tasksCounter + 1];
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for (int i = 0; i < tasksCounter; i++)
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variantsInput[i] = tasks[i].getId();
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variantsInput[tasksCounter] = 0;
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int input = requestIntFromInput("""
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Введите номер дела или 0 для возврата в меню:""", variantsInput);
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if (input == 0)
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return;
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displayTask(getTaskById(input));
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}
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private static Task getTaskById(int id) {
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for (int i = 0; i < Task.taskCount; i++) {
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if (tasks[i].getId() == id)
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return tasks[i];
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}
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return null;
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}
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private static int requestIntFromInput(String template, int[] allowedInts) {
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do {
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System.out.print(template);
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int input;
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do {
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if (scanner.hasNextInt()) {
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input = scanner.nextInt();
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scanner.nextLine();
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break;
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} else {
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scanner.next();
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System.out.print("Ошибка: используйте цифры.\nПовторите ввод:");
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}
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} while (true);
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for (int i : allowedInts)
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if (i == input)
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return input;
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System.out.print("Ошибка: укажите номер выбранного пункта.\nПовторите ввод:");
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} while (true);
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}
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interface TaskAction {
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default void execute(Task task) {
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};
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default void start(Task task) {
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};
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default void cancel(Task task) {
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};
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}
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private class TaskManager {
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void addTask(Task task) {
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tasks[tasksCounter++] = task;
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}
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boolean markCompleted(int id) {
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for (int i = 0; i < tasksCounter; i++)
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if (tasks[i].getId() == id) {
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TaskAction action = new TaskAction() {
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@Override
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public void execute(Task task) {
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task.markCompleted();
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}
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};
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action.execute(tasks[i]);
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return true;
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}
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return false;
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}
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boolean markInProgress(int id) {
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for (int i = 0; i < tasksCounter; i++)
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if (tasks[i].getId() == id) {
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TaskAction action = new TaskAction() {
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@Override
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public void start(Task task) {
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task.markInProgress();
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}
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};
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action.start(tasks[i]);
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return true;
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}
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return false;
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}
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boolean markCanceled(int id) {
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for (int i = 0; i < tasksCounter; i++)
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if (tasks[i].getId() == id) {
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TaskAction action = new TaskAction() {
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@Override
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public void cancel(Task task) {
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task.markCanceled();
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}
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};
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action.cancel(tasks[i]);
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return true;
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}
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return false;
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}
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void printTasks() {
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class ShortTaskPrinter {
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void print(Task task) {
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int id = task.getId();
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String title = task.getTitle();
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TaskStatus status = task.getStatus();
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String stringCompleted = status.getColorCode() + status.getDescription() + "\u001B[0m";
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System.out.printf("%-3d | %-20s | %s\n", id, title, stringCompleted);
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}
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}
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ShortTaskPrinter printer = new ShortTaskPrinter();
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for (int i = 0; i < Task.taskCount; i++)
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printer.print(tasks[i]);
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}
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}
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}
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