Merge pull request 'feature/tasks/enum-status-and-idgen' (#19) from feature/tasks/enum-status-and-idgen into main

Reviewed-on: #19

todo/src/main/java/ru/kamask/pet/Task.java

@@ -3,27 +3,30 @@ package ru.kamask.pet;
 import java.time.LocalDate;
 
 class Task {
-    private static int nextId;
-    static int taskCount;
+    static int taskCount = 0;
+
+    enum TaskIdGenerator {
+        INSTANCE;
+
+        private int currentId = 1;
+
+        int nextId() {
+            return currentId++;
+        }
+    }
 
     private int id;
     private String title;
     private String description;
-    private boolean completed = false;
+    private TaskStatus status;
     private LocalDate createdAt;
 
-    static {
-        taskCount = 0;
-        nextId = 0;
-    }
-
-    {
-        id = ++nextId;
+    Task(String title, String description) {
+        id = TaskIdGenerator.INSTANCE.nextId();
+        status = TaskStatus.NEW;
         createdAt = LocalDate.now();
         taskCount++;
-    }
 
-    Task(String title, String description) {
         this.title = title;
         this.description = description;
     };
@@ -32,17 +35,36 @@ class Task {
         System.out.println("Колличество дел: " + taskCount);
     }
 
-    void printInfo() {
-        String stringCompleted = completed ? "[х]" : "[ ]";
-        System.out.printf("%-3d | %-20s | %s\n", id, title, stringCompleted);
+    int getId() {
+        return id;
     }
 
-    void printInfo(boolean full) {
-        if (!full) {
-            printInfo();
-            return;
+    String getTitle() {
+        return title;
     }
 
+    boolean isCompleted() {
+        return status == TaskStatus.COMPLETED;
+    }
+
+    void markCompleted() {
+        status = TaskStatus.COMPLETED;
+    }
+
+    void markInProgress() {
+        status = TaskStatus.IN_PROGRESS;
+    }
+
+    void markCanceled() {
+        status = TaskStatus.CANCELLED;
+    }
+
+    TaskStatus getStatus() {
+        return status;
+    }
+
+    static class TaskPrinter {
+        static void print(Task task) {
             String template = """
 
                     ──────────────────────────────
@@ -55,29 +77,8 @@ class Task {
 
                     """;
             ;
-        String stringCompleted = completed ? "выполнено" : "не выполнено";
-        System.out.printf(template, id, createdAt, stringCompleted, title, description);
-    }
-
-    void toggleCompleted() {
-        completed = !completed;
-    }
-
-    int getId() {
-        return id;
-    }
-
-    String getTitle() {
-        return title;
-    }
-
-    boolean getCompleted() {
-        return completed;
-    }
-
-    static class TaskPrinter {
-        void print(Task task) {
-            task.printInfo(true);
+            String stringCompleted = task.status.getColorCode() + task.status.getDescription() + "\u001B[0m";
+            System.out.printf(template, task.id, task.createdAt, stringCompleted, task.title, task.description);
         }
     }
 

todo/src/main/java/ru/kamask/pet/TaskStatus.java

@@ -0,0 +1,41 @@
+package ru.kamask.pet;
+
+public enum TaskStatus {
+    NEW("новое") {
+        @Override
+        String getColorCode() {
+            return "\u001B[34m";
+        }
+    },
+    IN_PROGRESS("в работе") {
+        @Override
+        String getColorCode() {
+            return "\u001B[35m";
+        }
+    },
+    COMPLETED("сделано") {
+        @Override
+        String getColorCode() {
+            return "\u001B[32m";
+        }
+    },
+    CANCELLED("отменено") {
+        @Override
+        String getColorCode() {
+            return "\u001B[31m";
+        }
+    };
+
+    abstract String getColorCode();
+
+    private final String description;
+
+    TaskStatus(String description) {
+        this.description = description;
+    }
+
+    String getDescription() {
+        return description;
+    }
+
+}

todo/src/main/java/ru/kamask/pet/TodoApp.java

@@ -69,14 +69,32 @@ public class TodoApp {
     }
 
     private static void displayTask(Task task) {
-        task.printInfo(true);
-        String firstOption = task.getCompleted() ? "[1]Не выполнено" : "[1]Выполнено";
-        int input = requestIntFromInput(firstOption + " [0]Главное меню\n\nВвод:",
-                new int[] { 0, 1 });
-        if (input == 1) {
-            task.toggleCompleted();
-            displayTask(task);
+        Task.TaskPrinter.print(task);
+
+        String firstOption = switch (task.getStatus()) {
+            case NEW, CANCELLED -> "Начать";
+            case IN_PROGRESS -> "Выполнено";
+            case COMPLETED -> "Доделать";
+        };
+
+        int input = requestIntFromInput("[1]" + firstOption + " [2]Отменить [0]Главное меню\n\nВвод:",
+                new int[] { 0, 1, 2 });
+
+        switch (input) {
+            case 0:
+                return;
+            case 1: {
+                switch (task.getStatus()) {
+                    case NEW, CANCELLED, COMPLETED -> taskManager.markInProgress(task.getId());
+                    case IN_PROGRESS -> taskManager.markCompleted(task.getId());
                 }
+                break;
+            }
+            case 2:
+                taskManager.markCanceled(task.getId());
+        }
+
+        displayTask(task);
     }
 
     private static void displayTasks() {
@@ -102,7 +120,7 @@ public class TodoApp {
 
                 """);
 
-        printAll(tasks);
+        taskManager.printTasks();
 
         int[] variantsInput = new int[tasksCounter + 1];
         for (int i = 0; i < tasksCounter; i++)
@@ -150,20 +168,15 @@ public class TodoApp {
         } while (true);
     }
 
-    private static void printAll(Task... tasks) {
-        for (Task t : tasks)
-            if (t != null)
-                t.printInfo();
-    }
+    interface TaskAction {
+        default void execute(Task task) {
+        };
 
-    private static boolean markTaskCompletedById(Task[] tasks, int id) {
-        for (Task t : tasks)
-            if (t != null && t.getId() == id) {
-                if (!t.getCompleted())
-                    t.toggleCompleted();
-                return true;
-            }
-        return false;
+        default void start(Task task) {
+        };
+
+        default void cancel(Task task) {
+        };
     }
 
     private class TaskManager {
@@ -171,25 +184,67 @@ public class TodoApp {
             tasks[tasksCounter++] = task;
         }
 
-        void markCompleted(int id) {
-            markTaskCompletedById(tasks, id);
+        boolean markCompleted(int id) {
+            for (int i = 0; i < tasksCounter; i++)
+                if (tasks[i].getId() == id) {
+                    TaskAction action = new TaskAction() {
+                        @Override
+                        public void execute(Task task) {
+                            task.markCompleted();
+                        }
+                    };
+                    action.execute(tasks[i]);
+                    return true;
+                }
+            return false;
+        }
+
+        boolean markInProgress(int id) {
+            for (int i = 0; i < tasksCounter; i++)
+                if (tasks[i].getId() == id) {
+                    TaskAction action = new TaskAction() {
+                        @Override
+                        public void start(Task task) {
+                            task.markInProgress();
+                        }
+                    };
+                    action.start(tasks[i]);
+                    return true;
+                }
+            return false;
+        }
+
+        boolean markCanceled(int id) {
+            for (int i = 0; i < tasksCounter; i++)
+                if (tasks[i].getId() == id) {
+                    TaskAction action = new TaskAction() {
+                        @Override
+                        public void cancel(Task task) {
+                            task.markCanceled();
+                        }
+                    };
+                    action.cancel(tasks[i]);
+                    return true;
+                }
+            return false;
         }
 
         void printTasks() {
             class ShortTaskPrinter {
                 void print(Task task) {
-                    System.out.printf("%-3s | %s\n", task.getId(), task.getTitle());
+                    int id = task.getId();
+                    String title = task.getTitle();
+                    TaskStatus status = task.getStatus();
+
+                    String stringCompleted = status.getColorCode() + status.getDescription() + "\u001B[0m";
+                    System.out.printf("%-3d | %-20s | %s\n", id, title, stringCompleted);
                 }
             }
 
-            ShortTaskPrinter p = new ShortTaskPrinter();
+            ShortTaskPrinter printer = new ShortTaskPrinter();
             for (int i = 0; i < Task.taskCount; i++)
-                p.print(tasks[i]);
+                printer.print(tasks[i]);
         }
 
     }
-
-    interface TaskAction {
-        void execute(Task task);
-    }
 }