Добавил команду execute_script

.gitignore

@@ -32,3 +32,5 @@ bin/
 
 ### Build ###
 target
+
+*.scr

Notes.md

@@ -1,4 +0,0 @@
-### Этапы работы программы
-
-1. Проверка файла с базой данных
-2. Пользовательский ввод

src/main/java/me/zinch/commands/CommandManager.java

@@ -37,6 +37,7 @@ public class CommandManager {
     registerCommand(new AddIfMin());
     registerCommand(new RemoveLower());
     registerCommand(new Save());
+    registerCommand(new ExecuteScript());
 
     registerCommand(new Help());
   }

src/main/java/me/zinch/commands/ExecuteScript.java

@@ -0,0 +1,58 @@
+package me.zinch.commands;
+
+import me.zinch.console.Console;
+import me.zinch.files.ScriptLoader;
+import me.zinch.wrapper.ProductCollection;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Pattern;
+
+public class ExecuteScript extends Command {
+  private static final List<String> executeStack = new ArrayList<>();
+
+  private void addFileToStack(String filePath) {
+    executeStack.add(filePath);
+  }
+
+  private void clearStack() {
+    executeStack.clear();
+  }
+
+  private boolean checkFileInStack(String filePath) {
+    return executeStack.contains(filePath);
+  }
+
+  public ExecuteScript() {
+    super("execute_script file_name", "считать и исполнить скрипт из указанного файла. В скрипте содержатся команды в таком же виде, в котором их вводит пользователь в интерактивном режиме", Pattern.compile("^execute_script .+"));
+  }
+
+  @Override
+  public void action(ProductCollection productCollection) {
+    try {
+      var scriptFile = Console.getLastCommand().split(" ")[1];
+      addFileToStack(scriptFile);
+      var commandList = ScriptLoader.loadList(scriptFile);
+      for (var input: commandList) {
+        input = input.trim();
+        var command = CommandManager.getCommandByInput(input);
+        if (command.isPresent()) {
+          Console.appendHistory(input);
+          if (command.get() instanceof ExecuteScript) {
+            var nextFile = input.split(" ")[0];
+            if (checkFileInStack(nextFile)) continue;
+            addFileToStack(nextFile);
+          }
+          command.get().action(productCollection);
+        } else {
+          new UnknownCommand().action(productCollection);
+        }
+      }
+      clearStack();
+      System.out.format("Скрипт %s завершил работу.%n", scriptFile);
+    } catch (IOException e) {
+      System.out.println(e.getMessage());
+    }
+  }
+}

src/main/java/me/zinch/commands/UnknownCommand.java

@@ -0,0 +1,14 @@
+package me.zinch.commands;
+
+import me.zinch.wrapper.ProductCollection;
+
+public class UnknownCommand extends Command {
+  public UnknownCommand() {
+    super("", "");
+  }
+
+  @Override
+  public void action(ProductCollection productCollection) {
+    System.out.println("Команда не распознана.");
+  }
+}

src/main/java/me/zinch/console/Console.java

@@ -23,7 +23,7 @@ public class Console {
   private static boolean isRunning = true;
   private static final List<String> history = new ArrayList<>();
 
-  private static void appendHistory(String input) {
+  public static void appendHistory(String input) {
     history.add(input);
   }
 

src/main/java/me/zinch/files/DbController.java

@@ -48,6 +48,7 @@ public class DbController {
     try {
       BufferedInputStream bufferedInputStream = new BufferedInputStream(new FileInputStream(path));
       Products collection = xmlMapper.readValue(bufferedInputStream, Products.class);
+      bufferedInputStream.close();
       return collection.getProducts();
     } catch (FileNotFoundException e) {
       throw new FileNotFoundException("Не удалось найти файл " + path);
@@ -62,6 +63,7 @@ public class DbController {
     try {
       OutputStreamWriter outputStreamWriter = new OutputStreamWriter(new FileOutputStream(path));
       xmlMapper.writeValue(outputStreamWriter, new Products(list));
+      outputStreamWriter.close();
     } catch (FileNotFoundException e) {
       throw new FileNotFoundException(e.getMessage());
     } catch (IOException e) {

src/main/java/me/zinch/files/ScriptLoader.java

@@ -0,0 +1,29 @@
+package me.zinch.files;
+
+import java.io.BufferedInputStream;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+public class ScriptLoader {
+  public static List<String> loadList(String path) throws IOException {
+    try {
+      BufferedInputStream bufferedInputStream = new BufferedInputStream(new FileInputStream(path));
+      Scanner scanner = new Scanner(bufferedInputStream);
+      List<String> list = new ArrayList<>();
+      while (scanner.hasNextLine()) {
+        list.add(scanner.nextLine());
+      }
+      bufferedInputStream.close();
+      scanner.close();
+      return list;
+    } catch (FileNotFoundException e) {
+      throw new FileNotFoundException(String.format("Файл %s не найден.", path));
+    } catch (IOException e) {
+      throw new IOException("Произошла неожиданная ошибка во время работы с файлом!");
+    }
+  }
+}