homework was finished

.gitignore

@@ -0,0 +1,19 @@
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+.idea/
+*.iml
+*.ipr
+*.iws
+
+.classpath
+.project
+.settings/
+
+data/
+*.log
+
+.DS_Store
+Thumbs.db

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>3.2.5</version>
+        <relativePath/>
+    </parent>
+
+    <groupId>com.ironhack</groupId>
+    <artifactId>ironlibrary</artifactId>
+    <version>1.0.0</version>
+    <name>IronLibrary</name>
+    <description>Library Management System - IronHack Unit 3 Homework</description>
+
+    <properties>
+        <java.version>17</java.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+</project>

src/main/java/com/ironhack/Application.java

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+package com.ironhack;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}

src/main/java/com/ironhack/controller/LibraryMenuController.java

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+package com.ironhack.controller;
+
+import com.ironhack.dto.request.AddBookRequest;
+import com.ironhack.dto.request.IssueBookRequest;
+import com.ironhack.dto.response.BookResponse;
+import com.ironhack.dto.response.IssueResponse;
+import com.ironhack.model.MenuOption;
+import com.ironhack.service.LibraryService;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+import java.util.Scanner;
+
+@Component
+@org.springframework.boot.autoconfigure.condition.ConditionalOnProperty(
+        name = "ironlibrary.menu.enabled",
+        havingValue = "true",
+        matchIfMissing = true
+)
+public class LibraryMenuController implements CommandLineRunner {
+
+    private final LibraryService libraryService;
+    private final Scanner scanner;
+
+    public LibraryMenuController(LibraryService libraryService) {
+        this.libraryService = libraryService;
+        this.scanner = new Scanner(System.in);
+    }
+
+    @Override
+    public void run(String... args) {
+        boolean running = true;
+
+        while (running) {
+            displayMenu();
+            try {
+                int choice = readMenuChoice();
+                MenuOption option = MenuOption.fromValue(choice);
+
+                if (option == null) {
+                    System.out.println("Invalid choice. Please select a number from the menu.");
+                    continue;
+                }
+
+                running = handleMenuOption(option);
+            } catch (Exception exception) {
+                System.out.println("Error: " + exception.getMessage());
+            }
+        }
+
+        System.out.println("Thank you for using IronLibrary. Goodbye!");
+    }
+
+    public void displayMenu() {
+        System.out.println();
+        System.out.println("===== IronLibrary Menu =====");
+        System.out.println("1. Add a book");
+        System.out.println("2. Search book by title");
+        System.out.println("3. Search book by category");
+        System.out.println("4. Search book by Author");
+        System.out.println("5. List all books along with author");
+        System.out.println("6. Issue book to student");
+        System.out.println("7. List books by usn");
+        System.out.println("8. List books to be returned today");
+        System.out.println("9. Exit");
+        System.out.print("Enter your choice: ");
+    }
+
+    public int readMenuChoice() {
+        while (!scanner.hasNextInt()) {
+            scanner.next();
+            System.out.print("Invalid input. Please enter a number: ");
+        }
+        int choice = scanner.nextInt();
+        scanner.nextLine();
+        return choice;
+    }
+
+    public boolean handleMenuOption(MenuOption option) {
+        return switch (option) {
+            case ADD_BOOK -> {
+                handleAddBook();
+                yield true;
+            }
+            case SEARCH_BY_TITLE -> {
+                handleSearchByTitle();
+                yield true;
+            }
+            case SEARCH_BY_CATEGORY -> {
+                handleSearchByCategory();
+                yield true;
+            }
+            case SEARCH_BY_AUTHOR -> {
+                handleSearchByAuthor();
+                yield true;
+            }
+            case LIST_ALL_BOOKS -> {
+                handleListAllBooks();
+                yield true;
+            }
+            case ISSUE_BOOK -> {
+                handleIssueBook();
+                yield true;
+            }
+            case LIST_BOOKS_BY_USN -> {
+                handleListBooksByUsn();
+                yield true;
+            }
+            case LIST_BOOKS_DUE_TODAY -> {
+                handleListBooksDueToday();
+                yield true;
+            }
+            case EXIT -> false;
+        };
+    }
+
+    private void handleAddBook() {
+        System.out.print("Enter isbn : ");
+        String isbn = scanner.nextLine();
+        System.out.print("Enter title : ");
+        String title = scanner.nextLine();
+        System.out.print("Enter category : ");
+        String category = scanner.nextLine();
+        System.out.print("Enter Author name : ");
+        String authorName = scanner.nextLine();
+        System.out.print("Enter Author mail : ");
+        String authorEmail = scanner.nextLine();
+        System.out.print("Enter number of books : ");
+        int quantity = readPositiveInteger();
+
+        libraryService.addBook(new AddBookRequest(isbn, title, category, authorName, authorEmail, quantity));
+        System.out.println("Book added successfully.");
+    }
+
+    private void handleSearchByTitle() {
+        System.out.print("Enter title : ");
+        String title = scanner.nextLine();
+        printBookTable(libraryService.searchBooksByTitle(title), false);
+    }
+
+    private void handleSearchByCategory() {
+        System.out.print("Enter category : ");
+        String category = scanner.nextLine();
+        printBookTable(libraryService.searchBooksByCategory(category), false);
+    }
+
+    private void handleSearchByAuthor() {
+        System.out.print("Enter name : ");
+        String authorName = scanner.nextLine();
+        printBookTable(libraryService.searchBooksByAuthor(authorName), false);
+    }
+
+    private void handleListAllBooks() {
+        printBookTable(libraryService.listAllBooksWithAuthors(), true);
+    }
+
+    private void handleIssueBook() {
+        System.out.print("Enter usn : ");
+        String usn = scanner.nextLine();
+        System.out.print("Enter name : ");
+        String name = scanner.nextLine();
+        System.out.print("Enter book ISBN : ");
+        String isbn = scanner.nextLine();
+
+        IssueResponse response = libraryService.issueBookToStudent(new IssueBookRequest(usn, name, isbn));
+        System.out.println();
+        System.out.println(response.getIssueReturnMessage());
+    }
+
+    private void handleListBooksByUsn() {
+        System.out.print("Enter usn : ");
+        String usn = scanner.nextLine();
+        printIssueTable(libraryService.listBooksByUsn(usn));
+    }
+
+    private void handleListBooksDueToday() {
+        printIssueTable(libraryService.listBooksDueToday());
+    }
+
+    public void printBookTable(List<BookResponse> books, boolean includeAuthor) {
+        System.out.println();
+        if (includeAuthor) {
+            System.out.printf("%-24s%-20s%-12s%-16s%-20s%s%n",
+                    "Book ISBN", "Book Title", "Category", "No of Books", "Author name", "Author mail");
+        } else {
+            System.out.printf("%-24s%-20s%-12s%s%n",
+                    "Book ISBN", "Book Title", "Category", "No of Books");
+        }
+
+        for (BookResponse book : books) {
+            if (includeAuthor) {
+                System.out.printf("%-24s%-20s%-12s%-16d%-20s%s%n",
+                        book.getIsbn(),
+                        book.getTitle(),
+                        book.getCategory(),
+                        book.getQuantity(),
+                        book.getAuthorName(),
+                        book.getAuthorEmail());
+            } else {
+                System.out.printf("%-24s%-20s%-12s%d%n",
+                        book.getIsbn(),
+                        book.getTitle(),
+                        book.getCategory(),
+                        book.getQuantity());
+            }
+        }
+    }
+
+    public void printIssueTable(List<IssueResponse> issues) {
+        System.out.println();
+        System.out.printf("%-20s%-16s%s%n", "Book Title", "Student Name", "Return date");
+
+        for (IssueResponse issue : issues) {
+            System.out.printf("%-20s%-16s%s%n",
+                    issue.getBookTitle(),
+                    issue.getStudentName(),
+                    issue.getReturnDate());
+        }
+    }
+
+    private int readPositiveInteger() {
+        while (true) {
+            try {
+                if (!scanner.hasNextInt()) {
+                    scanner.next();
+                    System.out.print("Invalid number. Enter number of books : ");
+                    continue;
+                }
+                int value = scanner.nextInt();
+                scanner.nextLine();
+                if (value <= 0) {
+                    System.out.print("Number must be greater than zero. Enter number of books : ");
+                    continue;
+                }
+                return value;
+            } catch (Exception exception) {
+                scanner.nextLine();
+                System.out.print("Invalid number. Enter number of books : ");
+            }
+        }
+    }
+}