Merge pull request 'develope' (#1) from develope into main

Reviewed-on: f.mirabootalebi/HW-03-oop-and-api#1

README.md

@@ -121,40 +121,64 @@ Understanding: You must be able to explain your implementation
 ## Bonus Tasks ✒️
 1. Fetch and display movie information using movie ID
 
-Implement movie search by ID. User enters an ID, program displays complete movie details.
+In this section, you must implement the ability to search for a movie by its ID. The user enters an ID, and the program displays complete movie details.
 
-### ⚠️ First: Add Missing Fields to Movie Class
-The API returns more data than your current class supports. Add these fields:
-- `actors`, `awards`, `director`, `imdb_id`, `imdb_votes`, `metascore`, `plot`, `rated`, `released`, `runtime`, `type`, `writer`
+Movie Class Fields (already defined):
 
-### Implementation Steps:
+- id (Long) - Movie identifier
 
-1. **Complete `getMovieById(movieId)`**
-   - Build request to: `https://api.meshcomp.ir/api/v1/movies/{movieId}`
-   - If status 200 → return JSON body, else → return null
+- title (String) - Movie title
 
-2. **Complete `displayMovieDetails(movieId)`**
-   - Call `getMovieById()` → check for null
-   - Use Gson to parse JSON to Movie object (after adding fields above)
-   - Print formatted output (see example below)
+- year (String) - Release year
 
-### Example Output:
-```
-           =======================================================================
-                               THE SHAWSHANK REDEMPTION (1994)
-           =======================================================================
-           Rating: 9.3/10  |  Votes: 1,738,596
-           Director: Frank Darabont
-           Cast: Tim Robbins, Morgan Freeman, Bob Gunton, William Sadler
-           Genre: Crime, Drama
-           Runtime: 142 min  |  Rated: R
-           Country: USA  |  Released: 14 Oct 1994
-           Plot: Two imprisoned men bond over a number of years, finding
-           solace and eventual redemption through acts of common decency.
-           Awards: Nominated for 7 Oscars. Another 19 wins & 30 nominations.
-           =======================================================================
+- genres (List<Genre>) - List of genres
+
+- images (String) - Poster image URL
+
+- country (String) - Production country
+
+- imdbRating (String) - IMDB rating
+
+Implementation Steps:
+
+- Build and Send Request (getMovieById method):
+
+      - Create HTTP request to: https://api.meshcomp.ir/api/v1/movies/{movieId}
+
+      - Replace {movieId} with the ID from user
+
+      - Send request and get response
+
+- Handle Response (getMovieById method):
+
+      - If status code is 200, return JSON body
+
+      - Otherwise, print error and return null
+
+- Parse JSON and Create Movie Object (displayMovieDetails method):
+
+      - Parse JSON response to JsonObject
+
+      - Extract all fields: id, title, year, poster, country, imdb_rating
+
+      - Parse "genres" array and convert each to Genre object
+
+      - Create a Movie object with all extracted data
+
+- Display Results (displayMovieDetails method):
+
+      - Print all movie details in a clean format
+
+2. Advanced search (title, genre, year, rating, etc.)
+
+3. Sorting options for movies
+
+4. Save/load favorite movies to/from a file
+
+5. Improved console menu design
+
+6. GUI version using JavaFX
 
-```
 ---
 ## References 📚
 
@@ -178,3 +202,4 @@ Jackson Tutorial:
 ---
 ## Submission ⌛
 Deadline: May 1st (11 Ordibehesht)
+

src/main/java/Rational/Rational.java

@@ -41,9 +41,9 @@ public class Rational {
 
     //  COMPLETED - Instance method: this + other
     public Rational add(Rational other) {
-        int newNumerator = this.numerator * other.denominator + other.numerator * this.denominator;
-        int newDenominator = this.denominator * other.denominator;
-        return new Rational(newNumerator, newDenominator);
+        int newNum = this.numerator * other.denominator + other.numerator * this.denominator;
+        int newDenom = this.denominator * other.denominator;
+        return new Rational(newNum, newDenom);
     }
 
     //  COMPLETED - Static method: r1 + r2
@@ -54,42 +54,53 @@ public class Rational {
     // TODO: Instance method - this - other
     // Formula: a/b - c/d = (a*d - c*b) / (b*d)
     public Rational subtract(Rational other) {
-        // YOUR CODE HERE
-        return null; // Remove this line when implemented
+        int newNum = this.numerator * other.numerator - other.numerator * this.denominator;
+        int newDenom = other.numerator * this.denominator;
+        return new Rational(newNum, newDenom);
     }
 
     // TODO: Static method - r1 - r2
     public static Rational subtract(Rational r1, Rational r2) {
-        // YOUR CODE HERE
-        return null; // Remove this line when implemented
+        int newNum = r1.numerator * r2.denominator - r2.numerator * r1.denominator;
+        int newDenom = r1.denominator * r2.denominator;
+        return new Rational(newNum, newDenom);
     }
 
     // TODO: Instance method - this * other
     // Formula: (a/b) * (c/d) = (a*c) / (b*d)
     public Rational multiply(Rational other) {
-        // YOUR CODE HERE
-        return null; // Remove this line when implemented
+        int newNum = this.numerator * other.numerator;
+        int newDenom = this.denominator * other.denominator;
+        return new Rational(newNum, newDenom);
     }
 
     // TODO: Static method - r1 * r2
     public static Rational multiply(Rational r1, Rational r2) {
-        // YOUR CODE HERE
-        return null; // Remove this line when implemented
+        int newNum = r1.numerator * r2.numerator;
+        int newDenom = r1.denominator * r2.denominator;
+        return new Rational(newNum, newDenom);
     }
 
     // TODO: Instance method - this / other
     // Formula: (a/b) ÷ (c/d) = (a*d) / (b*c)
     public Rational divide(Rational other) {
-        // YOUR CODE HERE
-        // HINT: Division is multiplication by reciprocal
-        // Don't forget to check if other.numerator is zero!
-        return null; // Remove this line when implemented
+        if (other.numerator == 0){
+            throw new ArithmeticException("Cannot divide by zero");
+        }
+        int newNum = this.numerator * other.denominator;
+        int newDenom = this.denominator * other.numerator;
+        return new Rational(newNum, newDenom);
     }
 
     // TODO: Static method - r1 / r2
     public static Rational divide(Rational r1, Rational r2) {
-        // YOUR CODE HERE
-        return null; // Remove this line when implemented
+        if (r2.numerator == 0){
+            throw new ArithmeticException("Cannot divide by zero");
+        }
+        int newNum = r1.numerator * r2.denominator;
+        int newDenom = r1.denominator * r2.numerator;
+
+        return new Rational(newNum, newDenom);
     }
 
     //  PROVIDED - String representation

src/main/java/movie/apis/Main.java

@@ -22,14 +22,18 @@ public class Main {
 
                 case 2:
                     // TODO: Get genre ID and page from user, then call movieService.displayMoviesByGenre()
-
+                    System.out.print("Enter genre ID: ");
+                    Long genreId = scanner.nextLong();
+                    System.out.print("Enter page number: ");
+                    Long page = scanner.nextLong();
+                    movieService.displayMoviesByGenre(genreId, page);
                     break;
 
-
                 case 3:
                     // TODO (BONUS): Get movie ID from user, then call movieService.displayMovieDetails()
-
-
+                    System.out.print("Enter movie ID: ");
+                    Long movieId = scanner.nextLong();
+                    movieService.displayMovieDetails(movieId);
                     break;
 
                 case 0:

src/main/java/movie/apis/Movie.java

@@ -17,8 +17,72 @@ public class Movie {
     private String country;
 
     // TODO: Create a constructor with all fields
+    public Movie(Long id, String title, List<String> genres, List<String> images,
+                 String year, String imdb_rating, String country) {
+        this.id = id;
+        this.title = title;
+        this.genres = genres;
+        this.images = images;
+        this.year = year;
+        this.imdb_rating = imdb_rating;
+        this.country = country;
+    }
 
     // TODO: Create a simple constructor with id and title only
+    public Movie(Long id, String title) {
+        this.id = id;
+        this.title = title;
+    }
+    public Movie() {
+    }
 
     // TODO: Create getters and setters for all fields
+    public Long getId() {
+        return id;
+    }
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public List<String> getGenres() {
+        return genres;
+    }
+    public void setGenres(List<String> genres) {
+        this.genres = genres;
+    }
+
+    public List<String> getImages() {
+        return images;
+    }
+    public void setImages(List<String> images) {
+        this.images = images;
+    }
+
+    public String getYear() {
+        return year;
+    }
+    public void setYear(String year) {
+        this.year = year;
+    }
+
+    public String getImdb_rating() {
+        return imdb_rating;
+    }
+    public void setImdb_rating(String imdb_rating) {
+        this.imdb_rating = imdb_rating;
+    }
+
+    public String getCountry() {
+        return country;
+    }
+    public void setCountry(String country) {
+        this.country = country;
+    }
 }

src/main/java/movie/apis/MovieService.java

@@ -90,8 +90,7 @@ public class MovieService {
     /**
      * TODO 1: Display movies for a specific genre and page
      *
-     * Open this link in your browser (and check Pretty-print checkbox) to view json format:
-     * https://api.meshcomp.ir/api/v1/genres/1/movies
+     * JSON format: { "movies": [ { "id": 1, "title": "Movie", "year": "1994" } ], "total": 177, "total_pages": 18 }
      *
      * Steps:
      * - Call getMoviesByGenreList(genreId, page) to get JSON
@@ -106,7 +105,27 @@ public class MovieService {
         // TODO: Write your code here
         // All parsing code must be inside try-catch
         try {
-            // Your code here
+            String jsonResponse = getMoviesByGenreList(genreId, page);
+
+            if (jsonResponse == null) {
+                System.out.println("No movies found.");
+                return;
+            }
+
+            JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject();
+            JsonArray moviesArray = rootObject.getAsJsonArray("movies");
+
+            for (JsonElement element : moviesArray) {
+                JsonObject movieObject = element.getAsJsonObject();
+                Long id = movieObject.get("id").getAsLong();
+                String title = movieObject.get("title").getAsString();
+                String year = movieObject.get("year").getAsString();
+
+                System.out.println("ID: " + id + " | " + title + " (" + year + ")");
+            }
+
+            System.out.println("Total: " + rootObject.get("total").getAsInt());
+            System.out.println("Total Pages: " + rootObject.get("total_pages").getAsInt());
 
         } catch (Exception e) {
             System.err.println("ERROR: " + e.getMessage());
@@ -121,70 +140,72 @@ public class MovieService {
     private String getMovieById(Long movieId) {
         try {
             // TODO: Complete this method
-            // String url = MOVIE_BY_ID_URL + movieId;
-            // HttpRequest request = HttpRequest.newBuilder().uri(URI.create(url)).build();
-            // HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
-            // if (response.statusCode() == 200) return response.body();
-
+            String url = MOVIE_BY_ID_URL + movieId;
+            HttpRequest request = HttpRequest.newBuilder().uri(URI.create(url)).build();
+            HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
+            if (response.statusCode() == 200){
+                return response.body();
+            }
+            else {
+                System.out.println("Unable to fetch movie details. Status code: " + response.statusCode());
                 return null;
+            }
+
         } catch (Exception e) {
             System.out.println("!!Exception : " + e.getMessage());
         }
         return null;
     }
     
-     /*
-     BONUS TODO: Display complete movie details for a given movie ID
-
-     Open this link in your browser (and check Pretty-print checkbox) to view json format:
-     https://api.meshcomp.ir/api/v1/movies/1
-
-     INSTRUCTIONS:
-     1. Call getMovieById(movieId) to get the JSON response string
-     2. Check if response is null (if yes, print error and return)
-     3. Parse the JSON string to JsonObject (inside try-catch)
-     4. Use Gson to extract all fields from the JSON and map them to your Movie class:
-        - Add missing JSON fields to your Movie class first (actors, awards, director,
-          imdb_id, imdb_votes, metascore, plot, rated, released, runtime, type, writer)
-        - Then use Gson to parse your json string
-     5. Print all movie details in a readable format
-
-     (PUT ALL PARSING CODE INSIDE THE EXISTING try-catch)
+    /**
+     * BONUS TODO: Display complete movie details for a given movie ID
+     *
+     * Expected JSON format from getMovieById():
+     * {
+     *   "id": 1,
+     *   "title": "The Shawshank Redemption",
+     *   "year": "1994",
+     *   "genres": ["Crime", "Drama"],
+     *   "poster": "https://moviesapi.ir/images/tt0111161_poster.jpg",
+     *   "country": "USA",
+     *   "imdb_rating": "9.3"
+     * }
+     *
+     * INSTRUCTIONS:
+     * 1. Call getMovieById(movieId) to get the JSON response
+     * 2. Check if response is null (if yes, print error and return)
+     * 3. Parse the JSON string to JsonObject (inside try-catch)
+     * 4. Extract all fields: id, title, year, genres array, poster, country, imdb_rating
+     * 5. Convert genres array to comma-separated string
+     * 6. Print all movie details in a readable format
+     *
+     * PUT ALL PARSING CODE INSIDE THE EXISTING try-catch
+     *
+     * @param movieId The ID of the movie to display
      */
-
-    /* EXAMPLE OUTPUT:
-
-           =======================================================================
-                               THE SHAWSHANK REDEMPTION (1994)
-           =======================================================================
-           Rating: 9.3/10  |  Votes: 1,738,596
-           Director: Frank Darabont
-           Cast: Tim Robbins, Morgan Freeman, Bob Gunton, William Sadler
-           Genre: Crime, Drama
-           Runtime: 142 min  |  Rated: R
-           Country: USA  |  Released: 14 Oct 1994
-           Plot: Two imprisoned men bond over a number of years, finding
-           solace and eventual redemption through acts of common decency.
-           Awards: Nominated for 7 Oscars. Another 19 wins & 30 nominations.
-           =======================================================================
-
-     */
-
     public void displayMovieDetails(Long movieId) {
         // Step 1: Get JSON response from API
         String jsonResponse = getMovieById(movieId);
 
         // Step 2: Check if we got valid data
-        // Step 3-5: Parse JSON and display details (PUT YOUR CODE INSIDE try-catch)
         if (jsonResponse == null) {
             System.out.println("Failed to get movie details for ID: " + movieId);
             return;
         }
+
+        // Step 3-6: Parse JSON and display details (PUT YOUR CODE INSIDE try-catch)
         try {
             // TODO: Parse jsonResponse to JsonObject
+            // TODO: Extract id, title, year, genres array, poster, country, imdb_rating
+            // TODO: Convert genres array to a readable string
+            // TODO: Print all movie details
             // HINT: Use JsonParser.parseString(jsonResponse).getAsJsonObject()
-            // TODO: use Gson to parse the json
+            // HINT: Use getAsJsonArray("genres") to get genres
+            // HINT: For each genre, use getAsString()
+
             // Your code here:
+
+
         } catch (Exception e) {
             System.err.println("ERROR parsing movie details: " + e.getMessage());
         }