complete MovieService class

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

@@ -11,6 +11,8 @@ import java.net.http.HttpResponse;
 import java.lang.reflect.Type;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Scanner;
+import java.util.InputMismatchException;
 
 public class MovieService {
 
@@ -87,105 +89,257 @@ public class MovieService {
         }
     }
 
-    /**
+    public List<Movie> parseMoviesFromJson(String json)
-     * TODO 1: Display movies for a specific genre and page
+    {
-     *
+        if (json == null || json.isEmpty())
-     * Open this link in your browser (and check Pretty-print checkbox) to view json format:
+        {
-     * https://api.meshcomp.ir/api/v1/genres/1/movies
+            return new ArrayList<>();
-     *
+        }
-     * Steps:
+        Gson gson = new Gson();
-     * - Call getMoviesByGenreList(genreId, page) to get JSON
+        Type listType = new TypeToken<ArrayList<Movie>>() {}.getType();
-     * - Parse JSON to JsonObject
+        return gson.fromJson(json, listType);
-     * - Get "movies" array (NOT "data")
+    }
-     * - Loop through array and print: "ID: {id} | {title} ({year})"
-     * - Also print total and total_pages
-     *
-     * PUT ALL PARSING CODE INSIDE try-catch
-     */
-    public void displayMoviesByGenre(Long genreId, Long page) {
-        // TODO: Write your code here
-        // All parsing code must be inside try-catch
-        try {
-            // Your code here
 
-        } catch (Exception e) {
+
-            System.err.println("ERROR: " + e.getMessage());
+    public void displayListOfMovies()
+    {
+        Scanner scanner = new Scanner(System.in);
+        Long selectedGenreId = null;
+        System.out.println("---Select a genre---");
+        displayGenres();
+        System.out.println("Enter the genre ID to view movies or 0 to exit: ");
+        try
+        {
+            if (scanner.hasNextLong())
+            {
+                selectedGenreId = scanner.nextLong();
+            }
+            else
+            {
+                System.out.println("Invalid! Enter a number.");
+                return;
+            }
+        }
+        catch (InputMismatchException e)
+        {
+            System.out.println("Invalid input. Please enter a number.");
+            scanner.next();
+            return;
+        }
+
+        if (selectedGenreId == 0)
+        {
+            return;
+        }
+
+        System.out.println("----Movies for genre ID: " + selectedGenreId + "----");
+        Long page = 1L;
+        try
+        {
+            String json = getMoviesByGenreList(selectedGenreId, page);
+            if (json == null || json.isEmpty())
+            {
+                System.out.println("No movies found.");
+                return;
+            }
+            JsonObject rootObject = JsonParser.parseString(json).getAsJsonObject();
+            JsonArray moviesArray = rootObject.getAsJsonArray("movies");
+            if (moviesArray == null || moviesArray.isEmpty())
+            {
+                System.out.println("No movies found.");
+                return;
+            }
+            Gson gson = new Gson();
+            Type listType = new TypeToken<ArrayList<Movie>>() {}.getType();
+            List<Movie> movies = gson.fromJson(moviesArray, listType);
+
+            if (movies != null && !movies.isEmpty())
+            {
+                for (Movie movie : movies)
+                {
+                    System.out.println("ID: " + movie.getId() + " | " + movie.getTitle() + " (" + movie.getYear() + ")");
+                }
+            }
+            else
+            {
+                System.out.println("No movies found for this genre.");
+            }
+        }
+        catch (Exception e)
+        {
+            System.err.println("ERROR displaying movies: " + e.getMessage());
+            e.printStackTrace();
+        }
+    }
+
+    public void displayMoviesByGenre(Long genreId, Long page) {
+        try
+        {
+            String json = getMoviesByGenreList(genreId, page);
+            JsonObject rootObject = JsonParser.parseString(json).getAsJsonObject();
+            JsonArray moviesArray = rootObject.getAsJsonArray("movies");
+            if (moviesArray == null || moviesArray.isEmpty())
+            {
+                System.out.println("No movies found for this genre/page.");
+                return;
+            }
+            Gson gson = new Gson();
+            Type listType = new TypeToken<ArrayList<Movie>>() {}.getType();
+            List<Movie> movies = gson.fromJson(moviesArray, listType);
+            if (rootObject.has("total"))
+            {
+                int total = rootObject.get("total").getAsInt();
+                System.out.println("Total movies: " + total);
+            }
+            if (rootObject.has("total_pages"))
+            {
+                int totalPages = rootObject.get("total_pages").getAsInt();
+                System.out.println("Total pages: " + totalPages);
+            }
+
+            System.out.println("\n====================");
+            for (Movie movie: movies)
+            {
+                System.out.println("ID: " + movie.getId() + " | " + movie.getTitle() + " (" + movie.getYear() + ")");
+            }
+            System.out.println("--------------------\n");
+        }
+        catch (Exception e)
+        {
+            System.err.println("ERROR parsing movie list: " + e.getMessage());
+            e.printStackTrace();
         }
     }
 
 
-    /**
-     * BONUS: Fetch movie details from API using movie ID
-     * URL format: https://api.meshcomp.ir/api/v1/movies/{movieId}
-     */
     private String getMovieById(Long movieId) {
         try {
-            // TODO: Complete this method
+            String url = MOVIE_BY_ID_URL + movieId;
-            // String url = MOVIE_BY_ID_URL + movieId;
+            HttpRequest request = HttpRequest.newBuilder()
-            // HttpRequest request = HttpRequest.newBuilder().uri(URI.create(url)).build();
+                    .uri(URI.create(url))
-            // HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
+                    .build();
-            // if (response.statusCode() == 200) return response.body();
+            HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
-
+            if (response.statusCode() == 200) {
-            return null;
+                return response.body();
+            } else
+            {
+                System.out.println("HTTP error code for movie ID " + movieId + ": " + 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)
-     */
-
-    /* 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;
         }
         try {
-            // TODO: Parse jsonResponse to JsonObject
+            JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject();
-            // HINT: Use JsonParser.parseString(jsonResponse).getAsJsonObject()
+
-            // TODO: use Gson to parse the json
+            Movie movie;
-            // Your code here:
+            if (rootObject.has("movie"))
-        } catch (Exception e) {
+            {
+                String movieJson = rootObject.get("movie").toString();
+                movie = new Gson().fromJson(movieJson, Movie.class);
+            } else
+            {
+                movie = new Gson().fromJson(jsonResponse, Movie.class);
+            }
+
+            if (movie == null)
+            {
+                System.err.println("Error: Movie object could not be parsed.");
+                return;
+            }
+
+            int width = 60;
+            String title = (movie.getTitle() != null ? movie.getTitle() : "Unknown Title");
+            String year = (movie.getYear() != null ? movie.getYear() : "");
+            String titleYear = title + (year.isEmpty() ? "" : " (" + year + ")");
+
+            if (titleYear.length() > width) {
+                width = titleYear.length() + 10;
+            }
+
+            int totalPadding = width - titleYear.length();
+            int leftPadding = totalPadding / 2;
+            int rightPadding = totalPadding - leftPadding;
+
+            String centeredTitle = " ".repeat(leftPadding) + titleYear.toUpperCase() + " ".repeat(rightPadding);
+
+            System.out.println("=============================================================");
+            System.out.println(centeredTitle);
+            System.out.println("=============================================================");
+            if (movie.getImdb_rating() != null && !movie.getImdb_rating().isEmpty())
+            {
+                try
+                {
+                    double rating = Double.parseDouble(movie.getImdb_rating());
+                    System.out.printf("Rating: %.1f/10", rating);
+
+                    if (movie.getImdb_votes() != null && !movie.getImdb_votes().isEmpty())
+                    {
+                        String votesStr = movie.getImdb_votes().replace(",", "");
+                        long votes = Long.parseLong(votesStr);
+                        System.out.printf("  |  Votes: %,d%n", votes);
+                    } else
+                    {
+                        System.out.println();
+                    }
+                } catch (NumberFormatException e)
+                {
+                    System.out.println("Rating: " + movie.getImdb_rating() + " (Format Error)");
+                }
+            } else
+            {
+                System.out.println("Rating: N/A");
+            }
+            if (movie.getDirector() != null)
+            {
+                System.out.println("Director: " + movie.getDirector());
+            }
+            if (movie.getActors() != null)
+            {
+                System.out.println("Cast: " + movie.getActors());
+            }
+            if (movie.getGenres() != null && !movie.getGenres().isEmpty())
+            {
+                String genresStr = String.join(" , ", movie.getGenres());
+                System.out.println("Genre: " + genresStr);
+            } else
+            {
+                System.out.println("Genre: N/A");
+            }
+            if (movie.getRuntime() != null)
+            {
+                System.out.println("Runtime: " + movie.getRuntime() + " | Rated: " + movie.getRated());
+            }
+            if (movie.getCountry() != null)
+            {
+                System.out.println("Country: " + movie.getCountry() + " | Released: " + movie.getReleased());
+            }
+            if (movie.getPlot() != null)
+            {
+                System.out.println("Plot: " + movie.getPlot());
+            }
+            if (movie.getAwards() != null)
+            {
+                System.out.println("Awards: " + movie.getAwards());
+            }
+
+
+
+            System.out.println("=======================================================================");
+
+        } catch (Exception e)
+        {
             System.err.println("ERROR parsing movie details: " + e.getMessage());
         }
     }