fix: added implementations

2026-04-25 12:31:58 +03:30
parent 5473658dc8
commit 406da4c211
5 changed files with 477 additions and 129 deletions
@@ -4,6 +4,7 @@ import com.google.gson.*;
 import com.google.gson.reflect.TypeToken;

 import java.io.IOException;
+import java.net.HttpURLConnection;
 import java.net.URI;
 import java.net.http.HttpClient;
 import java.net.http.HttpRequest;
@@ -12,65 +13,74 @@ import java.lang.reflect.Type;
 import java.util.ArrayList;
 import java.util.List;

-public class MovieService {
-
+public class MovieService
+{
    private final static String GENRES_URL = "https://api.meshcomp.ir/api/v1/genres";
    private final static String MOVIE_BY_ID_URL = "https://api.meshcomp.ir/api/v1/movies/";
    private final static HttpClient client = HttpClient.newHttpClient();

-    private String getGenresList() {
-        try {
-            HttpRequest request = HttpRequest.newBuilder()
-                    .uri(URI.create(GENRES_URL))
-                    .build();
+    private String getGenresList()
+    {
+        try
+        {
+            HttpRequest request = HttpRequest.newBuilder().uri(URI.create(GENRES_URL)).build();

            HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());

-            if (response.statusCode() == 200) {
+            if (response.statusCode() == 200)
+            {
                System.out.println("Genres List received successfully");
                return response.body();
-            } else {
-                throw new IOException("HTTP error code: " + response.statusCode());
            }
-        } catch (Exception e) {
+            else
+                throw new IOException("HTTP error code: " + response.statusCode());
+        }
+        catch (Exception e)
+        {
            System.out.println("!!Exception : " + e.getMessage());
        }
+
        return null;
    }

-    private String getMoviesByGenreList(Long genreId, Long page) {
-        try {
+    private String getMoviesByGenreList(Long genreId, Long page)
+    {
+        try
+        {
            String url = "https://api.meshcomp.ir/api/v1/genres/" + genreId + "/movies?page=" + page;

-            HttpRequest request = HttpRequest.newBuilder()
-                    .uri(URI.create(url))
-                    .build();
+            HttpRequest request = HttpRequest.newBuilder().uri(URI.create(url)).build();

            HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());

-            if (response.statusCode() == 200) {
+            if (response.statusCode() == 200)
                return response.body();
-            } else {
+            else
+            {
                System.out.println("HTTP error code: " + response.statusCode());
                return null;
            }
-        } catch (Exception e) {
+        }
+        catch (Exception e)
+        {
            System.out.println("!!Exception : " + e.getMessage());
        }
+
        return null;
    }

-
-
-    public void displayGenres() {
+    public void displayGenres()
+    {
        String jsonResponse = getGenresList();

-        if (jsonResponse == null) {
+        if (jsonResponse == null)
+        {
            System.out.println("Failed to get genres");
            return;
        }

-        try {
+        try
+        {
            JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject();
            JsonArray genresArray = rootObject.getAsJsonArray("genres");
            Type genreListType = new TypeToken<ArrayList<Genre>>(){}.getType();
@@ -78,17 +88,19 @@ public class MovieService {
            List<Genre> genres = gson.fromJson(genresArray, genreListType);

            System.out.println("\nALL GENRES:");
-            for (Genre genre : genres) {
+            for (Genre genre : genres)
                System.out.println(genre.getId() + ". " + genre.getName());
-            }
+
            System.out.println();
-        } catch (Exception e) {
+        }
+        catch (Exception e)
+        {
            System.err.println("ERROR parsing genres: " + e.getMessage());
        }
    }

    /**
-     * TODO 1: Display movies for a specific genre and page
+     * Display movies for a specific genre and page
     *
     * JSON format: { "movies": [ { "id": 1, "title": "Movie", "year": "1994" } ], "total": 177, "total_pages": 18 }
     *
@@ -101,13 +113,30 @@ public class MovieService {
     *
     * 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
+    public void displayMoviesByGenre(Long genreId, Long page)
+    {
+        try
+        {
+            String RawData = getMoviesByGenreList(genreId, page);
+            if (RawData == null)
+                throw new IllegalArgumentException("Invalid genreId or page number; no data found");

-        } catch (Exception e) {
+            JsonObject JsonData = JsonParser.parseString(RawData).getAsJsonObject();
+            JsonArray MoviesArray = JsonData.getAsJsonArray("movies");
+            Type MovieListType = new TypeToken<ArrayList<Movie>>(){}.getType();
+            Gson GsonHandle = new Gson();
+            List<Movie> Movies = GsonHandle.fromJson(MoviesArray, MovieListType);
+
+            System.out.printf("\nMovies with %s genre:\n", JsonData.getAsJsonObject("genre").get("name").getAsString());
+            for (Movie CurrentMovie : Movies)
+                System.out.printf("ID: %d | %s (%s)\n", CurrentMovie.getId(), CurrentMovie.getTitle(), CurrentMovie.getYear());
+
+            System.out.printf("\nTotal: %s - Total pages: %s", JsonData.get("total").getAsString(), JsonData.get("total_pages").getAsString());
+
+            System.out.println();
+        }
+        catch (Exception e)
+        {
            System.err.println("ERROR: " + e.getMessage());
        }
    }
@@ -117,18 +146,25 @@ public class MovieService {
     * 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;
-            // 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();
+    private String getMovieById(Long movieId)
+    {
+        try
+        {
+            final String URL = MOVIE_BY_ID_URL + movieId;
+
+            HttpRequest Request = HttpRequest.newBuilder().uri(URI.create(URL)).build();
+            HttpResponse<String> Respone = client.send(Request, HttpResponse.BodyHandlers.ofString());
+
+            if (Respone.statusCode() == HttpURLConnection.HTTP_OK)
+                return Respone.body();

            return null;
-        } catch (Exception e) {
+        }
+        catch (Exception e)
+        {
            System.out.println("!!Exception : " + e.getMessage());
        }
+
        return null;
    }
    
@@ -158,30 +194,29 @@ public class MovieService {
     *
     * @param movieId The ID of the movie to display
     */
-    public void displayMovieDetails(Long movieId) {
-        // Step 1: Get JSON response from API
+    public void displayMovieDetails(Long movieId)
+    {
        String jsonResponse = getMovieById(movieId);

-        // Step 2: Check if we got valid data
-        if (jsonResponse == null) {
+        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()
-            // HINT: Use getAsJsonArray("genres") to get genres
-            // HINT: For each genre, use getAsString()
+        try
+        {
+            JsonObject JsonData = JsonParser.parseString(jsonResponse).getAsJsonObject();

-            // Your code here:
+            Gson GsonHandle = new Gson();
+            Type MovieType = new TypeToken<Movie>(){}.getType();
+            Movie RequestedMovie = GsonHandle.fromJson(JsonData, MovieType);

-
-        } catch (Exception e) {
+            System.out.println();
+            System.out.println(RequestedMovie);
+        }
+        catch (Exception e)
+        {
            System.err.println("ERROR parsing movie details: " + e.getMessage());
        }
    }