Implement genre synchronization from MAL via Jikan API and add genre retrieval endpoint

2 files changed, 96 insertions, 0 deletions

diff --git a/tasks/genre_sync.task.go b/tasks/genre_sync.task.go
new file mode 100644
index 0000000..e240833
--- /dev/null
+++ b/tasks/genre_sync.task.go
@@ -0,0 +1,82 @@
+package tasks
+
+import (
+	"fmt"
+	"metachan/database"
+	"metachan/entities"
+	"metachan/utils/api/jikan"
+	"metachan/utils/logger"
+)
+
+// GenreSync synchronizes genre data from MAL via Jikan API
+func GenreSync() error {
+	logger.Log("Starting Genre Sync from MAL", logger.LogOptions{
+		Level:  logger.Info,
+		Prefix: "GenreSync",
+	})
+
+	// Create Jikan client
+	client := jikan.NewJikanClient()
+
+	// Wait for rate limit
+	client.WaitForRateLimit()
+
+	// Fetch genres from Jikan API
+	genresResponse, err := client.GetAnimeGenres()
+	if err != nil {
+		logger.Log(fmt.Sprintf("Failed to fetch genres from MAL: %v", err), logger.LogOptions{
+			Level:  logger.Error,
+			Prefix: "GenreSync",
+		})
+		return err
+	}
+
+	logger.Log(fmt.Sprintf("Fetched %d genres from MAL", len(genresResponse.Data)), logger.LogOptions{
+		Level:  logger.Info,
+		Prefix: "GenreSync",
+	})
+
+	// Update or create genres in database
+	for _, genre := range genresResponse.Data {
+		// Create a genre entry with AnimeID = 0 to indicate it's a master genre
+		genreEntity := entities.AnimeGenre{
+			AnimeID: 0, // Master genre, not tied to specific anime
+			GenreID: genre.MALID,
+			Name:    genre.Name,
+			URL:     genre.URL,
+			Count:   genre.Count,
+		}
+
+		// Update or create
+		var existing entities.AnimeGenre
+		result := database.DB.Where("genre_id = ? AND anime_id = 0", genre.MALID).First(&existing)
+
+		if result.Error == nil {
+			// Update existing
+			existing.Name = genre.Name
+			existing.URL = genre.URL
+			existing.Count = genre.Count
+			if err := database.DB.Save(&existing).Error; err != nil {
+				logger.Log(fmt.Sprintf("Failed to update genre %s: %v", genre.Name, err), logger.LogOptions{
+					Level:  logger.Warn,
+					Prefix: "GenreSync",
+				})
+			}
+		} else {
+			// Create new
+			if err := database.DB.Create(&genreEntity).Error; err != nil {
+				logger.Log(fmt.Sprintf("Failed to create genre %s: %v", genre.Name, err), logger.LogOptions{
+					Level:  logger.Warn,
+					Prefix: "GenreSync",
+				})
+			}
+		}
+	}
+
+	logger.Log("Genre Sync completed successfully", logger.LogOptions{
+		Level:  logger.Success,
+		Prefix: "GenreSync",
+	})
+
+	return nil
+}
diff --git a/tasks/tasks.go b/tasks/tasks.go
index 29054e8..b6b913a 100644
--- a/tasks/tasks.go
+++ b/tasks/tasks.go
@@ -47,4 +47,18 @@ func init() {
 			Prefix: "TaskManager",
 		})
 	}
+
+	// Register GenreSync task (every 7 days)
+	err = GlobalTaskManager.RegisterTask(types.Task{
+		Name:     "GenreSync",
+		Interval: 7 * 24 * time.Hour,
+		Execute:  GenreSync,
+	})
+
+	if err != nil {
+		logger.Log(fmt.Sprintf("Failed to register GenreSync task: %v", err), logger.LogOptions{
+			Level:  logger.Error,
+			Prefix: "TaskManager",
+		})
+	}
 }