init: hgmj server initial commit

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

common/media/media_content_dedup_test.go

@@ -0,0 +1,76 @@
+package mediaService
+
+import (
+	"testing"
+
+	"91jd-server/models/v/mediacontentmod"
+	"91jd-server/models/v/mediamod"
+
+	"go.mongodb.org/mongo-driver/bson/primitive"
+)
+
+func TestFindExistingMediaContentDramaFallsBackToEpisodeNumber(t *testing.T) {
+	mediaID := primitive.NewObjectID()
+	existing := mediacontentmod.MediaContent{
+		ID:            primitive.NewObjectID(),
+		MediaID:       mediaID,
+		EpisodeNumber: 3,
+		HashId:        "old-hash",
+	}
+	episodeLookupCalled := false
+
+	got, hashChanged, err := findExistingMediaContent(
+		mediaID,
+		mediamod.MediaTypeDrama,
+		"new-hash",
+		3,
+		func(primitive.ObjectID, string) (mediacontentmod.MediaContent, error) {
+			return mediacontentmod.MediaContent{}, mediacontentmod.MediaContentNotFound
+		},
+		func(gotMediaID primitive.ObjectID, gotEpisodeNumber int) (mediacontentmod.MediaContent, error) {
+			episodeLookupCalled = true
+			if gotMediaID != mediaID || gotEpisodeNumber != 3 {
+				t.Fatalf("episode lookup = (%s, %d), want (%s, 3)", gotMediaID, gotEpisodeNumber, mediaID)
+			}
+			return existing, nil
+		},
+	)
+	if err != nil {
+		t.Fatalf("findExistingMediaContent returned error: %v", err)
+	}
+	if !episodeLookupCalled {
+		t.Fatal("episode fallback was not called")
+	}
+	if !hashChanged {
+		t.Fatal("hashChanged = false, want true")
+	}
+	if got.ID != existing.ID {
+		t.Fatalf("content ID = %s, want %s", got.ID, existing.ID)
+	}
+}
+
+func TestFindExistingMediaContentNonDramaDoesNotFallback(t *testing.T) {
+	episodeLookupCalled := false
+	_, hashChanged, err := findExistingMediaContent(
+		primitive.NewObjectID(),
+		"video",
+		"new-hash",
+		3,
+		func(primitive.ObjectID, string) (mediacontentmod.MediaContent, error) {
+			return mediacontentmod.MediaContent{}, mediacontentmod.MediaContentNotFound
+		},
+		func(primitive.ObjectID, int) (mediacontentmod.MediaContent, error) {
+			episodeLookupCalled = true
+			return mediacontentmod.MediaContent{}, nil
+		},
+	)
+	if err != mediacontentmod.MediaContentNotFound {
+		t.Fatalf("error = %v, want MediaContentNotFound", err)
+	}
+	if hashChanged {
+		t.Fatal("hashChanged = true, want false")
+	}
+	if episodeLookupCalled {
+		t.Fatal("non-drama content used episode fallback")
+	}
+}