feat(auth): per-org OIDC resolver replaces global provider

server/internal/services/org_oidc.go

@@ -0,0 +1,52 @@
+package services
+
+import (
+	"context"
+	"time"
+
+	"github.com/mrhid6/vantage/server/internal/db"
+	"github.com/mrhid6/vantage/server/internal/models"
+	"go.mongodb.org/mongo-driver/v2/bson"
+	"go.mongodb.org/mongo-driver/v2/mongo/options"
+)
+
+func GetOrgOIDC(orgID string) (*models.OrgOIDC, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	var o models.OrgOIDC
+	err := db.Col("org_oidc").FindOne(ctx, bson.M{"org_id": orgID}).Decode(&o)
+	if err != nil {
+		return nil, err
+	}
+	return &o, nil
+}
+
+func GetOrgOIDCSecret(orgID string) (string, error) {
+	o, err := GetOrgOIDC(orgID)
+	if err != nil {
+		return "", err
+	}
+	return decryptString(o.ClientSecretEnc)
+}
+
+// SaveOrgOIDC upserts the org's provider config. An empty clientSecret keeps the
+// stored secret (so the UI need not resend it).
+func SaveOrgOIDC(orgID, issuer, clientID, clientSecret string, enabled bool) error {
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	set := bson.M{
+		"org_id": orgID, "issuer": issuer, "client_id": clientID,
+		"enabled": enabled, "updated_at": time.Now(),
+	}
+	if clientSecret != "" {
+		enc, err := encryptString(clientSecret)
+		if err != nil {
+			return err
+		}
+		set["client_secret_enc"] = enc
+	}
+	_, err := db.Col("org_oidc").UpdateOne(ctx,
+		bson.M{"org_id": orgID}, bson.M{"$set": set},
+		options.UpdateOne().SetUpsert(true))
+	return err
+}