chore: cleanup auth code

Signed-off-by: Innei <tukon479@gmail.com>

be/apps/core/src/modules/platform/auth/auth.provider.ts

@@ -31,8 +31,6 @@ const logger = createLogger('Auth')
 
 @injectable()
 export class AuthProvider implements OnModuleInit {
-  private instances = new Map<string, Promise<BetterAuthInstance>>()
-
   constructor(
     private readonly config: AuthConfig,
     private readonly drizzleProvider: DrizzleProvider,
@@ -66,21 +64,6 @@ export class AuthProvider implements OnModuleInit {
     }
   }
 
-  private buildCookiePrefix(tenantSlug: string | null): string {
-    if (!tenantSlug) {
-      return 'better-auth'
-    }
-
-    const sanitizedSlug = tenantSlug
-      .trim()
-      .toLowerCase()
-      .replaceAll(/[^a-z0-9_-]/g, '-')
-      .replaceAll(/-+/g, '-')
-      .replaceAll(/^-|-$/g, '')
-
-    return sanitizedSlug ? `better-auth-${sanitizedSlug}` : 'better-auth'
-  }
-
   private async resolveTenantIdOrProvision(tenantSlug: string | null): Promise<string | null> {
     const tenantIdFromContext = this.resolveTenantIdFromContext()
     if (tenantIdFromContext) {
@@ -119,37 +102,7 @@ export class AuthProvider implements OnModuleInit {
     }
   }
 
-  private determineProtocol(host: string, provided: string | null): string {
-    if (provided && (provided === 'http' || provided === 'https')) {
-      return provided
-    }
-    if (host.includes('localhost') || host.startsWith('127.') || host.startsWith('0.0.0.0')) {
-      return 'http'
-    }
-    return 'https'
-  }
-
-  private applyTenantSlugToHost(host: string, fallbackHost: string, tenantSlug: string | null): string {
-    if (!tenantSlug) {
-      return host
-    }
-
-    const [hostName, hostPort] = host.split(':') as [string, string?]
-    if (hostName.startsWith(`${tenantSlug}.`)) {
-      return host
-    }
-
-    const [fallbackName, fallbackPort] = fallbackHost.split(':') as [string, string?]
-    if (hostName !== fallbackName) {
-      return host
-    }
-
-    const portSegment = hostPort ?? fallbackPort
-    return portSegment ? `${tenantSlug}.${fallbackName}:${portSegment}` : `${tenantSlug}.${fallbackName}`
-  }
-
   private buildBetterAuthProvidersForHost(
-    tenantSlug: string | null,
     providers: SocialProvidersConfig,
     oauthGatewayUrl: string | null,
   ): Record<string, { clientId: string; clientSecret: string; redirectUri?: string }> {
@@ -207,11 +160,7 @@ export class AuthProvider implements OnModuleInit {
     options: AuthModuleOptions,
   ): Promise<BetterAuthInstance> {
     const db = this.drizzleProvider.getDb()
-    const socialProviders = this.buildBetterAuthProvidersForHost(
-      tenantSlug,
-      options.socialProviders,
-      options.oauthGatewayUrl,
-    )
+    const socialProviders = this.buildBetterAuthProvidersForHost(options.socialProviders, options.oauthGatewayUrl)
 
     // Use tenant-aware adapter for multi-tenant user/account isolation
     // This ensures that user lookups (by email) and account lookups (by provider)