fix const

api/enums/hosted_provider.py

@@ -0,0 +1,21 @@
+from enum import StrEnum
+
+
+class HostedTrialProvider(StrEnum):
+    """
+    Enum representing hosted model provider names for trial access.
+    """
+
+    ANTHROPIC = "langgenius/anthropic/anthropic"
+    OPENAI = "langgenius/openai/openai"
+    GEMINI = "langgenius/gemini/google"
+    X = "langgenius/x/x"
+    DEEPSEEK = "langgenius/deepseek/deepseek"
+    TONGYI = "langgenius/tongyi/tongyi"
+
+    @property
+    def config_key(self) -> str:
+        """Return the config key used in dify_config (e.g., HOSTED_{config_key}_PAID_ENABLED)."""
+        if self == HostedTrialProvider.X:
+            return "XAI"
+        return self.name

api/services/feature_service.py

@@ -4,6 +4,7 @@ from pydantic import BaseModel, ConfigDict, Field
 
 from configs import dify_config
 from enums.cloud_plan import CloudPlan
+from enums.hosted_provider import HostedTrialProvider
 from services.billing_service import BillingService
 from services.enterprise.enterprise_service import EnterpriseService
 
@@ -170,6 +171,7 @@ class SystemFeatureModel(BaseModel):
     plugin_installation_permission: PluginInstallationPermissionModel = PluginInstallationPermissionModel()
     enable_change_email: bool = True
     plugin_manager: PluginManagerModel = PluginManagerModel()
+    trial_models: list[str] = []
 
 
 class FeatureService:
@@ -225,6 +227,18 @@ class FeatureService:
         system_features.is_allow_register = dify_config.ALLOW_REGISTER
         system_features.is_allow_create_workspace = dify_config.ALLOW_CREATE_WORKSPACE
         system_features.is_email_setup = dify_config.MAIL_TYPE is not None and dify_config.MAIL_TYPE != ""
+        system_features.trial_models = cls._fulfill_trial_models_from_env()
+
+    @classmethod
+    def _fulfill_trial_models_from_env(cls) -> list[str]:
+        return [
+            provider.value
+            for provider in HostedTrialProvider
+            if (
+                getattr(dify_config, f"HOSTED_{provider.config_key}_PAID_ENABLED", False)
+                and getattr(dify_config, f"HOSTED_{provider.config_key}_TRIAL_ENABLED", False)
+            )
+        ]
 
     @classmethod
     def _fulfill_params_from_env(cls, features: FeatureModel):