dify/api/services/feature_service.py

from flask import current_app
from pydantic import BaseModel
from services.billing_service import BillingService


class SubscriptionModel(BaseModel):
    plan: str = 'sandbox'
    interval: str = ''


class BillingModel(BaseModel):
    enabled: bool = False
    subscription: SubscriptionModel = SubscriptionModel()


class LimitationModel(BaseModel):
    size: int = 0
    limit: int = 0


class FeatureModel(BaseModel):
    billing: BillingModel = BillingModel()
    members: LimitationModel = LimitationModel(size=0, limit=1)
    apps: LimitationModel = LimitationModel(size=0, limit=10)
    vector_space: LimitationModel = LimitationModel(size=0, limit=5)
    annotation_quota_limit: LimitationModel = LimitationModel(size=0, limit=10)
    docs_processing: str = 'standard'
    can_replace_logo: bool = False


class FeatureService:

    @classmethod
    def get_features(cls, tenant_id: str) -> FeatureModel:
        features = FeatureModel()

        cls._fulfill_params_from_env(features)

        if current_app.config['BILLING_ENABLED']:
            cls._fulfill_params_from_billing_api(features, tenant_id)

        return features

    @classmethod
    def _fulfill_params_from_env(cls, features: FeatureModel):
        features.can_replace_logo = current_app.config['CAN_REPLACE_LOGO']

    @classmethod
    def _fulfill_params_from_billing_api(cls, features: FeatureModel, tenant_id: str):
        billing_info = BillingService.get_info(tenant_id)

        features.billing.enabled = billing_info['enabled']
        features.billing.subscription.plan = billing_info['subscription']['plan']
        features.billing.subscription.interval = billing_info['subscription']['interval']

        features.members.size = billing_info['members']['size']
        features.members.limit = billing_info['members']['limit']

        features.apps.size = billing_info['apps']['size']
        features.apps.limit = billing_info['apps']['limit']

        features.vector_space.size = billing_info['vector_space']['size']
        features.vector_space.limit = billing_info['vector_space']['limit']

        features.annotation_quota_limit.size = billing_info['annotation_quota_limit']['size']
        features.annotation_quota_limit.limit = billing_info['annotation_quota_limit']['limit']

        features.docs_processing = billing_info['docs_processing']
        features.can_replace_logo = billing_info['can_replace_logo']