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import json
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import logging
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from os import path
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from typing import Optional
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import requests
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from flask import current_app
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from constants.languages import languages
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from extensions.ext_database import db
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from models.model import App, RecommendedApp
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from services.app_service import AppService
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logger = logging.getLogger(__name__)
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class RecommendedAppService:
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builtin_data: Optional[dict] = None
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@classmethod
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def get_recommended_apps_and_categories(cls, language: str) -> dict:
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"""
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Get recommended apps and categories.
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:param language: language
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:return:
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"""
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mode = current_app.config.get('HOSTED_FETCH_APP_TEMPLATES_MODE', 'remote')
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if mode == 'remote':
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try:
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result = cls._fetch_recommended_apps_from_dify_official(language)
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except Exception as e:
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logger.warning(f'fetch recommended apps from dify official failed: {e}, switch to built-in.')
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result = cls._fetch_recommended_apps_from_builtin(language)
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elif mode == 'db':
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result = cls._fetch_recommended_apps_from_db(language)
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elif mode == 'builtin':
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result = cls._fetch_recommended_apps_from_builtin(language)
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else:
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raise ValueError(f'invalid fetch recommended apps mode: {mode}')
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if not result.get('recommended_apps') and language != 'en-US':
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result = cls._fetch_recommended_apps_from_builtin('en-US')
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return result
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@classmethod
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def _fetch_recommended_apps_from_db(cls, language: str) -> dict:
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"""
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Fetch recommended apps from db.
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:param language: language
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:return:
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"""
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recommended_apps = db.session.query(RecommendedApp).filter(
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RecommendedApp.is_listed == True,
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RecommendedApp.language == language
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).all()
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if len(recommended_apps) == 0:
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recommended_apps = db.session.query(RecommendedApp).filter(
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RecommendedApp.is_listed == True,
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RecommendedApp.language == languages[0]
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).all()
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categories = set()
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recommended_apps_result = []
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for recommended_app in recommended_apps:
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app = recommended_app.app
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if not app or not app.is_public:
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continue
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site = app.site
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if not site:
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continue
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recommended_app_result = {
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'id': recommended_app.id,
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'app': {
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'id': app.id,
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'name': app.name,
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'mode': app.mode,
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'icon': app.icon,
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'icon_background': app.icon_background
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},
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'app_id': recommended_app.app_id,
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'description': site.description,
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'copyright': site.copyright,
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'privacy_policy': site.privacy_policy,
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'custom_disclaimer': site.custom_disclaimer,
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'category': recommended_app.category,
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'position': recommended_app.position,
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'is_listed': recommended_app.is_listed
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}
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recommended_apps_result.append(recommended_app_result)
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categories.add(recommended_app.category)
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return {'recommended_apps': recommended_apps_result, 'categories': sorted(list(categories))}
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@classmethod
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def _fetch_recommended_apps_from_dify_official(cls, language: str) -> dict:
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"""
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Fetch recommended apps from dify official.
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:param language: language
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:return:
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"""
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domain = current_app.config.get('HOSTED_FETCH_APP_TEMPLATES_REMOTE_DOMAIN', 'https://tmpl.dify.ai')
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url = f'{domain}/apps?language={language}'
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response = requests.get(url, timeout=(3, 10))
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if response.status_code != 200:
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raise ValueError(f'fetch recommended apps failed, status code: {response.status_code}')
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return response.json()
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@classmethod
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def _fetch_recommended_apps_from_builtin(cls, language: str) -> dict:
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"""
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Fetch recommended apps from builtin.
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:param language: language
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:return:
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"""
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builtin_data = cls._get_builtin_data()
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return builtin_data.get('recommended_apps', {}).get(language)
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@classmethod
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def get_recommend_app_detail(cls, app_id: str) -> Optional[dict]:
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"""
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Get recommend app detail.
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:param app_id: app id
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:return:
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"""
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mode = current_app.config.get('HOSTED_FETCH_APP_TEMPLATES_MODE', 'remote')
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if mode == 'remote':
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try:
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result = cls._fetch_recommended_app_detail_from_dify_official(app_id)
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except Exception as e:
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logger.warning(f'fetch recommended app detail from dify official failed: {e}, switch to built-in.')
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result = cls._fetch_recommended_app_detail_from_builtin(app_id)
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elif mode == 'db':
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result = cls._fetch_recommended_app_detail_from_db(app_id)
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elif mode == 'builtin':
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result = cls._fetch_recommended_app_detail_from_builtin(app_id)
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else:
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raise ValueError(f'invalid fetch recommended app detail mode: {mode}')
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return result
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@classmethod
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def _fetch_recommended_app_detail_from_dify_official(cls, app_id: str) -> Optional[dict]:
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"""
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Fetch recommended app detail from dify official.
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:param app_id: App ID
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:return:
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"""
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domain = current_app.config.get('HOSTED_FETCH_APP_TEMPLATES_REMOTE_DOMAIN', 'https://tmpl.dify.ai')
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url = f'{domain}/apps/{app_id}'
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response = requests.get(url, timeout=(3, 10))
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if response.status_code != 200:
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return None
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return response.json()
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@classmethod
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def _fetch_recommended_app_detail_from_db(cls, app_id: str) -> Optional[dict]:
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"""
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Fetch recommended app detail from db.
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:param app_id: App ID
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:return:
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"""
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recommended_app = db.session.query(RecommendedApp).filter(
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RecommendedApp.is_listed == True,
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RecommendedApp.app_id == app_id
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).first()
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if not recommended_app:
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return None
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app_model = db.session.query(App).filter(App.id == app_id).first()
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if not app_model or not app_model.is_public:
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return None
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app_service = AppService()
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export_str = app_service.export_app(app_model)
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return {
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'id': app_model.id,
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'name': app_model.name,
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'icon': app_model.icon,
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'icon_background': app_model.icon_background,
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'mode': app_model.mode,
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'export_data': export_str
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}
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@classmethod
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def _fetch_recommended_app_detail_from_builtin(cls, app_id: str) -> Optional[dict]:
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"""
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Fetch recommended app detail from builtin.
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:param app_id: App ID
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:return:
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"""
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builtin_data = cls._get_builtin_data()
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return builtin_data.get('app_details', {}).get(app_id)
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@classmethod
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def _get_builtin_data(cls) -> dict:
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"""
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Get builtin data.
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:return:
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"""
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if cls.builtin_data:
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return cls.builtin_data
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root_path = current_app.root_path
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with open(path.join(root_path, 'constants', 'recommended_apps.json'), encoding='utf-8') as f:
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json_data = f.read()
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data = json.loads(json_data)
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cls.builtin_data = data
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return cls.builtin_data
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@classmethod
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def fetch_all_recommended_apps_and_export_datas(cls):
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"""
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Fetch all recommended apps and export datas
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:return:
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"""
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templates = {
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"recommended_apps": {},
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"app_details": {}
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}
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for language in languages:
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try:
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result = cls._fetch_recommended_apps_from_dify_official(language)
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except Exception as e:
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logger.warning(f'fetch recommended apps from dify official failed: {e}, skip.')
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continue
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templates['recommended_apps'][language] = result
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for recommended_app in result.get('recommended_apps'):
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app_id = recommended_app.get('app_id')
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app_detail = cls._fetch_recommended_app_detail_from_dify_official(app_id)
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if not app_detail:
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continue
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templates['app_details'][app_id] = app_detail
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return templates
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