config_provider.py

"""
Flare – ConfigProvider (with Provider Abstraction and Multi-language Support)
"""

from __future__ import annotations
import json, os, sys, re
import threading
from pathlib import Path
from typing import Any, Dict, List, Optional, Union
from datetime import datetime
import commentjson
from utils import log
from pydantic import BaseModel, Field, HttpUrl, ValidationError, field_validator, validator
from encryption_utils import decrypt

# ===================== Models =====================
class ProviderConfig(BaseModel):
    """Provider definition with requirements"""
    type: str = Field(..., pattern=r"^(llm|tts|stt)$")
    name: str
    display_name: str
    requires_endpoint: bool = False
    requires_api_key: bool = True
    requires_repo_info: bool = False
    description: Optional[str] = None

class ProviderSettings(BaseModel):
    """Runtime provider settings"""
    name: str
    api_key: Optional[str] = None
    endpoint: Optional[str] = None
    settings: Dict[str, Any] = Field(default_factory=dict)

class LocalizedCaption(BaseModel):
    """Multi-language caption support"""
    locale_code: str
    caption: str

class LocalizedExample(BaseModel):
    """Multi-language example support"""
    locale_code: str
    example: str

class UserConfig(BaseModel):
    username: str
    password_hash: str
    salt: str

class RetryConfig(BaseModel):
    retry_count: int = Field(3, alias="max_attempts")
    backoff_seconds: int = 2
    strategy: str = Field("static", pattern=r"^(static|exponential)$")

class ProxyConfig(BaseModel):
    enabled: bool = True
    url: HttpUrl

class APIAuthConfig(BaseModel):
    enabled: bool = False
    token_endpoint: Optional[HttpUrl] = None
    response_token_path: str = "access_token"
    token_request_body: Dict[str, Any] = Field({}, alias="body_template")
    token_refresh_endpoint: Optional[HttpUrl] = None
    token_refresh_body: Dict[str, Any] = {}

    class Config:
        extra = "allow"
        populate_by_name = True

class APIConfig(BaseModel):
    name: str
    description: Optional[str] = None 
    url: HttpUrl
    method: str = Field("GET", pattern=r"^(GET|POST|PUT|PATCH|DELETE)$")
    headers: Dict[str, Any] = {}
    body_template: Dict[str, Any] = {}
    timeout_seconds: int = 10
    retry: RetryConfig = RetryConfig()
    proxy: Optional[Union[str, ProxyConfig]] = None
    auth: Optional[APIAuthConfig] = None
    response_prompt: Optional[str] = None
    response_mappings: List[Dict[str, Any]] = []
    deleted: bool = False
    last_update_date: Optional[str] = None
    last_update_user: Optional[str] = None
    created_date: Optional[str] = None
    created_by: Optional[str] = None

    class Config:
        extra = "allow"
        populate_by_name = True

class LLMConfig(BaseModel):
    repo_id: str
    generation_config: Dict[str, Any] = {}
    use_fine_tune: bool = False
    fine_tune_zip: str = ""

class VersionConfig(BaseModel):
    no: int  # Tek version numarası alanı
    caption: Optional[str] = ""
    description: Optional[str] = ""
    published: bool = False
    deleted: bool = False
    created_date: Optional[str] = None
    created_by: Optional[str] = None
    last_update_date: Optional[str] = None
    last_update_user: Optional[str] = None
    publish_date: Optional[str] = None
    published_by: Optional[str] = None
    general_prompt: str
    welcome_prompt: Optional[str] = None
    llm: LLMConfig
    intents: List[IntentConfig]

    class Config:
        extra = "allow"

class ProjectConfig(BaseModel):
    id: Optional[int] = None
    name: str
    caption: Optional[str] = ""
    icon: Optional[str] = "folder"
    description: Optional[str] = ""
    enabled: bool = True
    version_id_counter: int = 1  # last_version_number yerine sadece bu kullanılacak
    versions: List[VersionConfig]
    default_locale: str = "tr"
    supported_locales: List[str] = ["tr"]
    timezone: Optional[str] = "Europe/Istanbul"
    region: Optional[str] = "tr-TR"
    deleted: bool = False
    created_date: Optional[str] = None
    created_by: Optional[str] = None
    last_update_date: Optional[str] = None
    last_update_user: Optional[str] = None

    class Config:
        extra = "allow"

class ActivityLogEntry(BaseModel):
    timestamp: str
    username: str
    action: str
    entity_type: str
    entity_id: Optional[int] = None
    entity_name: Optional[str] = None
    details: Optional[str] = None
    
class ParameterCollectionConfig(BaseModel):
    """Configuration for smart parameter collection"""
    max_params_per_question: int = Field(default=2, ge=1, le=5)
    retry_unanswered: bool = Field(default=True)
    collection_prompt: str = Field(default="""
You are a helpful assistant collecting information from the user.

Conversation context:
{{conversation_history}}

Intent: {{intent_name}} - {{intent_caption}}

Already collected:
{{collected_params}}

Still needed:
{{missing_params}}

Previously asked but not answered:
{{unanswered_params}}

Rules:
1. Ask for maximum {{max_params}} parameters in one question
2. Group parameters that naturally go together (like from/to cities, dates)
3. If some parameters were asked before but not answered, include them again
4. Be natural and conversational in {{project_language}}
5. Use context from the conversation to make the question flow naturally

Generate ONLY the question, nothing else.""")

    class Config:
        extra = "allow"

class ParameterConfig(BaseModel):
    name: str
    caption: List[LocalizedCaption] = []  # Multi-language captions
    type: str = Field(..., pattern=r"^(int|float|bool|str|string|date)$")
    required: bool = True
    variable_name: str
    extraction_prompt: Optional[str] = None
    validation_regex: Optional[str] = None
    invalid_prompt: Optional[str] = None
    type_error_prompt: Optional[str] = None

    def canonical_type(self) -> str:
        if self.type == "string":
            return "str"
        elif self.type == "date":
            return "str"  # Store dates as strings in ISO format
        return self.type
    
    def get_caption_for_locale(self, locale_code: str, default_locale: str = "tr") -> str:
        """Get caption for specific locale with fallback"""
        # Try exact match
        caption = next((c.caption for c in self.caption if c.locale_code == locale_code), None)
        if caption:
            return caption
        
        # Try language code only (e.g., "tr" from "tr-TR")
        lang_code = locale_code.split("-")[0]
        caption = next((c.caption for c in self.caption if c.locale_code.startswith(lang_code)), None)
        if caption:
            return caption
        
        # Try default locale
        caption = next((c.caption for c in self.caption if c.locale_code.startswith(default_locale)), None)
        if caption:
            return caption
        
        # Return first available or name
        return self.caption[0].caption if self.caption else self.name

class IntentConfig(BaseModel):
    name: str
    caption: Union[str, List[LocalizedCaption]]
    dependencies: List[str] = []
    requiresApproval: bool = False  # YENİ ALAN
    examples: List[LocalizedExample] = []
    detection_prompt: str
    parameters: List[ParameterConfig] = []
    action: str
    fallback_timeout_prompt: Optional[str] = None
    fallback_error_prompt: Optional[str] = None
    deleted: bool = False
    created_date: Optional[str] = None
    created_by: Optional[str] = None
    last_update_date: Optional[str] = None
    last_update_user: Optional[str] = None
    
    class Config:
        extra = "allow"
        
    def get_examples_for_locale(self, locale_code: str) -> List[str]:
        """Get examples for specific locale"""
        # Try exact match
        examples = [e.example for e in self.examples if e.locale_code == locale_code]
        if examples:
            return examples
        
        # Try language code only
        lang_code = locale_code.split("-")[0]
        examples = [e.example for e in self.examples if e.locale_code.startswith(lang_code)]
        if examples:
            return examples
        
        # Return all examples if no locale match
        return [e.example for e in self.examples]

# ===================== Global Configuration =====================
class GlobalConfig(BaseModel):
    # Provider settings (replaces work_mode, cloud_token, spark_endpoint)
    llm_provider: ProviderSettings
    tts_provider: ProviderSettings = Field(default_factory=lambda: ProviderSettings(name="no_tts"))
    stt_provider: ProviderSettings = Field(default_factory=lambda: ProviderSettings(name="no_stt"))
    
    # Available providers
    providers: List[ProviderConfig] = []
    
    # User management
    users: List["UserConfig"] = []
    
    # Helper methods for providers
    def get_provider_config(self, provider_type: str, provider_name: str) -> Optional[ProviderConfig]:
        """Get provider configuration by type and name"""
        return next(
            (p for p in self.providers if p.type == provider_type and p.name == provider_name),
            None
        )
    
    def get_providers_by_type(self, provider_type: str) -> List[ProviderConfig]:
        """Get all providers of a specific type"""
        return [p for p in self.providers if p.type == provider_type]
    
    def get_plain_api_key(self, provider_type: str) -> Optional[str]:
        """Get decrypted API key for a provider type"""
        provider_map = {
            "llm": self.llm_provider,
            "tts": self.tts_provider,
            "stt": self.stt_provider
        }
        provider = provider_map.get(provider_type)
        if provider and provider.api_key:
            if provider.api_key.startswith("enc:"):
                return decrypt(provider.api_key)
            return provider.api_key
        return None
    
    # Backward compatibility helpers
    def is_cloud_mode(self) -> bool:
        """Check if running in cloud mode (HuggingFace)"""
        return bool(os.environ.get("SPACE_ID"))
    
    def is_gpt_mode(self) -> bool:
        """Check if using GPT provider"""
        return self.llm_provider.name.startswith("gpt4o") if self.llm_provider else False
    
    def get_gpt_model(self) -> str:
        """Get the GPT model name for OpenAI API"""
        if self.llm_provider.name == "gpt4o":
            return "gpt-4o"
        elif self.llm_provider.name == "gpt4o-mini":
            return "gpt-4o-mini"
        return None

# ---------------- Service Config ---------
class ServiceConfig(BaseModel):
    global_config: GlobalConfig = Field(..., alias="config")
    projects: List[ProjectConfig]
    apis: List[APIConfig]
    activity_log: List[ActivityLogEntry] = []
    
    # Config level fields
    project_id_counter: int = 1
    last_update_date: Optional[str] = None
    last_update_user: Optional[str] = None

    # runtime helpers (skip validation)
    _api_by_name: Dict[str, APIConfig] = {}

    def build_index(self):
        self._api_by_name = {a.name: a for a in self.apis if not a.deleted}

    def get_api(self, name: str) -> Optional[APIConfig]:
        return self._api_by_name.get(name)
    
    def to_jsonc_dict(self) -> dict:
        """Convert to dict for saving to JSONC file"""
        data = self.model_dump(by_alias=True, exclude={'_api_by_name'})
        
        # Convert API configs
        for api in data.get('apis', []):
            # Convert headers and body_template to JSON strings if needed
            if 'headers' in api and isinstance(api['headers'], dict) and api['headers']:
                api['headers'] = json.dumps(api['headers'], ensure_ascii=False)
            if 'body_template' in api and isinstance(api['body_template'], dict) and api['body_template']:
                api['body_template'] = json.dumps(api['body_template'], ensure_ascii=False)
            
            # Convert auth configs
            if 'auth' in api and api['auth']:
                if 'token_request_body' in api['auth'] and isinstance(api['auth']['token_request_body'], dict):
                    api['auth']['body_template'] = api['auth']['token_request_body']
                    del api['auth']['token_request_body']
                if 'token_refresh_body' in api['auth'] and isinstance(api['auth']['token_refresh_body'], dict):
                    api['auth']['token_refresh_body'] = json.dumps(api['auth']['token_refresh_body'], ensure_ascii=False)
        
        return data
    
    def save(self):
        """Save configuration to file"""
        config_path = Path(__file__).parent / "service_config.jsonc"
        data = self.to_jsonc_dict()
        
        # Pretty print with indentation
        json_str = json.dumps(data, ensure_ascii=False, indent=2)
        
        with open(config_path, 'w', encoding='utf-8') as f:
            f.write(json_str)
        
        log("✅ Configuration saved to service_config.jsonc")

# ---------------- Provider Singleton -----
class ConfigProvider:
    _instance: Optional[ServiceConfig] = None
    _CONFIG_PATH = Path(__file__).parent / "service_config.jsonc"
    _lock = threading.Lock()
    _environment_checked = False

    @classmethod
    def get(cls) -> ServiceConfig:
        """Get cached config - thread-safe"""
        if cls._instance is None:
            with cls._lock:
                # Double-checked locking pattern
                if cls._instance is None:
                    cls._instance = cls._load()
                    cls._instance.build_index()
                    # Environment kontrolünü sadece ilk yüklemede yap
                    if not cls._environment_checked:
                        cls._check_environment_setup()
                        cls._environment_checked = True
        return cls._instance

    @classmethod
    def reload(cls) -> ServiceConfig:
        """Force reload configuration from file - used after UI saves"""
        with cls._lock:
            log("🔄 Reloading configuration...")
            cls._instance = None
            return cls.get()
    
    @classmethod
    def _load(cls) -> ServiceConfig:
        """Load configuration from service_config.jsonc"""
        try:
            log(f"📂 Loading config from: {cls._CONFIG_PATH}")
            
            if not cls._CONFIG_PATH.exists():
                raise FileNotFoundError(f"Config file not found: {cls._CONFIG_PATH}")
            
            with open(cls._CONFIG_PATH, 'r', encoding='utf-8') as f:
                config_data = commentjson.load(f)
            
            # Ensure required fields exist in config data
            if 'config' not in config_data:
                config_data['config'] = {}
            
            # Handle backward compatibility - convert old format to new
            if 'work_mode' in config_data.get('config', {}):
                cls._migrate_old_config(config_data)
            
            # Parse API configs specially
            if 'apis' in config_data:
                for api in config_data['apis']:
                    # Parse JSON string fields
                    if 'headers' in api and isinstance(api['headers'], str):
                        try:
                            api['headers'] = json.loads(api['headers'])
                        except:
                            api['headers'] = {}
                    
                    if 'body_template' in api and isinstance(api['body_template'], str):
                        try:
                            api['body_template'] = json.loads(api['body_template'])
                        except:
                            api['body_template'] = {}
                    
                    # Parse auth configs
                    if 'auth' in api and api['auth']:
                        # token_request_body string ise dict'e çevir
                        if 'token_request_body' in api['auth'] and isinstance(api['auth']['token_request_body'], str):
                            try:
                                api['auth']['token_request_body'] = json.loads(api['auth']['token_request_body'])
                            except:
                                api['auth']['token_request_body'] = {}
                        
                        # token_refresh_body string ise dict'e çevir
                        if 'token_refresh_body' in api['auth'] and isinstance(api['auth']['token_refresh_body'], str):
                            try:
                                api['auth']['token_refresh_body'] = json.loads(api['auth']['token_refresh_body'])
                            except:
                                api['auth']['token_refresh_body'] = {}
                        
                        # Eski body_template alanı için backward compatibility
                        if 'body_template' in api['auth'] and isinstance(api['auth']['body_template'], str):
                            try:
                                api['auth']['token_request_body'] = json.loads(api['auth']['body_template'])
                            except:
                                api['auth']['token_request_body'] = {}
            
            # Load and validate
            cfg = ServiceConfig.model_validate(config_data)
            log("✅ Configuration loaded successfully")
            return cfg
            
        except Exception as e:
            log(f"❌ Error loading config: {e}")
            raise

    @staticmethod
    def _strip_jsonc(text: str) -> str:
        """Remove comments and trailing commas from JSONC"""
        # Remove single-line comments
        text = re.sub(r'//.*$', '', text, flags=re.MULTILINE)
        
        # Remove multi-line comments
        text = re.sub(r'/\*.*?\*/', '', text, flags=re.DOTALL)
        
        # Remove trailing commas before } or ]
        # This is the critical fix for line 107 error
        text = re.sub(r',\s*([}\]])', r'\1', text)
        
        return text
    
    @classmethod
    def _migrate_old_config(cls, config_data: dict):
        """Migrate old config format to new provider-based format"""
        log("🔄 Migrating old config format to new provider format...")
        
        old_config = config_data.get('config', {})
        
        # Create default providers if not exists
        if 'providers' not in old_config:
            old_config['providers'] = [
                {
                    "type": "llm",
                    "name": "spark",
                    "display_name": "Spark (HuggingFace)",
                    "requires_endpoint": True,
                    "requires_api_key": True,
                    "requires_repo_info": True
                },
                {
                    "type": "llm",
                    "name": "gpt4o",
                    "display_name": "GPT-4o",
                    "requires_endpoint": False,
                    "requires_api_key": True,
                    "requires_repo_info": False
                },
                {
                    "type": "llm",
                    "name": "gpt4o-mini",
                    "display_name": "GPT-4o Mini",
                    "requires_endpoint": False,
                    "requires_api_key": True,
                    "requires_repo_info": False
                },
                {
                    "type": "tts",
                    "name": "elevenlabs",
                    "display_name": "ElevenLabs",
                    "requires_endpoint": False,
                    "requires_api_key": True
                },
                {
                    "type": "stt",
                    "name": "google",
                    "display_name": "Google Speech-to-Text",
                    "requires_endpoint": False,
                    "requires_api_key": True
                }
            ]
        
        # Migrate LLM provider
        work_mode = old_config.get('work_mode', 'hfcloud')
        if work_mode in ['gpt4o', 'gpt4o-mini']:
            provider_name = work_mode
            api_key = old_config.get('cloud_token', '')
            endpoint = None
        else:
            provider_name = 'spark'
            api_key = old_config.get('cloud_token', '')
            endpoint = old_config.get('spark_endpoint', '')
        
        old_config['llm_provider'] = {
            "name": provider_name,
            "api_key": api_key,
            "endpoint": endpoint,
            "settings": {
                "internal_prompt": old_config.get('internal_prompt', ''),
                "parameter_collection_config": old_config.get('parameter_collection_config', {
                    "max_params_per_question": 2,
                    "retry_unanswered": True,
                    "collection_prompt": ParameterCollectionConfig().collection_prompt
                })
            }
        }
        
        # Migrate TTS provider
        tts_engine = old_config.get('tts_engine', 'no_tts')
        old_config['tts_provider'] = {
            "name": tts_engine,
            "api_key": old_config.get('tts_engine_api_key', ''),
            "settings": old_config.get('tts_settings', {})
        }
        
        # Migrate STT provider
        stt_engine = old_config.get('stt_engine', 'no_stt')
        old_config['stt_provider'] = {
            "name": stt_engine,
            "api_key": old_config.get('stt_engine_api_key', ''),
            "settings": old_config.get('stt_settings', {})
        }
        
        # Migrate projects - language settings
        for project in config_data.get('projects', []):
            if 'default_language' in project:
                # Map language names to locale codes
                lang_to_locale = {
                    'Türkçe': 'tr',
                    'Turkish': 'tr',
                    'English': 'en',
                    'Deutsch': 'de',
                    'German': 'de'
                }
                project['default_locale'] = lang_to_locale.get(project['default_language'], 'tr')
                del project['default_language']
            
            if 'supported_languages' in project:
                # Convert to locale codes
                supported_locales = []
                for lang in project['supported_languages']:
                    locale = lang_to_locale.get(lang, lang)
                    if locale not in supported_locales:
                        supported_locales.append(locale)
                project['supported_locales'] = supported_locales
                del project['supported_languages']
            
            # Migrate intent examples and parameter captions
            for version in project.get('versions', []):
                for intent in version.get('intents', []):
                    # Migrate examples
                    if 'examples' in intent and isinstance(intent['examples'], list):
                        new_examples = []
                        for example in intent['examples']:
                            if isinstance(example, str):
                                # Old format - use project default locale
                                new_examples.append({
                                    "locale_code": project.get('default_locale', 'tr'),
                                    "example": example
                                })
                            elif isinstance(example, dict) and 'locale_code' in example:
                                # Already new format
                                new_examples.append(example)
                        intent['examples'] = new_examples
                    
                    # Migrate parameter captions
                    for param in intent.get('parameters', []):
                        if 'caption' in param:
                            if isinstance(param['caption'], str):
                                # Old format - convert to multi-language
                                param['caption'] = [{
                                    "locale_code": project.get('default_locale', 'tr'),
                                    "caption": param['caption']
                                }]
                            elif isinstance(param['caption'], list) and param['caption'] and isinstance(param['caption'][0], dict):
                                # Already new format
                                pass
        
        # Remove old fields
        fields_to_remove = ['work_mode', 'cloud_token', 'spark_endpoint', 'internal_prompt',
                           'tts_engine', 'tts_engine_api_key', 'tts_settings',
                           'stt_engine', 'stt_engine_api_key', 'stt_settings',
                           'parameter_collection_config']
        for field in fields_to_remove:
            old_config.pop(field, None)
        
        log("✅ Config migration completed")
    
    @classmethod
    def _check_environment_setup(cls):
        """Check if environment is properly configured"""
        if not cls._instance:
            return
            
        cfg = cls._instance.global_config
        
        # Check LLM provider
        if not cfg.llm_provider or not cfg.llm_provider.name:
            log("⚠️ WARNING: No LLM provider configured")
            return
        
        provider_config = cfg.get_provider_config("llm", cfg.llm_provider.name)
        if not provider_config:
            log(f"⚠️ WARNING: Unknown LLM provider: {cfg.llm_provider.name}")
            return
        
        # Check requirements
        if provider_config.requires_api_key and not cfg.llm_provider.api_key:
            log(f"⚠️ WARNING: {provider_config.display_name} requires API key but none configured")
        
        if provider_config.requires_endpoint and not cfg.llm_provider.endpoint:
            log(f"⚠️ WARNING: {provider_config.display_name} requires endpoint but none configured")
        
        log(f"✅ LLM Provider: {provider_config.display_name}")
    
    # ===================== CRUD Operations =====================
    @classmethod
    def add_activity_log(cls, username: str, action: str, entity_type: str, 
                        entity_id: Optional[int] = None, entity_name: Optional[str] = None,
                        details: Optional[Dict[str, Any]] = None) -> None:
        """Add activity log entry with detailed context"""
        if cls._instance is None:
            cls.get()
        
        # Build detailed context
        detail_str = None
        if details:
            detail_str = json.dumps(details, ensure_ascii=False)
        else:
            # Auto-generate details based on action
            if action == "CREATE_PROJECT":
                detail_str = f"Created new project '{entity_name}'"
            elif action == "UPDATE_PROJECT":
                detail_str = f"Updated project configuration"
            elif action == "DELETE_PROJECT":
                detail_str = f"Soft deleted project '{entity_name}'"
            elif action == "CREATE_VERSION":
                detail_str = f"Created new version for {entity_name}"
            elif action == "PUBLISH_VERSION":
                detail_str = f"Published version {entity_id}"
            elif action == "CREATE_INTENT":
                detail_str = f"Added intent '{entity_name}'"
            elif action == "UPDATE_INTENT":
                detail_str = f"Modified intent configuration"
            elif action == "DELETE_INTENT":
                detail_str = f"Removed intent '{entity_name}'"
            elif action == "CREATE_API":
                detail_str = f"Created API endpoint '{entity_name}'"
            elif action == "UPDATE_API":
                detail_str = f"Modified API configuration"
            elif action == "DELETE_API":
                detail_str = f"Soft deleted API '{entity_name}'"
            elif action == "LOGIN":
                detail_str = f"User logged in"
            elif action == "LOGOUT":
                detail_str = f"User logged out"
            elif action == "IMPORT_PROJECT":
                detail_str = f"Imported project from file"
            elif action == "EXPORT_PROJECT":
                detail_str = f"Exported project '{entity_name}'"
        
        entry = ActivityLogEntry(
            timestamp=datetime.now().isoformat() + "Z",
            username=username,
            action=action,
            entity_type=entity_type,
            entity_id=entity_id,
            entity_name=entity_name,
            details=detail_str
        )
        
        cls._instance.activity_log.append(entry)
        
        # Keep only last 1000 entries
        if len(cls._instance.activity_log) > 1000:
            cls._instance.activity_log = cls._instance.activity_log[-1000:]
        
        # Save immediately for audit trail
        cls._instance.save()
    
    @classmethod
    def update_environment(cls, update_data: dict, username: str) -> None:
        """Update environment configuration"""
        if cls._instance is None:
            cls.get()
        
        config = cls._instance.global_config
        
        # Update provider settings
        if 'llm_provider' in update_data:
            llm_data = update_data['llm_provider']
            if 'api_key' in llm_data and llm_data['api_key'] and not llm_data['api_key'].startswith('enc:'):
                from encryption_utils import encrypt
                llm_data['api_key'] = encrypt(llm_data['api_key'])
            config.llm_provider = ProviderSettings(**llm_data)
        
        if 'tts_provider' in update_data:
            tts_data = update_data['tts_provider']
            if 'api_key' in tts_data and tts_data['api_key'] and not tts_data['api_key'].startswith('enc:'):
                from encryption_utils import encrypt
                tts_data['api_key'] = encrypt(tts_data['api_key'])
            config.tts_provider = ProviderSettings(**tts_data)
        
        if 'stt_provider' in update_data:
            stt_data = update_data['stt_provider']
            if 'api_key' in stt_data and stt_data['api_key'] and not stt_data['api_key'].startswith('enc:'):
                from encryption_utils import encrypt
                stt_data['api_key'] = encrypt(stt_data['api_key'])
            config.stt_provider = ProviderSettings(**stt_data)
        
        # Update metadata
        cls._instance.last_update_date = datetime.now().isoformat() + "Z"
        cls._instance.last_update_user = username
        
        # Add activity log
        cls.add_activity_log(username, "UPDATE_ENVIRONMENT", "environment", None, None, 
                           f"Updated providers: LLM={config.llm_provider.name}, TTS={config.tts_provider.name}, STT={config.stt_provider.name}")
        
        # Save
        cls._instance.save()
    
    @classmethod
    def get_project(cls, project_id: int) -> Optional[ProjectConfig]:
        """Get project by ID"""
        if cls._instance is None:
            cls.get()
        
        return next((p for p in cls._instance.projects if p.id == project_id), None)
    
    @classmethod
    def create_project(cls, project_data: dict, username: str) -> ProjectConfig:
        """Create new project with initial version"""
        if cls._instance is None:
            cls.get()
        
        # Check name uniqueness
        if any(p.name == project_data['name'] for p in cls._instance.projects if not p.deleted):
            raise ValueError(f"Project name '{project_data['name']}' already exists")
        
        # Increment global project counter
        cls._instance.project_id_counter += 1
        
        # Create project
        new_project = ProjectConfig(
            id=cls._instance.project_id_counter,
            name=project_data['name'],
            caption=project_data.get('caption', ''),
            icon=project_data.get('icon', 'folder'),
            description=project_data.get('description', ''),
            enabled=True,
            default_locale=project_data.get('default_locale', 'tr'),
            supported_locales=project_data.get('supported_locales', ['tr']),
            timezone=project_data.get('timezone', 'Europe/Istanbul'),
            region=project_data.get('region', 'tr-TR'),
            version_id_counter=1,
            versions=[],
            deleted=False,
            created_date=datetime.now().isoformat() + "Z",
            created_by=username,
            last_update_date=datetime.now().isoformat() + "Z",
            last_update_user=username
        )
        
        # Create initial version
        initial_version = VersionConfig(
            no=1,  # Sadece no kullan
            caption="Version 1",
            description="Initial version",
            published=False,
            deleted=False,
            created_date=datetime.now().isoformat() + "Z",
            created_by=username,
            last_update_date=datetime.now().isoformat() + "Z",
            last_update_user=username,
            general_prompt="You are a helpful assistant.",
            welcome_prompt=None,
            llm=LLMConfig(
                repo_id="ytu-ce-cosmos/Turkish-Llama-8b-Instruct-v0.1",
                generation_config={
                    "max_new_tokens": 256,
                    "temperature": 0.7
                }
            ),
            intents=[]
        )
        
        new_project.versions.append(initial_version)
        
        # Add to config
        cls._instance.projects.append(new_project)
        
        # Add activity log
        cls.add_activity_log(username, "CREATE_PROJECT", "project", new_project.id, new_project.name)
        
        # Save
        cls._instance.save()
        
        return new_project
    
    @classmethod
    def update_project(cls, project_id: int, update_data: dict, username: str) -> ProjectConfig:
        """Update project"""
        if cls._instance is None:
            cls.get()
        
        project = cls.get_project(project_id)
        if not project:
            raise ValueError(f"Project not found: {project_id}")
        
        if project.deleted:
            raise ValueError("Cannot update deleted project")
        
        # Update fields
        if 'caption' in update_data:
            project.caption = update_data['caption']
        if 'icon' in update_data:
            project.icon = update_data['icon']
        if 'description' in update_data:
            project.description = update_data['description']
        if 'default_locale' in update_data:
            project.default_locale = update_data['default_locale']
        if 'supported_locales' in update_data:
            project.supported_locales = update_data['supported_locales']
        if 'timezone' in update_data:
            project.timezone = update_data['timezone']
        if 'region' in update_data:
            project.region = update_data['region']
        
        # Update metadata
        project.last_update_date = datetime.now().isoformat() + "Z"
        project.last_update_user = username
        
        # Add activity log
        cls.add_activity_log(username, "UPDATE_PROJECT", "project", project.id, project.name)
        
        # Save
        cls._instance.save()
        
        return project
    
    @classmethod
    def delete_project(cls, project_id: int, username: str) -> None:
        """Soft delete project"""
        if cls._instance is None:
            cls.get()
        
        project = cls.get_project(project_id)
        if not project:
            raise ValueError(f"Project not found: {project_id}")
        
        project.deleted = True
        project.last_update_date = datetime.now().isoformat() + "Z"
        project.last_update_user = username
        
        # Add activity log
        cls.add_activity_log(username, "DELETE_PROJECT", "project", project.id, project.name)
        
        # Save
        cls._instance.save()
    
    @classmethod
    def toggle_project(cls, project_id: int, username: str) -> bool:
        """Toggle project enabled status"""
        if cls._instance is None:
            cls.get()
        
        project = cls.get_project(project_id)
        if not project:
            raise ValueError(f"Project not found: {project_id}")
        
        project.enabled = not project.enabled
        project.last_update_date = datetime.now().isoformat() + "Z"
        project.last_update_user = username
        
        # Add activity log
        action = "ENABLE_PROJECT" if project.enabled else "DISABLE_PROJECT"
        cls.add_activity_log(username, action, "project", project.id, project.name)
        
        # Save
        cls._instance.save()
        
        return project.enabled
    
    @classmethod
    def create_api(cls, api_data: dict, username: str) -> APIConfig:
        """Create new API"""
        if cls._instance is None:
            cls.get()
        
        # Check name uniqueness
        if any(a.name == api_data['name'] for a in cls._instance.apis if not a.deleted):
            raise ValueError(f"API name '{api_data['name']}' already exists")
        
        # Create API
        new_api = APIConfig(
            name=api_data['name'],
            url=api_data['url'],
            method=api_data.get('method', 'GET'),
            headers=api_data.get('headers', {}),
            body_template=api_data.get('body_template', {}),
            timeout_seconds=api_data.get('timeout_seconds', 10),
            retry=RetryConfig(**api_data.get('retry', {})) if 'retry' in api_data else RetryConfig(),
            proxy=api_data.get('proxy'),
            auth=APIAuthConfig(**api_data.get('auth', {})) if api_data.get('auth') else None,
            response_prompt=api_data.get('response_prompt'),
            response_mappings=api_data.get('response_mappings', []),
            deleted=False,
            created_date=datetime.now().isoformat() + "Z",
            created_by=username,
            last_update_date=datetime.now().isoformat() + "Z",
            last_update_user=username
        )
        
        # Add to config
        cls._instance.apis.append(new_api)
        
        # Rebuild index
        cls._instance.build_index()
        
        # Add activity log
        cls.add_activity_log(username, "CREATE_API", "api", None, new_api.name)
        
        # Save
        cls._instance.save()
        
        return new_api
    
    @classmethod
    def update_api(cls, api_name: str, update_data: dict, username: str) -> APIConfig:
        """Update API"""
        if cls._instance is None:
            cls.get()
        
        api = next((a for a in cls._instance.apis if a.name == api_name and not a.deleted), None)
        if not api:
            raise ValueError(f"API not found: {api_name}")
        
        # Update fields
        for field in ['url', 'method', 'headers', 'body_template', 'timeout_seconds', 
                     'proxy', 'response_prompt', 'response_mappings']:
            if field in update_data:
                setattr(api, field, update_data[field])
        
        # Update retry config
        if 'retry' in update_data:
            api.retry = RetryConfig(**update_data['retry'])
        
        # Update auth config
        if 'auth' in update_data:
            if update_data['auth']:
                api.auth = APIAuthConfig(**update_data['auth'])
            else:
                api.auth = None
        
        # Update metadata
        api.last_update_date = datetime.now().isoformat() + "Z"
        api.last_update_user = username
        
        # Add activity log
        cls.add_activity_log(username, "UPDATE_API", "api", None, api.name)
        
        # Save
        cls._instance.save()
        
        return api
    
    @classmethod
    def delete_api(cls, api_name: str, username: str) -> None:
        """Soft delete API"""
        if cls._instance is None:
            cls.get()
        
        api = next((a for a in cls._instance.apis if a.name == api_name and not a.deleted), None)
        if not api:
            raise ValueError(f"API not found: {api_name}")
        
        # Check if API is used in any intent
        for project in cls._instance.projects:
            if getattr(project, 'deleted', False):
                continue
                
            for version in project.versions:
                if getattr(version, 'deleted', False):
                    continue
                
                for intent in version.intents:
                    if intent.action == api_name:
                        raise ValueError(f"API is used in intent '{intent.name}' in project '{project.name}' version {version.no}")
        
        api.deleted = True
        api.last_update_date = datetime.now().isoformat() + "Z"
        api.last_update_user = username
        
        # Add activity log
        cls.add_activity_log(username, "DELETE_API", "api", None, api_name)
        
        # Save
        cls._instance.save()
    
    @classmethod
    def import_project(cls, project_data: dict, username: str) -> ProjectConfig:
        """Import project from JSON"""
        if cls._instance is None:
            cls.get()
        
        # Validate structure
        if "name" not in project_data:
            raise ValueError("Invalid project data")
        
        # Create new project with imported data
        imported_data = {
            "name": project_data["name"],
            "caption": project_data.get("caption", ""),
            "icon": project_data.get("icon", "folder"),
            "description": project_data.get("description", ""),
            "default_locale": project_data.get("default_locale", "tr"),
            "supported_locales": project_data.get("supported_locales", ["tr"])
        }
        
        # Create project
        new_project = cls.create_project(imported_data, username)
        
        # Clear default version
        new_project.versions = []
        
        # Import versions
        for idx, version_data in enumerate(project_data.get("versions", [])):
            new_version = VersionConfig(
                no=idx + 1,
                caption=version_data.get("caption", f"v{idx + 1}"),
                description=version_data.get("description", ""),
                published=version_data.get("published", False),
                general_prompt=version_data.get("general_prompt", ""),
                welcome_prompt=version_data.get("welcome_prompt"),
                llm=LLMConfig(**version_data.get("llm", {})),
                intents=[IntentConfig(**i) for i in version_data.get("intents", [])],
                created_date=datetime.now().isoformat() + "Z",
                created_by=username
            )
            new_project.versions.append(new_version)
            
            # Update version counter
            new_project.version_id_counter = max(new_project.version_id_counter, new_version.no)
               
        # Save
        cls._instance.save()
        
        # Add activity log
        cls.add_activity_log(username, "IMPORT_PROJECT", "project", new_project.id, new_project.name,
                           f"Imported with {len(new_project.versions)} versions")
        
        return new_project