"""
Конфигурация приложения
"""
import os
import json
from pathlib import Path
from pydantic_settings import BaseSettings
from typing import List, Optional


BASE_DIR = Path(__file__).resolve().parents[2]
ENV_PATH = BASE_DIR / ".env"

# Список CORS, обновляется при изменении .env (чтобы не перезапускать бэкенд)
_cors_origins_live: List[str] = []
_settings_cache: Optional["Settings"] = None
_env_mtime_cache: float = 0


class Settings(BaseSettings):
    # ============================================
    # APPLICATION
    # ============================================
    app_name: str = "Ticket Form Intake Platform"
    app_env: str = "development"
    debug: bool = True
    
    # API
    api_v1_prefix: str = "/api/v1"
    backend_url: str = "http://localhost:8200"
    frontend_url: str = "http://localhost:5175"
    
    # ============================================
    # DATABASE (PostgreSQL)
    # ============================================
    postgres_host: str = "147.45.189.234"
    postgres_port: int = 5432
    postgres_db: str = "default_db"
    postgres_user: str = "gen_user"
    postgres_password: str = "2~~9_^kVsU?2\\S"
    
    # ============================================
    # MYSQL (для проверки полисов ERV)
    # ============================================
    mysql_host: str = "localhost"
    mysql_port: int = 3306
    mysql_db: str = "u2768571_crm_db"
    mysql_user: str = "root"
    mysql_password: str = ""
    
    # ============================================
    # MYSQL CRM (vtiger CRM)
    # ============================================
    mysql_crm_host: str = "localhost"  # В режиме network_mode: host используем localhost  # Доступ к хосту из Docker контейнера
    mysql_crm_port: int = 3306
    mysql_crm_db: str = "ci20465_72new"
    mysql_crm_user: str = "ci20465_72new"
    mysql_crm_password: str = "EcY979Rn"
    
    @property
    def database_url(self) -> str:
        """Формирует URL для подключения к PostgreSQL"""
        return f"postgresql+asyncpg://{self.postgres_user}:{self.postgres_password}@{self.postgres_host}:{self.postgres_port}/{self.postgres_db}"
    
    # ============================================
    # REDIS (внешний — события, буферы, SMS и т.д.)
    # ============================================
    redis_host: str = "localhost"
    redis_port: int = 6379
    redis_password: str = "CRM_Redis_Pass_2025_Secure!"
    redis_db: int = 0
    redis_prefix: str = "ticket_form:"

    # Redis для сессий (локальный в Docker — miniapp_redis; снаружи — localhost:6383 или свой)
    redis_session_host: str = "localhost"
    redis_session_port: int = 6383
    redis_session_password: str = ""
    redis_session_db: int = 0
    
    @property
    def redis_url(self) -> str:
        """Формирует URL для подключения к Redis (внешний)"""
        if self.redis_password:
            return f"redis://:{self.redis_password}@{self.redis_host}:{self.redis_port}/{self.redis_db}"
        return f"redis://{self.redis_host}:{self.redis_port}/{self.redis_db}"

    @property
    def redis_session_url(self) -> str:
        """URL для локального Redis сессий"""
        if self.redis_session_password:
            return f"redis://:{self.redis_session_password}@{self.redis_session_host}:{self.redis_session_port}/{self.redis_session_db}"
        return f"redis://{self.redis_session_host}:{self.redis_session_port}/{self.redis_session_db}"
    
    # ============================================
    # RABBITMQ
    # ============================================
    rabbitmq_host: str = "185.197.75.249"
    rabbitmq_port: int = 5672
    rabbitmq_user: str = "admin"
    rabbitmq_password: str = "tyejvtej"
    rabbitmq_vhost: str = "/"
    
    @property
    def rabbitmq_url(self) -> str:
        """Формирует URL для подключения к RabbitMQ"""
        return f"amqp://{self.rabbitmq_user}:{self.rabbitmq_password}@{self.rabbitmq_host}:{self.rabbitmq_port}{self.rabbitmq_vhost}"
    
    # ============================================
    # S3 STORAGE (Timeweb Cloud Storage)
    # ============================================
    s3_endpoint: str = "https://s3.timeweb.com"
    s3_bucket: str = "erv-platform-files"
    s3_access_key: str = "your_access_key_here"
    s3_secret_key: str = "your_secret_key_here"
    s3_region: str = "ru-1"
    
    # ============================================
    # OCR SERVICE
    # ============================================
    ocr_api_url: str = "http://147.45.146.17:8001"
    ocr_api_key: str = ""
    
    # ============================================
    # AI SERVICE (OpenRouter)
    # ============================================
    openrouter_api_key: str = "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"
    openrouter_base_url: str = "https://openrouter.ai/api/v1"
    openrouter_model: str = "google/gemini-2.0-flash-001"
    
    # ============================================
    # FLIGHT APIs
    # ============================================
    # FlightAware
    flightaware_api_key: str = "Puz0cdxAHzAEqMRZwtdeqBUSm9naJfwK"
    flightaware_base_url: str = "https://aeroapi.flightaware.com/aeroapi"
    
    # AviationStack (резервный)
    aviationstack_api_key: str = ""
    aviationstack_base_url: str = "http://api.aviationstack.com/v1"
    
    # ============================================
    # NSPK BANKS API (и альтернативный BANK_IP из .env)
    # ============================================
    nspk_banks_api_url: str = "https://qr.nspk.ru/proxyapp/c2bmembers.json"
    bank_ip: str = "http://212.193.27.93/api/payouts/dictionaries/nspk-banks"
    bank_api_url: str = "http://212.193.27.93/api/payouts/dictionaries/nspk-banks"

    # ============================================
    # DADATA (подсказки адресов в форме профиля)
    # ============================================
    forma_dadata_api_key: str = ""   # FORMA_DADATA_API_KEY
    forma_dadata_secret: str = ""    # FORMA_DADATA_SECRET
    
    # ============================================
    # SMS SERVICE (SigmaSMS)
    # ============================================
    sms_api_url: str = "https://online.sigmasms.ru/api/"
    sms_login: str = ""
    sms_password: str = ""
    sms_token: str = ""
    sms_sender: str = "lexpriority"
    sms_enabled: bool = True
    
    # ============================================
    # VTIGER CRM (PHP Bridge)
    # ============================================
    crm_webservice_url: str = "http://crm.clientright.ru/webservice.php"
    crm_webform_url: str = "https://crm.clientright.ru/modules/Webforms/capture.php"
    crm_token: str = ""
    
    # ============================================
    # RATE LIMITING
    # ============================================
    rate_limit_per_minute: int = 60
    rate_limit_per_hour: int = 1000
    
    # ============================================
    # FILE UPLOAD
    # ============================================
    max_upload_size_mb: int = 50
    allowed_file_extensions: str = "pdf,jpg,jpeg,png,heic,heif,webp"
    
    @property
    def allowed_extensions_list(self) -> List[str]:
        """Список разрешенных расширений файлов"""
        return [ext.strip() for ext in self.allowed_file_extensions.split(",")]
    
    # ============================================
    # CORS
    # ============================================
    cors_origins: str = "http://localhost:5175,http://127.0.0.1:5175,http://147.45.146.17:5175"
    
    @property
    def cors_origins_list(self) -> List[str]:
        """Список CORS origins"""
        if isinstance(self.cors_origins, str):
            return [origin.strip() for origin in self.cors_origins.split(",")]
        return self.cors_origins
    
    # ============================================
    # N8N API & WEBHOOKS
    # ============================================
    n8n_url: str = "https://n8n.clientright.pro"
    n8n_api_key: str = ""  # Нужно задать в .env
    n8n_policy_check_webhook: str = ""
    n8n_file_upload_webhook: str = ""
    n8n_create_contact_webhook: str = "https://n8n.clientright.pro/webhook/511fde97-88bb-4fb4-bea5-cafdc364be27"
    n8n_create_claim_webhook: str = "https://n8n.clientright.pro/webhook/d5bf4ca6-9e44-44b9-9714-3186ea703e7d"
    n8n_description_webhook: str = "https://n8n.clientright.ru/webhook/ticket_form_description"  # Webhook для описания проблемы (переопределяется через N8N_DESCRIPTION_WEBHOOK в .env)
    # Консультации: тикеты из CRM (MySQL) — тот же payload, что и у других хуков
    n8n_ticket_form_consultation_webhook: str = ""  # N8N_TICKET_FORM_CONSULTATION_WEBHOOK в .env
    # Подробнее по тикету: session + ticket_id → ответ вебхука (HTML/JSON)
    n8n_ticket_form_podrobnee_webhook: str = ""  # N8N_TICKET_FORM_PODROBNEE_WEBHOOK в .env
    # Wizard и финальная отправка заявки (create) — один webhook, меняется через .env
    n8n_ticket_form_final_webhook: str = "https://n8n.clientright.pro/webhook/ecc93306-fadc-489a-afdb-d3e981013df3"
    n8n_tg_auth_webhook: str = ""  # Webhook для авторизации пользователей Telegram WebApp (Mini App)

    # Контактные данные из CRM для раздела «Профиль» (массив или пусто)
    n8n_contact_webhook: str = ""  # N8N_CONTACT_WEBHOOK в .env
    n8n_profile_update_webhook: str = ""  # N8N_PROFILE_UPDATE_WEBHOOK в .env — обновление профиля (verification=0)

    # ============================================
    # TELEGRAM BOT
    # ============================================
    telegram_bot_token: str = ""  # Токен бота для проверки initData WebApp

    def get_telegram_bot_tokens(self) -> List[tuple]:
        """Список (bot_id, token) для проверки подписи Telegram initData. Один токен — [('default', token)]."""
        token = (self.telegram_bot_token or "").strip()
        if token:
            return [("default", token)]
        return []

    # ============================================
    # MAX (мессенджер) — Mini App auth
    # ============================================
    max_bot_token: str = ""  # Токен бота MAX (один бот)
    max_bot_tokens: str = ""  # Мультибот: JSON {"bot_id": "token", ...}. Если задан — используется вместо max_bot_token.

    def get_max_bot_tokens(self) -> List[tuple]:
        """Список (bot_id, token) для проверки подписи MAX initData. Из MAX_BOT_TOKENS (JSON) или [('default', MAX_BOT_TOKEN)]."""
        s = (self.max_bot_tokens or os.environ.get("MAX_BOT_TOKENS") or "").strip()
        if s:
            try:
                d = json.loads(s)
                out = [(k, str(v).strip()) for k, v in d.items() if v and str(v).strip()]
                if out:
                    return out
            except Exception:
                pass
        token = (self.max_bot_token or os.environ.get("MAX_BOT_TOKEN") or "").strip()
        if token:
            return [("default", token)]
        return []

    n8n_max_auth_webhook: str = ""  # Webhook n8n: max_user_id → unified_id, contact_id, has_drafts
    n8n_auth_webhook: str = ""  # Универсальный auth: channel + channel_user_id + init_data → unified_id, phone, contact_id, has_drafts

    # ============================================
    # LOGGING
    # ============================================
    log_level: str = "INFO"
    log_file: str = "/app/logs/ticket_form_backend.log"
    
    class Config:
        env_file = str(ENV_PATH)
        case_sensitive = False
        extra = "ignore"  # Игнорируем лишние поля из .env


def get_settings() -> Settings:
    """Текущие настройки. При изменении .env подхватываются без перезапуска."""
    global _settings_cache, _env_mtime_cache, _cors_origins_live
    mtime = os.path.getmtime(ENV_PATH) if ENV_PATH.exists() else 0.0
    if _settings_cache is None or mtime > _env_mtime_cache:
        _settings_cache = Settings()
        _env_mtime_cache = mtime
        _cors_origins_live.clear()
        _cors_origins_live.extend(_settings_cache.cors_origins_list)
    return _settings_cache


def get_cors_origins_live() -> List[str]:
    """
    Список CORS origins для middleware; обновляется при изменении .env без перезапуска.
    Обработчики, которые используют get_settings() при каждом запросе, тоже видят новые значения.
    """
    get_settings()  # обновить кеш и _cors_origins_live при изменении .env
    return _cors_origins_live


settings = get_settings()