import os
from dataclasses import dataclass
from pathlib import Path

from dotenv import load_dotenv


BASE_DIR = Path(__file__).resolve().parent
load_dotenv(BASE_DIR / ".env", override=True)


def env_bool(name: str, default: bool = False) -> bool:
    value = os.getenv(name)
    if value is None:
        return default
    return value.strip().lower() in {"1", "true", "yes", "on"}


@dataclass(frozen=True)
class Config:
    app_name: str = os.getenv("APP_NAME", "API接口系统")
    host: str = os.getenv("APP_HOST", os.getenv("API_HOST", "0.0.0.0"))
    port: int = int(os.getenv("APP_PORT", os.getenv("API_PORT", "7788")))
    debug: bool = env_bool("APP_DEBUG", env_bool("API_DEBUG", False))

    secret_key: str = os.getenv("SECRET_KEY", "replace-this-secret-key")
    api_key: str = os.getenv("API_KEY", "change-me")
    session_cookie_secure: bool = env_bool("SESSION_COOKIE_SECURE", False)

    db_host: str = os.getenv("DB_HOST", "127.0.0.1")
    db_port: int = int(os.getenv("DB_PORT", "3306"))
    db_user: str = os.getenv("DB_USER", "api_reader")
    db_password: str = os.getenv("DB_PASSWORD", "")
    db_name: str = os.getenv("DB_NAME", "member_system")
    db_charset: str = os.getenv("DB_CHARSET", "utf8mb4")
    db_connect_timeout: int = int(os.getenv("DB_CONNECT_TIMEOUT", "5"))

    members_table: str = os.getenv("MEMBERS_TABLE", "members")
    withdraw_table: str = os.getenv("WITHDRAW_TABLE", "withdraw_records")
    withdraw_request_table: str = os.getenv(
        "WITHDRAW_REQUEST_TABLE", "withdraw_request_records"
    )
    deposit_table: str = os.getenv("DEPOSIT_TABLE", "deposit_records")

    read_only_mode: bool = env_bool("READ_ONLY_MODE", True)
    auto_init_sim_tables: bool = env_bool("AUTO_INIT_SIM_TABLES", False)
    default_activity_id: str = os.getenv("DEFAULT_ACTIVITY_ID", "ad-x1234")
    deposit_search_hours: int = int(os.getenv("DEPOSIT_SEARCH_HOURS", "24"))
    max_orders: int = int(os.getenv("MAX_ORDERS", "50"))

    # Chatwoot 網站客服設定
    chatwoot_enabled: bool = env_bool("CHATWOOT_ENABLED", True)
    chatwoot_base_url: str = os.getenv(
        "CHATWOOT_BASE_URL",
        "http://pai.pubuli.com",
    ).rstrip("/")
    chatwoot_website_token: str = os.getenv(
        "CHATWOOT_WEBSITE_TOKEN",
        "Vivum4g1WWxH1AmxoTivAcX5",
    )
    # 必須使用 Chatwoot Website Inbox 的 Identity Validation Token。
    # 此值只保留在後端，絕不可輸出到 HTML 或 JavaScript。
    chatwoot_identity_secret: str = os.getenv(
        "CHATWOOT_IDENTITY_SECRET",
        "",
    )
    chatwoot_debug: bool = env_bool("CHATWOOT_DEBUG", False)
    chatwoot_account_id: int = int(os.getenv("CHATWOOT_ACCOUNT_ID", "1"))
    chatwoot_inbox_id: int = int(os.getenv("CHATWOOT_INBOX_ID", "1"))
    chatwoot_api_email: str = os.getenv("CHATWOOT_API_EMAIL", "")
    chatwoot_api_password: str = os.getenv("CHATWOOT_API_PASSWORD", "")
    chatwoot_greeting: str = os.getenv(
        "CHATWOOT_GREETING",
        "您好，欢迎光临【49彩票集团】客服服务中心，请问有什么可以帮到您的呢？",
    )
    chatwoot_greeting_image: str = os.getenv(
        "CHATWOOT_GREETING_IMAGE",
        "static/guest_promo.png",
    )
    chatwoot_guest_base_url: str = os.getenv(
        "CHATWOOT_GUEST_BASE_URL",
        "",
    ).rstrip("/")
    chatwoot_guest_website_token: str = os.getenv(
        "CHATWOOT_GUEST_WEBSITE_TOKEN",
        "",
    )
    chatwoot_guest_proxy_target: str = os.getenv(
        "CHATWOOT_GUEST_PROXY_TARGET",
        "http://127.0.0.1:3000",
    ).rstrip("/")
    chatwoot_guest_api_base: str = os.getenv(
        "CHATWOOT_GUEST_API_BASE",
        "",
    ).rstrip("/")
    chatwoot_guest_api_email: str = os.getenv("CHATWOOT_GUEST_API_EMAIL", "")
    chatwoot_guest_api_password: str = os.getenv("CHATWOOT_GUEST_API_PASSWORD", "")
    chatwoot_guest_inbox_id: int = int(os.getenv("CHATWOOT_GUEST_INBOX_ID", "1"))
    chatwoot_widget_jwt_secret: str = os.getenv("CHATWOOT_WIDGET_JWT_SECRET", "")
    chatwoot_agent_bot_id: int = int(os.getenv("CHATWOOT_AGENT_BOT_ID", "0") or "0")
    chatwoot_agent_bot_token: str = os.getenv("CHATWOOT_AGENT_BOT_TOKEN", "")

    # 本機 Chatwoot → PAI MaxKB 橋接
    maxkb_bridge_enabled: bool = env_bool("MAXKB_BRIDGE_ENABLED", True)
    maxkb_base_url: str = os.getenv(
        "MAXKB_BASE_URL",
        "http://pai.pubuli.com:8080",
    ).rstrip("/")
    maxkb_access_token: str = os.getenv("MAXKB_ACCESS_TOKEN", "")
    maxkb_timeout_sec: float = float(os.getenv("MAXKB_TIMEOUT_SEC", "120"))


CONFIG = Config()