from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", extra="ignore")

    app_name: str = "AI发糕"
    openai_api_key: str | None = Field(default=None, alias="OPENAI_API_KEY")
    openai_base_url: str | None = Field(default=None, alias="OPENAI_BASE_URL")
    openai_model: str = Field(default="gpt-4.1-mini", alias="OPENAI_MODEL")
    openai_timeout: float = Field(
        default=120.0,
        alias="OPENAI_TIMEOUT",
        description="HTTP 等待模型单轮响应的最长时间（秒）。通义长文 JSON 建议 120~180",
    )
    openai_max_retries: int = Field(
        default=0,
        alias="OPENAI_MAX_RETRIES",
        description="OpenAI SDK 自动重试次数。为避免单次请求被重试拉长，默认 0。",
    )
    openai_max_output_tokens: int = Field(
        default=8192,
        alias="OPENAI_MAX_OUTPUT_TOKENS",
        description="单次模型输出 token 上限；通义等长文 JSON 需足够大",
    )
    openai_image_model: str = Field(
        default="gpt-image-1",
        alias="OPENAI_IMAGE_MODEL",
        description="用于海报生成的图像模型",
    )
    openai_source_max_chars: int = Field(default=5000, alias="OPENAI_SOURCE_MAX_CHARS")
    ai_soft_accept: bool = Field(
        default=True,
        alias="AI_SOFT_ACCEPT",
        description="质检未通过时仍输出模型洗稿正文（mode=ai，quality_notes 记录问题），仅模型完全失败时用保底稿",
    )

    wechat_appid: str | None = Field(default=None, alias="WECHAT_APPID")
    wechat_secret: str | None = Field(default=None, alias="WECHAT_SECRET")
    wechat_author: str = Field(default="AI 编辑部", alias="WECHAT_AUTHOR")
    wechat_thumb_media_id: str | None = Field(
        default=None,
        alias="WECHAT_THUMB_MEDIA_ID",
        description="草稿图文封面：永久素材 media_id（素材库或 add_material）。与 WECHAT_THUMB_IMAGE_PATH 二选一即可",
    )
    wechat_thumb_image_path: str | None = Field(
        default=None,
        alias="WECHAT_THUMB_IMAGE_PATH",
        description="本地封面图路径（容器内），将自动上传为永久素材；不配则使用内置灰底图上传",
    )
    poster_image_size: str = Field(
        default="1024x1536",
        alias="POSTER_IMAGE_SIZE",
        description="AI 海报生成尺寸（OpenAI images.generate size）",
    )
    poster_max_images: int = Field(
        default=6,
        alias="POSTER_MAX_IMAGES",
        description="单次自动生成海报上限（首段跳过后生效）",
    )
    poster_upload_max_bytes: int = Field(
        default=950000,
        alias="POSTER_UPLOAD_MAX_BYTES",
        description="上传微信 uploadimg 前压缩目标字节数，预留余量避免超 1MB 限制",
    )

    im_webhook_url: str | None = Field(default=None, alias="IM_WEBHOOK_URL")
    im_secret: str | None = Field(default=None, alias="IM_SECRET")

    auth_db_path: str = Field(default="./data/app.db", alias="AUTH_DB_PATH")
    auth_cookie_name: str = Field(default="x2ws_session", alias="AUTH_COOKIE_NAME")
    auth_session_ttl_sec: int = Field(default=86400, alias="AUTH_SESSION_TTL_SEC")
    auth_remember_session_ttl_sec: int = Field(default=604800, alias="AUTH_REMEMBER_SESSION_TTL_SEC")
    auth_password_reset_key: str | None = Field(default="x2ws-reset-2026", alias="AUTH_PASSWORD_RESET_KEY")

    vip_trial_tokens: int = Field(
        default=500,
        alias="VIP_TRIAL_TOKENS",
        description="新用户试用赠送 Credits",
    )
    credits_seat_monthly_quota: int = Field(
        default=1500,
        alias="CREDITS_SEAT_MONTHLY_QUOTA",
        description="标准坐席每月 Credits 额度",
    )
    credits_standard_seat_price_cny: float = Field(
        default=198.0,
        alias="CREDITS_STANDARD_SEAT_PRICE_CNY",
        description="标准坐席月费（人民币）",
    )
    vip_rewrite_token_per_1k_chars: int = Field(
        default=1500,
        alias="VIP_REWRITE_TOKEN_PER_1K_CHARS",
        description="兼容字段：改写计费参数（建议使用 Credits 规则字段）",
    )
    vip_image_token_per_image: int = Field(
        default=1500,
        alias="VIP_IMAGE_TOKEN_PER_IMAGE",
        description="兼容字段：生图计费参数（建议使用 Credits 规则字段）",
    )
    credits_per_million_tokens: int = Field(
        default=1500,
        alias="CREDITS_PER_MILLION_TOKENS",
        description="兼容字段：100万 token 对应的 Credits 抵扣（建议使用人民币折算字段）",
    )
    credits_per_120_images: int = Field(
        default=1500,
        alias="CREDITS_PER_120_IMAGES",
        description="兼容字段：120 张图片对应的 Credits 抵扣（建议使用人民币折算字段）",
    )
    credits_token_price_per_million_cny: float = Field(
        default=7.9,
        alias="CREDITS_TOKEN_PRICE_PER_MILLION_CNY",
        description="文本计费：100万 token 的人民币价格",
    )
    credits_image_price_per_image_cny: float = Field(
        default=0.04,
        alias="CREDITS_IMAGE_PRICE_PER_IMAGE_CNY",
        description="兼容字段：生图计费单张价格（建议使用整包折算字段）",
    )
    credits_image_price_package_cny: float = Field(
        default=0.75,
        alias="CREDITS_IMAGE_PRICE_PACKAGE_CNY",
        description="生图计费：图片整包人民币价格",
    )
    credits_image_price_package_images: int = Field(
        default=160,
        alias="CREDITS_IMAGE_PRICE_PACKAGE_IMAGES",
        description="生图计费：整包包含图片张数",
    )
    credits_recharge_package_amount: float = Field(
        default=19.9,
        alias="CREDITS_RECHARGE_PACKAGE_AMOUNT",
        description="标准加油包价格（元）",
    )
    credits_recharge_package_credits: int = Field(
        default=1500,
        alias="CREDITS_RECHARGE_PACKAGE_CREDITS",
        description="标准加油包 Credits 数量",
    )
    platform_openai_api_key: str | None = Field(default=None, alias="PLATFORM_OPENAI_API_KEY")
    platform_openai_base_url: str | None = Field(default=None, alias="PLATFORM_OPENAI_BASE_URL")
    platform_openai_model: str = Field(default="qwen-plus", alias="PLATFORM_OPENAI_MODEL")
    platform_openai_image_model: str = Field(default="wanx2.0-t2i-turbo", alias="PLATFORM_OPENAI_IMAGE_MODEL")
    platform_openai_text_model_options: str = Field(
        default="gpt-4.1-mini,gpt-4.1,gpt-4o-mini,qwen-plus,qwen-max",
        alias="PLATFORM_OPENAI_TEXT_MODEL_OPTIONS",
    )
    platform_openai_image_model_options: str = Field(
        default="wanx2.0-t2i-turbo,wanx2.1-t2i-plus,wanx2.1-t2i-turbo,gpt-image-1,dall-e-3",
        alias="PLATFORM_OPENAI_IMAGE_MODEL_OPTIONS",
    )
    platform_openai_timeout: float = Field(default=120.0, alias="PLATFORM_OPENAI_TIMEOUT")
    platform_openai_max_output_tokens: int = Field(default=8192, alias="PLATFORM_OPENAI_MAX_OUTPUT_TOKENS")
    platform_openai_max_retries: int = Field(default=0, alias="PLATFORM_OPENAI_MAX_RETRIES")
    shop_backend_create_order_url: str | None = Field(default=None, alias="SHOP_BACKEND_CREATE_ORDER_URL")
    shop_backend_callback_token: str = Field(default="", alias="SHOP_BACKEND_CALLBACK_TOKEN")
    super_admin_token: str = Field(default="", alias="SUPER_ADMIN_TOKEN")


settings = Settings()