"""
支付模块配置（从 payment 迁入 app，从 app.core.config.settings 读取）
"""

from app.core.logging import get_logger
from dataclasses import dataclass, field

logger = get_logger(__name__)


@dataclass
class WeChatPayConfig:
    app_id: str = ""
    mch_id: str = ""
    api_v3_key: str = ""
    private_key_path: str = ""
    private_key: str = ""
    cert_serial_no: str = ""
    notify_url: str = ""
    platform_public_key: str = ""
    platform_public_key_path: str = ""
    platform_public_key_id: str = ""

    @property
    def is_configured(self) -> bool:
        has_key = bool(self.private_key.strip()) or bool(self.private_key_path.strip())
        return all(
            [
                self.app_id,
                self.mch_id,
                self.api_v3_key,
                has_key,
                self.cert_serial_no,
                self.notify_url,
            ]
        )

    @property
    def use_platform_public_key(self) -> bool:
        has_pub = bool(self.platform_public_key.strip()) or bool(
            self.platform_public_key_path.strip()
        )
        return has_pub and bool(self.platform_public_key_id.strip())


@dataclass
class AlipayConfig:
    app_id: str = ""
    private_key: str = ""
    alipay_public_key: str = ""
    notify_url: str = ""
    sign_type: str = "RSA2"

    @property
    def is_configured(self) -> bool:
        return all(
            [
                self.app_id,
                self.private_key,
                self.alipay_public_key,
                self.notify_url,
            ]
        )


@dataclass
class PaymentConfig:
    wechat: WeChatPayConfig = field(default_factory=WeChatPayConfig)
    alipay: AlipayConfig = field(default_factory=AlipayConfig)
    alipay_under_development: bool = True

    @classmethod
    def from_settings(cls, settings) -> "PaymentConfig":
        wechat_private_key = (
            getattr(settings, "wechat_pay_private_key", "") or ""
        ).strip()
        if wechat_private_key:
            wechat_private_key = (
                wechat_private_key.strip('"')
                .strip("'")
                .lstrip("\ufeff")
                .replace("\\n", "\n")
            )
        wechat_platform_pub = (
            getattr(settings, "wechat_pay_platform_public_key", "") or ""
        ).strip()
        if wechat_platform_pub and "\\n" in wechat_platform_pub:
            wechat_platform_pub = wechat_platform_pub.replace("\\n", "\n")
        wechat_private_key_path = (
            getattr(settings, "wechat_pay_private_key_path", "") or ""
        ).strip()
        alipay_under = (
            getattr(settings, "alipay_under_development", "true") or "true"
        ).lower()
        config = cls(
            wechat=WeChatPayConfig(
                app_id=getattr(settings, "wechat_pay_app_id", "") or "",
                mch_id=getattr(settings, "wechat_pay_mch_id", "") or "",
                api_v3_key=getattr(settings, "wechat_pay_api_v3_key", "") or "",
                private_key_path=wechat_private_key_path,
                private_key=wechat_private_key if not wechat_private_key_path else "",
                cert_serial_no=getattr(settings, "wechat_pay_cert_serial_no", "") or "",
                notify_url=getattr(settings, "wechat_pay_notify_url", "") or "",
                platform_public_key=wechat_platform_pub,
                platform_public_key_path=(
                    getattr(settings, "wechat_pay_platform_public_key_path", "") or ""
                ).strip(),
                platform_public_key_id=(
                    getattr(settings, "wechat_pay_platform_public_key_id", "") or ""
                ).strip(),
            ),
            alipay=AlipayConfig(
                app_id=getattr(settings, "alipay_app_id", "") or "",
                private_key=getattr(settings, "alipay_private_key", "") or "",
                alipay_public_key=getattr(settings, "alipay_public_key", "") or "",
                notify_url=getattr(settings, "alipay_notify_url", "") or "",
                sign_type=getattr(settings, "alipay_sign_type", "RSA2") or "RSA2",
            ),
            alipay_under_development=alipay_under in ("true", "1", "yes"),
        )
        return config

    @classmethod
    def from_env(cls) -> "PaymentConfig":
        from app.core.config import settings

        config = cls.from_settings(settings)
        if config.wechat.is_configured:
            mode = (
                "平台公钥模式"
                if config.wechat.use_platform_public_key
                else "平台证书模式"
            )
            key_src = "私钥内容" if config.wechat.private_key.strip() else "私钥路径"
            logger.info(
                "微信支付配置已加载: APP_ID=%s, MCH_ID=%s, 模式=%s, 商户私钥=%s",
                config.wechat.app_id,
                config.wechat.mch_id,
                mode,
                key_src,
            )
        else:
            logger.warning("微信支付配置不完整，微信支付将不可用")
        if config.alipay.is_configured:
            logger.info("支付宝配置已加载: APP_ID=%s", config.alipay.app_id)
        else:
            logger.warning("支付宝配置不完整，支付宝支付将不可用")
        return config