from datetime import datetime
from typing import Optional

from pydantic import BaseModel, ConfigDict, Field, model_validator


class StandardConditionInfoSchema(BaseModel):
    """使用规则因子"""

    rule_factor: str = Field(description="条件类型")
    rule_value: str = Field(description="条件值")
    rule_operator: Optional[str] = Field(
        default=None, description="操作符: LT(<)/LE(<=)/EQ(=)/NE(!=)/GE(>=)/GT(>)"
    )
    rule_name: Optional[str] = Field(default=None, description="条件名称")


class AssetShareSourceInfoSchema(BaseModel):
    """资产共享源信息"""

    share_mode: str = Field(description="共享模式")
    source_id_list: list[str] = Field(description="源ID列表")


class ExpenseRuleCreateSchema(BaseModel):
    """创建费控使用规则请求 (alipay.ebpp.invoice.institution.expenserule.create)"""

    institution_id: str = Field(description="制度ID (必填)")
    standard_name: str = Field(max_length=20, description="费控规则名称 (必填)")
    standard_desc: Optional[str] = Field(default=None, description="规则描述")
    expense_type_sub_category: str = Field(
        description="费用类型子类 (必填): TAKE_AWAY(外卖)/REACH_SHOP(到店)/METRO(地铁)"
    )
    standard_condition_info_list: list[StandardConditionInfoSchema] = Field(
        description="使用规则因子列表 (必填)"
    )
    enterprise_id: Optional[str] = Field(default=None, description="企业码ID")
    account_id: Optional[str] = Field(default=None, description="企业共同账户ID (已废弃)")
    agreement_no: Optional[str] = Field(default=None, description="授权签约协议号 (已废弃)")
    outer_source_id: Optional[str] = Field(default=None, description="外部唯一标识(幂等)")
    open_rule_id: Optional[str] = Field(default=None, description="开票规则ID")
    payment_policy: Optional[str] = Field(
        default=None, description="支付策略: PERSONAL(全部个人账户)/COMBINATION(组合支付)"
    )
    consume_mode: Optional[str] = Field(
        default=None, description="消费模式: COUPON_ONLY/COUPON_AND_CAP/DEFAULT"
    )
    expense_cert_type: Optional[str] = Field(default=None, description="费用凭证类型")
    personal_qrcode_mode: Optional[int] = Field(default=None, description="个人二维码模式")
    asset_share_source_info: Optional[AssetShareSourceInfoSchema] = Field(default=None, description="资产共享源信息")


class ExpenseRuleDeleteSchema(BaseModel):
    """删除费控使用规则请求"""

    institution_id: str = Field(description="制度ID")
    standard_id_list: list[str] = Field(description="使用规则ID列表")
    enterprise_id: str = Field(description="企业ID")


class ExpenseRuleModifySchema(BaseModel):
    """编辑费控使用规则请求"""

    institution_id: str = Field(description="制度ID")
    standard_id: str = Field(description="使用规则ID")
    action: str = Field(description="操作类型")
    standard_name: Optional[str] = Field(default=None, description="规则名称")
    standard_desc: Optional[str] = Field(default=None, description="规则描述")
    expense_type_sub_category: Optional[str] = Field(default=None, description="费用类型子类")
    standard_condition_info_list: Optional[list[StandardConditionInfoSchema]] = Field(
        default=None, description="使用规则因子列表"
    )
    enterprise_id: Optional[str] = Field(default=None, description="企业ID")
    outer_source_id: Optional[str] = Field(default=None, description="外部唯一标识")
    open_rule_id: Optional[str] = Field(default=None, description="开票规则ID")
    payment_policy: Optional[str] = Field(default=None, description="支付策略")
    consume_mode: Optional[str] = Field(default=None, description="消费模式")
    expense_cert_type: Optional[str] = Field(default=None, description="凭证类型")


class RuleCreateSchema(BaseModel):
    """创建使用规则请求"""

    institution_id: str = Field(description="制度ID")
    standard_name: str = Field(max_length=20, description="规则名称")
    standard_desc: Optional[str] = Field(default=None, description="规则描述")
    expense_type_sub_category: str = Field(description="费用类型子类")
    enterprise_id: Optional[str] = Field(default=None, description="企业ID")


class RuleOperationOutSchema(BaseModel):
    """使用规则操作响应"""

    out_biz_no: str = Field(description="外部业务编号")
    rule_id: Optional[str] = Field(default=None, description="规则ID")
    result: Optional[str] = Field(default=None, description="操作结果")


class RuleListOutSchema(BaseModel):
    """使用规则列表响应"""

    model_config = ConfigDict(from_attributes=True)

    id: int = Field(description="主键ID")
    out_biz_no: str = Field(description="外部业务编号")
    institution_id: str = Field(description="制度ID")
    rule_id: Optional[str] = Field(default=None, description="规则ID")
    standard_name: Optional[str] = Field(default=None, description="规则名称")
    expense_type_sub_category: Optional[str] = Field(default=None, description="费用类型子类")
    status: Optional[str] = Field(default=None, description="状态")
    enterprise_id: Optional[str] = Field(default=None, description="企业ID")
    single_limit: Optional[float] = Field(default=None, description="单笔限额")
    max_day_amount: Optional[float] = Field(default=None, description="日限额")
    max_month_amount: Optional[float] = Field(default=None, description="月限额")
    max_quarter_amount: Optional[float] = Field(default=None, description="季限额")
    max_year_amount: Optional[float] = Field(default=None, description="年限额")
    condition_info: Optional[list] = Field(default=None, description="规则条件列表")
    created_time: Optional[datetime] = Field(default=None, description="创建时间")
    updated_time: Optional[datetime] = Field(default=None, description="更新时间")

    @model_validator(mode="after")
    def extract_period_limits(self):
        """从 condition_info 中提取日/月/季/年限额"""
        if not self.condition_info:
            return self
        for cond in self.condition_info:
            factor = cond.get("rule_factor")
            try:
                value = float(cond.get("rule_value", 0))
            except (ValueError, TypeError):
                continue
            if factor == "QUOTA_DAY":
                self.max_day_amount = value
            elif factor == "QUOTA_MONTH":
                self.max_month_amount = value
            elif factor == "QUOTA_QUARTER":
                self.max_quarter_amount = value
            elif factor == "QUOTA_YEAR":
                self.max_year_amount = value
        return self


class RuleOutSchema(BaseModel):
    """使用规则详情响应"""

    model_config = ConfigDict(from_attributes=True)

    out_biz_no: str = Field(description="外部业务编号")
    institution_id: str = Field(description="制度ID")
    rule_id: Optional[str] = Field(default=None, description="规则ID")
    standard_name: Optional[str] = Field(default=None, description="规则名称")
    standard_desc: Optional[str] = Field(default=None, description="规则描述")
    expense_type_sub_category: Optional[str] = Field(default=None, description="费用类型子类")
    enterprise_id: Optional[str] = Field(default=None, description="企业ID")
    status: Optional[str] = Field(default=None, description="状态")


class RuleUpdateSchema(BaseModel):
    """更新使用规则请求"""

    institution_id: Optional[str] = Field(default=None, description="制度ID")
    standard_name: Optional[str] = Field(default=None, description="规则名称")
    standard_desc: Optional[str] = Field(default=None, description="规则描述")
    expense_type_sub_category: Optional[str] = Field(default=None, description="费用类型子类")
    status: Optional[str] = Field(default=None, description="状态")
    enterprise_id: Optional[str] = Field(default=None, description="企业ID")