"""营销人员的请求/响应模型（需求 2.1.1）。"""

from datetime import date
from decimal import Decimal, InvalidOperation

from pydantic import BaseModel, ConfigDict, Field, field_validator

from app.core.response import PageQuery

# salary_standard 列为 Numeric(12,2)：整数部分最多 10 位。
# 工资系统金额红线——入参出参一律 str，服务层转 Decimal，全程不经 float
SALARY_MAX = Decimal("9999999999.99")


class PersonnelRegionOut(BaseModel):
    """辐射区域条目响应。"""

    model_config = ConfigDict(from_attributes=True)

    id: int
    region_name: str
    remark: str | None = None


class PersonnelPlanOut(BaseModel):
    """拓展计划条目响应。"""

    model_config = ConfigDict(from_attributes=True)

    id: int
    plan_period: str
    plan_content: str
    target_desc: str | None = None


class PersonnelOut(BaseModel):
    """人员响应（列表与写操作回包共用）。"""

    model_config = ConfigDict(from_attributes=True)

    id: int
    personnel_name: str
    business_role_id: int
    role_name: str | None = None
    manager_id: int | None = None
    manager_name: str | None = None
    phone: str | None = None
    hire_date: date | None = None
    is_probation: int = 0
    salary_standard: str | None = None
    status: int = 1
    remark: str | None = None


class PersonnelDetailOut(PersonnelOut):
    """人员详情：附区域与拓展计划，供编辑抽屉一次回显。"""

    regions: list[PersonnelRegionOut] = Field(default_factory=list)
    plans: list[PersonnelPlanOut] = Field(default_factory=list)


class PersonnelCreateIn(BaseModel):
    """新增人员。"""

    model_config = ConfigDict(str_strip_whitespace=True)

    personnel_name: str = Field(min_length=1, max_length=64, description="姓名")
    business_role_id: int = Field(ge=1, description="岗位角色ID")
    manager_id: int | None = Field(default=None, ge=1, description="直属营销经理ID，空=无")
    phone: str | None = Field(default=None, max_length=20, description="联系电话")
    hire_date: date | None = Field(default=None, description="入职日期，ISO 格式")
    is_probation: int = Field(default=0, ge=0, le=1, description="是否试用期：1是 0否")
    salary_standard: str | None = Field(
        default=None, description="月工资标准（元），字符串形式的数字"
    )
    remark: str | None = Field(default=None, max_length=255)

    @field_validator("salary_standard")
    @classmethod
    def _check_salary_standard(cls, value: str | None) -> str | None:
        """按 Numeric(12,2) 的容量校验字符串金额。

        金额以字符串进出避免 float 精度损失（项目金额红线）；
        小数位超过两位直接拒绝而非静默舍入——舍入即算错钱。
        """
        if value is None:
            return None
        try:
            amount = Decimal(value)
        except InvalidOperation:
            raise ValueError("工资标准须为有效数字") from None
        if not amount.is_finite():
            raise ValueError("工资标准须为有效数字")
        if amount < 0:
            raise ValueError("工资标准不能为负数")
        if amount > SALARY_MAX:
            raise ValueError("工资标准超出可录入上限")
        if -amount.as_tuple().exponent > 2:
            raise ValueError("工资标准最多两位小数")
        return value


class PersonnelUpdateIn(PersonnelCreateIn):
    """编辑人员，全量提交、全量替换（不含状态，状态走独立接口）。"""


class PersonnelStatusIn(BaseModel):
    """在职/离职切换。"""

    status: int = Field(ge=0, le=1, description="1在职 0离职")


class RegionItemIn(BaseModel):
    """辐射区域条目。"""

    model_config = ConfigDict(str_strip_whitespace=True)

    region_name: str = Field(min_length=1, max_length=128, description="区域名称")
    remark: str | None = Field(default=None, max_length=255)


class RegionReplaceIn(BaseModel):
    """辐射区域全量替换。空列表即清空该人员的全部区域。"""

    items: list[RegionItemIn] = Field(default_factory=list, description="全量条目")


class PlanItemIn(BaseModel):
    """拓展计划条目。"""

    model_config = ConfigDict(str_strip_whitespace=True)

    plan_period: str = Field(min_length=1, max_length=32, description="计划期间，如 2026Q1")
    plan_content: str = Field(min_length=1, max_length=500, description="计划内容")
    target_desc: str | None = Field(default=None, max_length=255, description="指标说明")


class PlanReplaceIn(BaseModel):
    """拓展计划全量替换。空列表即清空该人员的全部计划。"""

    items: list[PlanItemIn] = Field(default_factory=list, description="全量条目")


class PersonnelQuery(PageQuery):
    """人员列表查询条件。"""

    keyword: str | None = Field(default=None, max_length=64, description="姓名，模糊匹配")
    status: int | None = Field(default=None, ge=0, le=1, description="状态筛选：1在职 0离职")
    business_role_id: int | None = Field(default=None, ge=1, description="岗位筛选")