"""业务分组 Schemas"""
from pydantic import BaseModel, Field


class PhaseOption(BaseModel):
    """可选的生命周期阶段 —— 由服务端下发，前端不要写死这两个值"""
    value: str
    label: str


class GroupMemberOut(BaseModel):
    user_id: str          # MOM 短账号（与 Task.assignee_id 同口径）
    display_name: str
    is_leader: bool


class GroupOut(BaseModel):
    id: int
    name: str
    parent_id: int | None = None
    parent_name: str | None = None
    description: str | None = None
    sort_order: int = 0
    is_active: bool = True
    phases: list[str] = []          # 该组自己的可见范围（不含继承）
    effective_phases: list[str] = []  # 实际生效范围（自己没配则取父组的）
    phase_labels: list[str] = []    # 生效范围的中文标签
    member_count: int = 0
    # ---- 当前用户对这个组能做什么（服务端算好，前端别自己推导）----
    can_manage_members: bool = False  # 能加/移成员、设组长
    can_manage_group: bool = False    # 能改组名/范围/启停/删除 —— 仅超管
    is_my_leader: bool = False        # 我是这个组的组长


class GroupDetailOut(GroupOut):
    members: list[GroupMemberOut] = []


class GroupCreate(BaseModel):
    name: str = Field(..., min_length=1, max_length=50, description="分组显示名")
    parent_id: int | None = Field(None, description="上级大组ID；为空则建的是大组")
    description: str | None = Field(None, max_length=200)
    sort_order: int = 0
    phases: list[str] = Field(default_factory=list, description="可见的生命周期阶段")


class GroupUpdate(BaseModel):
    name: str | None = Field(None, min_length=1, max_length=50)
    parent_id: int | None = None
    description: str | None = Field(None, max_length=200)
    sort_order: int | None = None
    is_active: bool | None = None
    phases: list[str] | None = Field(
        None, description="整组覆盖式更新；传 [] 表示清空（此时继承父组）",
    )


class GroupMemberAdd(BaseModel):
    user_id: str = Field(..., min_length=1, max_length=64, description="MOM 账号")
    is_leader: bool = False


class GroupMemberUpdate(BaseModel):
    is_leader: bool


class MemberCandidate(BaseModel):
    username: str      # 短账号，存进组的就是它
    full_name: str     # 真实姓名，仅供界面展示