"""项目相关 Schema"""
from pydantic import BaseModel
from datetime import date, datetime
from app.models.production import ProjectStatus


class ProjectBase(BaseModel):
    """项目基础 Schema"""
    project_no: str
    name: str
    start_date: date | None = None
    end_date: date | None = None
    status: ProjectStatus = ProjectStatus.DRAFT


class ProjectCreate(ProjectBase):
    """创建项目"""
    pass


class ProjectUpdate(BaseModel):
    """更新项目"""
    name: str | None = None
    start_date: date | None = None
    end_date: date | None = None
    status: ProjectStatus | None = None


class ProjectResponse(ProjectBase):
    """项目响应"""
    id: int
    created_at: datetime
    updated_at: datetime | None

    class Config:
        from_attributes = True


class ProjectStats(BaseModel):
    """项目统计信息"""
    project_id: int
    project_no: str
    project_name: str
    status: ProjectStatus
    start_date: date | None
    end_date: date | None

    # 进度相关
    total_work_orders: int
    completed_work_orders: int
    in_progress_work_orders: int
    pending_work_orders: int
    progress_percentage: float  # 完成百分比

    # 物料到位率（基于缺料审批）
    total_approvals: int
    pending_approvals: int
    approved_approvals: int
    rejected_approvals: int
    material_ready_rate: float  # 物料到位率 (approved / total_approvals * 100)

    # 延期预警
    is_overdue: bool  # 当前日期超过 end_date 且状态未完成
    overdue_days: int | None  # 延期天数（正数表示延期，负数表示提前）

    created_at: datetime


class ProjectSummary(BaseModel):
    """项目总览汇总"""
    total_projects: int
    active_projects: int
    completed_projects: int
    overdue_projects: int

    # 全局统计
    total_work_orders: int
    completed_work_orders: int
    overall_progress: float  # 全局进度

    total_pending_approvals: int
    overall_material_ready_rate: float

    # 项目列表
    projects: list[ProjectStats]