"""
儀表板 Schemas
"""
from datetime import datetime
from typing import Optional, List
from pydantic import BaseModel


class ProgressStats(BaseModel):
    """進度統計"""

    total: int
    draft: int
    pending: int
    approved: int
    self_eval: int
    manager_eval: int
    completed: int


class DistributionItem(BaseModel):
    """分佈項目"""

    label: str
    count: int
    percentage: float


class TrendItem(BaseModel):
    """趨勢項目"""

    period: str
    average_score: float
    completed_count: int


class DashboardAlertResponse(BaseModel):
    """儀表板警示回應"""

    id: int
    alert_type: str
    severity: str
    title: str
    description: Optional[str]
    related_sheet_id: Optional[int]
    related_employee_id: Optional[int]
    is_resolved: bool
    created_at: datetime

    class Config:
        from_attributes = True


class DashboardProgressResponse(BaseModel):
    """儀表板進度回應"""

    period_code: str
    period_name: str
    stats: ProgressStats
    completion_rate: float


class DashboardDistributionResponse(BaseModel):
    """儀表板分佈回應"""

    by_department: List[DistributionItem]
    by_status: List[DistributionItem]
    by_score_range: List[DistributionItem]


class DashboardTrendsResponse(BaseModel):
    """儀表板趨勢回應"""

    trends: List[TrendItem]