"""市场分析结果模型

存储项目的市场价格分析结果
"""

from typing import TYPE_CHECKING
from decimal import Decimal
from datetime import date

from sqlalchemy import BigInteger, Integer, Date, DECIMAL, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.models.base import BaseModel

if TYPE_CHECKING:
    from app.models.project import Project


class MarketAnalysisResult(BaseModel):
    """市场分析结果表"""
    
    __tablename__ = "market_analysis_results"
    
    project_id: Mapped[int] = mapped_column(
        BigInteger,
        ForeignKey("projects.id", ondelete="CASCADE"),
        nullable=False,
        index=True,
        comment="项目ID"
    )
    analysis_date: Mapped[date] = mapped_column(
        Date,
        nullable=False,
        index=True,
        comment="分析日期"
    )
    competitor_count: Mapped[int] = mapped_column(
        Integer,
        nullable=False,
        comment="样本竞品数量"
    )
    market_min_price: Mapped[Decimal] = mapped_column(
        DECIMAL(12, 2),
        nullable=False,
        comment="市场最低价"
    )
    market_max_price: Mapped[Decimal] = mapped_column(
        DECIMAL(12, 2),
        nullable=False,
        comment="市场最高价"
    )
    market_avg_price: Mapped[Decimal] = mapped_column(
        DECIMAL(12, 2),
        nullable=False,
        comment="市场均价"
    )
    market_median_price: Mapped[Decimal] = mapped_column(
        DECIMAL(12, 2),
        nullable=False,
        comment="市场中位价"
    )
    suggested_range_min: Mapped[Decimal] = mapped_column(
        DECIMAL(12, 2),
        nullable=False,
        comment="建议区间下限"
    )
    suggested_range_max: Mapped[Decimal] = mapped_column(
        DECIMAL(12, 2),
        nullable=False,
        comment="建议区间上限"
    )
    
    # 关系
    project: Mapped["Project"] = relationship(
        "Project"
    )