from enum import Enum as PyEnum

from sqlalchemy import (
    Column,
    DateTime,
    Enum,
    Float,
    ForeignKey,
    Integer,
    String,
    func,
)
from sqlalchemy.dialects.postgresql import UUID
from ._base import Base

class Category(PyEnum):
    TECHNICAL = "TECHNICAL"
    MANAGEMENT = "MANAGEMENT"
    PAST_PERFORMANCE = "PAST_PERFORMANCE"
    PRICE = "PRICE"

class ProposalAIAnalysis(Base):
    __tablename__ = "proposal_ai_analyses"

    id = Column(UUID(as_uuid=True), primary_key=True, nullable=False)
    proposal_id = Column(
        UUID(as_uuid=True),
        ForeignKey("proposals.id", ondelete="CASCADE"),
        nullable=False,
    )
    ai_score = Column(Float, nullable=False)
    created_at = Column(DateTime, nullable=False, default=func.now())
    updated_at = Column(
        DateTime, nullable=False, default=func.now(), onupdate=func.now()
    )


class ProposalStrength(Base):
    __tablename__ = "proposal_strengths"

    id = Column(UUID(as_uuid=True), primary_key=True, nullable=False)
    proposal_id = Column(
        UUID(as_uuid=True),
        ForeignKey("proposals.id", ondelete="CASCADE"),
        nullable=False,
    )
    strength_point = Column(String, nullable=False)
    category = Column(Enum(Category, name="strengthcategory"), nullable=False)
    created_at = Column(DateTime, nullable=False, default=func.now())
    updated_at = Column(
        DateTime, nullable=False, default=func.now(), onupdate=func.now()
    )


class ProposalRejectionReason(Base):
    __tablename__ = "proposal_rejection_reasons"

    id = Column(UUID(as_uuid=True), primary_key=True, nullable=False)
    proposal_id = Column(
        UUID(as_uuid=True),
        ForeignKey("proposals.id", ondelete="CASCADE"),
        nullable=False,
    )
    reason = Column(String, nullable=False)
    category = Column(Enum(Category, name="rejectioncategory"), nullable=False)
    created_at = Column(DateTime, nullable=False, default=func.now())
    updated_at = Column(
        DateTime, nullable=False, default=func.now(), onupdate=func.now()
    )


class ProposalWeakness(Base):
    __tablename__ = "proposal_weaknesses"

    id = Column(UUID(as_uuid=True), primary_key=True, nullable=False)
    proposal_id = Column(
        UUID(as_uuid=True),
        ForeignKey("proposals.id", ondelete="CASCADE"),
        nullable=False,
    )
    weakness_point = Column(String, nullable=False)
    category = Column(Enum(Category, name="weaknesscategory"), nullable=False)
    created_at = Column(DateTime, nullable=False, default=func.now())
    updated_at = Column(
        DateTime, nullable=False, default=func.now(), onupdate=func.now()
    )


class ProposalImprovement(Base):
    __tablename__ = "proposal_improvements"

    id = Column(UUID(as_uuid=True), primary_key=True, nullable=False)
    proposal_id = Column(
        UUID(as_uuid=True),
        ForeignKey("proposals.id", ondelete="CASCADE"),
        nullable=False,
    )
    improvement_point = Column(String, nullable=False)
    category = Column(Enum(Category, name="improvementcategory"), nullable=False)
    created_at = Column(DateTime, nullable=False, default=func.now())
    updated_at = Column(
        DateTime, nullable=False, default=func.now(), onupdate=func.now()
    )