from __future__ import annotations

from sqlalchemy import Boolean, ForeignKey, Integer, JSON, String, Text, UniqueConstraint
from sqlalchemy.orm import Mapped, mapped_column

from admin_app.db.models.base import AdminTimestampedModel
from admin_app.db.models.tool_draft import ToolLifecycleStatusType
from shared.contracts import ToolLifecycleStatus


class ToolVersion(AdminTimestampedModel):
    __tablename__ = "tool_versions"
    __table_args__ = (
        UniqueConstraint(
            "tool_name",
            "version_number",
            name="uq_tool_versions_tool_name_version_number",
        ),
    )

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    version_id: Mapped[str] = mapped_column(String(120), unique=True, index=True, nullable=False)
    draft_id: Mapped[int] = mapped_column(
        Integer,
        ForeignKey("tool_drafts.id"),
        nullable=False,
        index=True,
    )
    tool_name: Mapped[str] = mapped_column(String(64), index=True, nullable=False)
    version_number: Mapped[int] = mapped_column(Integer, nullable=False)
    status: Mapped[ToolLifecycleStatus] = mapped_column(
        ToolLifecycleStatusType(),
        nullable=False,
        default=ToolLifecycleStatus.DRAFT,
        index=True,
    )
    summary: Mapped[str] = mapped_column(Text, nullable=False)
    description: Mapped[str] = mapped_column(Text, nullable=False)
    business_goal: Mapped[str] = mapped_column(Text, nullable=False)
    parameters_json: Mapped[list[dict]] = mapped_column(JSON, nullable=False, default=list)
    required_parameter_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    requires_director_approval: Mapped[bool] = mapped_column(
        Boolean,
        nullable=False,
        default=True,
    )
    generation_model: Mapped[str | None] = mapped_column(String(120), nullable=True)
    owner_staff_account_id: Mapped[int] = mapped_column(
        Integer,
        ForeignKey("staff_accounts.id"),
        nullable=False,
        index=True,
    )
    owner_display_name: Mapped[str] = mapped_column(String(150), nullable=False)