"""create detected changes

Revision ID: cb61ba9570fb
Revises: 8ceefbd0a6a5
Create Date: 2026-07-31 19:34:49.775190

"""

from __future__ import annotations

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "cb61ba9570fb"
down_revision: str | None = "8ceefbd0a6a5"
branch_labels: Sequence[str] | str | None = None
depends_on: Sequence[str] | str | None = None


def upgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table(
        "detected_changes",
        sa.Column("company_id", sa.Uuid(), nullable=False),
        sa.Column("source_id", sa.Uuid(), nullable=False),
        sa.Column("monitoring_run_id", sa.Uuid(), nullable=False),
        sa.Column("previous_snapshot_id", sa.Uuid(), nullable=True),
        sa.Column("current_snapshot_id", sa.Uuid(), nullable=False),
        sa.Column(
            "change_type",
            sa.Enum(
                "NEW_DOCUMENT",
                "REMOVED_DOCUMENT",
                "CONTENT_MODIFIED",
                "PRICE_CHANGE",
                "LEADERSHIP_CHANGE",
                "FILING_NEW",
                name="changetype",
                native_enum=False,
                length=30,
            ),
            nullable=False,
        ),
        sa.Column("raw_diff", sa.JSON(), nullable=False),
        sa.Column("significance_score", sa.Float(), nullable=False),
        sa.Column("confidence_score", sa.Float(), nullable=False),
        sa.Column(
            "severity",
            sa.Enum(
                "CRITICAL",
                "HIGH",
                "MEDIUM",
                "LOW",
                name="severitylevel",
                native_enum=False,
                length=20,
            ),
            nullable=False,
        ),
        sa.Column(
            "status",
            sa.Enum(
                "NEW",
                "ACKNOWLEDGED",
                "DISMISSED",
                name="changestatus",
                native_enum=False,
                length=20,
            ),
            nullable=False,
        ),
        sa.Column("summary", sa.String(length=500), nullable=False),
        sa.Column("id", sa.Uuid(), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
        sa.ForeignKeyConstraint(["company_id"], ["companies.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["current_snapshot_id"], ["snapshots.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["monitoring_run_id"], ["monitoring_runs.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["previous_snapshot_id"], ["snapshots.id"], ondelete="SET NULL"),
        sa.ForeignKeyConstraint(["source_id"], ["sources.id"], ondelete="CASCADE"),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint("id"),
    )
    op.create_index(
        op.f("ix_detected_changes_company_id"), "detected_changes", ["company_id"], unique=False
    )
    op.create_index(
        op.f("ix_detected_changes_monitoring_run_id"),
        "detected_changes",
        ["monitoring_run_id"],
        unique=False,
    )
    op.create_index(
        op.f("ix_detected_changes_source_id"), "detected_changes", ["source_id"], unique=False
    )
    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_index(op.f("ix_detected_changes_source_id"), table_name="detected_changes")
    op.drop_index(op.f("ix_detected_changes_monitoring_run_id"), table_name="detected_changes")
    op.drop_index(op.f("ix_detected_changes_company_id"), table_name="detected_changes")
    op.drop_table("detected_changes")
    # ### end Alembic commands ###