"""Add conversation_verification table

Revision ID: 0023_add_conversation_verification
Revises: 0022_merge_fts_and_whatsapp
Create Date: 2026-03-17 12:00:00.000000

"""

from collections.abc import Sequence

import sqlalchemy as sa

from alembic import op

# revision identifiers, used by Alembic.
revision: str = "0023_add_conversation_verification"
down_revision: str | None = "0022_merge_fts_and_whatsapp"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "conversation_verification",
        sa.Column("id", sa.String, primary_key=True),
        sa.Column(
            "conversation_id",
            sa.String,
            sa.ForeignKey("conversation.id", ondelete="CASCADE"),
            nullable=False,
        ),
        sa.Column("email", sa.String, nullable=False),
        sa.Column("code_hash", sa.String, nullable=False),
        sa.Column("created_at", sa.DateTime, nullable=False),
        sa.Column("expires_at", sa.DateTime, nullable=False),
        sa.Column("attempts", sa.Integer, nullable=False, server_default="0"),
        sa.Column("verified_at", sa.DateTime, nullable=True),
    )
    op.create_index(
        "ix_conversation_verification_conversation_id",
        "conversation_verification",
        ["conversation_id"],
    )


def downgrade() -> None:
    op.drop_index(
        "ix_conversation_verification_conversation_id",
        table_name="conversation_verification",
    )
    op.drop_table("conversation_verification")