"""add_ticket_issues

Revision ID: b2dcb926e091
Revises: 46bccd948688
Create Date: 2026-03-17 16:25:34.452826

"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

revision = 'b2dcb926e091'
down_revision = '46bccd948688'
branch_labels = None
depends_on = None


def upgrade() -> None:
    conn = op.get_bind()
    inspector = sa.inspect(conn)
    existing_tables = inspector.get_table_names()

    if 'ticket_issues' not in existing_tables:
        op.create_table(
            'ticket_issues',
            sa.Column('id', sa.UUID(), nullable=False),
            sa.Column('tenant_id', sa.UUID(), nullable=False),
            sa.Column('ticket_id', sa.UUID(), nullable=False),
            sa.Column('created_by', sa.UUID(), nullable=False),
            sa.Column('content', sa.Text(), nullable=False),
            sa.Column(
                'priority',
                postgresql.ENUM('LOW', 'MEDIUM', 'HIGH', 'URGENT',
                                name='ticket_priority_enum', create_type=False),
                nullable=False,
            ),
            sa.Column('attachment_path', sa.String(500), nullable=True),
            sa.Column('attachment_filename', sa.String(255), nullable=True),
            sa.Column('attachment_mime_type', sa.String(100), nullable=True),
            sa.Column('created_at', postgresql.TIMESTAMP(timezone=True),
                      server_default=sa.text('now()'), nullable=False),
            sa.Column('updated_at', postgresql.TIMESTAMP(timezone=True),
                      server_default=sa.text('now()'), nullable=False),
            sa.ForeignKeyConstraint(['tenant_id'], ['tenants.id'], ondelete='CASCADE'),
            sa.ForeignKeyConstraint(['ticket_id'], ['tickets.id'], ondelete='CASCADE'),
            sa.ForeignKeyConstraint(['created_by'], ['users.id']),
            sa.PrimaryKeyConstraint('id'),
        )

    if 'ticket_issue_tagged_users' not in existing_tables:
        op.create_table(
            'ticket_issue_tagged_users',
            sa.Column('issue_id', sa.UUID(), nullable=False),
            sa.Column('user_id', sa.UUID(), nullable=False),
            sa.ForeignKeyConstraint(['issue_id'], ['ticket_issues.id'], ondelete='CASCADE'),
            sa.ForeignKeyConstraint(['user_id'], ['users.id'], ondelete='CASCADE'),
            sa.PrimaryKeyConstraint('issue_id', 'user_id'),
        )


def downgrade() -> None:
    op.drop_table('ticket_issue_tagged_users')
    op.drop_table('ticket_issues')