"""Add scripts table for oral broadcast script library (Issue #1795)

Revision ID: 070_add_scripts
Revises: 069_project_is_default
Create Date: 2026-09-08

新建 scripts 表，支持口播文案 CRUD + 分段存储。
"""

import sqlalchemy as sa

from alembic import op

revision = "070_add_scripts"
down_revision = "069_project_is_default"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "scripts",
        sa.Column("id", sa.String(36), nullable=False),
        sa.Column("user_id", sa.String(36), nullable=False),
        sa.Column("title", sa.String(255), nullable=False),
        sa.Column("content", sa.Text(), nullable=False, server_default=""),
        sa.Column("segments", sa.JSON(), nullable=False, server_default="[]"),
        sa.Column("tags", sa.JSON(), nullable=False, server_default="[]"),
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            nullable=False,
            server_default=sa.func.now(),
        ),
        sa.Column(
            "updated_at",
            sa.DateTime(timezone=True),
            nullable=False,
            server_default=sa.func.now(),
        ),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index("ix_scripts_user_id", "scripts", ["user_id"])


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