"""Prompt media assets: images, audio, files uploaded with builder prompts.

Revision ID: 025
Revises: 024
Create Date: 2026-04-03
"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import UUID

revision = "025"
down_revision = "024"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "prompt_media_assets",
        sa.Column("id", UUID(as_uuid=True), primary_key=True),
        sa.Column("project_id", UUID(as_uuid=True), sa.ForeignKey("projects.id", ondelete="CASCADE"), nullable=False),
        sa.Column("prompt_id", UUID(as_uuid=True), sa.ForeignKey("prompts.id", ondelete="SET NULL"), nullable=True),
        sa.Column("uploaded_by", UUID(as_uuid=True), sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
        sa.Column("kind", sa.String(20), nullable=False),
        sa.Column("storage_relative_path", sa.String(512), nullable=False),
        sa.Column("original_filename", sa.String(255), nullable=False),
        sa.Column("mime_type", sa.String(120), nullable=False),
        sa.Column("byte_size", sa.BigInteger(), nullable=False),
        sa.Column("transcript", sa.Text(), nullable=True),
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            server_default=sa.text("now()"),
            nullable=False,
        ),
    )
    op.create_index(
        "ix_prompt_media_assets_project_id",
        "prompt_media_assets",
        ["project_id"],
    )
    op.create_index(
        "ix_prompt_media_assets_prompt_id",
        "prompt_media_assets",
        ["prompt_id"],
    )


def downgrade() -> None:
    op.drop_index("ix_prompt_media_assets_prompt_id", table_name="prompt_media_assets")
    op.drop_index("ix_prompt_media_assets_project_id", table_name="prompt_media_assets")
    op.drop_table("prompt_media_assets")