"""add suggestions table

Revision ID: e5f7a9b1cd35
Revises: e5f7a9b1cd34
Create Date: 2025-01-20 10:00:00.000000
"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import UUID, JSONB

# revision identifiers
revision = "e5f7a9b1cd35"
down_revision = "e5f7a9b1cd34"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "suggestions",
        sa.Column("id", UUID(as_uuid=True), primary_key=True),
        sa.Column("brand_id", UUID(as_uuid=True), sa.ForeignKey("brands.id", ondelete="CASCADE"), nullable=False),
        sa.Column("type", sa.String(50), nullable=False, comment="建议类型"),
        sa.Column("priority", sa.String(20), nullable=False, server_default="medium", comment="优先级"),
        sa.Column("title", sa.String(200), nullable=False),
        sa.Column("description", sa.Text, nullable=False),
        sa.Column("action", sa.Text, nullable=True, comment="具体操作步骤"),
        sa.Column("expected_impact", sa.String(200), nullable=True, comment="预期效果"),
        sa.Column("difficulty", sa.String(20), nullable=False, server_default="medium", comment="难度"),
        sa.Column("status", sa.String(20), nullable=False, server_default="pending", comment="状态"),
        sa.Column("generated_at", sa.DateTime, server_default=sa.func.now(), nullable=False),
        sa.Column("updated_at", sa.DateTime, server_default=sa.func.now(), onupdate=sa.func.now(), nullable=False),
        sa.Column("batch_id", UUID(as_uuid=True), nullable=False),
        sa.Column("source", sa.String(20), nullable=False, server_default="rule", comment="生成来源"),
    )

    op.create_index("idx_suggestions_brand_id", "suggestions", ["brand_id"])
    op.create_index("idx_suggestions_status", "suggestions", ["status"])
    op.create_index("idx_suggestions_type", "suggestions", ["type"])
    op.create_index("idx_suggestions_batch_id", "suggestions", ["batch_id"])
    op.create_index("idx_suggestions_brand_status", "suggestions", ["brand_id", "status"])


def downgrade() -> None:
    op.drop_index("idx_suggestions_brand_status", table_name="suggestions")
    op.drop_index("idx_suggestions_batch_id", table_name="suggestions")
    op.drop_index("idx_suggestions_type", table_name="suggestions")
    op.drop_index("idx_suggestions_status", table_name="suggestions")
    op.drop_index("idx_suggestions_brand_id", table_name="suggestions")
    op.drop_table("suggestions")
