"""Add tangki_produk_history table.

Revision ID: s5c6d7e8f9a0
Revises: r4b5c6d7e8f9
Create Date: 2026-04-03
"""

from alembic import op
import sqlalchemy as sa

revision = "s5c6d7e8f9a0"
down_revision = "r4b5c6d7e8f9"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "tangki_produk_history",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("tangki_id", sa.Integer(), sa.ForeignKey("master_spbu_tangki.id", ondelete="CASCADE"), nullable=False),
        sa.Column("produk_id", sa.Integer(), sa.ForeignKey("master_produk.id", ondelete="CASCADE"), nullable=False),
        sa.Column("berlaku_mulai", sa.Date(), nullable=False),
        sa.Column("berlaku_sampai", sa.Date(), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), onupdate=sa.func.now(), nullable=False),
    )
    op.create_index("ix_tangki_produk_history_tangki_id", "tangki_produk_history", ["tangki_id"])


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