"""Add quota tables

Revision ID: 005_quota
Revises: 004_charging
Create Date: 2026-04-03
"""
from alembic import op
import sqlalchemy as sa

revision = "005_quota"
down_revision = "004_charging"
branch_labels = None
depends_on = None


def upgrade() -> None:
    # --- energy_quotas ---
    op.create_table(
        "energy_quotas",
        sa.Column("id", sa.Integer, primary_key=True, autoincrement=True),
        sa.Column("name", sa.String(200), nullable=False),
        sa.Column("target_type", sa.String(50), nullable=False),
        sa.Column("target_id", sa.Integer, nullable=False),
        sa.Column("energy_type", sa.String(50), nullable=False),
        sa.Column("period", sa.String(20), nullable=False),
        sa.Column("quota_value", sa.Float, nullable=False),
        sa.Column("unit", sa.String(20), default="kWh"),
        sa.Column("warning_threshold_pct", sa.Float, default=80),
        sa.Column("alert_threshold_pct", sa.Float, default=95),
        sa.Column("is_active", sa.Boolean, default=True),
        sa.Column("created_by", sa.Integer, sa.ForeignKey("users.id")),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
    )

    # --- quota_usage ---
    op.create_table(
        "quota_usage",
        sa.Column("id", sa.Integer, primary_key=True, autoincrement=True),
        sa.Column("quota_id", sa.Integer, sa.ForeignKey("energy_quotas.id"), nullable=False),
        sa.Column("period_start", sa.DateTime(timezone=True), nullable=False),
        sa.Column("period_end", sa.DateTime(timezone=True), nullable=False),
        sa.Column("actual_value", sa.Float, default=0),
        sa.Column("quota_value", sa.Float, nullable=False),
        sa.Column("usage_rate_pct", sa.Float, default=0),
        sa.Column("status", sa.String(20), default="normal"),
        sa.Column("calculated_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
    )


def downgrade() -> None:
    op.drop_table("quota_usage")
    op.drop_table("energy_quotas")