"""Govern external creative resources, measurements, and action attestations.

Revision ID: 20260909_0031
Revises: 20260909_0030
"""

import sqlalchemy as sa

from alembic import op

revision = "20260909_0031"
down_revision = "20260909_0030"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "external_creative_resources",
        sa.Column("id", sa.Uuid(), primary_key=True),
        sa.Column(
            "project_id",
            sa.Uuid(),
            sa.ForeignKey("projects.id", ondelete="RESTRICT"),
            nullable=False,
        ),
        sa.Column("resource_ref", sa.String(255), nullable=False),
        sa.Column("workload", sa.String(16), nullable=False),
        sa.Column("provider_resource_id", sa.String(128), nullable=False),
        sa.Column("approved", sa.Boolean(), nullable=False, server_default=sa.false()),
        sa.Column("configured_vram_bytes", sa.BigInteger(), nullable=False),
        sa.Column("measured_peak_vram_bytes", sa.BigInteger()),
        sa.Column("measurement_count", sa.Integer(), nullable=False, server_default="0"),
        sa.Column(
            "updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()
        ),
        sa.UniqueConstraint(
            "project_id",
            "resource_ref",
            "workload",
            "provider_resource_id",
            name="uq_external_creative_resource_binding",
        ),
        sa.CheckConstraint("configured_vram_bytes > 0", name="ck_external_resource_vram_positive"),
    )
    op.create_index(
        "ix_external_creative_resources_project",
        "external_creative_resources",
        ["project_id", "approved"],
    )
    op.create_table(
        "external_creative_action_attestations",
        sa.Column("id", sa.Uuid(), primary_key=True),
        sa.Column(
            "allocation_id",
            sa.Uuid(),
            sa.ForeignKey("external_creative_allocations.id", ondelete="RESTRICT"),
            nullable=False,
        ),
        sa.Column("action", sa.String(64), nullable=False),
        sa.Column("before_vram_bytes", sa.BigInteger(), nullable=False),
        sa.Column("after_vram_bytes", sa.BigInteger(), nullable=False),
        sa.Column("observed_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("validated", sa.Boolean(), nullable=False),
        sa.Column(
            "created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()
        ),
        sa.UniqueConstraint(
            "allocation_id", "action", name="uq_external_creative_action_attestation"
        ),
        sa.CheckConstraint(
            "before_vram_bytes >= 0 AND after_vram_bytes >= 0",
            name="ck_external_action_vram_nonnegative",
        ),
    )
    op.create_table(
        "external_creative_profile_observations",
        sa.Column("id", sa.Uuid(), primary_key=True),
        sa.Column(
            "allocation_id",
            sa.Uuid(),
            sa.ForeignKey("external_creative_allocations.id", ondelete="RESTRICT"),
            nullable=False,
        ),
        sa.Column("resource_ref", sa.String(255), nullable=False),
        sa.Column("provider_resource_id", sa.String(128), nullable=False),
        sa.Column("workload", sa.String(16), nullable=False),
        sa.Column("observed_peak_vram_bytes", sa.BigInteger(), nullable=False),
        sa.Column("reserved_vram_bytes", sa.BigInteger(), nullable=False),
        sa.Column("duration_ms", sa.BigInteger(), nullable=False),
        sa.Column("outcome", sa.String(16), nullable=False),
        sa.Column(
            "created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()
        ),
        sa.UniqueConstraint(
            "allocation_id", name="uq_external_creative_profile_observation_allocation"
        ),
        sa.CheckConstraint(
            "observed_peak_vram_bytes > 0 AND reserved_vram_bytes > 0",
            name="ck_external_profile_vram_positive",
        ),
        sa.CheckConstraint(
            "duration_ms >= 0 AND duration_ms <= 604800000", name="ck_external_profile_duration"
        ),
    )


def downgrade() -> None:
    op.drop_table("external_creative_profile_observations")
    op.drop_table("external_creative_action_attestations")
    op.drop_index(
        "ix_external_creative_resources_project", table_name="external_creative_resources"
    )
    op.drop_table("external_creative_resources")