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minerops/backend/alembic/versions/0010_begin_repair.py
T

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9.8 KiB
Python

"""add begin repair workflow
Revision ID: 0010_begin_repair
Revises: 0009_inventory_asset_id_history
Create Date: 2026-07-29
"""
from typing import Sequence, Union
import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects import postgresql
revision: str = "0010_begin_repair"
down_revision: Union[str, None] = "0009_inventory_asset_id_history"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None
REPAIR_STATUSES = (
"OPEN",
"IN_PROGRESS",
"WAITING_FOR_PARTS",
"READY_FOR_TEST",
"COMPLETED",
"CANCELLED",
)
ACTIVE_REPAIR_STATUSES = (
"OPEN",
"IN_PROGRESS",
"WAITING_FOR_PARTS",
"READY_FOR_TEST",
)
REPAIR_REASONS = (
"HARDWARE_FAILURE",
"LOW_HASHRATE",
"CONTROL_BOARD",
"HASHBOARD",
"PSU",
"FAN",
"OVERHEATING",
"NETWORKING",
"PREVENTIVE_MAINTENANCE",
"INSPECTION",
"OTHER",
)
REPAIR_EVENT_TYPES = ("REPAIR_STARTED", "INITIAL_NOTE")
def _quoted(values: Sequence[str]) -> str:
return ", ".join(f"'{value}'" for value in values)
def upgrade() -> None:
connection = op.get_bind()
op.drop_constraint("ck_miners_lifecycle_status", "miners", type_="check")
op.create_check_constraint(
"ck_miners_lifecycle_status",
"miners",
"lifecycle_status IN ('active', 'spare', 'retired', 'in_repair')",
)
connection.exec_driver_sql(
"""
INSERT INTO permissions (key, description)
VALUES ('repairs.create', 'Begin repairs for miner assets')
ON CONFLICT (key) DO UPDATE
SET description = EXCLUDED.description
"""
)
connection.exec_driver_sql(
"""
INSERT INTO role_permissions (role_id, permission_id)
SELECT roles.id, permissions.id
FROM roles
JOIN permissions ON permissions.key = 'repairs.create'
WHERE roles.name IN ('Admin', 'Manager', 'Technician')
ON CONFLICT DO NOTHING
"""
)
op.create_table(
"repairs",
sa.Column(
"id",
postgresql.UUID(as_uuid=True),
primary_key=True,
server_default=sa.text("gen_random_uuid()"),
),
sa.Column(
"miner_id",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("miners.id", ondelete="RESTRICT"),
nullable=False,
),
sa.Column(
"status",
sa.Text(),
nullable=False,
server_default=sa.text("'OPEN'"),
),
sa.Column("reason", sa.Text(), nullable=False),
sa.Column(
"opened_at",
sa.DateTime(timezone=True),
nullable=False,
server_default=sa.text("now()"),
),
sa.Column(
"opened_by",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("users.id", ondelete="RESTRICT"),
nullable=False,
),
sa.Column(
"completed_at",
sa.DateTime(timezone=True),
nullable=True,
),
sa.Column(
"completed_by",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("users.id", ondelete="RESTRICT"),
nullable=True,
),
sa.CheckConstraint(
f"status IN ({_quoted(REPAIR_STATUSES)})",
name="ck_repairs_status",
),
sa.CheckConstraint(
f"reason IN ({_quoted(REPAIR_REASONS)})",
name="ck_repairs_reason",
),
sa.CheckConstraint(
"(completed_at IS NULL AND completed_by IS NULL) OR "
"(completed_at IS NOT NULL AND completed_by IS NOT NULL)",
name="ck_repairs_completion_pair",
),
sa.CheckConstraint(
"(status = 'COMPLETED') = (completed_at IS NOT NULL)",
name="ck_repairs_completed_state",
),
)
op.create_index(
"idx_repairs_miner_opened_at",
"repairs",
["miner_id", "opened_at", "id"],
)
op.create_index("idx_repairs_opened_by", "repairs", ["opened_by"])
op.create_index("idx_repairs_completed_by", "repairs", ["completed_by"])
op.create_index(
"uq_repairs_one_active_per_miner",
"repairs",
["miner_id"],
unique=True,
postgresql_where=sa.text(
f"status IN ({_quoted(ACTIVE_REPAIR_STATUSES)})"
),
)
op.create_table(
"repair_events",
sa.Column(
"id",
postgresql.UUID(as_uuid=True),
primary_key=True,
server_default=sa.text("gen_random_uuid()"),
),
sa.Column(
"repair_id",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("repairs.id", ondelete="RESTRICT"),
nullable=False,
),
sa.Column("sequence", sa.Integer(), nullable=False),
sa.Column("event_type", sa.Text(), nullable=False),
sa.Column(
"created_at",
sa.DateTime(timezone=True),
nullable=False,
server_default=sa.text("now()"),
),
sa.Column(
"created_by",
postgresql.UUID(as_uuid=True),
sa.ForeignKey("users.id", ondelete="RESTRICT"),
nullable=False,
),
sa.Column(
"payload",
postgresql.JSONB(),
nullable=False,
),
sa.CheckConstraint(
f"event_type IN ({_quoted(REPAIR_EVENT_TYPES)})",
name="ck_repair_events_type",
),
sa.CheckConstraint(
"sequence > 0",
name="ck_repair_events_sequence_positive",
),
sa.CheckConstraint(
"jsonb_typeof(payload) = 'object'",
name="ck_repair_events_payload_object",
),
sa.CheckConstraint(
"("
"event_type = 'REPAIR_STARTED' "
"AND payload ?& ARRAY['reason', 'from_lifecycle', 'to_lifecycle'] "
f"AND payload ->> 'reason' IN ({_quoted(REPAIR_REASONS)}) "
"AND payload ->> 'from_lifecycle' IN ('active', 'spare') "
"AND payload ->> 'to_lifecycle' = 'in_repair'"
") OR ("
"event_type = 'INITIAL_NOTE' "
"AND jsonb_typeof(payload -> 'note') = 'string' "
"AND trim(payload ->> 'note') <> ''"
")",
name="ck_repair_events_payload_shape",
),
sa.UniqueConstraint(
"repair_id",
"sequence",
name="uq_repair_events_repair_sequence",
),
)
op.create_index(
"idx_repair_events_repair_created",
"repair_events",
["repair_id", "created_at", "sequence", "id"],
)
op.create_index(
"idx_repair_events_created_by",
"repair_events",
["created_by"],
)
def downgrade() -> None:
connection = op.get_bind()
connection.exec_driver_sql(
f"""
DO $$
DECLARE
invalid_miner_ids TEXT;
BEGIN
SELECT string_agg(miner.id::text, ', ' ORDER BY miner.id::text)
INTO invalid_miner_ids
FROM miners AS miner
LEFT JOIN LATERAL (
SELECT count(*) AS started_event_count
FROM repairs AS repair
JOIN repair_events AS event
ON event.repair_id = repair.id
AND event.event_type = 'REPAIR_STARTED'
WHERE repair.miner_id = miner.id
AND repair.status IN ({_quoted(ACTIVE_REPAIR_STATUSES)})
) AS history ON TRUE
WHERE miner.lifecycle_status = 'in_repair'
AND history.started_event_count <> 1;
IF invalid_miner_ids IS NOT NULL THEN
RAISE EXCEPTION USING
MESSAGE = format(
'Cannot downgrade Begin Repair: miners %s do not have exactly one active REPAIR_STARTED event',
invalid_miner_ids
),
HINT = 'Repair the affected lifecycle history before downgrading; MinerOps will not invent a prior lifecycle value.';
END IF;
END
$$;
"""
)
connection.exec_driver_sql(
f"""
UPDATE miners AS miner
SET lifecycle_status = history.from_lifecycle,
updated_at = now()
FROM (
SELECT
repair.miner_id,
event.payload ->> 'from_lifecycle' AS from_lifecycle
FROM repairs AS repair
JOIN repair_events AS event
ON event.repair_id = repair.id
AND event.event_type = 'REPAIR_STARTED'
WHERE repair.status IN ({_quoted(ACTIVE_REPAIR_STATUSES)})
) AS history
WHERE miner.id = history.miner_id
AND miner.lifecycle_status = 'in_repair'
"""
)
op.drop_index("idx_repair_events_created_by", table_name="repair_events")
op.drop_index("idx_repair_events_repair_created", table_name="repair_events")
op.drop_table("repair_events")
op.drop_index("uq_repairs_one_active_per_miner", table_name="repairs")
op.drop_index("idx_repairs_completed_by", table_name="repairs")
op.drop_index("idx_repairs_opened_by", table_name="repairs")
op.drop_index("idx_repairs_miner_opened_at", table_name="repairs")
op.drop_table("repairs")
connection.exec_driver_sql(
"""
DELETE FROM role_permissions
WHERE permission_id = (
SELECT id FROM permissions WHERE key = 'repairs.create'
)
"""
)
connection.exec_driver_sql(
"DELETE FROM permissions WHERE key = 'repairs.create'"
)
op.drop_constraint("ck_miners_lifecycle_status", "miners", type_="check")
op.create_check_constraint(
"ck_miners_lifecycle_status",
"miners",
"lifecycle_status IN ('active', 'spare', 'retired')",
)