SurfSense/surfsense_backend/app/automations/schemas/definition/trigger_spec.py
CREDO23 be4d43d6c9 feat(automation): add Pydantic schemas for the automation definition
Three layers of Pydantic models under app/automations/schemas/, one
file per concern (SRP), matching the envelope in
automation-design-plan.md §5.

definition/ — the editable envelope persisted in
automations.definition:
  - envelope.py       AutomationDefinition (top-level shape)
  - plan_step.py      PlanStep (one step in the sequential plan)
  - inputs.py         InputsBlock (the inputs JSON Schema wrapper)
  - execution.py      ExecutionBlock (timeouts, retries, concurrency,
                                      budget cap, on_failure plan)
  - metadata.py       MetadataBlock (tags + created_from_nl + extras)
  - trigger_spec.py   TriggerSpec (one entry in triggers[])

triggers/ — per-trigger config schemas, dispatched by registry on the
TriggerSpec.type discriminator:
  - schedule.py       ScheduleTriggerConfig(cron, timezone)
  - manual.py         ManualTriggerConfig() — empty in v1

actions/ — per-action config schemas, dispatched by registry on the
PlanStep.action discriminator:
  - agent_task.py     AgentTaskActionConfig(prompt, tools, model,
                                            output_schema)

Design properties verified by an inline smoke test:
  - The §5 worked example round-trips through model_validate_json /
    model_dump_json byte-for-byte (InputsBlock uses
    serialize_by_alias so the JSON key stays "schema" not
    "schema_").
  - Envelope rejects unknown top-level keys (extra="forbid").
  - MetadataBlock tolerates unknown keys (extra="allow").
  - ExecutionBlock defaults apply when the block is omitted.
  - retry_backoff and concurrency are typed as Literal — bogus
    values rejected at validation time.
  - Per-type configs enforce their required fields (cron + timezone
    on schedule; non-empty prompt on agent_task).

The envelope keeps trigger and action configs as untyped dicts on
purpose — per-type validation is a registry-driven dispatch (commit
10), keeping the envelope free of every-type-knows-every-type
coupling.
2026-05-26 22:50:52 +02:00

40 lines
1.2 KiB
Python

"""``TriggerSpec`` — one entry in the envelope's ``triggers`` array."""
from __future__ import annotations
from typing import Any
from pydantic import BaseModel, ConfigDict, Field
class TriggerSpec(BaseModel):
"""One trigger attached to an automation, as it appears in the definition.
The envelope keeps ``config`` as an untyped JSON object on purpose
— the per-type config schemas live in
``app.automations.schemas.triggers`` and are dispatched at
validation time by looking up ``type`` in the trigger registry.
This mirrors the design's "definitions are pure data" principle:
the envelope describes shape, the registry resolves names to
behaviour.
"""
model_config = ConfigDict(extra="forbid")
type: str = Field(
...,
description=(
"Trigger-type discriminator (e.g., ``schedule``, ``manual``). "
"Resolved against the trigger registry."
),
min_length=1,
)
config: dict[str, Any] = Field(
default_factory=dict,
description=(
"Trigger-type-specific config. Validated against the "
"registered ``TriggerDefinition.config_schema`` for "
"``type`` at definition-save time."
),
)