c878ee5f3b
Adds a first-class lifecycle state to every document, distinct from AnalysisJob.status. The lifecycle describes the document as a whole and is the foundation for the doc-centric pivot in 0.6.0. Domain - DocumentLifecycleState enum (Uploaded/Parsed/Chunked/Ingested/Stale/Failed) - Document.lifecycle_state and lifecycle_state_at fields - Document.transition_to() validates against a transition table (domain/lifecycle.py) and returns a DocumentLifecycleChanged event - InvalidLifecycleTransitionError on disallowed transitions Persistence - ALTER TABLE documents to add the two columns (default 'Uploaded') - New index idx_documents_lifecycle_state for filter perf - _COLUMN_MIGRATIONS refactored to support multiple tables - _POST_MIGRATION_DDL list for indexes on freshly-added columns - SqliteDocumentRepository.update_lifecycle() Services - AnalysisService drives transitions on parse / chunk / re-chunk / fail via _transition_document(); idempotent and resilient (logs WARN and continues if a stale state is somehow encountered) API - DocumentResponse exposes lifecycleState + lifecycleStateAt (additive — existing 'status' field kept for backwards compat) Frontend - Document type extended with lifecycleState and lifecycleStateAt - DocumentLifecycleState union literal mirroring the backend enum Tests - 24 new tests in test_lifecycle.py covering transitions, idempotency, invariant preservation, and event emission - test_repos.py: round-trip + every-enum-value check + update_lifecycle - test_chunking.py: rechunk path now mocks document_repo correctly Refs #202
35 lines
1 KiB
Python
35 lines
1 KiB
Python
"""Domain events — frozen records that document state transitions.
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Events are produced by domain operations (typically returned from a
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mutation method on an aggregate). They are pure data — no event bus is
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wired in 0.6.0; services can choose to log, persist, or publish them
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later. Keeping them here keeps the domain layer free of any event-bus
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infrastructure.
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"""
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from __future__ import annotations
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from dataclasses import dataclass
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from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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from datetime import datetime
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from domain.value_objects import DocumentLifecycleState
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@dataclass(frozen=True)
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class DocumentLifecycleChanged:
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"""A Document lifecycle transition occurred.
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Attributes:
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document_id: id of the document that transitioned.
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previous: state the document was in before the transition.
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current: state the document is in after the transition.
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at: timestamp of the transition (UTC).
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"""
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document_id: str
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previous: DocumentLifecycleState
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current: DocumentLifecycleState
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at: datetime
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