Files
photoanalyzer/photo_pipeline/api/routes/renames.py

107 lines
3.3 KiB
Python

"""Rename plan API (US04-01): build, inspect, and export plans.
Planning is read-only — it previews and validates but never touches the filesystem.
Applying a plan is a later story, so there is deliberately no apply endpoint here.
"""
from __future__ import annotations
from fastapi import APIRouter, Request
from fastapi.responses import JSONResponse
from photo_pipeline.schemas import ApplyPlanRequest
from photo_pipeline.services.rename_apply import (
ApplyConflict,
ApplyError,
RenameApplyService,
)
from photo_pipeline.services.renames import RenameError, RenameService
router = APIRouter(tags=["renames"])
def _service(request: Request) -> RenameService:
return RenameService(
request.app.state.session_factory,
library_roots=tuple(request.app.state.config.library_roots),
)
def _apply_service(request: Request) -> RenameApplyService:
return RenameApplyService(
request.app.state.session_factory,
library_roots=tuple(request.app.state.config.library_roots),
)
def _error(status: int, code: str, message: str) -> JSONResponse:
return JSONResponse(status_code=status, content={"error": {"code": code, "message": message}})
@router.post("/rename-plans")
def build_plan(request: Request):
try:
return _service(request).build_plan()
except RenameError as error:
return _error(422, "nothing_to_plan", str(error))
@router.get("/rename-plans")
def list_plans(request: Request) -> dict:
return _service(request).list_plans()
@router.get("/rename-plans/{plan_id}")
def get_plan(plan_id: str, request: Request):
plan = _service(request).get(plan_id)
if plan is None:
return _error(404, "not_found", f"unknown rename plan {plan_id}")
return plan
@router.get("/rename-plans/{plan_id}/export")
def export_plan(plan_id: str, request: Request):
try:
return _service(request).export(plan_id)
except RenameError as error:
return _error(404, "not_found", str(error))
@router.post("/rename-plans/{plan_id}/apply")
def apply_plan(plan_id: str, body: ApplyPlanRequest, request: Request):
"""Apply a confirmed plan. The confirmation must carry the current plan version
(and may carry the checksum) so stale browser state cannot run a changed plan."""
try:
return _apply_service(request).apply(
plan_id,
expected_version=body.expected_version,
expected_checksum=body.expected_checksum,
)
except ApplyConflict as error:
return _error(409, "version_conflict", str(error))
except ApplyError as error:
return _error(422, "cannot_apply", str(error))
@router.get("/rename-recovery")
def recovery_status(request: Request) -> dict:
"""Every unresolved rename with its evidence-derived classification."""
journal = _apply_service(request).journal
return {
"blocks_mutation": journal.blocks_mutation(),
"items": journal.classify_all(),
}
@router.post("/rename-recovery/resolve")
def resolve_recovery(request: Request) -> dict:
return _apply_service(request).recover()
@router.post("/rename-plans/{plan_id}/rollback")
def rollback_plan(plan_id: str, request: Request):
try:
return _apply_service(request).rollback_plan(plan_id)
except ApplyError as error:
return _error(422, "cannot_rollback", str(error))