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Copies/copienator/commands/automatic_page_splitter.py
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2026-11-03 22:08:36 +01:00

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"""Publish automatic splits into an evaluation, preserving sources and review data."""
from __future__ import annotations
import hashlib
import json
import shutil
import tempfile
from pathlib import Path
from copienator import CliError, ExitCode
from copienator.auto_page_split import run as analyse_batch
from copienator.copy_errors import clear_copy_error, copy_errors, mark_copy_error
from copienator.filesystem import publish_file_sets
from copienator.orientation import report_path
def decision_path(workspace, stem):
return workspace.metadata_dir / "page_splitting" / f"{stem}.json"
def load_decisions(workspace, source):
"""Only reuse decisions for the exact preserved input and published output."""
try:
data = json.loads(decision_path(workspace, source.stem).read_text())
if data["source_sha256"] != hashlib.sha256(source.read_bytes()).hexdigest():
return None
output = workspace.copies_dir / source.name
digest = (
hashlib.sha256(output.read_bytes()).hexdigest() if output.exists() else None
)
if digest != data["output_sha256"]:
return None
pages = data["pages"]
if not isinstance(pages, list) or not all(
isinstance(row, dict)
and type(row.get("source_page")) is int
and isinstance(row.get("outputs"), list)
and all(
isinstance(o, dict)
and o.get("side") in {"left", "right", "whole"}
and type(o.get("keep")) is bool
and isinstance(o.get("crop_points"), list)
and len(o["crop_points"]) == 4
for o in row["outputs"]
)
for row in pages
):
return None
return pages
except (OSError, ValueError, KeyError, TypeError, AttributeError):
return None
def run(workspace, inputs: list[Path], *, workers=4):
if workers < 1:
raise CliError(
"Le nombre de traitements parallèles doit être positif.",
ExitCode.INVALID_ARGUMENTS,
)
if not inputs:
print("Aucune copie PDF à traiter.", flush=True)
return ExitCode.SUCCESS
if len({p.name for p in inputs}) != len(inputs):
raise CliError(
"Plusieurs copies portent le même nom.", ExitCode.INVALID_ARGUMENTS
)
copy_errors(workspace) # Validate existing review metadata before publishing.
workspace.runs_dir.mkdir(parents=True, exist_ok=True)
run_dir = Path(tempfile.mkdtemp(prefix="page-split-", dir=workspace.runs_dir))
snapshots = run_dir / "inputs"
snapshots.mkdir()
for source in inputs:
shutil.copy2(source, snapshots / source.name)
result = run_dir / "result"
print(f"Découpage automatique de {len(inputs)} copie(s).", flush=True)
summary = analyse_batch(snapshots, result, workers=workers)
records = json.loads((result / "report.json").read_text())["pages"]
stages = {
name: run_dir / name for name in ("copies", "originals", "origins", "decisions")
}
for stage in stages.values():
stage.mkdir()
for source in inputs:
rows = [r for r in records if r["file"] == source.name]
expected = rows[0]["source_sha256"]
if hashlib.sha256(source.read_bytes()).hexdigest() != expected:
raise CliError(
f"{source.name} a changé pendant l’analyse. Aucun PDF remplacé."
)
shutil.copy2(snapshots / source.name, stages["originals"] / source.name)
for directory, label in (
(workspace.copies_dir, "previous_copies"),
(workspace.original_copies_dir, "previous_originals"),
):
prior = directory / source.name
if prior.exists():
backup = run_dir / label
backup.mkdir(exist_ok=True)
shutil.copy2(prior, backup / source.name)
output = result / "pdfs" / source.name
digest = (
hashlib.sha256(output.read_bytes()).hexdigest() if output.exists() else None
)
if digest:
shutil.copy2(output, stages["copies"] / source.name)
origins = [
{"origin": r["source_page"], "crop_points": o["crop_points"]}
for r in rows
for o in r["outputs"]
if o["keep"]
]
if digest:
(stages["origins"] / (source.stem + ".json")).write_text(
json.dumps({"version": 1, "sha256": digest, "pages": origins}),
encoding="utf-8",
)
(stages["decisions"] / (source.stem + ".json")).write_text(
json.dumps(
{
"version": 1,
"source_sha256": expected,
"output_sha256": digest,
"pages": rows,
}
),
encoding="utf-8",
)
names = [p.name for p in inputs]
for source in inputs:
if source.read_bytes() != (snapshots / source.name).read_bytes():
raise CliError(
f"{source.name} a changé pendant l’analyse. Aucun PDF remplacé."
)
publish_file_sets(
{
workspace.copies_dir: (stages["copies"], names),
workspace.original_copies_dir: (stages["originals"], []),
workspace.metadata_dir / "page_origins": (
stages["origins"],
[p.stem + ".json" for p in inputs],
),
workspace.metadata_dir / "page_splitting": (stages["decisions"], []),
}
)
for source in inputs:
if (
source.parent.resolve()
not in {
workspace.copies_dir.resolve(),
workspace.original_copies_dir.resolve(),
}
and source.read_bytes() == (snapshots / source.name).read_bytes()
):
# Root scans become preserved originals, as in the manual workflow.
source.unlink()
rows = [r for r in records if r["file"] == source.name]
output = workspace.copies_dir / source.name
clear_copy_error(workspace, output, source="orientation")
report_path(workspace, source.stem).unlink(missing_ok=True)
reasons = {reason for r in rows for reason in r["review_reasons"]}
if reasons or not output.exists():
mark_copy_error(
workspace,
output,
"Découpage automatique à vérifier manuellement."
if reasons
else "Toutes les pages semblent vides : vérifier l’original.",
source="page_splitter",
)
else:
clear_copy_error(workspace, output, source="page_splitter")
print(
f"Terminé : {summary['output_pages']} pages conservées, {summary['blank_removed']} pages vides retirées. "
"Ordre des pages inchangé.",
flush=True,
)
print(
f"Rapport et sauvegardes : {run_dir}\n"
"Choisissez Manuellement pour vérifier ou modifier les propositions.",
flush=True,
)
return ExitCode.SUCCESS