"""Preserve the Find regression sequence and verify exact red/green input deltas."""
from pathlib import Path
import hashlib
import json
import shutil

base = Path(__file__).resolve().parent
root = base.parents[1]
dest = root / 'harness/experiments/text-find-selection-20260913'
dest.mkdir()
labels = ['focus-red-1', 'focus-red-2', 'focus-green-1', 'focus-green-2']
records = []
def keep(path, relative):
    raw = path.read_bytes()
    target = dest / relative
    target.parent.mkdir(parents=True, exist_ok=True)
    assert not target.exists()
    shutil.copyfile(path, target)
    assert target.read_bytes() == raw
    records.append({'path': relative, 'bytes': len(raw), 'sha256': hashlib.sha256(raw).hexdigest()})
inputs = {}
for label in labels:
    inputs[label] = json.loads((base / label / 'inputs.json').read_text())['files']
    receipt = json.loads((base / label / 'result.json').read_text())
    assert receipt['inputsUnchanged']
    for stream in ['stdout', 'stderr']:
        raw = (base / label / (stream + '.log')).read_bytes()
        assert receipt[stream] == {'bytes': len(raw), 'sha256': hashlib.sha256(raw).hexdigest()}
    for path in sorted((base / label).iterdir()):
        if path.is_file():
            keep(path, label + '/' + path.name)
def differences(a, b):
    assert inputs[a].keys() == inputs[b].keys()
    return [name for name in inputs[a] if inputs[a][name] != inputs[b][name]]
red_fixture = differences('focus-red-1', 'focus-red-2')
fix = differences('focus-red-2', 'focus-green-2')
retry = differences('focus-green-1', 'focus-green-2')
assert red_fixture == ['crates/oa-desktop/src/app/text_workspace/focus_selection_tests.rs']
assert fix == ['crates/oa-desktop/src/app/source_symbols.rs']
assert retry == []
for name in ['focus_regression.py', 'prepare_focus_red.py', 'archive_focus.py']:
    keep(base / name, 'helpers/' + name)
keep(base / 'focus-corrected-source/manifest.json', 'corrected/manifest.json')
keep(base / 'focus-corrected-source/source_symbols.rs', 'corrected/source_symbols.rs')
manifest = {'scope': 'Historical Find-only regression sequence. Red1 fixture failure and green1 cache rejection are not correction acceptance. Red2 vs green2 differs only in production source_symbols.rs.', 'redFixtureDelta': red_fixture, 'redGreenDelta': fix, 'greenRetryByteDelta': retry, 'files': records}
with (dest / 'manifest.json').open('x', encoding='utf-8', newline='\n') as stream:
    json.dump(manifest, stream, indent=2)
    stream.write('\n')
print(json.dumps({'directory': str(dest), 'payloads': len(records), 'bytes': sum(r['bytes'] for r in records), 'manifestSha256': hashlib.sha256((dest / 'manifest.json').read_bytes()).hexdigest()}))