#!/usr/bin/env python3
"""Red-proof the R-893 option A tests: apply one mutation, run its test, expect FAIL, restore the file."""
import subprocess, sys

ROOT = "/mnt/5_hdd/felhom.eu/git/felhom-controller/controller"
U = ROOT + "/internal/backup/offbox_restore_undo.go"
R = ROOT + "/internal/backup/offbox_reconstitute.go"

CASES = [
    ("put-back skipped", U, "	if volumesMoved {\n		if err := m.putBack(stack, c); err != nil {",
     "	if false {\n		if err := m.putBack(stack, c); err != nil {", "TestR893A_AFailedReplayPutsTheLiveVolumesBackExactly"),
    ("volume-replay branch without undo", R, "if definitionMoved || nVols > 0 || undo != nil {", "if definitionMoved || nVols > 0 {",
     "TestR893A_AFailedVolumeReplayStillPutsBackWhenItCountedNothing"),
    ("fit check without the copy", R, "if free < need+volNeed {", "if free < need {", "TestR893A_TheCopyMustFitBeforeAnythingStops"),
    ("probe error ignored", U, "		if pErr != nil {\n			return 0, nil, pErr\n		}", "		if pErr != nil {\n			continue\n		}",
     "TestR893A_AnUnmeasurableVolumeRefusesBeforeAnythingStops"),
    ("no drop on exit", R, "		defer undo.drop(m, stack)\n", "", "TestR893A_ASuccessfulRestoreRemovesTheCopy"),
    ("copy not kept on a failed put-back", U, "			c.keep = true\n", "", "TestR893A_AFailedPutBackHoldsTheAppAndKeepsTheCopy"),
    ("copy error ignored", R, "		if cErr != nil {\n			m.logger.Printf(\"[ERROR] [offbox] %s: the copy of the live volumes failed",
     "		if cErr != nil && false {\n			m.logger.Printf(\"[ERROR] [offbox] %s: the copy of the live volumes failed",
     "TestR893A_AFailedCopyRestoresNothingAndStartsTheApp"),
    ("slice-1 hold after the rollback", R,
     "				return res, m.putBackAfterFailedRestore(stack, iErr, liveDef, undo, res.VolumesReplayed > 0, res.FilesPlaced, restartStack, \"err.backup.db_restore_failed_held_mixed\")",
     "				m.holdAppAfterMixedRestore(stack, iErr, liveDef)\n				return res, util.MsgError(\"err.backup.db_restore_failed_held_mixed\", stack)",
     "TestR893_AVersionChangeThenAFailedReplayStartsTheAppAtItsLiveDefinition"),
    ("DB-start branch only restarts", R,
     "				return res, m.putBackAfterFailedRestore(stack, err, liveDef, undo, res.VolumesReplayed > 0, res.FilesPlaced, restartStack, \"err.backup.restore_failed_held_mixed\")",
     "				_ = restartStack()\n				return res, err",
     "TestR893_AVersionChangeThenAFailedDBStartStartsTheAppAtItsLiveDefinition"),
]

bad = 0
for name, path, old, new, test in CASES:
    src = open(path).read()
    if src.count(old) != 1:
        print("SETUP-ERROR", name, "match count", src.count(old)); bad += 1; continue
    open(path, "w").write(src.replace(old, new))
    try:
        p = subprocess.run(["go", "test", "./internal/backup/", "-run", "^" + test + "$", "-count=1"], cwd=ROOT,
                           capture_output=True, text=True)
        out = p.stdout + p.stderr
        line = next((l.strip() for l in out.splitlines() if "_test.go:" in l), out.strip().splitlines()[-1] if out.strip() else "")
        verdict = "RED (good)" if p.returncode != 0 else "STILL GREEN (BAD)"
        if p.returncode == 0:
            bad += 1
        print("%-38s %-18s %s" % (name, verdict, line[:220]))
    finally:
        open(path, "w").write(src)
print("restored; failures-to-go-red:", bad)
sys.exit(1 if bad else 0)