#!/usr/bin/env bash
# test_marker_floor_lanes.sh — regression fixtures for pre-commit validate_marker_floor lanes.
#
# Ships with the 2026-07-10 sonnet-floor lane (Sonnet-Floor Doctrine): each closed hole gets a
# mechanical regression test (Field-Harness Load-Bearing Change Gate convergence condition).
# Fixtures assert BOTH directions: the new lane admits exactly its intended shape, and every
# pre-existing guard still blocks (no degrade-toward-permissive regression).
#
# Usage: bash scripts/test_marker_floor_lanes.sh   Exit: 0 = all fixtures behave; 1 = regression.

set -uo pipefail
# Script-relative, NOT `git rev-parse --show-toplevel`. Measured 2026-08-13 in a vendored tree
# (npm install, then `git init` at a level above — a monorepo committing node_modules is the
# same shape): rev-parse answers with the OUTER repo's root, so this suite looked for the
# package's own files inside somebody else's checkout, found nothing, and reported
# HARNESS-ERROR. The consumer sees a red `npm test` caused entirely by where their .git is.
# The subject of these lanes ships INSIDE this package, so the package root is the only root
# that can be right. Same form as test_capability_entrypoint_shipping.sh:29.
# The exposure is new: before these suites were wired into selfcheck.sh they ran nowhere, so
# the wrong root never cost anything. Wiring a dead lane surfaces every assumption it made.
REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
HOOK="$REPO_ROOT/templates/.git-hooks/pre-commit"
T=$(mktemp -d); trap 'rm -rf "$T"' EXIT

sed -n '/^marker_recreate_hint()/,/^}/p;/^validate_marker_floor()/,/^}/p' "$HOOK" > "$T/fn.sh"

# EXTRACTION CALIBRATION — the sibling suite (test_marker_crossfamily_lanes.sh) has had this and
# this file did not. Without it, ANY failure to extract renders as a REGRESSION rather than as a
# broken instrument: an empty fn.sh means `run()` sources nothing, validate_marker_floor is
# undefined, `bash -c` exits non-zero, every fixture reads as BLOCK, and the three lanes that
# expect PASS "fail" — a red suite pointing at a gate that is perfectly fine. Measured 2026-08-13
# in a vendored git tree, where the old `git rev-parse` root sent $HOOK into another repo entirely.
# The root is fixed above; this guard is what makes the NEXT extraction failure legible instead of
# a false accusation, whatever causes it (a renamed function, a reformatted hook, a truncated file).
# exit 10, matching the harness-error contract selfcheck.sh's pair-loop routes to HARNESS ERROR.
if ! grep -q '^validate_marker_floor()' "$T/fn.sh"; then
  echo "🟥 HARNESS-ERROR: validate_marker_floor() did not extract from $HOOK"
  echo "   (this suite measured NOTHING — it is not a regression verdict)"
  exit 10
fi

run() { bash -c "source '$T/fn.sh'; validate_marker_floor '$1'" >/dev/null 2>&1; }

FAIL=0
check() { # $1=fixture $2=expected(PASS|BLOCK) $3=label
  if run "$1"; then got=PASS; else got=BLOCK; fi
  if [ "$got" = "$2" ]; then echo "✅ $3 → $got"; else echo "❌ $3 → $got (expected $2)"; FAIL=1; fi
}

CF=''
printf "axis2-engine: inline\naxis2-model: sonnet\nfloor-status: sonnet-floor\naxis2-anchor: regression test 5/5 pass\n${CF}axis2-evidence: PASS no-S, 2B applied\n" > "$T/m1"
printf "axis2-engine: inline\naxis2-model: sonnet\nfloor-status: sonnet-floor\n${CF}axis2-evidence: PASS no-S\n" > "$T/m2"
printf "axis2-engine: inline\naxis2-model: haiku\nfloor-status: sonnet-floor\naxis2-anchor: probe 3/3\n${CF}axis2-evidence: PASS no-S\n" > "$T/m3"
printf "axis2-engine: inline\naxis2-model: sonnet\nfloor-status: at-floor\n${CF}axis2-evidence: PASS no-S\n" > "$T/m4"
printf "axis2-engine: inline\naxis2-model: haiku\nfloor-status: below-floor\n${CF}axis2-evidence: PASS no-S\n" > "$T/m5"
printf "axis2-engine: quench-challenger\naxis2-model: opus\nfloor-status: at-floor\n${CF}axis2-evidence: 1S/4A fixed\n" > "$T/m6"
printf "axis2-engine: inline\naxis2-model: haiku\nfloor-status: below-floor\nbelow-floor-ack: \"approved, proceed\" — canary-only change\n${CF}axis2-evidence: PASS no-S\n" > "$T/m7"
printf "axis2-engine: inline\naxis2-model: opus\nfloor-status: bogus-status\n${CF}axis2-evidence: PASS\n" > "$T/m8"

check "$T/m1" PASS  "sonnet-floor + anchor + sonnet model (new lane, intended shape)"
check "$T/m2" BLOCK "sonnet-floor WITHOUT anchor (anchor is the compensating requirement)"
check "$T/m3" BLOCK "haiku claiming sonnet-floor (lane mislabel)"
check "$T/m4" BLOCK "sonnet claiming at-floor (2026-06-10 mislabel class — guard intact)"
check "$T/m5" BLOCK "below-floor without ack (guard intact)"
check "$T/m6" PASS  "opus at-floor (legacy lane intact)"
check "$T/m7" PASS  "below-floor with quoted ack (legacy lane intact)"
check "$T/m8" BLOCK "invalid floor-status (fail-closed on unknown value)"

[ "$FAIL" -eq 0 ] && echo "── all marker-floor lane fixtures behave ──"
exit "$FAIL"