#!/usr/bin/env bash
#
# std.ch regression runner. Build each PRG against the current Five
# compiler (caller's PWD must be the repo root) and execute it; non-zero
# exit or "FAIL"/"NOT REJECTED" in stdout marks the run as failed.
#
# This deliberately runs in a temp scratch directory so the DBF/NTX
# artifacts don't collide with each other across tests.
set -e

ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
FIVE="$ROOT/five"
if [ ! -x "$FIVE" ]; then
   echo "five binary not found at $FIVE — run 'go build -o five ./cmd/five' first" >&2
   exit 2
fi

TESTS=(
   test_pp_stdch
   test_count
   test_sum_avg
   test_sum_multi
   test_copy
   test_sort
   test_list
   test_list_to_file
   test_total
   test_join
   test_update
   test_set_deleted
   test_unsupported
   test_block_comma
   test_compound_lhs
)

work="$(mktemp -d)"
trap 'rm -rf "$work"' EXIT

pass=0
fail=0
for name in "${TESTS[@]}"; do
   src="$ROOT/tests/std_ch/${name}.prg"
   bin="$work/${name}"
   if ! "$FIVE" build "$src" -o "$bin" >/dev/null 2>"$work/${name}.err"; then
      echo "FAIL build  $name"
      cat "$work/${name}.err" | sed 's/^/   /'
      fail=$((fail+1))
      continue
   fi
   pushd "$work" >/dev/null
   if ! out="$("$bin" 2>&1)"; then
      echo "FAIL run    $name"
      echo "$out" | sed 's/^/   /'
      fail=$((fail+1))
      popd >/dev/null
      continue
   fi
   popd >/dev/null
   if echo "$out" | grep -qE 'FAIL|NOT REJECTED|expect.*got'; then
      echo "FAIL assert $name"
      echo "$out" | sed 's/^/   /'
      fail=$((fail+1))
      continue
   fi
   echo "PASS         $name"
   pass=$((pass+1))
done

echo
echo "================================================================"
echo "  Results: $pass / $((pass+fail)) passed"
echo "================================================================"
[ $fail -eq 0 ]