#!/usr/bin/env bash
# tests/lib.sh -- tiny assertion helpers for the ai-sandbox test suite.
#
# Every test file gets: AISB (path to the script), WORK (scratch dir), and uses
# sb() to run the sandbox with fully redirected XDG dirs so nothing touches the
# real machine.

PASS=0
FAIL=0
FAILED_NAMES=()
_current=""

t_name() { _current="$1"; printf '\n\033[1m# %s\033[0m\n' "$1"; }

_ok()   { PASS=$((PASS + 1)); printf '  \033[32mok\033[0m   %s\n' "$1"; }
_bad()  { FAIL=$((FAIL + 1)); FAILED_NAMES+=("$_current :: $1"); printf '  \033[31mFAIL\033[0m %s\n' "$1"; shift || true;
          [[ -n "${1:-}" ]] && printf '       %s\n' "$1"; return 0; }

# sb [args...] -> sets RC, OUT (stdout+stderr)
sb() {
  OUT="$("$AISB" "$@" 2>&1)" && RC=0 || RC=$?
  return 0
}

# sb_env VAR=val ... -- args   (env prefix, without leaking into the test shell)
sb_env() {
  local -a envs=()
  while (($#)) && [[ "$1" != -* && "$1" == *=* ]]; do envs+=("$1"); shift; done
  OUT="$(env "${envs[@]}" "$AISB" "$@" 2>&1)" && RC=0 || RC=$?
  return 0
}

assert_rc() { # assert_rc <expected> <label>
  if [[ "$RC" == "$1" ]]; then _ok "$2"
  else _bad "$2" "expected rc=$1 got rc=$RC; output: $(printf '%s' "$OUT" | head -3 | tr '\n' ' ')"; fi
}

assert_contains() { # assert_contains <needle> <label>
  if printf '%s' "$OUT" | grep -qF -- "$1"; then _ok "$2"
  else _bad "$2" "missing: '$1'  in: $(printf '%s' "$OUT" | head -5 | tr '\n' ' ')"; fi
}

assert_absent() { # assert_absent <needle> <label>
  if printf '%s' "$OUT" | grep -qF -- "$1"; then
    _bad "$2" "unexpectedly present: '$1'"
  else _ok "$2"; fi
}

assert_eq() { # assert_eq <expected> <actual> <label>
  if [[ "$1" == "$2" ]]; then _ok "$3"
  else _bad "$3" "expected '$1' got '$2'"; fi
}

assert_count() { # assert_count <expected> <needle> <label>
  local n
  n="$(printf '%s' "$OUT" | grep -oF -- "$2" | wc -l | tr -d ' ')"
  if [[ "$n" == "$1" ]]; then _ok "$3"
  else _bad "$3" "expected $1 occurrence(s) of '$2', got $n"; fi
}

assert_file_mode() { # assert_file_mode <path> <mode> <label>
  local m; m="$(stat -c '%a' "$1" 2>/dev/null || echo missing)"
  if [[ "$m" == "$2" ]]; then _ok "$3"; else _bad "$3" "expected mode $2 got $m"; fi
}

summary() {
  printf '\n------------------------------------------------------------\n'
  [[ -n "${AISB_TEST_COUNTS:-}" ]] && printf '%s %s\n' "$PASS" "$FAIL" >> "$AISB_TEST_COUNTS"
  if (( FAIL )); then
    printf '\033[31m%d passed, %d FAILED\033[0m\n' "$PASS" "$FAIL"
    local f; for f in "${FAILED_NAMES[@]}"; do printf '  - %s\n' "$f"; done
    return 1
  fi
  printf '\033[32m%d passed, 0 failed\033[0m\n' "$PASS"
}