#!/usr/bin/env bash
#
# lib.sh — shared helpers for E2E test suite.
#
# Test functions set a global $FAILURES counter and $FAILED list so the
# caller can exit non-zero after all suites have run.
#
# Sourced by run.sh — do NOT execute directly.
#

FAILURES=0
PASSES=0
FAILED_TESTS=""

assert_eq() {
  local desc="$1" expected="$2" actual="$3"
  if [[ "$expected" == "$actual" ]]; then
    printf '  \033[1;32mPASS\033[0m %s\n' "$desc"
    ((++PASSES))
  else
    printf '  \033[1;31mFAIL\033[0m %s\n' "$desc"
    printf '         expected: %q\n' "$expected"
    printf '         actual:   %q\n' "$actual"
    ((++FAILURES))
    FAILED_TESTS+="$desc; "
  fi
}

assert_contains() {
  local desc="$1" haystack="$2" needle="$3"
  if [[ "$haystack" == *"$needle"* ]]; then
    printf '  \033[1;32mPASS\033[0m %s\n' "$desc"
    ((++PASSES))
  else
    printf '  \033[1;31mFAIL\033[0m %s\n' "$desc"
    printf '         haystack did not contain: %q\n' "$needle"
    ((++FAILURES))
    FAILED_TESTS+="$desc; "
  fi
}

assert_not_contains() {
  local desc="$1" haystack="$2" needle="$3"
  if [[ "$haystack" != *"$needle"* ]]; then
    printf '  \033[1;32mPASS\033[0m %s\n' "$desc"
    ((++PASSES))
  else
    printf '  \033[1;31mFAIL\033[0m %s\n' "$desc"
    printf '         haystack unexpectedly contained: %q\n' "$needle"
    ((++FAILURES))
    FAILED_TESTS+="$desc; "
  fi
}

assert_match() {
  local desc="$1" haystack="$2" regex="$3"
  if [[ "$haystack" =~ $regex ]]; then
    printf '  \033[1;32mPASS\033[0m %s\n' "$desc"
    ((++PASSES))
  else
    printf '  \033[1;31mFAIL\033[0m %s\n' "$desc"
    printf '         did not match regex: %s\n' "$regex"
    ((++FAILURES))
    FAILED_TESTS+="$desc; "
  fi
}

assert_file_exists() {
  local desc="$1" path="$2"
  if [[ -e "$path" ]]; then
    printf '  \033[1;32mPASS\033[0m %s\n' "$desc"
    ((++PASSES))
  else
    printf '  \033[1;31mFAIL\033[0m %s\n' "$desc"
    printf '         file not found: %s\n' "$path"
    ((++FAILURES))
    FAILED_TESTS+="$desc; "
  fi
}

assert_gt() {
  local desc="$1" a="$2" b="$3"
  if (( a > b )); then
    printf '  \033[1;32mPASS\033[0m %s (%s > %s)\n' "$desc" "$a" "$b"
    ((++PASSES))
  else
    printf '  \033[1;31mFAIL\033[0m %s (%s <= %s)\n' "$desc" "$a" "$b"
    ((++FAILURES))
    FAILED_TESTS+="$desc; "
  fi
}

summary() {
  echo
  printf -- '---\n'
  printf 'passes:    %d\n' "$PASSES"
  printf 'failures:  %d\n' "$FAILURES"
  if [[ -n "$FAILED_TESTS" ]]; then
    printf 'failed:    %s\n' "$FAILED_TESTS"
  fi
  if (( FAILURES > 0 )); then
    return 1
  fi
}