#!/usr/bin/env bash
set -euo pipefail

REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
PASS=0
FAIL=0

pass() { echo "  PASS: $1"; PASS=$((PASS + 1)); }
fail() { echo "  FAIL: $1"; FAIL=$((FAIL + 1)); }

HOOK="$REPO_ROOT/scripts/git-hooks/post-push"
FAKE_BIN="$(mktemp -d)"
FAKE_HOME="$(mktemp -d)"
trap 'rm -rf "$FAKE_BIN" "$FAKE_HOME"' EXIT

# Helper: write a fake git stub that exits with the given code
make_git() {
  local exit_code="$1"
  printf '#!/usr/bin/env bash\nexit %s\n' "$exit_code" > "$FAKE_BIN/git"
  chmod +x "$FAKE_BIN/git"
}

# Helper: write a fake claude stub; optionally touches a sentinel file on invocation
make_claude() {
  local exit_code="$1"
  local log="${2:-}"
  if [[ -n "$log" ]]; then
    printf '#!/usr/bin/env bash\ntouch "%s"\nexit %s\n' "$log" "$exit_code" > "$FAKE_BIN/claude"
  else
    printf '#!/usr/bin/env bash\nexit %s\n' "$exit_code" > "$FAKE_BIN/claude"
  fi
  chmod +x "$FAKE_BIN/claude"
}

# Run the hook with mocked PATH and HOME; suppress all output
run_hook() {
  PATH="$FAKE_BIN:$PATH" HOME="$FAKE_HOME" bash "$HOOK" > /dev/null 2>&1
}

# Run the hook and capture combined stdout+stderr
capture_hook() {
  PATH="$FAKE_BIN:$PATH" HOME="$FAKE_HOME" bash "$HOOK" 2>&1 || true
}

# ---------------------------------------------------------------------------
echo "--- post-push: always exits 0 ---"
# ---------------------------------------------------------------------------

make_git 1; make_claude 0
if run_hook; then
  pass "exits 0 when git pull fails"
else
  fail "should exit 0 when git pull fails"
fi

make_git 0; make_claude 1
if run_hook; then
  pass "exits 0 when claude plugin update fails"
else
  fail "should exit 0 when claude plugin update fails"
fi

# ---------------------------------------------------------------------------
echo ""
echo "--- post-push: success output ---"
# ---------------------------------------------------------------------------

make_git 0; make_claude 0
output=$(capture_hook)
echo "$output" | grep -q "kyberforge cache updated" \
  && pass "prints success message when both git pull and claude succeed" \
  || fail "should print success message when both commands succeed"

# ---------------------------------------------------------------------------
echo ""
echo "--- post-push: warnings on failure ---"
# ---------------------------------------------------------------------------

make_git 1; make_claude 0
output=$(capture_hook)
echo "$output" | grep -qi "failed to pull" \
  && pass "warns when git pull fails" \
  || fail "should warn when git pull fails"

make_git 0; make_claude 1
output=$(capture_hook)
echo "$output" | grep -qi "failed" \
  && pass "warns when claude plugin update fails" \
  || fail "should warn when claude plugin update fails"

# ---------------------------------------------------------------------------
echo ""
echo "--- post-push: claude not called when git pull fails ---"
# ---------------------------------------------------------------------------

CLAUDE_LOG="$FAKE_HOME/claude-was-called"
make_git 1; make_claude 0 "$CLAUDE_LOG"
run_hook
if [[ ! -f "$CLAUDE_LOG" ]]; then
  pass "claude not called when git pull fails"
else
  fail "claude should not be called when git pull fails"
fi

# ---------------------------------------------------------------------------
echo ""
echo "Results: $PASS passed, $FAIL failed"
[[ $FAIL -eq 0 ]]