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

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

SSLTYPE="${SSLTYPE:-unix.nopwd}"   # recommended
TARGET="${TARGET:-lnp}"            # lnp is what you used successfully
JOBS="${JOBS:-$(getconf _NPROCESSORS_ONLN 2>/dev/null || echo 1)}"

usage() {
  cat <<USAGE
Usage: $0

Environment:
  SSLTYPE   (default: unix.nopwd)
  TARGET    (default: lnp)
  JOBS      (default: detected CPU count)

Example:
  SSLTYPE=unix.nopwd JOBS=8 $0
USAGE
}

if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
  usage
  exit 0
fi

cd "$ROOT"

# Make sure patches are applied before building (but don't force it here).
if [[ -d patches ]]; then
  echo "Hint: run ./scripts/apply-patches.sh before building if needed."
fi

CLEAN="${CLEAN:-0}"

if [[ "$CLEAN" == "1" ]]; then
  echo "==> Cleaning previous build artifacts"
  make clean || true
  rm -f OSTYPE CFLAGS CCTYPE LDFLAGS OSCFLAGS ARCHIVE SPECIALS
  rm -rf c-client mtest ipopd imapd mailutil mlock dmail tmail rebuild tools/an
fi

echo "==> Building UW-IMAP: make ${TARGET} SSLTYPE=${SSLTYPE}"
# UW-IMAP makefiles are not always parallel-safe in all subdirs; use -j carefully.
# We'll still allow -j, but you can set JOBS=1 if you see race issues.
make -j"${JOBS}" "${TARGET}" "SSLTYPE=${SSLTYPE}"

echo "Build done."