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

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
PREFIX="${PREFIX:-/usr/local/imap}"

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

Environment:
  PREFIX    (default: /usr/local/imap)

Installs:
  - headers to: \$PREFIX/include
  - static lib to: \$PREFIX/lib/libc-client.a

Note:
  Requires a successful build (c-client/c-client.a exists).
USAGE
}

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

cd "$ROOT"

SRC_LIB="${ROOT}/c-client/c-client.a"
SRC_HDR_DIR="${ROOT}/c-client"

if [[ ! -f "$SRC_LIB" ]]; then
  echo "ERROR: $SRC_LIB not found. Build first (./scripts/build.sh)." >&2
  exit 1
fi

echo "==> Installing to PREFIX=$PREFIX"
install -d -m 0755 "$PREFIX/include" "$PREFIX/lib"

echo "==> Installing headers"
# Only install the public headers (all .h in c-client/)
install -m 0644 "$SRC_HDR_DIR"/*.h "$PREFIX/include/"

echo "==> Installing libc-client.a"
install -m 0644 "$SRC_LIB" "$PREFIX/lib/libc-client.a"

echo "==> Done."
echo "Installed:"
echo "  Headers:  $PREFIX/include/*.h"
echo "  Library:  $PREFIX/lib/libc-client.a"