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

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

ts() { date +"%H:%M:%S"; }

run_with_heartbeat() {
  local desc="$1"
  shift

  local start now elapsed hb_pid
  start="$(date +%s)"

  echo "==> [$(ts)] ${desc}"

  # Heartbeat: print elapsed time periodically in case the underlying command is quiet
  (
    while true; do
      sleep 20
      now="$(date +%s)"
      elapsed="$((now - start))"
      echo "    [$(ts)] ... still working (${elapsed}s elapsed) ..."
    done
  ) &
  hb_pid="$!"

  set +e
  "$@"
  local rc=$?
  set -e

  kill "$hb_pid" >/dev/null 2>&1 || true
  wait "$hb_pid" >/dev/null 2>&1 || true

  now="$(date +%s)"
  elapsed="$((now - start))"

  if [[ $rc -ne 0 ]]; then
    echo "Error: '${desc}' failed after ${elapsed}s (exit $rc)." >&2
    return "$rc"
  fi

  echo "==> [$(ts)] Done: ${desc} (${elapsed}s)"
}

if [[ "$(uname -s)" != "Darwin" ]]; then
  echo "Error: This script is for macOS only." >&2
  exit 1
fi

if ! command -v brew >/dev/null 2>&1; then
  echo "Error: Homebrew ('brew') not found in PATH." >&2
  echo "Install Homebrew first: https://brew.sh/" >&2
  exit 1
fi

# Homebrew taps are git clones; local formula changes must be committed to be visible.
if command -v git >/dev/null 2>&1 && git -C "$repo_root" rev-parse --is-inside-work-tree >/dev/null 2>&1; then
  if git -C "$repo_root" status --porcelain Formula/ | grep -q .; then
    echo "Error: You have uncommitted changes under Formula/." >&2
    echo "Homebrew taps are git clones, so uncommitted formulae won't be visible to 'brew tap'." >&2
    echo "Commit your changes, then re-run this script." >&2
    exit 1
  fi
fi

# Optional: disable auto-update for faster, more predictable runs.
export HOMEBREW_NO_AUTO_UPDATE="${HOMEBREW_NO_AUTO_UPDATE:-1}"

cd "$repo_root"

echo "==> [$(ts)] Using repo: $repo_root"

# Strawberry includes local Homebrew formulae under Formula/.
# Homebrew requires formulae to be in a tap; we tap this repo via file:// and then
# update the tap clone to the latest commit (without untapping, since Homebrew may
# refuse to untap when formulae from this tap are installed).
run_with_heartbeat "Ensuring local tap exists: strawberry/local" bash -lc \
  "brew tap | grep -q '^strawberry/local$' || brew tap strawberry/local 'file://$repo_root' >/dev/null"

run_with_heartbeat "Refreshing strawberry/local tap clone" bash -lc '
  tap_repo="$(brew --repo strawberry/local)"
  cd "$tap_repo"
  # Make sure the remote points at the current local repo path.
  git remote set-url origin "file://'"$repo_root"'"
  git fetch -q origin
  default_ref="$(git symbolic-ref -q --short refs/remotes/origin/HEAD || true)"
  if [ -z "$default_ref" ]; then
    default_ref="origin/master"
  fi
  git reset --hard -q "$default_ref"
'

for f in kdsingleapplication-qt6 qtsparkle-qt6 sparkle-framework libgpod macdeploycheck; do
  if ! brew info "strawberry/local/${f}" >/dev/null 2>&1; then
    echo "Error: Missing formula strawberry/local/${f} in the tapped repo." >&2
    echo "If you recently added/changed formulae, ensure they are committed, then refresh the tap:" >&2
    echo "  git -C \"$(brew --repo strawberry/local)\" pull --ff-only" >&2
    exit 1
  fi
done

run_with_heartbeat "Installing dependencies from Brewfile" \
  brew bundle install --file "$repo_root/Brewfile" --verbose

cat <<EOF

Done.

Notes for packaging (optional):
- The CMake target 'deploy' expects these env vars for bundling GIO + GStreamer bits:
    export GIO_EXTRA_MODULES="\$(brew --prefix)/lib/gio/modules"
    export GST_PLUGIN_SCANNER="\$(brew --prefix gstreamer)/libexec/gstreamer-1.0/gst-plugin-scanner"
    export GST_PLUGIN_PATH="\$(brew --prefix)/lib/gstreamer-1.0"

EOF