#!/bin/bash
set -euo pipefail

REPO_ROOT="$(git rev-parse --show-toplevel 2>/dev/null || true)"
if [[ -z "$REPO_ROOT" ]]; then
  exit 0
fi

cd "$REPO_ROOT"

changed_files="$(git diff-tree --no-commit-id --name-only -r HEAD 2>/dev/null || true)"
if [[ -z "$changed_files" ]]; then
  changed_files="$(git show --pretty='' --name-only HEAD 2>/dev/null || true)"
fi

if ! printf '%s\n' "$changed_files" | grep -q '^swift-client/'; then
  exit 0
fi

if [[ ! -x "$REPO_ROOT/swift-client/sync-devices.sh" ]]; then
  echo "post-commit: swift-client/sync-devices.sh is missing or not executable; skipping iOS sync."
  exit 0
fi

log_dir="$REPO_ROOT/swift-client/test-output/git-hooks"
mkdir -p "$log_dir"
log_file="$log_dir/post-commit-ios-sync-$(date +%Y%m%d-%H%M%S).log"

(
  cd "$REPO_ROOT/swift-client"
  ./sync-devices.sh --ios-only --skip-generate
) >"$log_file" 2>&1 &

echo "post-commit: iOS device sync triggered in background (log: $log_file)"