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

repo_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
build_number="${1:-}"
codesign_key="${UM_TRACE_CODESIGN_KEY:-Apple Distribution}"
codesign_profile="${UM_TRACE_CODESIGN_PROVISION:-UM Trace App Store}"
profile_dir="${HOME}/Library/MobileDevice/Provisioning Profiles"
artifacts_dir="${repo_dir}/artifacts/ios-signed"
artifact_name="UMTrace-ios-build-${build_number}.ipa"

if [[ ! "${build_number}" =~ ^[1-9][0-9]*$ ]]; then
  echo "A positive numeric iOS build number is required." >&2
  exit 2
fi

if ! security find-identity -v -p codesigning | grep -Fq "${codesign_key}"; then
  echo "Signing identity is unavailable: ${codesign_key}" >&2
  exit 3
fi

profile_found=false
if [[ -d "${profile_dir}" ]]; then
  for profile in "${profile_dir}"/*.mobileprovision; do
    [[ -f "${profile}" ]] || continue
    installed_name="$(openssl smime -inform der -verify -noverify -in "${profile}" 2>/dev/null | plutil -extract Name raw -o - - 2>/dev/null || true)"
    if [[ "${installed_name}" == "${codesign_profile}" ]]; then
      profile_found=true
      break
    fi
  done
fi

if [[ "${profile_found}" != true ]]; then
  echo "Provisioning profile is unavailable: ${codesign_profile}" >&2
  exit 3
fi

UM_TRACE_CODESIGN_KEY="${codesign_key}" \
UM_TRACE_CODESIGN_PROVISION="${codesign_profile}" \
  "${repo_dir}/scripts/publish-testflight.sh" "${build_number}"

source_ipa="$(find "${repo_dir}/FieldLogger/bin/Release/net9.0-ios/ios-arm64" -type f -name '*.ipa' -print -quit)"
if [[ -z "${source_ipa}" || ! -f "${source_ipa}" ]]; then
  echo "The signed IPA was not created." >&2
  exit 4
fi

mkdir -p "${artifacts_dir}"
ditto "${source_ipa}" "${artifacts_dir}/${artifact_name}"

verification_dir="$(mktemp -d)"
ditto -x -k "${artifacts_dir}/${artifact_name}" "${verification_dir}"
app_bundle="$(find "${verification_dir}/Payload" -maxdepth 1 -type d -name '*.app' -print -quit)"

if [[ -z "${app_bundle}" ]]; then
  echo "The IPA does not contain an app bundle." >&2
  exit 4
fi

codesign --verify --deep --strict --verbose=2 "${app_bundle}"

bundle_id="$(plutil -extract CFBundleIdentifier raw -o - "${app_bundle}/Info.plist")"
signed_build_number="$(plutil -extract CFBundleVersion raw -o - "${app_bundle}/Info.plist")"
if [[ "${bundle_id}" != "com.umagul.trace" || "${signed_build_number}" != "${build_number}" ]]; then
  echo "Signed bundle metadata is incorrect: ${bundle_id} (${signed_build_number})." >&2
  exit 5
fi

(
  cd "${artifacts_dir}"
  shasum -a 256 "${artifact_name}" > "${artifact_name}.sha256"
)

echo "Verified signed iOS IPA: ${artifacts_dir}/${artifact_name}"