#!/usr/bin/env bash

set -euo pipefail

source "$(cd "$(dirname "$0")/.." && pwd)/lib/common.sh"

require_cmd bash
require_cmd dpkg-deb
require_cmd git

load_build_config

work_root="$(ci_work_root)"
helper_dir="$work_root/hercules-helper"
artifacts_dir="$work_root/artifacts"
build_path="/home/bill/hyperion-build-package"
metadata_file="$(ci_metadata_file)"

if [[ -f "$metadata_file" ]]; then
  set -a
    # shellcheck disable=SC1090
    . "$metadata_file"
  set +a

  if [[ "${SKIP_PACKAGE_BUILD:-false}" == "true" ]]; then
    log "Skipping package build because the package already exists in Gitea"
    exit 0
  fi
fi

log "Preparing CI work root at $work_root"
rm -rf "$work_root"
mkdir -p "$artifacts_dir"

log "Cloning helper repo $REPO (branch: $BRANCH)"
git clone --depth 1 --branch "$BRANCH" "$REPO" "$helper_dir"

helper_entrypoint=""
if [[ -f "$helper_dir/packagers/debian/create-package-hyperion.sh" ]]; then
  helper_entrypoint="$helper_dir/packagers/debian/create-package-hyperion.sh"
elif [[ -f "$helper_dir/create-package-hyperion.sh" ]]; then
  helper_entrypoint="$helper_dir/create-package-hyperion.sh"
else
  die "No Hyperion package entrypoint found in $helper_dir"
fi

compat_template_dir="$helper_dir/packagers/debian/hyperion-4.4"
if [[ -d "$helper_dir/packagers/debian/hercules-hyperion" ]] && [[ ! -e "$compat_template_dir" ]]; then
  ln -s "hercules-hyperion" "$compat_template_dir"
fi

mkdir -p /home/bill
rm -rf "$build_path"
mkdir -p "$build_path"

log "Invoking helper repo Debian package script"
(
  cd "$helper_dir"
  env \
    opt_prompts=false \
    opt_beeps=false \
    opt_verbose=true \
    TRACE=false \
    build_path="$build_path" \
    OUTPUT_DIR="$artifacts_dir" \
    bash "$helper_entrypoint"
)

artifact_candidates=()
while IFS= read -r candidate; do
  artifact_candidates+=("$candidate")
done < <(
  find "$artifacts_dir" -maxdepth 1 -type f -name '*.deb' 2>/dev/null | sort
)

if (( ${#artifact_candidates[@]} == 0 )); then
  while IFS= read -r candidate; do
    artifact_candidates+=("$candidate")
  done < <(
    find "$build_path" -maxdepth 1 -type f -name '*.deb' 2>/dev/null | sort
  )
fi

(( ${#artifact_candidates[@]} > 0 )) || die "Expected package was not created under $artifacts_dir or $build_path"

raw_package_path="${artifact_candidates[0]}"
if (( ${#artifact_candidates[@]} > 1 )); then
  raw_package_path="${artifact_candidates[-1]}"
fi

package_name="$(dpkg-deb -f "$raw_package_path" Package)"
package_version="$(dpkg-deb -f "$raw_package_path" Version)"
package_arch="$(dpkg-deb -f "$raw_package_path" Architecture)"
artifact_path="$artifacts_dir/${package_name}_${package_version}_${package_arch}.deb"
package_distribution="${DEBIAN_DISTRIBUTION:-$(detect_debian_distribution)}"

if [[ "$raw_package_path" != "$artifact_path" ]]; then
  cp "$raw_package_path" "$artifact_path"
fi

cat >"$metadata_file" <<EOF
PACKAGE_FILE=$artifact_path
PACKAGE_NAME=$package_name
PACKAGE_VERSION=$package_version
PACKAGE_ARCHITECTURE=$package_arch
PACKAGE_DISTRIBUTION=$package_distribution
PACKAGE_COMPONENT=${DEBIAN_COMPONENT:-$DEFAULT_DEBIAN_COMPONENT}
EOF

log "Built package artifact: $artifact_path"