#!/bin/bash

# Create a .deb package
# This script originates from https://github.com/sharkdp/fd

set -e -u -x -o pipefail


project_name="mpk"
project_maintainer="Trevor Gross"
project_homepage="https://github.com/pluots/mpk"
stage_dir_root="$STAGING_DIR"

copyright_years="2023 - "$(date "+%Y")
dpkg_stage_root="./debian-package"
dpkg_dir="${dpkg_stage_root}/dpkg"
mkdir -p "${dpkg_dir}"

dpkg_basename="$project_name"
do_test="${DO_TEST:-false}" 

# dpkg_conflicts=mpck-musl

# case "$TARGET" in *-musl) dpkg_basename=${project_name}-musl
#     dpkg_conflicts=${project_name} ;;
# esac;

dpkg_version=${RELEASE_VERSION}

echo "Building .deb for '${project_name}' version '${dpkg_version}'"
echo "Staging directory: ${stage_dir_root}"
echo "Dpkg staging directory: ${dpkg_dir}"
echo "Do test: ${do_test}"

unset dpkg_arch
case "$TARGET" in
    aarch64-*-linux-*) dpkg_arch=arm64 ;;
    arm-*-linux-*hf) dpkg_arch=armhf ;;
    i686-*-linux-*) dpkg_arch=i686 ;;
    x86_64-*-linux-*) dpkg_arch=amd64 ;;
    *) dpkg_arch=notset ;;
esac;

dpkg_file_name="${dpkg_basename}_${dpkg_version}_${dpkg_arch}.deb"
# echo "dpkg_file_name=${dpkg_file_name}" >> $GITHUB_OUTPUT

echo "Dpkg file name: ${dpkg_file_name}"

# Binary
install -Dm755 "${stage_dir_root}/${project_name}" "${dpkg_dir}/usr/bin/${project_name}"

# Man page
install -Dm644 "${stage_dir_root}/doc/${project_name}.1" "${dpkg_dir}/usr/share/man/man1/${project_name}.1"
gzip -n --best "${dpkg_dir}/usr/share/man/man1/${project_name}.1"

# Autocompletion files
install -Dm644 "${stage_dir_root}/completion/mpk.bash" "${dpkg_dir}/usr/share/bash-completion/completions/$project_name"
install -Dm644 "${stage_dir_root}/completion/mpk.fish" "${dpkg_dir}/usr/share/fish/vendor_completions.d/$project_name.fish"
install -Dm644 "${stage_dir_root}/completion/_mpk" "${dpkg_dir}/usr/share/zsh/vendor-completions/_$project_name"

# README and LICENSE
install -Dm644 "${stage_dir_root}/README.md" "${dpkg_dir}/usr/share/doc/${dpkg_basename}/README.md"
install -Dm644 "${stage_dir_root}/LICENSE" "${dpkg_dir}/usr/share/doc/${dpkg_basename}/LICENSE"
install -Dm644 "${stage_dir_root}/doc/CHANGELOG.md" "${dpkg_dir}/usr/share/doc/${dpkg_basename}/changelog"
gzip -n --best "${dpkg_dir}/usr/share/doc/${dpkg_basename}/changelog"

cat > "${dpkg_dir}/usr/share/doc/${dpkg_basename}/copyright" <<EOF
Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: ${project_name}
Source: ${project_homepage}

Files: *
Copyright: ${copyright_years} ${project_maintainer}
License: Apache-2.0

License: Apache-2.0
    On Debian systems, the complete text of the Apache-2.0 can be found in the
    file /usr/share/common-licenses/Apache-2.0.
EOF

chmod 644 "${dpkg_dir}/usr/share/doc/${dpkg_basename}/copyright"

# control file
mkdir -p "${dpkg_dir}/DEBIAN"
cat > "${dpkg_dir}/DEBIAN/control" <<EOF
Package: ${dpkg_basename}
Version: ${dpkg_version}
Section: utils
Priority: optional
Maintainer: ${project_maintainer}
Homepage: ${project_homepage}
Architecture: ${dpkg_arch}
Provides: ${project_name}
Description: A simple tool for converting between MessagePack and JSON formats
EOF
# Conflicts: ${dpkg_conflicts}

dpkg_output="${dpkg_stage_root}/${dpkg_file_name}"
echo "dpkg_output=${dpkg_output}" >> "$GITHUB_ENV"

# build dpkg
fakeroot dpkg-deb -Zxz --build "${dpkg_dir}" "${dpkg_output}"

echo "ASSET=${dpkg_output}" >> "$GITHUB_ENV"

# Verify the package works if we can
if [ "$do_test" = "true" ]; then
    echo "Running install test. Requires sudo"
    dpkg -i "${dpkg_output}"
    mpk --help
    man 1 mpk
    dpkg -r "${dpkg_basename}"
fi