#!/usr/bin/env -S bash -e
#
# Copyright 2020 ALT-TEKNIK LLC

# Parse arguments
gitea_domain=git.alt-tek.com
unset version
while [[ $# -gt 0 ]]
do
    arg=$1
    shift
    case $arg in
    -h|--help)
        IFS= read -rd '' usage << __eof__ || true
Usage: release [-h] version

Builds a release and uploads it to $gitea_domain as a draft

Positional arguments:
    version     The release version

Optional arguments:
    -h, --help  Show this help message and exit
__eof__
        echo -n "$usage"
        exit 0
        ;;
    -*|--*)
        echo "Invalid argument '$arg'.  Use -h for help." >&2
        exit 1
        ;;
    *)
        if [[ -v version ]]
        then
            echo "Invalid argument '$arg'.  Use -h for help." >&2
            exit 1
        fi
        version=$arg
    esac
done
if [[ -z $version ]]
then
    echo 'Missing version argument.  Use -h for help.' >&2
    exit 1
fi

# Initialize globals used by handle-trap
signals='INT TERM'
unset tmp_dir
prj_name=2x10-dip-adapter
tea_login=$prj_name-release

# Usage: handle-trap [exit_code]
#
# Deletes temporary files and logs out of Tea upon script exit or signal
#
# Positional arguments:
#   exit_code   Optional exit code for which to trigger a script exit
function handle-trap {
    trap - EXIT $signals
    rm -rf "$tmp_dir"
    tea logout "$tea_login"
    if [[ $1 ]]
    then
        exit "$1"
    fi
}

# Set the trap
trap handle-trap EXIT
trap 'handle-trap 1' $signals

# Create a temporary build directory
tmp_dir=$(mktemp -d)

# Git a clean clone
repo=alt-tek/$prj_name
git_dir=$tmp_dir/git
git clone "$gitea_domain:$repo" "$git_dir"
cd "$git_dir"
tag=v$version
git checkout "tags/$tag" -b "tmp/$tag-build"

# Create the archive directory
archive_name=${prj_name}_$version
archive_dir=$tmp_dir/$archive_name
mkdir "$archive_dir"

# Generate board plots
plot_dir=$git_dir/plots
rm -rf "$plot_dir"
./plot.py "$version"
cp "$plot_dir"/* "$archive_dir"

# Tar and Gzip the archive
archive=$tmp_dir/$archive_name.tar.gz
tar -czf "$archive" -C "$tmp_dir" "$archive_name"

# Draft the release
tea_token=$(<"$HOME/.config/$gitea_domain/api-token")
tea login add -n "$tea_login" -u "https://$gitea_domain" -t "$tea_token"
title="Version $version"
tea releases create -l "$tea_login" -r "$repo" --tag "$tag" -d -t "$title" \
    -a "$archive"
echo "Drafted $title at https://$gitea_domain/$repo/releases"