#!/bin/zsh

apply_overrides() {
    echo $3 |
        sed -E 's/; */\n/g' |
        while IFS=$'\n ' read -r override_key override_values; do
            [[ -z $override_values ]] && continue
            override_key=$(echo $override_key | sed 's/[: ]//g')
            [[ $override_key = $BOX_SETUP_OS ]] && eval $override_values
            [[ $override_key = $BOX_SETUP_DISTRO ]] && eval $override_values
            [[ $4 =~ $override_key ]] && eval $override_values
        done
    [[ -z $name || -z $kind ]] && echo "zz_skip,zz_skip" || echo "$name,$kind"
}

echo "---- updating package manager / packages"
[[ -n "$BOX_SETUP_UPDATE_PKG_MANAGER_AND_DEFS_CMD" ]] &&
    ${=BOX_SETUP_UPDATE_PKG_MANAGER_AND_DEFS_CMD}
[[ -n "$BOX_SETUP_UPDATE_PKGS_CMD" ]] && ${=BOX_SETUP_UPDATE_PKGS_CMD}

echo "---- installing programs ---------------"
[[ -z $1 ]] && system_types_list="base" || system_types_list="base,$1"
echo "-------- for system types: $system_types_list"

sed 1d "installs_and_builds/programs.csv" |
    while IFS=, read -r name kind os_overrides distro_overrides system_overrides notes; do
        apply_overrides $name $kind $os_overrides '' | IFS=, read -r name kind
        apply_overrides $name $kind $distro_overrides '' | IFS=, read -r name kind
        apply_overrides $name $kind $system_overrides $system_types_list |
            IFS=, read -r name kind

        [[ $name = 'zz_skip' || $kind = 'zz_skip' ]] && continue

        [[ $kind = 'package_manager' ]] && ${=BOX_SETUP_INSTALL_COMMAND} ${=name} || {
            [[ $kind = 'build_custom' ]] && {
                target=$(echo "custom_$BOX_SETUP_OS-$BOX_SETUP_DISTRO-$name" | tr '-' '_')
                "./installs_and_builds/$target"
            }
        }
    done