#!/bin/sh
set -e

ALT_COMMON_REPO_PATH="/etc/apt/sources.list.d/alt-common-els.list"
GPG_KEY_PATH_SOURCE="/usr/share/alt-common-release/keyrings/tuxcare-keyring.gpg"
GPG_KEY_PATH_DEST="/etc/apt/trusted.gpg.d/tuxcare-keyring.gpg"

install_gpg_key() {
    if [ ! -f "$GPG_KEY_PATH_SOURCE" ]; then
        echo "Error: Source GPG key file not found: $GPG_KEY_PATH_SOURCE" >&2
        return 1
    fi

    mkdir -p "$(dirname "$GPG_KEY_PATH_DEST")"

    if cp "$GPG_KEY_PATH_SOURCE" "$GPG_KEY_PATH_DEST"; then
        chmod 644 "$GPG_KEY_PATH_DEST"
        echo "GPG key installed successfully"
    else
        echo "Error: Failed to copy GPG key from $GPG_KEY_PATH_SOURCE to $GPG_KEY_PATH_DEST" >&2
        return 1
    fi
}

create_alt_common_repo() {
    OS_CODENAME=$(grep '^VERSION_CODENAME=' /etc/os-release | cut -d'=' -f2 | sed -e 's@"@@g')
    OS_VER=$(grep '^VERSION_ID=' /etc/os-release | cut -d'=' -f2 | sed -e 's@"@@g')
    OS_NAME=$(grep '^ID=' /etc/os-release | cut -d'=' -f2 | sed -e 's@"@@g')

    mkdir -p "$(dirname "$ALT_COMMON_REPO_PATH")"

    cat <<EOF > "$ALT_COMMON_REPO_PATH"
### THIS FILE IS AUTOMATICALLY CONFIGURED ###
# You may comment out this entry, but any other modifications may be lost.
deb [arch=amd64] https://repo.alt.tuxcare.com/alt-common/deb/${OS_NAME}/${OS_VER}/stable ${OS_CODENAME} main
EOF

    chmod 644 "$ALT_COMMON_REPO_PATH"
    echo "Repository configuration created successfully"
}

install_gpg_key
create_alt_common_repo