#!/bin/bash

# Source os-release
if [[ -r /etc/os-release ]]; then
    . /etc/os-release
else
    echo "Cannot determine OS (missing /etc/os-release)" >&2
    exit 1
fi

# Major version only
OSVER="${VERSION_ID%%.*}"
ARCH="$(uname -m)"
REPO_BASE_URL="https://repo.spictera.se/deb"
REPO_URL="${REPO_BASE_URL}/${ID}/${OSVER}/${ARCH}"
KEY_URL="${REPO_BASE_URL}/spictera_repo.gpg.key" # The public key file you exported earlier
KEY_PATH="/usr/share/keyrings/spictera-archive-keyring.gpg"
LIST_PATH="/etc/apt/sources.list.d/spictera.list"
REPO_LINE="deb [signed-by=${KEY_PATH}] ${REPO_URL} ./"

# Check for root privileges
if [ "$(id -u)" != "0" ]
then
	echo "This script must be run as root or with sudo." 1>&2
	exit 1
fi

echo "--- 1. Downloading and installing GPG public key ---"
# Use curl or wget to download the ASCII-armored key and convert it to binary format
if command -v curl > /dev/null
then
	curl -sSL "$KEY_URL" | gpg --dearmor -o "$KEY_PATH"
elif command -v wget > /dev/null
then
	wget -qO- "$KEY_URL" | gpg --dearmor -o "$KEY_PATH"
else
	echo "Error: Neither wget nor curl found. Please install one of them."
	exit 1
fi

if [ $? -eq 0 ]
then
	echo "GPG key installed successfully to $KEY_PATH."
else
	echo "Failed to download/install GPG key."
	exit 1
fi

echo "--- 2. Adding APT repository entry ---"
# Check if the repository line already exists before adding
if ! grep -q "^${REPO_LINE}" "$LIST_PATH" 2> /dev/null
then
	echo "$REPO_LINE" | tee "$LIST_PATH" > /dev/null
	echo "Repository line added to $LIST_PATH."
else
	echo "Repository line already exists in $LIST_PATH."
fi

echo "--- 3. Updating APT package index ---"
apt update

echo "--- Installation complete! ---"
echo "You can now install packages from Spictera repo, e.g., 'apt install <package-name>'"