#!/bin/bash

set -e

if [[ "$EUID" -ne 0 ]]; then
    echo -e "\e[31m[FATAL]\e[39m Currently this script requires being ran as root user - please try again as root."
    exit 1
fi

echo -e "\n\nINSTALL LOG: $(date --rfc-3339=seconds)\n" >> /tmp/multiplane-install.log

info() {
    echo -e "\e[34m[INFO]\e[39m $1"
    echo "[INFO] $1" >> /tmp/multiplane-install.log
}

debug() {
    if [[ ! -z "$DEBUG" ]]; then
        echo -e "\e[96m[DEBUG]\e[39m $1"
    fi
    echo "[DEBUG] $1" >> /tmp/multiplane-install.log
}

warn() {
    echo -e "\e[33m[WARNING]\e[39m $1"
    echo "[WARNING] $1" >> /tmp/multiplane-install.log
}

fatal() {
    echo -e "\e[31m[FATAL]\e[39m $1"
    echo "[FATAL] $1" >> /tmp/multiplane-install.log
    exit 1
}

install_dependencies () {

info "Checking dependencies..."

# Install curl if not present (required for downloading Nix tarball)
if ! command -v curl &> /dev/null; then
    info "Installing curl..."
    if command -v apt-get &> /dev/null; then
        sudo apt-get update && sudo apt-get install -y curl
    elif command -v dnf &> /dev/null; then
        sudo dnf install -y curl
    elif command -v yum &> /dev/null; then
        sudo yum install -y curl
    elif command -v pacman &> /dev/null; then
        sudo pacman -S --noconfirm curl
    else
        fatal "Please install curl manually for your distribution"
    fi
fi

# Install xz-utils if not present (required for decompressing Nix tarball)
if ! command -v xz &> /dev/null; then
    echo "Installing xz-utils..."
    if command -v apt-get &> /dev/null; then
        sudo apt-get update && sudo apt-get install -y xz-utils
    elif command -v dnf &> /dev/null; then
        sudo dnf install -y xz
    elif command -v yum &> /dev/null; then
        sudo yum install -y xz
    elif command -v pacman &> /dev/null; then
        sudo pacman -S --noconfirm xz
    else
        fatal "Please install xz-utils manually for your distribution"
    fi
fi

# Download and run the Nix installer (multi-user mode with daemon)
curl --proto '=https' --tlsv1.2 -L https://nixos.org/nix/install | sh -s -- --daemon

}

main() {
    info "Script loaded, starting the install process..."

    install_dependencies()

    info "Install script finished. You can now run .\multiplane.sh"
}

main