println("=====================");
println("Uptime Kuma Installer");
println("=====================");
println("");
println("---------------------------------------");
println("This script is designed for Linux and basic usage.");
println("For advanced usage, please go to https://github.com/louislam/uptime-kuma/wiki/Installation");
println("---------------------------------------");
println("");
println("Local - Install Uptime Kuma in your current machine with git, Node.js 14 and pm2");
println("Docker - Install Uptime Kuma Docker container");
println("");

if ("$1" != "") {
    type = "$1";
} else {
    call("read", "-p", "Which installation method do you prefer? [DOCKER/local]: ", "type");
}

if (type == "local") {

    if ("$1" != "") {
        port = "$3";
    } else {
        call("read", "-p", "Listening Port [3001]: ", "port");
    }

    if (exists("/etc/redhat-release")) {
        os = call("cat", "/etc/redhat-release");
        distribution = "rhel";
    }

    bash("arch=$(uname -i)");

    println("Your OS: " ++ os);
    println("Distribution: " ++ distribution);
    println("Arch: " ++ arch);

    if (distribution == "rhel") {
        bash("nodePath=$(command -v node)");

        if (nodePath != "") {
            bash("nodeVersion=$(node -e 'console.log(process.versions.node.split(`.`)[0])')");
            println("Node Version: " ++ nodeVersion);

            if (nodeVersion < "12") {
                println("Error: Required Node.js 14");
                call("exit", "1");

            } else {
                if (nodeVersion == "12") {
                    println("Warning: NodeJS " ++ nodeVersion ++ " is not tested.");
                }
                println("OK");
            }

        } else {

        }



        call("yum", "install", "git", "-y");
    }

} else {
    call("read", "-p", "Expose Port [3001]: ", "port");
    call("read", "-p", "Volume Name [uptime-kuma]: ", "volume");
}