#!/bin/bash

set -ex

function dependencies() {
    if ! which go > /dev/null ; then
	apt-get update
        apt-get install -y -qq wget tar
        wget https://go.dev/dl/go1.20.2.linux-amd64.tar.gz
        tar zxf go1.20.2.linux-amd64.tar.gz
        export PATH=$PATH:$(pwd)/go/bin
    fi
    if ! which make > /dev/null ; then
	apt-get install -y -qq make
    fi
}

function checkout() {
    local git="$1"
    if ! test -d forgejo-runner ; then
	git clone $git forgejo-runner
    fi
}

function build() {
    local version="$1"

    (
	cd forgejo-runner
	git checkout $version
	make build
    )
}

function register() {
    local forgejo="$1"
    docker exec --user 1000 forgejo forgejo actions --registration-token-admin > forgejo-runner-token
    timeout --signal=KILL 30 ./forgejo-runner/forgejo-runner register --no-interactive --instance "$forgejo" --name runner --token $(cat forgejo-runner-token)
}

function run() {
    ./forgejo-runner/forgejo-runner daemon >& forgejo-runner.log &
    echo $! > forgejo-runner-pid
}    

function setup() {
    local git="${1:-https://codeberg.org/forgejo/runner}"
    local version="${1:-v1.4.1}"
    local forgejo="${1:-http://$(cat forgejo-ip):3000/}"

    dependencies
    checkout $git
    build $version
    register $forgejo
    run
}

function teardown() {
    if test -f forgejo-runner-pid ; then
	kill -9 $(cat forgejo-runner-pid)
	rm -f forgejo-runner-pid
    fi
}

"$@"