#!/bin/bash
# SPDX-License-Identifier: MIT

set -e

export DEBIAN_FRONTEND=noninteractive

: ${RETRY_DELAYS:=1 1 5 5 15 30}

function retry() {
    local tmp=/tmp
    rm -f $tmp/retry.out
    success=false
    for delay in $RETRY_DELAYS ; do
        if "$@" >> $tmp/retry.out 2>&1 ; then
            success=true
            break
        fi
        cat $tmp/retry.out
        echo waiting $delay
        sleep $delay
    done
    if test $success = false ; then
        cat $tmp/retry.out
        return 1
    fi
}

function stop_daemon() {
    local daemon=$1
    local dir=${2:-.}

    if test -f $dir/$daemon-pid ; then
        local pid=$(cat $dir/$daemon-pid)
        kill -TERM $pid
        pidwait $pid || true
        for delay in 1 1 2 2 5 5 ; do
            if ! test -f $dir/$daemon-pid ; then
                break
            fi
            sleep $delay
        done
        ! test -f $dir/$daemon-pid
    fi
}

function dependency_go() {
    go_version="1.21.4.linux-amd64"  # Set the desired Go version here

    if ! which wget tar > /dev/null ; then
	apt-get install -y -qq wget tar
    fi

    if ! which go > /dev/null ; then
        wget --quiet "https://go.dev/dl/go$go_version.tar.gz"
        tar zxf "go$go_version.tar.gz"
        export PATH="$(pwd)/go/bin:$PATH"
    fi
}

function checkout() {
    local git="$1"
    git clone $git forgejo-runner
}

function build_runner() {
    local git="$1"
    local version="${2:-main}"
    local dir=$(mktemp -d)
    (
	cd $dir
	checkout "$git"
	dependency_go
	cd forgejo-runner
	git checkout "$version"
	make build
    )
    mv $dir/forgejo-runner/forgejo-runner /usr/local/bin
    forgejo-runner --version
    rm -fr "$dir"
}