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

set -e

SELF_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source $SELF_DIR/forgejo-lib.sh

: ${DIR:=/tmp/forgejo-binary}

if ${VERBOSE:-false}; then set -x; fi

function maybe_sudo() {
    if test $(id -u) != 0 ; then
        SUDO=sudo
    fi
}

function ensure_user() {
    local user=$1

    dependencies
    adduser --quiet --gecos $user --disabled-password $user
    adduser $user sudo
    adduser $user docker
    sed -i -e 's/^%sudo.*/%sudo ALL=(ALL:ALL) NOPASSWD:ALL/' /etc/sudoers
}

function dependencies() {
    maybe_sudo
    if ! which sudo curl daemon jq git-lfs ip sqlite3 envsubst unzip  > /dev/null ; then
        $SUDO apt-get update -qq
        $SUDO apt-get -q install -y -qq sudo curl daemon jq git-lfs iproute2 sqlite3 gettext-base unzip
    fi
}

function cleanup_logs() {
    local work_path=$DIR/forgejo-work-path

    rm -f $DIR/*.log
    rm -f $work_path/log/*.log
}

function download() {
    local url="$1"

    if ! test -f $DIR/forgejo ; then
	curl -sS $url > $DIR/forgejo.tmp
	if file $DIR/forgejo.tmp | grep --quiet 'Zip archive' ; then
	    unzip $DIR/forgejo.tmp -d $DIR
	    rm -f $DIR/forgejo.tmp
	else
	    mv $DIR/forgejo.tmp $DIR/forgejo
	fi
        chmod +x $DIR/forgejo
    fi
    echo $DIR/forgejo --version
    $DIR/forgejo --version
}

function create_user() {
    local user="$1"
    local password="$2"
    local work_path=$DIR/forgejo-work-path

    if test -f $work_path/forgejo-token; then
        return
    fi

    $DIR/forgejocli admin user create --admin --username "$user" --password "$password" --email "$user@example.com"
    $DIR/forgejocli admin user generate-access-token -u "$user" --raw --scopes all > $DIR/forgejo-token
    local url="http://$(cat $DIR/forgejo-ip):3000"
    echo "$url" > $DIR/forgejo-url
    echo "http://${user}:${password}@$(cat $DIR/forgejo-ip):3000" > $DIR/forgejo-auth-url
    retry forgejo-curl.sh --user "$user" --password "$password" --token @$DIR/forgejo-token login "$url"
    echo forgejo-curl.sh api_json $url/api/forgejo/v1/version
    forgejo-curl.sh api_json $url/api/forgejo/v1/version
}

function myip() {
    hostname -I | cut -f1 -d' '
}

function start_forgejo() {
    local work_path=$DIR/forgejo-work-path
    daemon --chdir=$DIR --unsafe --env="TERM=$TERM" --env="HOME=$HOME" --env="PATH=$PATH" --pidfile=$DIR/forgejo-pid --errlog=$DIR/forgejo-err.log --output=$DIR/forgejo-out.log -- $DIR/forgejo --config $work_path/app.ini --work-path $work_path
    if ! retry grep --no-messages --quiet 'Starting server on' $work_path/log/forgejo.log ; then
        cat $DIR/*.log
        cat $work_path/log/*.log
        return 1
    fi
    echo "$DIR/forgejo --config $work_path/app.ini --work-path $work_path" '"$@"' > $DIR/forgejocli
    chmod +x $DIR/forgejocli
    myip > $DIR/forgejo-ip
}

function reset_forgejo() {
    local config=$1
    local work_path=$DIR/forgejo-work-path
    rm -fr $work_path
    mkdir -p $work_path
    IP=$(myip) WORK_PATH=$work_path envsubst < $SELF_DIR/$config-app.ini > $work_path/app.ini
}

function teardown() {
    stop_daemon forgejo $DIR
    cleanup_logs
}

function setup() {
    local user="${1:-root}"
    local password="${2:-admin1234}"
    local url="${3:-https://codeberg.org/forgejo/forgejo/releases/download/v1.21.2-1/forgejo-1.21.2-1-linux-amd64}"

    dependencies
    download "$url"
    reset_forgejo forgejo-binary
    start_forgejo
    create_user "$user" "$password"
}

mkdir -p $DIR

"$@"