#!/bin/bash

source lib/metascript.sh

enforcedir polls exists

log_warn "No check is done to verify if container is already started"

defaultmetainit $@

podman=podman
nextcloud_image=nextcloud_local
# same name than image
container_name=$nextcloud_image

rel_bind_folder=bind_folder
bind_folder=$(pwd)/$rel_bind_folder

# if wanting to expose nextcloud on host address
detect_expose_address()
{
    #lazzy detection base on first local ip
    declare -a possible_hosts=($(ip a | grep 192.168.1 |awk '{ gsub("/24","",$2); print $2 ; }'))
    hosts_n=${#possible_hosts[@]}
    if (( hosts_n > 1 ))
    then
	log_warn "multiple hosts $hosts_n"
    fi
    listen_host=${possible_hosts[0]}
}

# detect_expose_address
listen_host=127.0.0.1
log_info "liston on $listen_host"

declare -a podman_args

host_free_port=8081
log_warn "[TODO] detect free port on $listen_host, use $host_free_port"

podman_args+=(-p $listen_host:$host_free_port:80 --name=$container_name --replace)

# container 33 www-data => current user.
current_uid=$(id -u)
current_gid=$(id -g)
container_www_data_uid=33
container_www_data_gid=33
first_subuid=100000
first_subgid=100000
mapped_root_uid=$(( first_subuid + container_www_data_uid - 1 ))
range_1=$(( container_www_data_uid - 1 ))

# does not work idmap requires CAP_SYS_ADMIN permission not set for standard user
# www_data_idmap=",idmap=uids=0-${mapped_root_uid}-1#1-${first_subuid}-${range_1}#${container_www_data_uid}-${current_uid}-1#34-100033-2000;gids=0-${mapped_root_uid}-1#1-${first_subgid}-${range_1}#${container_www_data_gid}-${current_gid}-1#34-100033-2000"

# no theme yet
for dir in nextcloud custom_apps config data
do
    folder=${bind_folder}/$dir
    if [[ ! -f $folder ]]
    then
	mkdir -p $folder
    fi
    idmap=""
    if [[ $dir == nextcloud ]]
    then
	target=/var/www/html
    else
	target=/var/www/html/$dir
	if [[ $dir == custom_apps ]]
	then
	    # current user will map to www-data for this binding
	    idmap="$www_data_idmap"
	fi
    fi
    podman_args+=(--mount type=bind,source=${folder},target=${target}${idmap})
done

# with root ...
podman_args+=(--mount type=bind,source=$(pwd)/polls,target=/root/polls)

# network bridge slirp4netns (not pasta) and allow_host_loopback)
# podman_args+=(--network=slirp4netns:allow_host_loopback=true)

# pasta
podman_args+=(--network=pasta:--map-host-loopback=10.1.1.13)

if [[ -n $detach ]]
then
    podman_args+=(-d)
fi

log_info 'Adjusting trusted_domains in ${bind_folder}/config/config.php'
# assumes a php is installed locally, could be changed to use a podman image or container
config_php=${bind_folder}/config/config.php
if [[ -f $config_php ]]
then
    
    sudo cp $config_php config.php
    sudo chown $(id -u):$(id -g) config.php    
    php patch_config.php "$listen_host:$host_free_port" | sudo tee ${bind_folder}/config/config.php >/dev/null
else
    log_info "no config/php, first install ?"
fi

log_info "run podman with args ${podman_args[@]}"

log_info "now you can start a browser on http://$listen_host:$host_free_port"

$defer $podman run "${podman_args[@]}" $nextcloud_image