#! /bin/bash
#
# preamble
# Copyright (C) 2016 Adrian Perez <aperez@igalia.com>
#
# Distributed under terms of the MIT license.
#

function nginx_conf_generate () {
	if ${DYNAMIC} ; then
		echo 'load_module modules/ngx_http_fancyindex_module.so;'
	fi
	cat <<-EOF
	worker_processes 1;
	events { worker_connections 1024; }
	http {
		include mime.types;
		default_type application/octet-stream;
		sendfile on;
		keepalive_timeout 65;
		server {
			server_name localhost;
			listen 127.0.0.1:8888;
			root ${TESTDIR};
			error_page 500 502 503 504 /50x.html;
			location = /50x.html { root html; }
			location / {
				index index.html;
				fancyindex on;
				$*
			}
		}
	}
	EOF
}

readonly NGINX_CONF="${PREFIX}/conf/nginx.conf"
readonly NGINX_PID="${PREFIX}/logs/nginx.pid"
rm -f "${NGINX_CONF}" "${NGINX_PID}"
mkdir -p "${PREFIX}/logs"

function nginx () {
	env - PATH="${PATH}" "${PREFIX}/sbin/nginx" "$@"
}

function nginx_conf () {
	nginx_conf_generate "$@" > "${NGINX_CONF}"
}

function nginx_is_running () {
	[[ -r ${NGINX_PID} ]] && kill -0 $(< "${NGINX_PID}")
}

function nginx_stop () {
	if nginx_is_running ; then nginx -s stop ; fi
	rm -f "${NGINX_PID}"
}
trap nginx_stop EXIT

function nginx_start () {
	if [[ $# -gt 0 || ! -r ${NGINX_CONF} ]] ; then nginx_conf "$@" ; fi
	nginx_stop  # Ensure that it is not running.
	nginx
}

function fetch () {
	local -a opts=( -q )
	if [[ $1 = --with-headers ]] ; then
		opts+=( -S )
		shift
	fi
	wget "${opts[@]}" -O- "http://localhost:8888${1:-/}" 2>&1
}

function fail () {
	printf "(FF) "
	printf "$@"
	exit 1
} 1>&2

function warn () {
	printf "(WW)"
	printf "$@"
} 1>&2
