#!/usr/bin/env bash
# Required Binaries:
#   | simple-http-server
#   | sass

# ===== Configuration ===== #
ADDR="127.0.01" # bind address
PORT="8000"     # bind port
WEBROOT="www"   # root web directory
USE_INDEX=true
NO_CACHE=true
declare -a SRV_ARGS=()

SCSS_PATH="$WEBROOT/scss"
CSS_PATH="$WEBROOT/css"
# ========================= #

# ===== Local State ===== #
SASS_PID=
# ======================= #

function cleanup {
	if [[ -n "$SASS_PID" ]]; then
		kill "$SASS_PID"
	fi
}

# Watch .sass/.scss files and compile on change
function watch_scss {
	# watch format "SCSS_PATH:OUT_PATH"
	sass --watch "$SCSS_PATH:$CSS_PATH"
}
	
function host {
	local args=$@
	# Apply Flags
	if [[ "$NO_CACHE" == true ]]; then
		args+=("--nocache")
	fi
	if [[ "$USE_INDEX" == true ]]; then
		args+=("--index")
	fi
	
	# Apply Options
	args+=(--ip "$ADDR" --port "$PORT")
	
	simple-http-server $args $@ -- "$WEBROOT"
}

trap cleanup EXIT
set -ueo pipefail
set -x

# auto compile scss changes
watch_scss &
SASS_PID=$!

# host dev server
host ${SRV_ARGS[@]}