#!/bin/bash

# Base wget command
BASE_CMD="wget -r -c --no-host-directories --no-parent --reject='index.html*'"

# Let's get the URL first
if [ "$1" == "" ]; then
	echo "No url given!" >&2
	echo "Usage: $0 URL RATELIMIT [USER PASSWORD]" >&2
	exit 1
else
	PARAM_URL="'$1'"
	shift
fi

# Collect non-essential parameters and build the final command to run
FINAL_CMD="$BASE_CMD"

# Collect rate limit
if [ "$1" != "" ]; then
	PARAM_LIMIT="--limit-rate='$1'"
	FINAL_CMD="$FINAL_CMD $PARAM_LIMIT"
fi
shift

# Collect user + pass, error out if one is missing
if [ "$1" != "" ]; then
	PARAM_USER="--user='$1'"
	shift
	# Collect password, too
	if [ "$1" == "" ] ; then
		echo "User given, but password missing?!" >&2
		exit 1
	else
		PARAM_PASS="--password='$1'"
	fi
	FINAL_CMD="$FINAL_CMD $PARAM_USER $PARAM_PASS"
fi
shift

# Append URL and that's it.
FINAL_CMD="$FINAL_CMD $PARAM_URL"

# Debug output
echo "-------------------------------------"
echo "PARAM_LIMIT: $PARAM_LIMIT"
echo "PARAM_USER: $PARAM_USER"
echo "PARAM_PASS: $PARAM_PASS"
echo "PARAM_URL: $PARAM_URL"
echo "-------------------------------------"
echo "Running command: $FINAL_CMD"
echo "-------------------------------------"
echo ""
eval $FINAL_CMD