#!/bin/bash

DBADDR='localhost:5984'
DEBUG=0
DATABASE=""
LOGFILE="/dev/null"
REMREV=0
FIXQUOTES=0

usage () {
	echo ""
	echo "Download couchdb data from local database"
	echo ""
	echo "USAGE: `basename $0` [OPTIONS] <DB-NAME>"
	echo " "
	echo "Options:"
	echo "  -h             ...Show help"
	echo "  -l <file>      ...Specify a log file for curls output messages."
	echo "  -q             ...Clean-up newline and quoting issues, particularly for views."
	echo "  -r             ...Remove _rev entry from documents."
	echo "                    Needed if resulting data is going to populate a new database."
	echo "  -s <url>       ...Specifiy server IP/URL to download from. Default: localhost:5984"
	echo "  -v <0-3>       ...Increase print messages for more script info."
	echo "                    0 - Print only standard optput"
	echo "                    1 - Print full debug messages including everyting from 0"
	echo ""
	exit 1
}

while getopts hl:qrs:v: OPT; do
	case "$OPT" in
		h)
			usage ;;
		l)
			LOGFILE=$OPTARG ;;
		q)
			FIXQUOTES=1 ;;
		r)
			REMREV=1 ;;
		s)
			DBADDR=$OPTARG ;;
		v)
			DEBUG=$OPTARG ;;
		*)
			break
			;;
	esac
done

# get rid of the just-finished flag arguments
shift $(($OPTIND-1))

# Finally put together our entire options string
if [ "$DEBUG" -ge "1" ]; then set -o verbose; fi

# If nothing is specified, then send us the help file
if [[ $# < 1 ]]; then
		usage
else
	DATABASE=$1
fi

# Grab our data and see if we get anything
#   dos2unit fixes newline issues
#   sed will remove the first line of the result (a container the wraps the json data)
#   head removes the last line of the result (end of container wrapping json)
#   sed & sed pull the actual document out from the array in the container result
RESULT=$(curl --fail -vX GET "${DBADDR}/${DATABASE}/_all_docs?include_docs=true" 2>> "$LOGFILE" |\
	dos2unix |\
	sed -e "1d" |\
	head -n -1 |\
	sed 's/\},$//g'|\
	sed 's/^.*doc\"\://g')

# If we are supposed to, clen it all up
if [[ $FIXQUOTES -gt 0 ]]; then RESULT=$(echo "$RESULT" |sed "s/[\]\"/'/g" | sed "s/[\]n//g" |tr -s " "); fi

# Finally, remove our _rev number if requested and print
if [[ $REMREV -lt '1' ]]; then
	echo "$RESULT"
else
	echo "$RESULT" | sed 's/\"\_rev\":\"[0-9a-z\-]*\",//g'
fi