#!/bin/sh

# Given the base URLs of two SAP Sailing servers, obtains their /sailingserver/api/v1/leaderboardgroups
# service output, sorts it, compares them, and if equal, obtains all corresponding leaderboardgroups/*
# documents and compares those in turn.

options='c'
while getopts $options option
do
    case $option in
        c) continue="1";;
        \?) echo "Invalid option"
            exit 4;;
    esac
done
shift $((OPTIND-1))

OLDSERVER=$1
NEWSERVER=$2
OLDGROUPS=leaderboardgroups.old.sed
NEWGROUPS=leaderboardgroups.new.sed

# If we continue, don't download again
if [ "$continue" != "1" ]; then
  wget -O - ${OLDSERVER}/sailingserver/api/v1/leaderboardgroups | sed -e 's/,/\n/g' -e 's/\[/\n/' -e 's/\]/\n/' -e 's/\"//g' | grep -v "^$" | sort >$OLDGROUPS
  wget -O - ${NEWSERVER}/sailingserver/api/v1/leaderboardgroups | sed -e 's/,/\n/g' -e 's/\[/\n/' -e 's/\]/\n/' -e 's/\"//g' | grep -v "^$" | sort >$NEWGROUPS
fi

diff leaderboardgroups.old.sed leaderboardgroups.new.sed
if [ "$?" = "0" ]; then
  OLD_LB=`head -n 1 $OLDGROUPS`
  NEW_LB=`head -n 1 $NEWGROUPS`
  while [ "$OLD_LB" != "" ]; do
    wget -O - "${OLDSERVER}/sailingserver/api/v1/leaderboardgroups/`echo $OLD_LB | sed -e 's/ /%20/g'`" | sed -e 's/\b470W\b/470/g' -e 's/\b470M\b/470/g' -e 's/\<505\>/5O5/g' -e 's/Laser Int\./Laser/g' | python -m json.tool | grep -v timepoint >"${OLD_LB}.old.json"
    wget -O - "${NEWSERVER}/sailingserver/api/v1/leaderboardgroups/`echo $NEW_LB | sed -e 's/ /%20/g'`" | sed -e 's/\b470W\b/470/g' -e 's/\b470M\b/470/g' -e 's/\<505\>/5O5/g' -e 's/Laser Int\./Laser/g' | python -m json.tool | grep -v timepoint >"${NEW_LB}.new.json" 
    diff -b -i -B "${OLD_LB}.old.json" "${NEW_LB}.new.json"
    DIFFRESULT=$?
    if [ "$DIFFRESULT" != "0" ]; then
      echo "Difference detected in leaderboard group $OLD_LB vs. $NEW_LB; exiting"
      exit $DIFFRESULT
    else
      # no diff; remove the leaderboards successfully compared from both leaderboardgroups lists in case a later -c invocation occurs
      sed -i -e '1d' $OLDGROUPS
      sed -i -e '1d' $NEWGROUPS
    fi
    OLD_LB=`head -n 1 $OLDGROUPS`
    NEW_LB=`head -n 1 $NEWGROUPS`
  done
fi