#!/bin/bash


############################
# INPUTS
############################

echo "------- INPUTS -------"
SCRIPT=$0
AD_DEBUG=$1     # <-- First parameter initiates DEBUG build instead of the default RELEASE.
CPU_COUNT=$2 # TODO
AD=""

# Parse the arguments given to this script:
#for i # <- for each  argument, terminate if no more arguments, see below
while :
do
    echo $1 #use $i
    # Note: Empty space is the delimiter! => $1 is first, after space is $2.
    case $1 in
        -h | --help | -\?)
            #TODO create help function to call.
            exit 0      	# This is not an error, User asked for help. Don't "exit 1"
            ;;
        --prefix)
            AD=$2
	    shift 2
            ;;
	--prefix=*)
            AD=${1#*=}        # Deletes everything before first occurrence of = (inclusively).
            shift
	    ;;
        -f | --file)
            AD=$2     	# TODO check if file exists and is what is expected.
            shift 2
            ;;
        --file=*)
            AD=${1#*=}        # Delete everything up till "="
            shift
            ;;

	--debug)
            AD_DEBUG=true
            shift
            ;;

        -v | --verbose)
            # Each instance of -v adds 1 to verbosity
            verbose=$((verbose+1))
            shift
            ;;
        --) # End of all options
            shift
            break
            ;;
        -*)
            printf >&2 'WARN: Unknown option (ignored): %s\n' "$1"
            shift
            ;;

        *)  # no more options. Stop while loop. #<-- Note: This must be the last check condition as it matches always.
            break
            ;;
    esac
done



# Is a path to 0ad repository defined? Define a custom path via running  'AD=/path/into/0ad-repo/ && build0ad_on_linux.sh'
if [ "$AD" ] ; then
  AD="$AD"
else
  AD=$HOME"/0ad"   	# TODO automatically look for a 0ad installation / repository. This might be dangerous if recompiling the wrong repo if more than one exists.
fi

echo "Using 0AD repository location: ""$AD"





echo "------- INPUT -END -------"






echo "------- CHECKS -------"
############################
# CHECK 
############################
if [ ! "$AD" ]; then
  printf >&2 "ERROR: option '--prefix /path/into/0ad-repo' not given.\n"
  exit 1
fi


echo "------- CHECKS -END -------"








echo "------- BUILD IGNITION -------"
############################
# INITIATE THE 0AD BUILD
############################
echo "Updating workspace: ""$AD""/build/workspaces"
cd "$AD/build/workspaces" && ./update-workspaces.sh -j2    # 2 = 1 + 1 = 1 + #CPU-Cores    <-- 1 might take longer, but it's ensured this will exist, so it's safer.
cd gcc
echo "Initiating 0AD build ... "$AD_DEBUG
if [ "$AD_DEBUG" ] ; then
    echo "(debug configuration)"
    make config=debug -j2    # (see above comment)
else
   make -j2
fi

# The Release mode builds (which are the default) are more optimised, but are harder to debug. Use
#make config=debug
# (and run pyrogenesis_dbg) if you need better debugging support.

echo "------- BUILD IGNITION -END -------"
echo "If there were errors, seek help in the wildfiregames forums. http://www.wildfiregames.com/forum/"
echo "Otherwise THE COUNCIL OF MODDERS WISHES HAPPY MODDING. Please contribute improvements back to 0AD. That's the foundation of Open source."