#!/bin/bash
######
# Generates dockerfiles
# It expects docker to be logged in to ECR (see aws-login)

set -e

VERBOSE=0

DIR=`dirname $(realpath "${BASH_SOURCE[0]}")`
OLDDIR=`pwd`
cd "$DIR"

source "$DIR/../config"
source "$DIR/libs.sh"

usage() {
    echo "Usage: $0 [-h] [-v] [-dub] [-i: input, default] -o: output " 1>&2; 
    echo "This script builds framework docker images, the following options are available:" 1>&2; 
    echo "  -h: This message" 1>&2; 
    echo "  Environment" 1>&2; 
    echo "     -d: Debug" 1>&2; 
    echo "     -u: Unit" 1>&2; 
    echo "     -b: Base" 1>&2; 
    echo "  -I: Image (webserver or worker)" 1>&2; 
    echo "  -i: Config Input File" 1>&2; 
    echo "  -o: Output file" 1>&2; 
    echo "  -v: Verbose" 1>&2; 
    exit 1;
}

OUTFILE=""
CFGFILE="../config"

SELECTED_MODES=0
DEBUG_MODE=0
UNIT_MODE=0
BASE_MODE=0

TYPE="webserver"

while getopts "i:o:I:hvdub" o; do
    case "${o}" in
        I) 
            TYPE="${OPTARG}"
            ;;
        d)
            DEBUG_MODE=1
            SELECTED_MODES+=1
            ;;
        u)
            UNIT_MODE=1
            SELECTED_MODES+=1
            ;;
        b)
            BASE_MODE=1
            SELECTED_MODES+=1
            ;;
        i)
            if [[  "$OPTARG" != "${OPTARG#/}" ]]; then
                CFGFILE="${OPTARG}"
            else 
                CFGFILE="${OLDDIR}/${OPTARG}"
            fi
            ;;
        o)
            if [[  "$OPTARG" != "${OPTARG#/}" ]]; then
                OUTFILE="${OPTARG}"
            else 
                OUTFILE="${OLDDIR}/${OPTARG}"
            fi
            ;;
        v) 
            VERBOSE=1
            ;;
        h) 
            usage
            ;;
		*)
            printerr "Unsupported option ${o}"
			usage
			;;
    esac
done


if [[ $SELECTED_MODES -ne 1 ]]; then 
    printerr "Invalid mode"
    usage
fi

if [[ $OUTFILE == "" ]]; then 
    printerr "Missing outfile"
    usage
fi

STARTING_FILE="../cicd/dockerfiles/${TYPE}/build.dockerfile"
if [[ $DEBUG_MODE -eq 1 ]]; then
    STARTING_FILE="../cicd/dockerfiles/${TYPE}/debug.dockerfile"
fi
if [[ $UNIT_MODE -eq 1 ]]; then
    STARTING_FILE="../cicd/dockerfiles/${TYPE}/test.dockerfile"
fi
msg "Using source file $STARTING_FILE"

buildTemplate -f "$CFGFILE" -t "$STARTING_FILE" -o "$OUTFILE"