#!/bin/sh

# Copyright (C) 2021 jahoti <jahoti@tilde.team>
# Redistribution terms are gathered in the `copyright' file.

print_usage() {
    EXIT_STATUS=${1:-0}
    if [ "x$1" != x ]; then
	shift
	errcho "$@"
    fi
    
    errcho "usage:  $0 [OPTION]... BROWSER"
    errcho
    errcho "the -- preceding long forms is optional"
    errcho "browsers:"
    errcho "    -C, chromium:     build for Chromium and derivatives"
    errcho "    -M, mozilla:      build for Firefox and derivatives"
    errcho "options:"
    errcho "    -b, build [LOC]:  set file/directory to use for building"
    errcho "    -f, force:        delete the build directory if it exists"
    errcho "                      instead of throwing an error."
    errcho "    -h, help:         print usage information and exit"
    errcho "    -o, output [LOC]: set output file/directory"
    errcho "    -z, zip_ext:      pack the extension as a file"
    errcho "    -7, 7zip:         use the '7z' command instead of 'zip'"
    
    exit $EXIT_STATUS
}

. ./lib_build.sh

BROWSER=''
BUILDDIR=''
MAKEZIP=0
FORCE=0
ZIP_COMMAND='zip -r'

while [ "x$1" != x ]; do
    case "$1" in
	-C | chromium | --chromium) BROWSER=chromium;;
	-M | mozilla | --mozilla)   BROWSER=mozilla;;
	-b | output | --build)      BUILDDIR="$2"
	                            shift;;
	-f | force | --force)       FORCE=1;;
	-h | help | --help)         print_usage;;
	-o | output | --output)     OUTPUT="$2"
	                            shift;;
	-z | zip_ext | --zip_ext)   MAKEZIP=1;;
	-7 | 7zip | --7zip)         ZIP_COMMAND='7z a';;
	*)                          print_usage 2 Unrecognized option "'$1'.";;
    esac
    shift
done

if [ "x$BROWSER" = x ]; then
    print_usage 1 No browser was specified.
fi

BUILDDIR="${BUILDDIR:-build_$BROWSER}"
if [ -e "$BUILDDIR" ]; then
    if [ $FORCE = 0 ]; then
	errcho "Build directory '$BUILDDIR' exists."
	exit 3
    else
	rm -rf "$BUILDDIR"
    fi
fi

if [ "x$OUTPUT" = x ]; then
    case "$MAKEZIP$BROWSER" in
	0*)        OUTPUT=build_$BROWSER;;
	1chromium) OUTPUT=build.crx;;
	1mozilla)  OUTPUT=build.xpi;;
    esac
fi

if [ -e "$OUTPUT" ]; then
    errcho "Output location '$OUTPUT' exists."
    exit 3
fi

mkdir "$BUILDDIR"
main
if [ $MAKEZIP = 1 ]; then
    make_zip
    mv "$BUILDDIR"/build.zip "$OUTPUT"
    rm -rf "$BUILDDIR"
elif [ "$BUILDDIR" != "$OUTPUT" ]; then
    mv "$BUILDDIR" "$OUTPUT"
fi