#!/bin/bash


for ARG ; do
  case $ARG in
    -s|--silent)
        SILENT=true
        ;;
    *)
	if [ -z "$SCHEMA" ]; then
	  SCHEMA=$ARG
	else
	  echo "Error: '$ARG'. One file only, please."
	fi
	;;
  esac
  shift
done

if [ ! -f "$SCHEMA" ]; then
  echo "Usage: $0 [-s|--silent] <schema_file>" >&2
  exit -1
fi


# if [ -z "$SILENT" ]; then
  echo "# $SCHEMA"
# fi

# Check json syntax
if ! jq . "$SCHEMA" > /dev/null ; then
  exit 1
fi

# Validate conformace do schema.cddl
# to install cddl:
#	sudo gem install cddl
# to install cbor:
#	sudo aptitude install ruby-dev
#	sudo gem install cbor
if ! cddl schema.cddl validate "$SCHEMA" ; then
  exit 2
fi

# Validate 'type' fields of the schema (generate instance if possible)
if [ $(jq 'has("datamodel")' "$SCHEMA") == "true" ]; then
  readarray -t NAMES < <(jq -r '.datamodel | keys_unsorted | .[] | @text' "$SCHEMA")
fi

for (( i=0; i < ${#NAMES[*]}; i++ )) ; do
  if [ -z "$SILENT" ]; then
    echo "- ${NAMES[i]}"
  fi
  jq -r ".datamodel | .[\"${NAMES[i]}\"] | .type | @text" "$SCHEMA" > "/tmp/${NAMES[i]}.cddl"
  if [ -z "$SILENT" ]; then
    cddl "/tmp/${NAMES[i]}.cddl" generate
  else
    cddl "/tmp/${NAMES[i]}.cddl" generate >/dev/null
  fi
  rm -f "/tmp/${NAMES[i]}.cddl"
done