#!/usr/bin/ksh
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# by Olaf Bohlen <olbohlen@eenfach.de>
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# licensed under BSD3 license
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APIURL="https://${KUBERNETES_SERVICE_HOST}:${KUBERNETES_SERVICE_PORT_HTTPS}"
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NAMESPACE=$(</run/secrets/kubernetes.io/serviceaccount/namespace)
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TOKEN=$(</run/secrets/kubernetes.io/serviceaccount/token)
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CACRT="/run/secrets/kubernetes.io/serviceaccount/ca.crt"
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# some associate arrays we need
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typeset -A receiptname
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typeset -A receiptversion
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CURLOPTS="-s --cacert ${CACRT} -H 'Accept: application/json' -H 'User-Agent: ksh93 receipt processor 0.1' -H 'Authorization: Bearer ${TOKEN}'"
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while sleep 5; do
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# MAIN loop
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# we will later store here modified receipt uids, so we clear it for every run
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updatedreceipts=""
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# get a CookieReceiptList item from the API and store the json in a variable
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respjson=$(eval curl -XGET ${CURLOPTS} "${APIURL}/apis/de.eenfach.olbohlen/v1/namespaces/${NAMESPACE}/cookiereceipts?limit=500")
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# check if we got the expected resource:
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kind=$(echo "${respjson}" | jq .kind)
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if [ x${kind} != 'x"CookieReceiptList"' ]; then
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printf "Error: unexpected Result from API\n"
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break ## jump out of this loop iteration
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fi
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# how many receipts are there?
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numreceipts=$(echo "${respjson}" | jq .items\[\].metadata.name | wc -l)
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# populate the in memory arrays with json metadata, we need
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# - the name
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# - the uid
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# - the resourceVersion
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# for every receipt to figure out if we need to process them
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i=0
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while [ ${i} -lt ${numreceipts} ]; do
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receiptuid=$(echo "${respjson}" | jq -r .items[${i}].metadata.uid)
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receiptname[${receiptuid}]=$(echo "${respjson}" | jq -r .items[${i}].metadata.name)
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# check if we already have processed this version of the receipt, if not
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# store the uid of that receipt in the updatedreceipts var
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newversion=$(echo "${respjson}" | jq -r .items[${i}].metadata.resourceVersion)
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if [ "x${newversion}" != "x${receiptversion[${receiptuid}]}" ]; then
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# we have an update!
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updatedreceipts="${updatedreceipts} ${receiptuid}"
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receiptversion[${receiptuid}]="${newversion}"
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fi
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i=$(( ${i} + 1 ))
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done
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# now that we have a list of updated receipts, we are going to process them
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for r in ${updatedreceipts}; do
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printf "\n\nNew receipt found: %s\n" "${receiptname[${r}]}"
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# get the name for the UID and fetch only that object
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receipt=$(eval curl -XGET ${CURLOPTS} '${APIURL}/apis/de.eenfach.olbohlen/v1/namespaces/${NAMESPACE}/cookiereceipts/${receiptname[${r}]}' )
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# receipt contains now the json for one receipt, now we parse that
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# we set scale to Fahrenheit if sanescale is false, else scale will use Celsius
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scale_b=$( echo "${receipt}" | jq -r .spec.sanescale )
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if [ "x${sanescale}" == "xfalse" ]; then
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scale=Fahrenheit
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fi
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temperature=$( echo ${receipt} | jq -r .spec.temperature )
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preheat_b=$( echo "${receipt}" | jq -r .spec.preheat )
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if [ "x${preheat_b}" == "xtrue" ]; then
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printf "Pre: we heat up the oven to %s degrees %s\n\n" "${temperature}" "${scale:-Celsius}"
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fi
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# how many ingredients do we have?
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num_in=$(echo "${receipt}" | jq .spec.ingredients\[\].name | wc -l)
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# list up that we fetch needed ingredients
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printf "Fetching ingredients from receipt:\n"
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i=0
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while [ ${i} -lt ${num_in} ]; do
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in_name=$( echo "${receipt}" | jq -r .spec.ingredients[${i}].name )
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in_amount=$( echo "${receipt}" | jq -r .spec.ingredients[${i}].amount )
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in_unit=$( echo "${receipt}" | jq -r .spec.ingredients[${i}].unit )
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in_remarks=$( echo "${receipt}" | jq -r .spec.ingredients[${i}].remarks )
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printf "Fetching %s%s of %s" "${in_amount}" "${in_unit}" "${in_name}"
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if [ "x${in_remarks}" != "xnull" ]; then
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printf " (%s)" "${in_remarks}"
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fi
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printf "\n"
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sleep 1
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i=$(( ${i} + 1 ))
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done
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# now we need to (unfortunately just!) simulate the processing
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# the order of the steps is important, but lists are not ordered, so we have
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# an "order" attribute in each list item, and we select on that.
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# first again, we need the amount of instructions...
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num_steps=$(echo "${receipt}" | jq .spec.steps\[\].order | wc -l)
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# now let's iterate over that
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printf "Processing the instructions:\n"
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i=1
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while [ ${i} -lt ${num_steps} ]; do
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instruction=$( echo "${receipt}" | jq '.spec.steps[] | select(.order == '${i}') | { instruction | join (" ")' )
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printf "Step %i/%i: %s..." ${i} ${num_steps} "${instruction}"
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sleep $(( ${RANDOM} % 6 + 1 ))
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printf "done\n"
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sleep 1
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i=$(( ${i} + 1 ))
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done
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printf "Done with this receipt.\n\n"
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done
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done
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