#!/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 recipename
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typeset -A recipeversion
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CURLOPTS="-s --cacert ${CACRT} -H 'Accept: application/json' -H 'User-Agent: ksh93 recipe processor 0.1' -H 'Authorization: Bearer ${TOKEN}'"
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while sleep 5; do
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# MAIN loop
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# we will later store here modified recipe uids, so we clear it for every run
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updatedrecipes=""
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# get a CookieRecipeList item from the API and store the json in a variable
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respjson=$(eval curl -XGET ${CURLOPTS} "${APIURL}/apis/de.eenfach.olbohlen/v1/namespaces/${NAMESPACE}/cookierecipes?limit=500")
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# check if we got the expected resource:
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kind=$(echo "${respjson}" | jq .kind)
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if [ x${kind} != 'x"CookieRecipeList"' ]; 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 recipes are there?
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numrecipes=$(echo "${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 recipe to figure out if we need to process them
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i=0
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while [ ${i} -lt ${numrecipes} ]; do
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recipeuid=$(echo "${respjson}" | jq -r .items[${i}].metadata.uid)
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recipename[${recipeuid}]=$(echo "${respjson}" | jq -r .items[${i}].metadata.name)
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# check if we already have processed this version of the recipe, if not
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# store the uid of that recipe in the updatedrecipes var
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newversion=$(echo "${respjson}" | jq -r .items[${i}].metadata.resourceVersion)
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if [ "x${newversion}" != "x${recipeversion[${recipeuid}]}" ]; then
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# we have an update!
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updatedrecipes="${updatedrecipes} ${recipeuid}"
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recipeversion[${recipeuid}]="${newversion}"
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fi
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i=$(( ${i} + 1 ))
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done
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# now that we have a list of updated recipes, we are going to process them
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for r in ${updatedrecipes}; do
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printf "\n\nNew recipe found: %s\n" "${recipename[${r}]}"
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printf "--------------------------------------------------------------------------\n\n"
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# get the name for the UID and fetch only that object
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recipe=$(eval curl -XGET ${CURLOPTS} '${APIURL}/apis/de.eenfach.olbohlen/v1/namespaces/${NAMESPACE}/cookierecipes/${recipename[${r}]}' )
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# recipe contains now the json for one recipe, now we parse that
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# we set scale to Fahrenheit if sanescale is false, else scale will use Celsius
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scale_b=$( echo "${recipe}" | jq -r .spec.sanescale )
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if [ "x${sanescale}" == "xfalse" ]; then
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scale=Fahrenheit
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fi
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temperature=$( echo "${recipe}" | jq -r .spec.temperature )
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preheat_b=$( echo "${recipe}" | 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 "${recipe}" | 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 recipe:\n"
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printf "----------------------------------\n"
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i=0
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while [ ${i} -lt ${num_in} ]; do
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in_name=$( echo "${recipe}" | jq -r .spec.ingredients[${i}].name )
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in_amount=$( echo "${recipe}" | jq -r .spec.ingredients[${i}].amount )
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in_unit=$( echo "${recipe}" | jq -r .spec.ingredients[${i}].unit )
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in_remarks=$( echo "${recipe}" | 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\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 "${recipe}" | jq .spec.steps\[\].order | wc -l)
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# now let's iterate over that
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printf "\n\nProcessing the instructions:\n"
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printf "----------------------------\n"
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i=1
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while [ ${i} -le ${num_steps} ]; do
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instruction=$( echo "${recipe}" | jq '.spec.steps[] | select(.order == '${i}') | { instruction } | join (" ")' )
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printf "Step %i/%i: %s..." ${i} ${num_steps} "${instruction}"
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sleep $(( ${RANDOM} % 6 + 1 ))
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printf "done\n\n"
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sleep 1
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i=$(( ${i} + 1 ))
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done
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printf "\nDone with this recipe."
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printf "\n=======================\n\n"
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done
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done
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