#!/bin/sh
# Migration 19 --> 20

set -euo pipefail

kubectl get helmreleases.helm.toolkit.fluxcd.io -A \
  --field-selector=metadata.name=seaweedfs -o json | jq -r '
  .items[] as $o
  | ($o.metadata.namespace // "") as $ns
  | $o.metadata.name as $name
  | $o.spec as $s
  | $o.spec.values as $v

  | (
      ($s.chart.spec.version? // "") != "0.7.0"
      or ($v.size? != null)
      or ($v.storageClass? != null)
      or ($v.replicas? != null)
      or ($v.zones? != null)
    ) as $needsChange
  | select($needsChange)

  # JSON Patch
  | [
      (if $s.chart.spec.version? then
         {op:"replace", path:"/spec/chart/spec/version", value:"0.7.0"}
       else
         {op:"add",     path:"/spec/chart/spec/version", value:"0.7.0"}
       end),

      (if ($v|type) != "object" then {op:"add", path:"/spec/values", value:{}} else empty end),

      (if ($v.volume?|type) != "object" then {op:"add", path:"/spec/values/volume", value:{}} else empty end),

      (if $v.size?          then {op:"add", path:"/spec/values/volume/size",         value:$v.size}          else empty end),
      (if $v.storageClass?  then {op:"add", path:"/spec/values/volume/storageClass", value:$v.storageClass}  else empty end),
      (if $v.replicas?      then {op:"add", path:"/spec/values/volume/replicas",     value:$v.replicas}      else empty end),
      (if $v.zones?         then {op:"add", path:"/spec/values/volume/zones",        value:$v.zones}         else empty end),

      (if $v.size?          then {op:"remove", path:"/spec/values/size"}          else empty end),
      (if $v.storageClass?  then {op:"remove", path:"/spec/values/storageClass"}  else empty end),
      (if $v.replicas?      then {op:"remove", path:"/spec/values/replicas"}      else empty end),
      (if $v.zones?         then {op:"remove", path:"/spec/values/zones"}         else empty end)
    ] as $patch

  | "kubectl " +
    (if $ns != "" then "-n \($ns) " else "" end) +
    "patch helmreleases.helm.toolkit.fluxcd.io \($name) --type=json -p '\''\($patch|tojson)'\''"
' | sh -ex

# Stamp version
kubectl create configmap -n cozy-system cozystack-version \
  --from-literal=version=20 --dry-run=client -o yaml | kubectl apply -f-