---
# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
name: "Schemas"

on:
  workflow_dispatch:
  schedule:
    - cron: "0 0 * * *" # Every day at midnight
  push:
    branches: ["main"]
    paths: [".forgejo/workflows/schemas.yaml"]

jobs:
  publish:
    name: Schemas
    runs-on: ["docker-x86_64"]
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout
        uses: https://github.com/actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Setup Workflow Tools
        shell: bash
        run: |
          curl -LO "https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl"
          chmod +x kubectl
          mv kubectl /usr/local/bin/

          curl -LO "https://dl.min.io/client/mc/release/linux-amd64/mc"
          chmod +x mc
          mv mc /usr/local/bin/

      - name: Setup Python
        run: |
          apt-get update
          apt-get install -y python3 python3-pip python3-yaml
          pip3 install --upgrade pip

      - name: Write kubeconfig
        id: kubeconfig
        uses: https://github.com/timheuer/base64-to-file@v1
        with:
          encodedString: "${{ secrets.KUBECONFIG }}"
          fileName: kubeconfig
          fileDir: $GITHUB_WORKSPACE

      - name: Write mc
        id: mcconfig
        uses: https://github.com/timheuer/base64-to-file@v1
        with:
          encodedString: "${{ secrets.MCCONFIG }}"
          fileName: config.json
          fileDir: $GITHUB_WORKSPACE

      - name: Extracting CRDs to yaml and converting to JSON schema
        env:
          KUBECONFIG: "${{ steps.kubeconfig.outputs.filePath }}"
        run: |
          # Create temp folder for CRDs
          TMP_CRD_DIR=$(mktemp -d)
          echo "Temp directory: $TMP_CRD_DIR"

          # Create final schemas directory
          SCHEMAS_DIR=$GITHUB_WORKSPACE/crdSchemas
          mkdir -p $SCHEMAS_DIR
          echo "Schemas directory: $SCHEMAS_DIR"

          # Create array to store CRD kinds and groups
          ORGANIZE_BY_GROUP=true
          declare -A CRD_GROUPS 2>/dev/null
          if [ $? -ne 0 ]; then
              # Array creation failed, signal to skip organization by group
              ORGANIZE_BY_GROUP=false
          fi
          # Extract CRDs from cluster
          NUM_OF_CRDS=0
          while read -r crd
          do
              filename=${crd%% *}
              kubectl get crds "$filename" -o yaml > "$TMP_CRD_DIR/$filename.yaml" 2>&1
              echo "Extracted CRD: $filename"

              resourceKind=$(grep "kind:" "$TMP_CRD_DIR/$filename.yaml" | awk 'NR==2{print $2}' | tr '[:upper:]' '[:lower:]')
              resourceGroup=$(grep "group:" "$TMP_CRD_DIR/$filename.yaml" | awk 'NR==1{print $2}')

              # Save name and group for later directory organization
              CRD_GROUPS["$resourceKind"]="$resourceGroup"

              let ++NUM_OF_CRDS
          done < <(kubectl get crds 2>&1 | sed -n '/NAME/,$p' | tail -n +2)
          echo numCRDs: $NUM_OF_CRDS

          cd $SCHEMAS_DIR
          # Download converter script
          curl https://raw.githubusercontent.com/yannh/kubeconform/master/scripts/openapi2jsonschema.py --output $TMP_CRD_DIR/openapi2jsonschema.py 2>/dev/null

          # Convert crds to jsonSchema
          python3 $TMP_CRD_DIR/openapi2jsonschema.py $TMP_CRD_DIR/*.yaml
          conversionResult=$?

          # Copy and rename files to support kubeval
          rm -rf $SCHEMAS_DIR/master-standalone
          mkdir -p $SCHEMAS_DIR/master-standalone
          cp $SCHEMAS_DIR/*.json $SCHEMAS_DIR/master-standalone
          find $SCHEMAS_DIR/master-standalone -name '*json' -exec bash -c ' mv -f $0 ${0/\_/-stable-}' {} \;

          # Organize schemas by group
          if [ $ORGANIZE_BY_GROUP == true ]; then
              for schema in $SCHEMAS_DIR/*.json
              do
              crdFileName=$(basename $schema .json)
              crdKind=${crdFileName%%_*}
              crdGroup=${CRD_GROUPS[$crdKind]}
              mkdir -p $crdGroup
              mv $schema ./$crdGroup
              done
          fi

          CYAN='\033[0;36m'
          GREEN='\033[0;32m'
          NC='\033[0m' # No Color

          if [ $conversionResult == 0 ]; then
              printf "${GREEN}Successfully converted $NUM_OF_CRDS CRDs to JSON schema${NC}\n"

              printf "\nTo validate a CR using various tools, run the relevant command:\n"
              printf "\n- ${CYAN}datree:${NC}\n\$ datree test /path/to/file\n"
              printf "\n- ${CYAN}kubeconform:${NC}\n\$ kubeconform -summary -output json -schema-location default -schema-location '$SCHEMAS_DIR/{{ .ResourceKind }}_{{ .ResourceAPIVersion }}.json' /path/to/file\n"
              printf "\n- ${CYAN}kubeval:${NC}\n\$ kubeval --additional-schema-locations file:\"$SCHEMAS_DIR\" /path/to/file\n\n"
          fi

          rm -rf $TMP_CRD_DIR

      - name: Deploy to Cloudflare R2
        env:
          MC_CONFIG_DIR: $GITHUB_WORKSPACE
        shell: bash
        run: |
          mc cp --recursive $SCHEMAS_DIR r2-ks/kubernetes-schemas