name: 'Build a docker image and tag it'
description: 'Build a docker image and tag it using podman or docker'
author: 'Eric Coissac'

inputs:
  image_name:
    description: 'name of the image'
    required: true
  image_tags:
    description: 'tags added to the image'
    required: true
  registry_server:
    description: 'Address of the image registry server'
    required: false
    default: "niepce.petite-maison-orange.fr"
  build_command:
    description: 'Command used to build the image (docker|podman)'
    required: false
    default: docker
  no_cache:
    description: 'Do we desactivate cache during image duilding'
    required: false
    default: false
  tag_command:
    description: 'Command used to tag the image (docker|podman)'
    required: false
    default: podman
  debug:
    description: 'Run the action in debug mode'
    required: false
    default: false
    type: boolean

runs:
  using: 'composite'

  steps:
    - name: Setup cache
      uses: actions/cache@v3
      with:
        path: ~/.npm
        key: dont-cache-${{ github.run_id }}
    - name: Load bash library
      uses: https://gargoton.petite-maison-orange.fr/pmo-actions/bash-library@main
      
    - name: Set debug mode
      if: inputs.debug == 'true'
      shell: bash
      run: |
        source "${{ github.action_path }}/../bashlib.sh"
        export DEBUG="ON"
        echo "DEBUG=ON" >> $GITHUB_ENV
        debug Debug switch on

    - name: Tash description
      shell: bash
      run: |
        source "${{ github.action_path }}/../bashlib.sh"
        step "Image name" "${{ inputs.image_name }}"
        step "Image tags" "${{ inputs.image_tags }}"
         
    - name: Build the image
      shell: bash
      run: |
        source "${{ github.action_path }}/../bashlib.sh"

        check_command ${{ inputs.build_command }}

        IFS=' ' read -r -a tags <<< "${{ inputs.image_tags }}"
        debug "Tags parsed: ${tags[*]}"

        sep=""
        if [[ -n "${tags[0]}" ]] ; then
             sep=":"
          fi

        step "Start building" "${{ inputs.image_name }}${sep}${tags[0]}"

        image="${{ inputs.registry_server }}/${{ inputs.image_name }}${sep}${tags[0]}"

        if [[ ${{ input.no_cache }} == "true" ]] ; then
           nocache="--pull --no-cache"
        else
           nocache=""
        fi

        if ${{ inputs.build_command }} build ${nocache} -t ${image} . ; then
          success "Image build" "${{ inputs.image_name }}"
        else
          error "Failed" "Cannot built the image ${{ inputs.image_name }}" 
        fi 

    - name: tag images
      shell: bash
      run: |
        source "${{ github.action_path }}/../bashlib.sh"
        
        check_command ${{ inputs.tag_command }}

        IFS=' ' read -r -a tags <<< "${{ inputs.image_tags }}"
       
        sep=""
        if [[ -n "${tags[0]}" ]] ; then
             sep=":"
        fi

        step "Start tagging" "${{ inputs.image_name }}${sep}${tags[0]}"

        image=${{ inputs.registry_server }}/${{ inputs.image_name }}${sep}${tags[0]}

        if [[ "${{ inputs.build_command }}" != "${{ inputs.tag_command }}" ]] ; then
          step "Transfer image" "From ${{ inputs.build_command }} to ${{ inputs.tag_command }}"
          if  ${{ inputs.build_command }} save ${image} -o $$.image.tar \
              && ${{ inputs.tag_command }} load -i $$.image.tar 
          then
            success "Success" "Image transfer from ${{ inputs.build_command }} to ${{ inputs.tag_command }}"
          else
            error "Transfert failed" "for image ${image} from ${{ inputs.build_command }} to ${{ inputs.tag_command }}"
          fi
          rm -f $$.image.tar 
        fi

        for tag in "${tags[@]:1}" ; do
          if ${{ inputs.tag_command }} tag ${image} \
                        ${{ inputs.registry_server }}/${{ inputs.image_name }}:${tag} 
          then
              success "Image tagging" "${{ inputs.registry_server }}/${{ inputs.image_name }}:${tag}"
          else
              error "Failed" "tagging of image ${{ inputs.image_name }}:${tag}"
          fi
        done