name: 'Push a docker image to a registry server'
description: 'Push a docker image to a registry server using podman, docker, or skopeo'
author: 'Eric Coissac'

inputs:
  image_name:
    description: 'name of the image'
    required: true
  image_tags:
    description: 'tags added to the image'
    required: true
  registry_login:
    description: "Is the action must take care to log to the registry"
    required: false
    default: false
    type: boolean
  registry_user:
    description: 'User used for the connection to the image registry'
    required: false
    default: ${{ secrets.PMO_REGISTRY_USER }}
  registry_password:
    description: 'Password used for the connection to the image registry'
    required: false
    default: ${{ secrets.PMO_REGISTRY_PASSWORD }}
  registry_server:
    description: 'Address of the image registry server'
    required: false
    default: "niepce.petite-maison-orange.fr"
  push_command:
    description: 'Command used to push the image (docker|podman|skopeo)'
    required: false
    default: skopeo
  debug:
    description: 'Run the action in debug mode'
    required: false
    default: false
    type: boolean


runs:
  using: 'composite'
  steps:
    - 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" >> $GITEA_ENV
        debug Debug switch on

    - name: Debug registry_login
      shell: bash
      run: |
        source "${{ github.action_path }}/../bashlib.sh"
        debug "Registry login is set to -${{ inputs.registry_login }}-"


    - name: Log into the registry
      if: inputs.registry_login == 'true'
      uses: https://gargoton.petite-maison-orange.fr/pmo-actions/registry-login@main
      with:
        registry_command: ${{ inputs.push_command }}
        registry_server: ${{ inputs.registry_server }}
        registry_user: ${{ inputs.registry_user }}
        registry_password: ${{ inputs.registry_password }}
        debug: ${{ inputs.debug }}

    - name: install skopeo
      if: inputs.push_command == 'skopeo' 
      shell: bash
      run: |
        source "${{ github.action_path }}/../bashlib.sh"
        step "Install software" "skopeo"

        if command -v skopeo >/dev/null 2>&1; then
          success "Already installed" "Skopeo found"
          exit 0
        fi

        check_command apt-get 

        apt-get update

        if apt-get -y install skopeo ; then
            success "Success" "Skopeo installed"
        else
            error "Install failed" "Could not install Skopeo"
        fi

    - name: install podman
      if: inputs.push_command == 'podman' 
      shell: bash
      run: |
        source "${{ github.action_path }}/../bashlib.sh"
        step "Install software" "podman"

        if command -v podman >/dev/null 2>&1; then
          success "Already installed" "Podman found"
          exit 0
        fi

        check_command apt-get 

        apt-get update

        if apt-get -y install podman ; then
            success "Success" "Podman installed"
        else
            error "Install failed" "Could not install Podman"
        fi

    - name: Push the images to the serveur
      shell: bash
      run: |
        source "${{ github.action_path }}/../bashlib.sh"

        check_command ${{ inputs.push_command }}

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

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

        step "Start pushing" "${{ inputs.image_name }}"

        for tag in "${tags[@]}" ; do
          if [[ "${{ inputs.push_command }}" == "skopeo" ]] ; then
            # Pour skopeo, on utilise 'copy' avec docker-daemon: comme source
            source_image="docker-daemon:${{ inputs.registry_server }}/${{ inputs.image_name }}:${tag}"
            dest_image="docker://${{ inputs.registry_server }}/${{ inputs.image_name }}:${tag}"
            
            if skopeo copy "${source_image}" "${dest_image}" ; then
              success "Image pushing" "${{ inputs.image_name }}:${tag}" 
            else
              error "Failed" "pushing of image ${{ inputs.image_name }}:${tag}"
            fi
          else
            # Pour podman ou docker, on utilise la syntaxe classique 'push'
            if ${{ inputs.push_command }} push ${{ inputs.registry_server }}/${{ inputs.image_name }}:${tag} ; then
              success "Image pushing" "${{ inputs.image_name }}:${tag}" 
            else
              error "Failed" "pushing of image ${{ inputs.image_name }}:${tag}"
            fi
          fi
        done