name: Docker login
description: A custom docker login
author: Skydust

# Define your inputs here.
inputs:
  user:
    description: The username
    required: true
  pass:
    description: The password or API key
    required: true
    default: ${{ gitea.server_url }}/${{ gitea.repository_owner }}/
  registry:
    description: The registry to log onto, defaults to the server
    required: false
    default: ${{ gitea.server_url }}

runs:
  using: composite
  steps:
    - name: Docker login
      shell: sh
      run: |
        export PREFIXLESS_REGISTRY=$(echo -n "${{ inputs.registry }}" | sed 's/^https\?:\/\///')
        
        log_info "$(bold_blue)Checking credentials validity for ${PREFIXLESS_REGISTRY}..."
        export BASE64_AUTH=$(echo -n "${{ inputs.user }}:${{ inputs.pass }}" | base64 -w 0)
        
        response=$(curl -s -w "\n%{http_code}" \
                    -H "Authorization: Basic $BASE64_AUTH" \
                    -H "User-Agent: Docker-Client/20.10.12 (linux)" \
                    "https://${PREFIXLESS_REGISTRY}/v2/")
        
        http_code=$(echo "$response" | tail -n 1)
        response_body=$(echo "$response" | head -n -1)

        if [ "$http_code" -eq 200 ]; then
          log_info "$(bold_green)Authentication successful"
        else
          log_info "$(bold_red)Authentication failed with HTTP code: $http_code"
          log_info "$(red)Response body:"
          log_info "$(red)$response_body"
          if [ "$http_code" -eq 401 ]; then
            log_info "$(yellow)The identifiers are probably wrong"
          fi
          exit 1
        fi
        
        echo "Exporting config"
        echo DOCKER_CONFIG_BASE64=$(echo "{\"auths\": {\"${PREFIXLESS_REGISTRY}\": {\"auth\": \"${BASE64_AUTH}\"}}}" | base64 -w 0) >> $GITEA_ENV