name: 'Auto Deploy Status'
description: 'Reads current deployment status from app server'
inputs:
  ssh_key:
    description: 'SSH Private Key'
    required: true
  host:
    description: 'Remote App Host'
    required: true
  port:
    description: 'Remote SSH Port'
    required: true
  user:
    description: 'Remote User'
    required: true
  app_key:
    description: 'Application Key'
    required: true
  auto_deploy_path:
    description: 'Path to auto-deploy repo on remote'
    required: true
outputs:
  app_upstream_host:
    description: 'Upstream Host or IP'
    value: ${{ steps.get_status.outputs.app_upstream_host }}
  pending_port:
    description: 'Pending Port'
    value: ${{ steps.get_status.outputs.pending_port }}
  pending_color:
    description: 'Pending Color'
    value: ${{ steps.get_status.outputs.pending_color }}
runs:
  using: 'composite'
  steps:
    - name: SSH Deploy Status
      id: get_status
      shell: bash
      env:
        SSH_KEY: ${{ inputs.ssh_key }}
        DEPLOY_HOST: ${{ inputs.host }}
        DEPLOY_PORT: ${{ inputs.port }}
        DEPLOY_USER: ${{ inputs.user }}
        APP_KEY: ${{ inputs.app_key }}
        AUTO_DEPLOY_PATH: ${{ inputs.auto_deploy_path }}
      run: |
        set -eu
        
        SSH_TMP_DIR="$(mktemp -d)"
        trap 'rm -rf "$SSH_TMP_DIR"' EXIT
        
        echo "$SSH_KEY" > "$SSH_TMP_DIR/id_rsa"
        chmod 600 "$SSH_TMP_DIR/id_rsa"
        ssh-keyscan -p "$DEPLOY_PORT" "$DEPLOY_HOST" > "$SSH_TMP_DIR/known_hosts"
        
        SSH_OPTS=(
          -i "$SSH_TMP_DIR/id_rsa"
          -o UserKnownHostsFile="$SSH_TMP_DIR/known_hosts"
          -o StrictHostKeyChecking=yes
          -p "$DEPLOY_PORT"
        )
        
        STATUS_OUTPUT="$(ssh "${SSH_OPTS[@]}" "$DEPLOY_USER@$DEPLOY_HOST" "cd $(printf '%q' "$AUTO_DEPLOY_PATH") && ./common/deploy.sh status $(printf '%q' "$APP_KEY") --format env")"
        printf '%s\n' "$STATUS_OUTPUT"
        
        APP_UPSTREAM_HOST="$(printf '%s\n' "$STATUS_OUTPUT" | sed -n 's/^APP_UPSTREAM_HOST=//p')"
        PENDING_PORT="$(printf '%s\n' "$STATUS_OUTPUT" | sed -n 's/^PENDING_PORT=//p')"
        PENDING_COLOR="$(printf '%s\n' "$STATUS_OUTPUT" | sed -n 's/^PENDING_COLOR=//p')"
        
        test -n "$APP_UPSTREAM_HOST"
        test -n "$PENDING_PORT"
        test -n "$PENDING_COLOR"
        
        echo "app_upstream_host=$APP_UPSTREAM_HOST" >> "$GITHUB_OUTPUT"
        echo "pending_port=$PENDING_PORT" >> "$GITHUB_OUTPUT"
        echo "pending_color=$PENDING_COLOR" >> "$GITHUB_OUTPUT"