name: Reusable workflow to run trivy scan

on:
  workflow_call:
    inputs:
      image-name:
        required: true
        type: string
      image-tag:
        required: false
        type: string
      tag-suffix:
        required: true
        type: string
      dockerfile:
        required: true
        type: string
      ref:
        required: false
        default: main
        type: string
      build-args:
        required: true
        type: string
      build-arch:
        required: true
        type: string
      build-platform:
        required: true
        type: string
    secrets:
      GHCR_USERNAME:
        required: true
      GHCR_TOKEN:
        required: true

env:
  IMAGE_NAME: ${{ inputs.image-name }}
  TAG_SUFFIX: ${{ inputs.tag-suffix }}
  ARCH: ${{ inputs.build-arch }}
  DOCKERFILE: ${{ inputs.dockerfile }}
  IS_FORK: ${{ secrets.GHCR_USERNAME == '' && 'true' || 'false' }}

jobs:
  build-publish:
    name: Build and Publish
    runs-on: ubuntu-latest
    outputs:
      image-tag: ${{ steps.container_info.outputs.image-tag }}
    steps:

      - name: Checkout
        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
        with:
          ref: ${{ inputs.ref }}

      - name: Setup QEMU
        uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
        with:
          platforms: all

      - name: Setup Docker Buildx
        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
        with:
          version: 'v0.4.2'
          install: true

      - name: Setup Go
        uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
        id: setup-go
        with:
          go-version-file: "go.mod"

      - name: Download Go modules
        if: ${{ steps.setup-go.outputs.cache-hit != 'true' }}
        run: go mod download

      - name: Fetch History
        shell: bash
        run: git fetch --prune --unshallow

      - name: Login to Docker
        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
        if: env.IS_FORK == 'false'
        with:
          registry: ghcr.io
          username: ${{ secrets.GHCR_USERNAME }}
          password: ${{ secrets.GHCR_TOKEN }}

      - name: Get docker image tag
        id: container_info
        shell: bash
        env:
          GITHUB_REF: ${{ github.ref }}
        run: |
          # rebuild-image
          if [ "${{ inputs.image-tag }}" != "" ]; then
            TAG="${{ inputs.image-tag }}${{ inputs.tag-suffix }}"
          # main / release-x.y
          elif [[ "$GITHUB_REF" == "refs/heads/main" || "$GITHUB_REF" =~ refs/heads/release-.*  ]]; then
            TAG=${GITHUB_REF#refs/heads/}${{ inputs.tag-suffix }}
          # Pull Request
          else
            TAG=$(make docker.tag)
          fi
          echo "image-tag=${TAG}" >> $GITHUB_OUTPUT

      - name: Build & Publish Artifacts
        if: env.IS_FORK == 'false'
        shell: bash
        env:
          IMAGE_TAG: ${{ steps.container_info.outputs.image-tag }}
          BUILD_ARGS: ${{ inputs.build-args }}
          DOCKER_BUILD_ARGS: >-
            --push
            --platform ${{ inputs.build-platform }}
        run: make docker.build

      - name: Build & Publish Artifacts fork
        if: env.IS_FORK == 'true'
        shell: bash
        env:
          IMAGE_TAG: ${{ steps.container_info.outputs.image-tag }}
          BUILD_ARGS: ${{ inputs.build-args }}
          DOCKER_BUILD_ARGS: --load
        run: make docker.build

      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@84384bd6e777ef152729993b8145ea352e9dd3ef # master
        with:
          image-ref: ${{ inputs.image-name }}:${{ steps.container_info.outputs.image-tag }}
          format: 'table'
          exit-code: '1'
          ignore-unfixed: true
          vuln-type: 'os,library'
          severity: 'CRITICAL,HIGH'

  sign:
    runs-on: ubuntu-latest
    needs: build-publish
    steps:
      - name: Checkout
        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      - name: Sign image
        if: env.IS_FORK == 'false'
        uses: ./.github/actions/sign
        with:
          image-name: ${{ inputs.image-name }}
          image-tag: ${{ needs.build-publish.outputs.image-tag }}
          GHCR_USERNAME: ${{ secrets.GHCR_USERNAME }}
          GHCR_TOKEN: ${{ secrets.GHCR_TOKEN }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}