name: Verifier releaser

on:
  # For manual tests.
  workflow_dispatch:
  push:
    tags:
      - "*" # triggers only if push new tag version, like `0.8.4`.
  # Run daily as a dry-run/test.
  schedule:
    - cron: "0 1 * * *"

permissions: read-all

env:
  GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
  ISSUE_REPOSITORY: slsa-framework/slsa-verifier
  # In case daily runs fail, the label for filing the issue
  HEADER: release

jobs:
  # Generate ldflags dynamically.
  args:
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.ldflags.outputs.version }}
    steps:
      - id: checkout
        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
        with:
          fetch-depth: 0
      - id: ldflags
        run: |
          echo "version=$(git describe --tags --always --dirty | cut -c2-)" >> "$GITHUB_OUTPUT"

  builder:
    name: builder-${{matrix.os}}-${{matrix.arch}}
    needs: [args]
    strategy:
      matrix:
        os:
          - linux
          - windows
          - darwin
        arch:
          - amd64
          - arm64
    permissions:
      actions: read # For the detection of GitHub Actions environment.
      id-token: write # For signing.
      contents: write # For asset uploads.
    uses: slsa-framework/slsa-github-generator/.github/workflows/builder_go_slsa3.yml@v1.10.0
    with:
      go-version-file: "go.mod"
      config-file: .slsa-goreleaser/${{matrix.os}}-${{matrix.arch}}.yml
      compile-builder: true
      evaluated-envs: "VERSION:${{needs.args.outputs.version}}"

  verification:
    needs: [builder]
    runs-on: ubuntu-latest
    if: github.event_name != 'schedule' && github.event_name != 'workflow_dispatch'
    permissions: read-all
    steps:
      - name: Install the verifier
        uses: slsa-framework/slsa-verifier/actions/installer@v2.4.1

      - name: Download assets
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          ATT_FILE_NAME: "${{ needs.builder.outputs.go-binary-name }}.intoto.jsonl"
          ARTIFACT: ${{ needs.builder.outputs.go-binary-name }}
        run: |
          set -euo pipefail

          gh -R "$GITHUB_REPOSITORY" release download "$GITHUB_REF_NAME" -p $ARTIFACT
          gh -R "$GITHUB_REPOSITORY" release download "$GITHUB_REF_NAME" -p "$ATT_FILE_NAME"

      - name: Verify assets
        env:
          ARTIFACT: ${{ needs.builder.outputs.go-binary-name }}
          ATT_FILE_NAME: "${{ needs.builder.outputs.go-binary-name }}.intoto.jsonl"
        run: |
          set -euo pipefail

          echo "Verifying $ARTIFACT using $ATT_FILE_NAME"
          slsa-verifier verify-artifact --provenance-path "$ATT_FILE_NAME" \
                                        --source-uri "github.com/$GITHUB_REPOSITORY" \
                                        --source-tag "$GITHUB_REF_NAME" \
                                        "$ARTIFACT"

  if-succeed:
    needs: [args, builder]
    runs-on: ubuntu-latest
    # We use `== 'failure'` instead of ` != 'success'` because we want to ignore skipped jobs, if there are any.
    if: github.event_name == 'schedule' && needs.args.result != 'failure' && needs.builder.result != 'failure'
    permissions:
      contents: read
      issues: write
    steps:
      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
        with:
          repository: slsa-framework/example-package
          ref: main
      - run: ./.github/workflows/scripts/e2e-report-success.sh

  if-failed:
    needs: [args, builder]
    runs-on: ubuntu-latest
    if: always() && github.event_name == 'schedule' && (needs.args.result == 'failure' || needs.builder.result == 'failure')
    permissions:
      contents: read
      issues: write
    steps:
      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
        with:
          repository: slsa-framework/example-package
          ref: main
      - run: ./.github/workflows/scripts/e2e-report-failure.sh