# https://github.com/sigstore/gh-action-sigstore-python/blob/b3690e3a279c94669b1e9e4e1e29317cdc7a52d5/.github/workflows/selftest.yml

# Copyright 2022 The Sigstore Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

name: Self-test

on:
  push:
    branches:
      - main
  pull_request:
  workflow_dispatch:
  workflow_call:

permissions:
  id-token: write

jobs:
  selftest:
    strategy:
      matrix:
        os:
          - ubuntu-latest
          - macos-latest
          - windows-latest
    runs-on: ${{ matrix.os }}
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        if: ${{ matrix.os != 'ubuntu-latest' }}
        with:
          python-version: "3.x"
      - name: Sign artifact and publish signature
        uses: ./
        id: sigstore-python
        with:
          inputs: ./test/artifact.txt
          internal-be-careful-debug: true
      - name: Check outputs
        shell: bash
        run: |
          [[ -f ./test/artifact.txt.sigstore ]] || exit 1

  selftest-release-signing-artifacts-no-op:
    strategy:
      matrix:
        os:
          - ubuntu-latest
          - macos-latest
          - windows-latest
    runs-on: ${{ matrix.os }}
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        if: ${{ matrix.os != 'ubuntu-latest' }}
        with:
          python-version: "3.x"
      - name: Sign artifact and publish signature
        uses: ./
        id: sigstore-python
        with:
          inputs: ./test/artifact.txt
          # The trigger for this test is not a release, so this has no effect
          # (but does not break the workflow either).
          release-signing-artifacts: true
          internal-be-careful-debug: true
      - name: Check outputs
        shell: bash
        run: |
          [[ -f ./test/artifact.txt.sigstore ]] || exit 1

  selftest-xfail-invalid-inputs:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        input:
          # We forbid inputs that look like flags
          - "--this-should-not-work"
          # We fail if the input doesn't exist
          - "/tmp/extremely-nonexistent-file"
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - name: Sign artifact and publish signature
        continue-on-error: true
        uses: ./
        id: sigstore-python
        with:
          inputs: ${{ matrix.input }}
          internal-be-careful-debug: true
      - name: Check failure
        env:
          XFAIL: ${{ steps.sigstore-python.outcome == 'failure' }}
          JOB_NAME: ${{ github.job }}
        run: |
          echo "xfail ${JOB_NAME}: ${XFAIL}"

          [[ "${XFAIL}" == "true" ]] || { >&2 echo "expected step to fail"; exit 1; }

  selftest-staging:
    runs-on: ubuntu-latest
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - name: Sign artifact and publish signature
        uses: ./
        id: sigstore-python
        with:
          inputs: ./test/artifact.txt
          staging: true
          internal-be-careful-debug: true
      - name: Check outputs
        run: |
          [[ -f ./test/artifact.txt.sigstore ]] || exit 1

  selftest-glob:
    runs-on: ubuntu-latest
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - name: Sign artifacts and publish signatures
        uses: ./
        id: sigstore-python
        with:
          inputs: ./test/*.txt
          staging: true
          internal-be-careful-debug: true
      - name: Check outputs
        run: |
          [[ -f ./test/artifact.txt.sigstore ]] || exit 1
          [[ -f ./test/artifact1.txt.sigstore ]] || exit 1
          [[ -f ./test/artifact2.txt.sigstore ]] || exit 1

  selftest-xfail-glob-input-expansion:
    runs-on: ubuntu-latest
    env:
      TEST_DIR: test
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - name: Sign artifacts and publish signatures
        continue-on-error: true
        uses: ./
        id: sigstore-python
        with:
          # This should fail since we should never directly expand ${TEST_DIR};
          # the user should have to pre-expand it for us.
          inputs: ./${TEST_DIR}/*.txt
          staging: true
          internal-be-careful-debug: true
      - name: Check failure
        env:
          XFAIL: ${{ steps.sigstore-python.outcome == 'failure' }}
          JOB_NAME: ${{ github.job }}
        run: |
          echo "xfail ${JOB_NAME}: ${XFAIL}"

          [[ "${XFAIL}" == "true" ]] || { >&2 echo "expected step to fail"; exit 1; }

  selftest-glob-multiple:
    runs-on: ubuntu-latest
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - name: Sign artifacts and publish signatures
        uses: ./
        id: sigstore-python
        with:
          inputs: ./test/artifact*.txt ./test/another*.txt ./test/subdir/*.txt
          staging: true
          internal-be-careful-debug: true
      - name: Check outputs
        run: |
          [[ -f ./test/artifact.txt.sigstore ]] || exit 1
          [[ -f ./test/artifact1.txt.sigstore ]] || exit 1
          [[ -f ./test/artifact2.txt.sigstore ]] || exit 1
          [[ -f ./test/another1.txt.sigstore ]] || exit 1
          [[ -f ./test/another2.txt.sigstore ]] || exit 1
          [[ -f ./test/subdir/hello1.txt.sigstore ]] || exit 1
          [[ -f ./test/subdir/hello2.txt.sigstore ]] || exit 1
          [[ -f ./test/subdir/hello3.txt.sigstore ]] || exit 1

  selftest-upload-artifacts:
    runs-on: ubuntu-latest
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - name: Sign artifact and publish signature
        uses: ./
        id: sigstore-python
        with:
          inputs: ./test/artifact.txt
          staging: true
          upload-signing-artifacts: true
          internal-be-careful-debug: true
      - uses: actions/download-artifact@v4
        with:
          name: "signing-artifacts-${{ github.job }}"
          path: ./test/uploaded
      - name: Verify presence of uploaded files
        run: |
          [[ -f ./artifact.txt ]] || exit 1
          [[ -f ./artifact.txt.sigstore ]] || exit 1
        working-directory: ./test/uploaded

  selftest-custom-paths:
    runs-on: ubuntu-latest
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - name: Sign artifact and publish signature
        uses: ./
        id: sigstore-python
        with:
          inputs: ./test/artifact.txt
          signature: ./test/custom_signature.sig
          certificate: ./test/custom_certificate.crt
          bundle: ./test/custom_bundle.sigstore
          staging: true
          internal-be-careful-debug: true
      - name: Check outputs
        run: |
          [[ -f ./test/custom_signature.sig ]] || exit 1
          [[ -f ./test/custom_certificate.crt ]] || exit 1
          [[ -f ./test/custom_bundle.sigstore ]] || exit 1

  selftest-verify:
    runs-on: ubuntu-latest
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - name: Sign artifact and publish signature
        uses: ./
        id: sigstore-python
        with:
          inputs: ./test/artifact.txt
          verify: true
          verify-cert-identity: https://github.com/sigstore/gh-action-sigstore-python/.github/workflows/selftest.yml@${{ github.ref }}
          verify-oidc-issuer: https://token.actions.githubusercontent.com
          staging: true
          internal-be-careful-debug: true

  selftest-xfail-verify-missing-options:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        config:
          # fails if both verify-cert-identity and verify-oidc-issuer are missing
          - verify: true

          # fails if either is missing
          - verify: true
            verify-oidc-issuer: https://token.actions.githubusercontent.com

          - verify: true
            verify-cert-identity: https://github.com/sigstore/gh-action-sigstore-python/.github/workflows/selftest.yml@${{ github.ref }}

          # fails if either option is passed while verification is disabled
          - verify: false
            verify-oidc-issuer: https://token.actions.githubusercontent.com

          - verify: false
            verify-cert-identity: https://github.com/sigstore/gh-action-sigstore-python/.github/workflows/selftest.yml@${{ github.ref }}

    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - name: Sign artifact and publish signature
        continue-on-error: true
        uses: ./
        id: sigstore-python
        with:
          inputs: ./test/artifact.txt
          verify: ${{ matrix.config.verify }}
          verify-oidc-issuer: ${{ matrix.config.verify-oidc-issuer }}
          verify-cert-identity: ${{ matrix.config.verify-cert-identity }}
          staging: true
          internal-be-careful-debug: true

      - name: Check failure
        env:
          XFAIL: ${{ steps.sigstore-python.outcome == 'failure' }}
          JOB_NAME: ${{ github.job }}
        run: |
          echo "xfail ${JOB_NAME}: ${XFAIL}"

          [[ "${XFAIL}" == "true" ]] || { >&2 echo "expected step to fail"; exit 1; }

  selftest-identity-token:
    runs-on: ubuntu-latest
    if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
    steps:
      - uses: actions/checkout@v4
      - name: Get OIDC token
        id: get-oidc-token
        run: |
          identity_token=$( \
            curl -H \
              "Authorization: bearer $ACTIONS_ID_TOKEN_REQUEST_TOKEN" \
              "$ACTIONS_ID_TOKEN_REQUEST_URL&audience=sigstore" \
            | jq -r .value \
          )
          echo "identity-token=$identity_token" >> $GITHUB_OUTPUT
        shell: bash
      - name: Sign artifact and publish signature
        uses: ./
        id: sigstore-python
        with:
          inputs: ./test/artifact.txt
          identity-token: ${{ steps.get-oidc-token.outputs.identity-token }}
          staging: true
          internal-be-careful-debug: true

  all-selftests-pass:
    if: always()

    needs:
      - selftest
      - selftest-release-signing-artifacts-no-op
      - selftest-xfail-invalid-inputs
      - selftest-staging
      - selftest-glob
      - selftest-glob-multiple
      - selftest-upload-artifacts
      - selftest-custom-paths
      - selftest-verify
      - selftest-xfail-verify-missing-options
      - selftest-identity-token

    runs-on: ubuntu-latest

    steps:
      - name: check test jobs
        if: (github.event_name != 'pull_request') || !github.event.pull_request.head.repo.fork
        uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2
        with:
          jobs: ${{ toJSON(needs) }}