name: Plugin update
run-name: Update ${{ inputs.repo }} by @${{ github.actor }}

on:
  workflow_dispatch:
    inputs:
      repo:
        type: string
        description: 'The owner and repository name. Ex: hashicorp/vault-plugin-auth-jwt'
        required: true
      plugin_tag:
        type: string
        description: 'The name of the plugin tag. Ex: v0.5.1'
        required: true

jobs:
  plugin-update:
    runs-on: ubuntu-latest
    env:
      VAULT_BRANCH: "update/${{ inputs.repo }}/${{ inputs.plugin_tag }}"
    steps:
      - run: echo "Branch ${{ inputs.plugin_tag }} of ${{ inputs.repo }}"
      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
        with:
          # We don't use the default token so that checks are executed on the resulting PR
          # https://docs.github.com/en/actions/using-workflows/triggering-a-workflow#triggering-a-workflow-from-a-workflow
          token: ${{ secrets.ELEVATED_GITHUB_TOKEN }}

      - uses: actions/setup-go@fac708d6674e30b6ba41289acaab6d4b75aa0753 # v4.0.1
        with:
          cache: false # save cache space for vault builds: https://github.com/hashicorp/vault/pull/21764
          go-version-file: .go-version

      - name: update plugin
        run: |
          go get "github.com/${{ inputs.repo }}@${{ inputs.plugin_tag }}"
          go mod tidy

      - name: detect changes
        run: |
          count=$(git status --porcelain=v1 2>/dev/null | wc -l)
          if [ "$count" -eq 0 ]; then
            echo "error: no updates were made for repo ${{ inputs.repo }} with tag ${{ inputs.plugin_tag }}"
            exit 1
          fi

      - name: commit/push
        run: |
          git config user.name hc-github-team-secure-vault-ecosystem
          git config user.email hc-github-team-secure-vault-ecosystem@users.noreply.github.com
          git add go.mod go.sum
          git commit -m "Automated dependency upgrades"
          git push -f origin ${{ github.ref_name }}:"$VAULT_BRANCH"

      - name: Open pull request if needed
        id: pr
        env:
          GITHUB_TOKEN: ${{secrets.ELEVATED_GITHUB_TOKEN}}
        # Only open a PR if the branch is not attached to an existing one
        run: |
          PR=$(gh pr list --head "$VAULT_BRANCH" --json number -q '.[0].number')

          if [ -z "$PR" ]; then
            gh pr create \
            --head "$VAULT_BRANCH" \
            --reviewer "${{ github.actor }}" \
            --title "Update ${{ inputs.repo }} to ${{ inputs.plugin_tag }}" \
            --body "This PR was generated by a GitHub Action. Full log: https://github.com/hashicorp/vault/actions/runs/${{ github.run_id }}"

            echo "vault_pr_num=$(gh pr list --head "$VAULT_BRANCH" --json number -q '.[0].number')" >> "$GITHUB_OUTPUT"
            echo "vault_pr_url=$(gh pr list --head "$VAULT_BRANCH" --json url -q '.[0].url')" >> "$GITHUB_OUTPUT"
          else
            echo "Pull request already exists, won't create a new one."
          fi

      - name: Add changelog
        if: steps.pr.outputs.vault_pr_num != ''
        run: |
          # strip "hashicorp/" from repo name
          PLUGIN=$(echo ${{ inputs.repo }} | awk -F/ '{print $NF}')
          echo "plugin: $PLUGIN"

          # plugin type is one of auth/secrets/database
          PLUGIN_TYPE=$(echo "$PLUGIN" | awk -F- '{print $3}')
          echo "plugin type: $PLUGIN_TYPE"

          # plugin service is the rest of the repo name
          PLUGIN_SERVICE=$(echo "$PLUGIN" | cut -d- -f 4-)
          echo "plugin service: $PLUGIN_SERVICE"

          echo "\`\`\`release-note:change
          ${PLUGIN_TYPE}/${PLUGIN_SERVICE}: Update plugin to ${{ inputs.plugin_tag }}
          \`\`\`" > "changelog/${{ steps.pr.outputs.vault_pr_num }}.txt"

          git add changelog/
          git commit -m "Add changelog"
          git push origin ${{ github.ref_name }}:"$VAULT_BRANCH"

      - name: Add labels to Vault PR
        if: steps.pr.outputs.vault_pr_num != ''
        env:
          # this is a different token to the one we have been using that should
          # allow us to add labels
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
        continue-on-error: true
        run: |
          gh pr edit "${{ steps.pr.outputs.vault_pr_num }}" \
            --add-label "dependencies" \
            --repo hashicorp/vault