name: Documentation issue for labeled PR

on:
  pull_request:
    types:
      - closed
      - labeled

jobs:
  pr2docissue:
    runs-on: ubuntu-latest
    name: Create issue on doc repo for labeled issue
    steps:

      # obfuscate the github token so it can be used on jobs triggered from forks
      - name: Clear GH Token
        if: github.event.pull_request.merged && ( ( github.event.action == 'closed' && contains( github.event.pull_request.labels.*.name, 'Needs Documentation') ) || github.event.label.name == 'Needs Documentation' )
        id: token
        uses: opengisch/clear-token@v1.0.12
        with:
          bot_token_encrypted: ddbdec32940df79f1adf2369b4b10f10b5a66f65
          bot_token_xor_key: a1b2c3d47311f8e29e204f85a81b4df4a44e252c

      # transform the milestone (e.g. 3.10.4) to a doc label (3.10)
      - name: QGIS milestone to Doc label
        if: github.event.pull_request.merged && ( ( github.event.action == 'closed' && contains( github.event.pull_request.labels.*.name, 'Needs Documentation') ) || github.event.label.name == 'Needs Documentation' )
        id: milestone2label
        env:
          MILESTONE: ${{ github.event.pull_request.milestone.title }}
        run: |
          LABEL=$(sed -r 's/^([[:digit:]]\.[[:digit:]]+)(\.[[:digit:]]+)?$/\1/' <<< ${MILESTONE})
          echo ${LABEL}
          echo "::set-output name=label::${LABEL}"
            # get the PR body

      # get the PR body
      - name: Get PR body as JSON
        if: github.event.pull_request.merged && ( ( github.event.action == 'closed' && contains( github.event.pull_request.labels.*.name, 'Needs Documentation') ) || github.event.label.name == 'Needs Documentation' )
        id: get_pr_info
        uses: octokit/request-action@v2.x
        env:
          GITHUB_TOKEN: ${{ steps.token.outputs.token }}
        with:
          route: GET /repos/qgis/QGIS/pulls/:pull_number
          pull_number: ${{ github.event.pull_request.number }}

      # extract body from json output
      - name: Get PR body as text
        if: github.event.pull_request.merged && ( ( github.event.action == 'closed' && contains( github.event.pull_request.labels.*.name, 'Needs Documentation') ) || github.event.label.name == 'Needs Documentation' )
        id: get_pr_body
        uses: gr2m/get-json-paths-action@v1.x
        with:
          json: ${{ steps.get_pr_info.outputs.data }}
          body: "body"

      # get commits from the PR
      - name: Get PR commits
        if: github.event.pull_request.merged && ( ( github.event.action == 'closed' && contains( github.event.pull_request.labels.*.name, 'Needs Documentation') ) || github.event.label.name == 'Needs Documentation' )
        uses: octokit/request-action@v2.x
        id: get_pr_commits
        env:
          GITHUB_TOKEN: ${{ steps.token.outputs.token }}
        with:
          route: GET /repos/qgis/QGIS/pulls/:pull_number/commits
          pull_number: ${{ github.event.pull_request.number }}

      # extracts the matching commits
      - name: Filter commits with \[needs?.doc(umentation)?s?\]
        if: github.event.pull_request.merged && ( ( github.event.action == 'closed' && contains( github.event.pull_request.labels.*.name, 'Needs Documentation') ) || github.event.label.name == 'Needs Documentation' )
        id: filtered_commits
        env:
          JSON_DATA: ${{ steps.get_pr_commits.outputs.data }}
        run: |
          COMMITS_MESSAGES=$(echo ${JSON_DATA} | jq '.[].commit.message | select( . |test("\\[(feature|needs?.doc(umentation)?s?)\\]"; "i")) | sub("\\[needs?.doc(umentation)?s?\\]"; "\n\n\n\n"; "i")')
          echo "::set-output name=commits::$(echo ${COMMITS_MESSAGES} | tr -d '\n' )"

      # create the documentation issue
      - name: Create Documentation issue
        if: github.event.pull_request.merged && ( ( github.event.action == 'closed' && contains( github.event.pull_request.labels.*.name, 'Needs Documentation') ) || github.event.label.name == 'Needs Documentation' )
        id: doc_issue
        uses: maxkomarychev/oction-create-issue@v0.7.1
        with:
          token: ${{ steps.token.outputs.token }}
          owner: qgis
          repo: QGIS-Documentation
          title: ${{ format('{0} (Request in QGIS)', github.event.pull_request.title) }}
          # do not modify the QGIS version, an action automatically creates a label in the doc repo
          # this is not possible to set labels directly due to security reasons
          # the token is in clear, so no rights are given to qgis-bot
          body: |
            ### Request for documentation
            From pull request QGIS/qgis#${{ github.event.pull_request.number }}
            Author: @${{ github.event.pull_request.user.login }}
            QGIS version: ${{ steps.milestone2label.outputs.label }}

            **${{ github.event.pull_request.title }}**

            ### PR Description:
            ${{ steps.get_pr_body.outputs.body }}

            ### Commits tagged with [need-docs] or [FEATURE]
            ${{ steps.filtered_commits.outputs.commits }}

      # write comment to ping the PR author
      - name: Create comment
        if: github.event.pull_request.merged && ( ( github.event.action == 'closed' && contains( github.event.pull_request.labels.*.name, 'Needs Documentation') ) || github.event.label.name == 'Needs Documentation' )
        uses: peter-evans/create-or-update-comment@v1
        with:
          token: ${{ steps.token.outputs.token }}
          issue-number: ${{ github.event.pull_request.number }}
          body: |
            @${{ github.event.pull_request.user.login }}
            A documentation ticket has been opened at https://github.com/qgis/QGIS-Documentation/issues/${{ steps.doc_issue.outputs.number }}
            It is **your** responsibility to visit this ticket and add as much detail as possible for the documentation team to correctly document this change.
            Thank you!
          reaction-type: 'rocket'