name: update-crates

on:
  schedule:
    - cron: "0 8,12,16,20 * * *"
  workflow_dispatch:

jobs:
  update-crates:
    env:
      GITHUB_CONTEXT: ${{ toJson(github) }}
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      REPO: ${{ github.repository }}
      BOT_UPDATE_BRANCHE_NAME: "bot/update-crates"
    name: update-crates
    runs-on: ubuntu-latest
    steps:

      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          ref: master

      - name: Crates update
        run: |
            update_crates_output="update.output"
            echo "update_crates_output=${update_crates_output}" | tee -a "${GITHUB_ENV}"
            bin/update_crates.sh 2>&1 | tee "${update_crates_output}" && crates_update_exit_code=0 || crates_update_exit_code=$?
            if [ ${crates_update_exit_code} -eq 0 ] ; then
                echo "  - ✅ Update crates succeeds."
            else
                echo "  - ❌ A problem occurs updating crates. Please refer to ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID} logs."
                exit 1
            fi

      - name: Get actual pull request id
        run: |
            ACTUAL_PR_NUMBER=$(gh pr list --repo "${REPO}" --head "${BOT_UPDATE_BRANCHE_NAME}" --state "open" --json number --jq .[].number)
            ACTUAL_PR_NUMBER=${ACTUAL_PR_NUMBER:-0}
            echo "ACTUAL_PR_NUMBER=${ACTUAL_PR_NUMBER}" | tee -a "${GITHUB_ENV}"
            
      - name: Close actual pull request
        run: |
            if [ ${ACTUAL_PR_NUMBER} -eq 0 ] ; then
                echo "  - ✅ There is no pull request to close."            
            else
                updated_crates_count=$(grep -v "crates.io index" "${update_crates_output}" | grep -cE "updated to |Updating " || true)
                if [ ${updated_crates_count} -eq 0 ] ; then
                    comment="✅ Pull request n°${ACTUAL_PR_NUMBER} closed because crates are up to date on master branch."
                else
                    comment="✅ Pull request n°${ACTUAL_PR_NUMBER} closed before opening new one with new updated crates list."
                fi
                gh pr close "${ACTUAL_PR_NUMBER}" --comment "${comment}" --delete-branch && gh_exit_code=0 || gh_exit_code=$?
                if [ ${gh_exit_code} -eq 0 ] ; then                     
                    echo "  - ${comment}"
                else
                    comment="❌ A problem occurs when bot attempts to close PR n°${ACTUAL_PR_NUMBER}."
                    gh pr comment "${ACTUAL_PR_NUMBER}" --body "${comment} Please refer to ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID} logs."
                    echo "  - ${comment}"
                    exit 1
                fi
            fi                
            
      - name: Push updates to branch
        run: |
            git config --local user.email "action@github.com"
            git config --local user.name "GitHub Action"
            git checkout -b "${BOT_UPDATE_BRANCHE_NAME}"
            git commit -am "ˉᵇᵒᵗˉUpdate crates on $(date "+%y/%m/%d %H:%M")"
            git push --set-upstream origin "${BOT_UPDATE_BRANCHE_NAME}" && git_exit_code=0 || git_exit_code=$?
            if [ ${git_exit_code} -eq 0 ] ; then
                echo "  - ✅ push crates update to ${BOT_UPDATE_BRANCHE_NAME} succeeds."                 
            else
                echo "  - ❌ A problem occurs when attempting to push crates update to origin/${BOT_UPDATE_BRANCHE_NAME}."
                exit 1
            fi
            branch_exists=$(git ls-remote | (grep -c "${BOT_UPDATE_BRANCHE_NAME}" || true))
            if [ ${branch_exists} -eq 1 ] ; then
                echo "  - ✅ The origin/${BOT_UPDATE_BRANCHE_NAME} now branch exists on remote."                        
            else
                echo "  - ❌ Git push command succeeds but origin/${BOT_UPDATE_BRANCHE_NAME} still does not exist on remote."
                exit 1
            fi

      - name: Create new pull request
        run: |
            GITHUB_TOKEN=${{ secrets.LEPAPAREIL_CI_TOKEN }}
            gh pr create --fill --base master --head "${BOT_UPDATE_BRANCHE_NAME}" && gh_exit_code=0 || gh_exit_code=$?
            if [ ${gh_exit_code} -eq 0 ] ; then
                NEW_PR_NUMBER=$(gh pr list --repo "${REPO}" --head "${BOT_UPDATE_BRANCHE_NAME}" --state "open" --json number --jq .[].number)
                echo "  - ✅ Creation of pull request n°${NEW_PR_NUMBER} succeeds."
            else
                echo "  - ❌ A problem occurs when attempting to create new pull request."
                exit 1
            fi
            pr_comment_file="comment_file.md"
            (grep -vE "newest|crates.io index" "${update_crates_output}" || true) | \
                tr -s ' ' | \
                    sed -r "s/\x1B\[([0-9]{1,3}(;[0-9]{1,2})?)?[mGK]//g" | \
                        sed "s/Updating //g" | \
                            sed "s/: updated to / -> /g" | \
                                sed "s/^=>/###/g" | \
                                    sed "s/^ /- /g" > "${pr_comment_file}"                
            pr_comment="$(cat "${pr_comment_file}")"            
            GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}
            gh pr comment "${NEW_PR_NUMBER}" --body "${pr_comment}" && gh_exit_code=0 || gh_exit_code=$?
            if [ ${gh_exit_code} -eq 0 ] ; then
                echo "  - ✅ Comment updates list to pull request succeeds."
            else
                echo "  - ❌ A problem occurs when attempting to create updates list comment in new pull request n°${NEW_PR_NUMBER}."
                exit 1
            fi