changelog-report.yml

name: 'Send Changelog Report To Slack Channel'

on:
  workflow_dispatch:
    inputs:
      start_date:
        description: 'Start date for the changelog report. Example: 2024-01-01'
        required: true
      end_date:
        description: 'End date for the changelog report. Example: 2024-01-10'
        required: true
  schedule:
    - cron: '0 9 * * 1'  # Run every Monday at 09:00 UTC

jobs:
  send-changelog-report:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository (dev branch)
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
        with:
          ref: dev
          sparse-checkout: 
            changelog/
      - name: Install FOASCLI
        env:
          foascli_version: ${{ vars.FOASCLI_VERSION }}
        run: |
            wget https://github.com/mongodb/openapi/releases/download/v"${foascli_version}"/mongodb-foas-cli_"${foascli_version}"_linux_x86_64.tar.gz -O foascli.tar.gz
            tar -xzvf foascli.tar.gz 
            pushd mongodb-foas-cli_*
            echo "$(pwd)/bin" >> "${GITHUB_PATH}"
            popd  
      - name: Get Start and End Dates
        id: get-dates
        env: 
          START_DATE: ${{ inputs.start_date }}
          END_DATE: ${{ inputs.end_date }}
        run: |
          start_date="${START_DATE}"
          if [[ -z "${START_DATE}" ]]; then
            echo "Start date not provided"
            start_date=$(date -j -v-7d "+%Y-%m-%d")
            echo "Using 7 days ago as start date: ${start_date}"
          fi

          end_date="${END_DATE}"
          if [[ -z "${END_DATE}" ]]; then
            echo "End date not provided"
            end_date=$(date -j -v-2d "+%Y-%m-%d")
            echo "Using last Friday as end date: ${end_date}"
          fi
          
          echo start_date="${start_date}" >> "${GITHUB_OUTPUT}"
          echo end_date="${end_date}" >> "${GITHUB_OUTPUT}"
      - name: Get Changelog Entries
        env:
          START_DATE: ${{ steps.get-dates.outputs.start_date }}
          END_DATE: ${{ steps.get-dates.outputs.end_date }}
        run: |
          changelog_entries=$(jq --arg start_date "${START_DATE}" --arg end_date "${END_DATE}" ' map(select(.date >= $start_date and .date <= $end_date))' changelog/internal/changelog-all.json)
          echo "${changelog_entries}" > entries.json
      - name: Upload entries for debugging
        uses: actions/upload-artifact@834a144ee995460fba8ed112a2fc961b36a5ec5a
        with:
            name: changelog_entries_in_range
            retention-days: 1
            path: |
              entries.json
      - name: Send Initial Slack Message
        id: send-initial-slack-message
        env:
          SLACK_CHANNEL_ID: ${{ secrets.SLACK_CHANNEL_ID }}
          SLACK_BEARER_TOKEN: ${{ secrets.SLACK_BEARER_TOKEN }}
          START_DATE: ${{ steps.get-dates.outputs.start_date }}
          END_DATE: ${{ steps.get-dates.outputs.end_date }}
        run: |
            if < entries.json jq -e 'length == 0' > /dev/null; then
              echo "No changelog entries found"
              exit 0
            fi

            compatible_changes=$(jq '[.. | objects | select(has("backwardCompatible") and .backwardCompatible == true)] | length' entries.json)
            echo "compatible_changes=${compatible_changes}"

            breaking_changes=$(jq '[.. | objects | select(has("backwardCompatible") and .backwardCompatible == false)] | length' entries.json)
            echo "breaking_changes=${breaking_changes}"

            if [[ "${compatible_changes}" -eq 0 && "${breaking_changes}" -eq 0 ]]; then
              echo "No changelog entries found"
              exit 0
            fi
            
            message_id=$(curl -X POST -H 'Authorization: Bearer '"${SLACK_BEARER_TOKEN}" \
            -H 'Content-type: application/json' \
            --data '{"channel":"'"${SLACK_CHANNEL_ID}"'","text":"List of API changes (*cloud-dev*) from *'"${START_DATE}"'* to *'"${END_DATE}"'*.\n\n*Summary*:\n\n:large_green_circle: Backward Compatible Changes: *'"${compatible_changes}"'*\n:red_circle: Breaking Changes: *'"${breaking_changes}"'*","parse": "full",}' https://slack.com/api/chat.postMessage | jq '.ts')
            
            echo "message_id=${message_id}"
            echo "message_id=${message_id}" >> "${GITHUB_OUTPUT}"

            sleep 2 # wait for 2 seconds to avoid slack rate limit
      - name: Send Changelog Entries as Slack Thread
        id: send-changelog-entries
        env:
          SLACK_CHANNEL_ID: ${{ secrets.SLACK_CHANNEL_ID }}
          SLACK_BEARER_TOKEN: ${{ secrets.SLACK_BEARER_TOKEN }}
          MESSAGE_ID: ${{ steps.send-initial-slack-message.outputs.message_id }}
        run: |
          messages=$(foascli changelog convert slack --path entries.json --msg-id "${MESSAGE_ID}" -c "${SLACK_CHANNEL_ID}")
          
          # Loop over each element in the JSON array
          for i in $(echo "${messages}" | jq -r 'range(0; length)'); do
              message=$(echo "${messages}" | jq -r ".[$i]")
              curl -X POST -H 'Authorization: Bearer '"${SLACK_BEARER_TOKEN}" \
              -H 'Content-type: application/json' \
              --data "${message}" https://slack.com/api/chat.postMessage
          
              sleep 2 # wait for 2 seconds to avoid slack rate limit
          done