pr-preview.yml

name: PR preview

on:
  pull_request:
    types: [opened, synchronize, closed]
    paths:
      - 'emit-ch4plume-v1/**'
      - 'noaa-cpfp-point/**'
      - 'nist-interface/**'
      - 'goes-plume-viewer/**'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

env:
  S3_BUCKET: ${{ vars.DEPLOYMENT_BUCKET }}
  WEB_DISTRIBUTION_URL: ${{ vars.PREVIEW_WEB_DISTRIBUTION_URL }}
  PR_STRING: pr-preview-${{ github.event.number }}

jobs:
  build_and_deploy:
    if: ${{ github.event.action != 'closed' }}
    environment: development
    runs-on: ubuntu-latest

    permissions:
      id-token: write
      contents: read
      pull-requests: write

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - uses: actions/setup-node@v3
        with:
          node-version: 'v20.9.0'

      - name: Install Yarn
        run: npm install -g yarn

      - name: Determine changed files
        id: changes
        run: |
          git fetch origin ${{ github.event.pull_request.base.ref }} --depth=1
          git diff --name-only origin/${{ github.event.pull_request.base.ref }} > changed_files.txt
          cat changed_files.txt

          # Initialize CHANGED_WEBSITES as an empty array
          CHANGED_WEBSITES=()

          # Check for changed folders and add them to the array
          if grep -q 'emit-ch4plume-v1/' changed_files.txt; then
            CHANGED_WEBSITES+=('emit-ch4plume-v1')
          fi
          if grep -q 'noaa-cpfp-point/' changed_files.txt; then
            CHANGED_WEBSITES+=('noaa-cpfp-point')
          fi
          if grep -q 'nist-interface/' changed_files.txt; then
            CHANGED_WEBSITES+=('nist-interface')
          fi
          if grep -q 'goes-plume-viewer/' changed_files.txt; then
            CHANGED_WEBSITES+=('goes-plume-viewer')
          fi
          # Convert array to comma-separated string and set it as an environment variable
          CHANGED_WEBSITES_STRING=$(IFS=, ; echo "${CHANGED_WEBSITES[*]}")
          echo "CHANGED_WEBSITES=$CHANGED_WEBSITES_STRING" >> $GITHUB_ENV
      
      - name: Configure AWS Credentials 
        uses: aws-actions/configure-aws-credentials@v4
        with:
          role-to-assume: ${{ secrets.DEPLOYMENT_ROLE_ARN }}
          role-session-name: ${{ github.repository_owner}}
          aws-region: us-west-2

      - name: Validate required variables and secrets
        run: |
          IFS=',' read -r -a WEBSITES <<< "${{ env.CHANGED_WEBSITES }}"
          for WEBSITE in "${WEBSITES[@]}"; do
            if [ "$WEBSITE" == "emit-ch4plume-v1" ]; then
              missing_vars=()
              # Check for required variables
              [ -z "${{ vars.MAP_STYLE }}" ] && missing_vars+=("vars.MAP_STYLE")
              [ -z "${{ secrets.MAP_ACCESS_TOKEN }}" ] && missing_vars+=("secrets.MAP_ACCESS_TOKEN")
              [ -z "${{ vars.PUBLIC_URL_EMIT }}" ] && missing_vars+=("vars.PUBLIC_URL_EMIT")
              [ -z "${{ secrets.GEOAPIFY_APIKEY }}" ] && missing_vars+=("secrets.GEOAPIFY_APIKEY")
              # If any variables are missing, print them and exit with an error
              if [ ${#missing_vars[@]} -ne 0 ]; then
                echo "Error: The following required variables are missing:"
                printf '%s\n' "${missing_vars[@]}"
                exit 1
              fi
            elif [ "$WEBSITE" == "noaa-cpfp-point" ]; then
              missing_vars=()
              # Check for required variables
              [ -z "${{ vars.PUBLIC_URL_NOAA }}" ] && missing_vars+=("vars.PUBLIC_URL_NOAA")
              [ -z "${{ secrets.MAP_ACCESS_TOKEN }}" ] && missing_vars+=("secrets.MAP_ACCESS_TOKEN")
              # If any variables are missing, print them and exit with an error
              if [ ${#missing_vars[@]} -ne 0 ]; then
                echo "Error: The following required variables are missing:"
                printf '%s\n' "${missing_vars[@]}"
                exit 1
              fi
            elif [ "$WEBSITE" == "nist-interface" ]; then
              missing_vars=()
              # Check for required variables
              [ -z "${{ secrets.REACT_APP_MAPBOX_ACCESS_TOKEN }}" ] && missing_vars+=("secrets.REACT_APP_MAPBOX_ACCESS_TOKEN")
              [ -z "${{ secrets.REACT_APP_MAPBOX_STYLE_URL }}" ] && missing_vars+=("secrets.REACT_APP_MAPBOX_STYLE_URL")
              [ -z "${{ vars.FEATURES_API_URL }}" ] && missing_vars+=("vars.FEATURES_API_URL")
              # If any variables are missing, print them and exit with an error
              if [ ${#missing_vars[@]} -ne 0 ]; then
                echo "Error: The following required variables are missing:"
                printf '%s\n' "${missing_vars[@]}"
                exit 1
              fi
            elif [ "$WEBSITE" == "goes-plume-viewer" ]; then
              missing_vars=()
              # Check for required variables
              [ -z "${{ secrets.REACT_APP_MAPBOX_ACCESS_TOKEN }}" ] && missing_vars+=("secrets.REACT_APP_MAPBOX_TOKEN")
              [ -z "${{ secrets.REACT_APP_MAPBOX_STYLE_URL }}" ] && missing_vars+=("secrets.REACT_APP_MAPBOX_STYLE_URL")
              [ -z "${{ vars.REACT_APP_BASE_PATH_GOES }}" ] && missing_vars+=("vars.REACT_APP_BASE_PATH_GOES")
              # If any variables are missing, print them and exit with an error
              if [ ${#missing_vars[@]} -ne 0 ]; then
                echo "Error: The following required variables are missing:"
                printf '%s\n' "${missing_vars[@]}"
                exit 1
              fi
            fi
          done
        shell: bash

      - name: Build and deploy
        run: |
          IFS=',' read -r -a WEBSITES <<< "${{ env.CHANGED_WEBSITES }}"
          COMMENT="### ✅ Deploy Preview for *custom-interfaces* is ready! \n \n"
          for WEBSITE in "${WEBSITES[@]}"; do

            # EMIT
            if [ "$WEBSITE" == "emit-ch4plume-v1" ]; then
              echo MAP_STYLE="${{ vars.MAP_STYLE }}" >> ./emit-ch4plume-v1/.env
              echo MAP_ACCESS_TOKEN="${{ secrets.MAP_ACCESS_TOKEN }}" >> ./emit-ch4plume-v1/.env
              echo PUBLIC_URL="${{ vars.PUBLIC_URL_EMIT }}/${{ env.PR_STRING }}" >> ./emit-ch4plume-v1/.env
              echo STAGE="production" >> ./emit-ch4plume-v1/.env
              cd ./emit-ch4plume-v1
              GEOAPIFY_APIKEY="${{ secrets.GEOAPIFY_APIKEY }}" node update_data.js
              npm install
              npm run deploy
              cd ..
              aws s3 sync emit-ch4plume-v1/dist s3://${{ env.S3_BUCKET }}${{ vars.PUBLIC_URL_EMIT }}/${{ env.PR_STRING }}/
              aws s3 sync emit-ch4plume-v1/data s3://${{ env.S3_BUCKET }}${{ vars.PUBLIC_URL_EMIT }}/${{ env.PR_STRING }}/data/
              COMMENT+="- 🛰️ emit-ch4plume-v1: ${{ env.WEB_DISTRIBUTION_URL}}${{ vars.PUBLIC_URL_EMIT }}/${{ env.PR_STRING }}/ \n \n"
            
            elif [ "$WEBSITE" == "noaa-cpfp-point" ]; then
              echo PUBLIC_URL="${{ vars.PUBLIC_URL_NOAA }}/${{ env.PR_STRING }}" >> ./noaa-cpfp-point/.env
              echo MAPBOX_ACCESS_TOKEN="${{ secrets.MAP_ACCESS_TOKEN }}" >> ./noaa-cpfp-point/.env
              cd ./noaa-cpfp-point
              npm install
              PUBLIC_URL="${{ vars.PUBLIC_URL_NOAA }}/${{ env.PR_STRING }}" npm run production
              cd ..
              aws s3 sync noaa-cpfp-point/dist s3://${{ env.S3_BUCKET }}${{ vars.PUBLIC_URL_NOAA }}/${{ env.PR_STRING }}/
              aws s3 sync noaa-cpfp-point/data s3://${{ env.S3_BUCKET }}${{ vars.PUBLIC_URL_NOAA }}/${{ env.PR_STRING }}/data/

              COMMENT+="- 🗼 noaa-cpfp-point: ${{ env.WEB_DISTRIBUTION_URL}}${{ vars.PUBLIC_URL_NOAA }}/${{ env.PR_STRING }}/"
            
            elif [ "$WEBSITE" == "nist-interface" ]; then
              echo REACT_APP_MAPBOX_TOKEN="${{ secrets.REACT_APP_MAPBOX_ACCESS_TOKEN }}" >> ./nist-interface/.env
              echo REACT_APP_MAPBOX_STYLE_URL="${{ secrets.REACT_APP_MAPBOX_STYLE_URL }}" >> ./nist-interface/.env
              echo REACT_APP_FEATURES_API_URL="${{ vars.FEATURES_API_URL }}" >> ./nist-interface/.env
              echo PUBLIC_URL="${{ vars.PUBLIC_URL_NIST }}/${{ env.PR_STRING }}" >> ./nist-interface/.env

              cd ./nist-interface
              set -a; source .env; set +a
              yarn
              yarn build
              cd ..
              aws s3 sync nist-interface/build s3://${{ env.S3_BUCKET }}${PUBLIC_URL}
              COMMENT+="- 🗼 nist-interface: ${{ env.WEB_DISTRIBUTION_URL}}${PUBLIC_URL}/ \n \n"
            elif [ "$WEBSITE" == "goes-plume-viewer" ]; then

              echo >> ./goes-plume-viewer/.env # add a new line to append the below variables
              echo REACT_APP_MAPBOX_TOKEN="${{ secrets.REACT_APP_MAPBOX_ACCESS_TOKEN }}" >> ./goes-plume-viewer/.env
              echo REACT_APP_MAPBOX_STYLE_URL="${{ secrets.REACT_APP_MAPBOX_STYLE_URL }}" >> ./goes-plume-viewer/.env
              echo REACT_APP_BASE_PATH="${{ vars.REACT_APP_BASE_PATH_GOES }}/${{ env.PR_STRING }}" >> ./goes-plume-viewer/.env
              echo PUBLIC_URL="${{ vars.REACT_APP_BASE_PATH_GOES }}/${{ env.PR_STRING }}" >> ./goes-plume-viewer/.env
              echo REACT_APP_STAC_API_URL="${{ vars.REACT_APP_STAC_API_URL }}" >> ./goes-plume-viewer/.env
              echo REACT_APP_RASTER_API_URL="${{ vars.REACT_APP_RASTER_API_URL }}" >> ./goes-plume-viewer/.env
              echo REACT_APP_CLOUD_BROWSE_URL="${{ vars.REACT_APP_CLOUD_BROWSE_URL }}" >> ./goes-plume-viewer/.env
              cd ./goes-plume-viewer
              set -a; source .env; set +a
              yarn
              CI=false yarn build
              cd ..
              aws s3 sync goes-plume-viewer/build s3://${{ env.S3_BUCKET }}${PUBLIC_URL}

              COMMENT+="- 🛰️ goes-plume-viewer: ${{ env.WEB_DISTRIBUTION_URL}}${PUBLIC_URL}/ \n \n"
            fi
            echo "COMMENT=${COMMENT}" >> $GITHUB_ENV
          done

      - name: Add/update PR comment
        id: find-comment
        run: |
          COMMENTS_URL="https://api.github.com/repos/${{ github.repository }}/issues/${{ github.event.pull_request.number }}/comments"
          COMMENTS=$(curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" $COMMENTS_URL)
          COMMENT_ID=$(echo $COMMENTS | jq -r '.[] | select(.user.login == "github-actions[bot]") | .id')
          if [ -z "$COMMENT_ID" ]; then
            curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" -X POST -d "{\"body\":\"${{ env.COMMENT }}\"}" "https://api.github.com/repos/${{ github.repository }}/issues/${{ github.event.pull_request.number }}/comments"
          else
            curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" -X PATCH -d "{\"body\":\"${{ env.COMMENT }}\"}" "https://api.github.com/repos/${{ github.repository }}/issues/comments/$COMMENT_ID"
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      
      - name: Request Invalidation to AWS Cloudfront
        uses: oneyedev/aws-cloudfront-invalidation@v1
        with:
          distribution-id: ${{ secrets.CF_DISTRIBUTION_ID }}
          paths: |
            /ghgcenter/custom-interfaces/*

  clean_up:
    if: ${{ github.event.action == 'closed' }}
    environment: development
    runs-on: ubuntu-latest

    permissions:
      id-token: write
      contents: read
      pull-requests: write

    steps:
      - name: Configure AWS Credentials 
        uses: aws-actions/configure-aws-credentials@v4
        with:
          role-to-assume: ${{ secrets.DEPLOYMENT_ROLE_ARN }}
          role-session-name: ${{ github.repository_owner }}
          aws-region: us-west-2

      - name: Delete built websites from S3
        run: |
          aws s3 rm s3://${{ env.S3_BUCKET }}${{ vars.PUBLIC_URL_EMIT }}/${{ env.PR_STRING }}/ --recursive
          aws s3 rm s3://${{ env.S3_BUCKET }}${{ vars.PUBLIC_URL_NOAA }}/${{ env.PR_STRING }}/ --recursive
          aws s3 rm s3://${{ env.S3_BUCKET }}${{ vars.PUBLIC_URL_NIST }}/${{ env.PR_STRING }}/ --recursive
          aws s3 rm s3://${{ env.S3_BUCKET }}${{ vars.PUBLIC_URL_GOES }}/${{ env.PR_STRING }}/ --recursive

      - name: Remove PR comment
        run: |
          COMMENTS_URL="https://api.github.com/repos/${{ github.repository }}/issues/${{ github.event.pull_request.number }}/comments"
          COMMENTS=$(curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" $COMMENTS_URL)
          COMMENT_ID=$(echo $COMMENTS | jq -r '.[] | select(.user.login == "github-actions[bot]") | .id')
          if [ -n "$COMMENT_ID" ]; then
            curl -s -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" -X DELETE -d "{\"body\":\"${{ env.COMMENT }}\"}" "https://api.github.com/repos/${{ github.repository }}/issues/comments/$COMMENT_ID"
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}