migration-db-check.yml

name: Check database migration
on:
  pull_request:
    branches:
      - 'main'
    paths:
      - 'packages/domain/prisma/migrations/**'

env:
  PLANETSCALE_SERVICE_TOKEN_ID: ${{ secrets.PLANETSCALE_SERVICE_TOKEN_ID }}
  PLANETSCALE_SERVICE_TOKEN: ${{ secrets.PLANETSCALE_SERVICE_TOKEN }}

jobs:
  migration-detail:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Setup pscale
        uses: planetscale/setup-pscale-action@v1

      - name: Set database branch name
        run: echo "PSCALE_BRANCH_NAME=$(echo ${{ github.head_ref }} | tr -cd '[:alnum:]-'| tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV

      - name: Create deploy request on development branch
        run: |
          DEPLOY_REQUEST_STATE=$(pscale deploy-request show ${{ secrets.PLANETSCALE_DATABASE_NAME }} ${{ env.PSCALE_BRANCH_NAME }} --org ${{ secrets.PLANETSCALE_ORG_NAME }} -f json | jq -r '.state')

          echo "Deploy request State: $DEPLOY_REQUEST_STATE"

          if [ "$DEPLOY_REQUEST_STATE" = "open" ]; then
            echo "Deploy request exists: skipping creation"
          else
            echo "Deploy request does not exist : creating..."
            pscale deploy-request create ${{ secrets.PLANETSCALE_DATABASE_NAME }} ${{ env.PSCALE_BRANCH_NAME }} \
            --org ${{ secrets.PLANETSCALE_ORG_NAME }} \
            --into dev \
            --notes "Apply changes to the dev branch"
          fi

      - name: Get deploy request number
        run: |
          DEPLOY_REQUEST_NUMBER=$(pscale deploy-request show ${{ secrets.PLANETSCALE_DATABASE_NAME }} ${{ env.PSCALE_BRANCH_NAME }} --org ${{ secrets.PLANETSCALE_ORG_NAME }} -f json | jq -r '.number')
          echo "DEPLOY_REQUEST_NUMBER=$DEPLOY_REQUEST_NUMBER" >> $GITHUB_ENV

      - name: Check deployment state
        continue-on-error: false
        run: |
          for i in {1..10}; do
            DEPLOYMENT_STATE=$(pscale deploy-request show ${{ secrets.PLANETSCALE_DATABASE_NAME }} ${{ env.DEPLOY_REQUEST_NUMBER }} --org ${{ secrets.PLANETSCALE_ORG_NAME }} --format json | jq -r '.deployment_state')
            echo "Deployment State: $DEPLOYMENT_STATE"

            if [ "$DEPLOYMENT_STATE" = "ready" ]; then
              echo "Deployment state is ready. Continuing."
              echo "DEPLOY_REQUEST_OPENED=true" >> $GITHUB_ENV
              break
            fi

            echo "Deployment state is not ready. Waiting 2 seconds before checking again."
            sleep 2
          done

      - name: Collect the migration diff
        continue-on-error: false
        if: ${{ env.DEPLOY_REQUEST_OPENED }}
        run: |
          DEPLOY_DATA=$(pscale api organizations/${{ secrets.PLANETSCALE_ORG_NAME }}/databases/${{ secrets.PLANETSCALE_DATABASE_NAME }}/deploy-requests/${{ env.DEPLOY_REQUEST_NUMBER }}/deployment --org planetscale)
          CAN_DROP_DATA=$(echo "$DEPLOY_DATA" | jq -r '.deploy_operations[] | select(.can_drop_data == true) | .can_drop_data')

          echo "Deploy request opened: https://app.planetscale.com/${{ secrets.PLANETSCALE_ORG_NAME }}/${{ secrets.PLANETSCALE_DATABASE_NAME }}/deploy-requests/${{ env.DEPLOY_REQUEST_NUMBER }}" >> migration-message.txt
          echo "" >> migration-message.txt

          if [ "$CAN_DROP_DATA" = "true" ]; then
            echo ":rotating_light: You are dropping a column. Before running the migration make sure to do the following:" >> migration-message.txt
            echo "" >> migration-message.txt

            echo "1. [ ] Deploy app changes to ensure the column is no longer being used." >> migration-message.txt
            echo "2. [ ] Once you've verified it's no used, run the deploy request." >> migration-message.txt
            echo "" >> migration-message.txt
          else
            echo "When adding to the schema, the Deploy Request must be run **before** the code is deployed." >> migration-message.txt
            echo "Please ensure your schema changes are compatible with the application code currently running in production." >> migration-message.txt
            echo "" >> migration-message.txt

            echo "1. [ ] Successfully run the Deploy Request" >> migration-message.txt
            echo "2. [ ] Deploy this PR" >> migration-message.txt
            echo "" >> migration-message.txt
          fi

          echo "\`\`\`diff" >> migration-message.txt
          pscale deploy-request diff ${{ secrets.PLANETSCALE_DATABASE_NAME }} ${{ env.DEPLOY_REQUEST_NUMBER }} --org ${{ secrets.PLANETSCALE_ORG_NAME }} -f json | jq -r '.[].raw' >> migration-message.txt
          echo "\`\`\`" >> migration-message.txt

      - name: Comment pull request with the migration diff
        uses: thollander/actions-comment-pull-request@v2
        if: ${{ env.DEPLOY_REQUEST_OPENED }}
        with:
          filePath: migration-message.txt