name: Deploy Uffizzi Preview

on:
  workflow_run:
    workflows:
      - "Build PR Image"
    types:
      - completed

jobs:
  cache-compose-file:
    name: Cache Compose File
    runs-on: ubuntu-latest
    if: ${{ github.event.workflow_run.conclusion == 'success' }}
    outputs:
      compose-file-cache-key: ${{ env.COMPOSE_FILE_HASH }}
      pr-number: ${{ env.PR_NUMBER }}
    steps:
      - name: 'Download artifacts'
        # Fetch output (zip archive) from the workflow run that triggered this workflow.
        uses: actions/github-script@v6
        with:
          script: |
            let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
               owner: context.repo.owner,
               repo: context.repo.repo,
               run_id: context.payload.workflow_run.id,
            });
            let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
              return artifact.name == "preview-spec"
            })[0];
            if (matchArtifact === undefined) {
              throw TypeError('Build Artifact not found!');
            }
            let download = await github.rest.actions.downloadArtifact({
               owner: context.repo.owner,
               repo: context.repo.repo,
               artifact_id: matchArtifact.id,
               archive_format: 'zip',
            });
            let fs = require('fs');
            fs.writeFileSync(`${process.env.GITHUB_WORKSPACE}/preview-spec.zip`, Buffer.from(download.data));
      - name: 'Unzip artifact'
        run: unzip preview-spec.zip

      - name: Read Event into ENV
        run: |
          echo 'EVENT_JSON<<EOF' >> $GITHUB_ENV
          cat event.json >> $GITHUB_ENV
          echo -e '\nEOF' >> $GITHUB_ENV
      - name: Hash Rendered Compose File
        id: hash
        # If the previous workflow was triggered by a PR close event, we will not have a compose file artifact.
        if: ${{ fromJSON(env.EVENT_JSON).action != 'closed' }}
        run: echo "COMPOSE_FILE_HASH=$(md5sum docker-compose.rendered.yml | awk '{ print $1 }')" >> $GITHUB_ENV

      - name: Cache Rendered Compose File
        if: ${{ fromJSON(env.EVENT_JSON).action != 'closed' }}
        uses: actions/cache@v3
        with:
          path: docker-compose.rendered.yml
          key: ${{ env.COMPOSE_FILE_HASH }}

      - name: Read PR Number From Event Object
        id: pr
        run: echo "PR_NUMBER=${{ fromJSON(env.EVENT_JSON).number }}" >> $GITHUB_ENV

      - name: DEBUG - Print Job Outputs
        if: ${{ runner.debug }}
        run: |
          echo "PR number: ${{ env.PR_NUMBER }}"
          echo "Compose file hash: ${{ env.COMPOSE_FILE_HASH }}"
          cat event.json
  deploy-uffizzi-preview:
    name: Use Remote Workflow to Preview on Uffizzi
    needs:
      - cache-compose-file
    if: ${{ github.event.workflow_run.conclusion == 'success' }}
    uses: UffizziCloud/preview-action/.github/workflows/reusable.yaml@v2
    with:
      # If this workflow was triggered by a PR close event, cache-key will be an empty string
      # and this reusable workflow will delete the preview deployment.
      compose-file-cache-key: ${{ needs.cache-compose-file.outputs.compose-file-cache-key }}
      compose-file-cache-path: docker-compose.rendered.yml
      server: https://app.uffizzi.com
      pr-number: ${{ needs.cache-compose-file.outputs.pr-number }}
    permissions:
      contents: read
      pull-requests: write
      id-token: write