name: Report Download Stats

on:
  schedule:
    - cron: '0/15 * * * *' # run every 15 min - don't forget to adjust the "interval" in the json sent to the metrics endpoint

jobs:
  report-download-stats:
    runs-on: ubuntu-latest
    steps:
      - name: Get download count of latest releases
        id: get-stats
        uses: actions/github-script@v6
        with:
          script: |
            const query = `query($owner:String!, $name:String!) {
              repository(owner:$owner, name:$name){
                releases(first: 10, orderBy: {field: CREATED_AT, direction: DESC}) {
                  nodes {
                    isPrerelease
                    tagName
                    releaseAssets(first: 20) {
                      nodes {
                        name
                        downloadCount
                      }
                    }
                  }
                }
              }
            }`;
            const variables = {
              owner: context.repo.owner,
              name: context.repo.repo
            }
            return await github.graphql(query, variables)
      - name: Transform Results
        id: transform-stats
        run: |
          TIME=$(($(date +%s) / $INTERVAL * $INTERVAL))
          echo ${JSON_DATA} | jq --arg TIME "$TIME" --arg INTERVAL "$INTERVAL" -c '.repository.releases.nodes[] | select(.isPrerelease == false) | .tagName as $tagName | .releaseAssets.nodes[] | {filename: .name, downloads: .downloadCount, release: $tagName, time: ($TIME|tonumber), interval: ($INTERVAL|tonumber)}' > input.json

          jq -c 'select(.filename|endswith("-x86_64.AppImage")) | {name: "github.releases.downloads", tags: ["file=AppImage", "version=\(.release)", "arch=amd64"], value: .downloads, interval: .interval, time: .time}' input.json >> output.json
          jq -c 'select(.filename|endswith("_amd64.deb")) | {name: "github.releases.downloads", tags: ["file=deb", "version=\(.release)", "arch=amd64"], value: .downloads, interval: .interval, time: .time}' input.json >> output.json
          jq -c 'select(.filename|endswith("-x64.msi")) | {name: "github.releases.downloads", tags: ["file=msi", "version=\(.release)", "arch=amd64"], value: .downloads, interval: .interval, time: .time}' input.json >> output.json
          jq -c 'select(.filename|endswith("-x64.exe")) | {name: "github.releases.downloads", tags: ["file=exe", "version=\(.release)", "arch=amd64"], value: .downloads, interval: .interval, time: .time}' input.json >> output.json
          jq -c 'select(.filename|endswith("-arm64.dmg")) | {name: "github.releases.downloads", tags: ["file=dmg", "version=\(.release)", "arch=arm64"], value: .downloads, interval: .interval, time: .time}' input.json >> output.json
          jq -c 'select(.filename|endswith(".dmg")) | select(.filename|endswith("-arm64.dmg")|not) | {name: "github.releases.downloads", tags: ["file=dmg", "version=\(.release)", "arch=amd64"], value: .downloads, interval: .interval, time: .time}' input.json >> output.json

          RESULT=$(jq -s -c "." output.json)
          echo "::set-output name=result::${RESULT}"
        env:
          INTERVAL: 900
          JSON_DATA: ${{ steps.get-stats.outputs.result }}
      - name: Upload Results
        uses: fjogeleit/http-request-action@v1
        with:
          url: 'https://graphite-us-central1.grafana.net/metrics'
          method: 'POST'
          contentType: 'application/json'
          bearerToken: ${{ secrets.GRAFANA_GRAPHITE_TOKEN }}
          data: ${{ steps.transform-stats.outputs.result }}
        continue-on-error: true # currently there seems to be a problem with the metrics endpoint, failing every now and then