name: Pending reviews automation
on:
    # We run it on a schedule instead of on pull_request_* events to not create confusing messaging in the PR
    schedule:
        - cron: "*/10 * * * *"
concurrency: ${{ github.workflow }}
jobs:
    bot:
        name: Pending reviews bot
        runs-on: ubuntu-latest
        environment: Matrix
        env:
            URL: "https://github.com/pulls?q=is%3Apr+is%3Aopen+repo%3Amatrix-org%2Fmatrix-js-sdk+repo%3Amatrix-org%2Fmatrix-react-sdk+repo%3Avector-im%2Felement-web+repo%3Avector-im%2Felement-desktop+review-requested%3A%40me+sort%3Aupdated-desc+"
            RELEASE_BLOCKERS_URL: "https://github.com/pulls?q=is%3Aopen+repo%3Amatrix-org%2Fmatrix-js-sdk+repo%3Amatrix-org%2Fmatrix-react-sdk+repo%3Avector-im%2Felement-web+repo%3Avector-im%2Felement-desktop+sort%3Aupdated-desc+label%3AX-Release-Blocker+"
        steps:
            - uses: actions/github-script@v6
              env:
                  HS_URL: ${{ secrets.BETABOT_HS_URL }}
                  ROOM_ID: ${{ secrets.ROOM_ID }}
                  TOKEN: ${{ secrets.BETABOT_ACCESS_TOKEN }}
              with:
                  # PAT needed as the GITHUB_TOKEN won't be able to see cross-references from other orgs (matrix-org)
                  github-token: ${{ secrets.ELEMENT_BOT_TOKEN }}
                  script: |
                      const { HS_URL, ROOM_ID, TOKEN, URL, RELEASE_BLOCKERS_URL } = process.env;

                      async function updateCounter(counter, link, severity, title, value, clearOnZero) {
                          const apiUrl = `${HS_URL}/_matrix/client/v3/rooms/${ROOM_ID}/state/re.jki.counter/${counter}`;
                          const headers = {
                              "Content-Type": "application/json",
                              "Authorization": `Bearer ${TOKEN}`,
                          };
                          const res = await fetch(apiUrl, {
                              method: "GET",
                              headers,
                          });

                          const data = await res.json();

                          if (data.value === issueCount) {
                              console.log("Pending review count already correct");
                              return;
                          }

                          let body = {};
                          if (issueCount || !clearOnZero) {
                              body = JSON.stringify({
                                  link,
                                  severity,
                                  title,
                                  value,
                              });
                          }

                          await fetch(apiUrl, {
                              method: "PUT",
                              body,
                              headers,
                          });
                      }

                      const repos = [
                          "vector-im/element-desktop",
                          "vector-im/element-web",
                          "matrix-org/matrix-react-sdk",
                          "matrix-org/matrix-js-sdk",
                      ];
                      const teams = [
                          "matrix-org/element-web-app-team",
                          "matrix-org/element-web",
                          "vector-im/element-web-app-team",
                          "vector-im/element-web",
                      ];

                      let issueCount = 0;
                      for (const team of teams) {
                          const org = team.split("/", 2)[0];
                          const reposInOrg = repos.filter(repo => repo.startsWith(org + "/"));
                          const { data } = await github.rest.search.issuesAndPullRequests({
                              q: `is:pr is:open review:required ${reposInOrg.map(r => `repo:${r}`).join(" ")} team-review-requested:${team}`,
                          });
                          issueCount += data.total_count;
                      }
                      await updateCounter("gh_reviews", URL, "warning", "Pending reviews", issueCount);

                      const { data } = await github.rest.search.issuesAndPullRequests({
                          q: `is:open ${repos.map(repo => `repo:${repo}`).join(" ")} label:X-Release-Blocker`,
                      });
                      const blockerCount = data.total_count;
                      await updateCounter("release_blockers", RELEASE_BLOCKERS_URL, "error", "Release Blockers", blockerCount, true);