import { Authorizer } from "@authorizerdev/authorizer-js";
import { Server } from "@hocuspocus/server";
import Sentry from "@sentry/node";

Sentry.init({ dsn: process.env.GLITCHTIP_DSN });
console.info("sentry initialized");

const port = process.env.PORT || 4000;
const authorizer = new Authorizer({
  clientID: process.env.AUTHORIZER_CLIENT_ID || "",
  authorizerURL: process.env.AUTHORIZER_URL || "https://auth.discours.io",
  redirectURL: process.env.REDIRECT_URL || "https://testing.discours.io",
});
console.info("authorizer initialized");
console.debug(authorizer.config.extraHeaders);

const startServer = async () => {
  console.info("Starting server...");
  const server = await Server.configure({
    port: process.env.PORT || 4000,
    async onConnect({ connection }) {
      connection.requiresAuthentication = true;
    },
    onAuthenticate(data) {
      return new Promise((resolve, reject) => {
        const headers = data.requestHeaders;
        if (!headers) {
          console.error("Request headers not found");
          return reject(new Error("Required header is not present"));
        }

        const shout_id = parseInt(data.documentName.replace("shout-", ""), 10);
        console.debug(`shout_id extracted: ${shout_id}`);

        const token = data.token || headers["authorization"] || "";
        if (!token) {
          console.error("Authorization token not found");
          return reject(new Error("Token is not found"));
        }

        authorizer
          .validateJWTToken({ token_type: "access_token", token })
          .then((response) => {
            if (!response?.data?.is_valid) {
              console.error("Invalid authorization token");
              return reject(new Error("Token is invalid"));
            }

            const { sub: user, allowed_roles: roles } = response.data.claims;
            console.debug(`user: ${user} roles: ${roles}`);

            if (roles.includes("editor")) {
              return resolve({
                id: user,
                roles: Array.isArray(roles) ? roles : roles.split(","),
              });
            }

            fetch("https://core.discours.io/", {
              method: "POST",
              headers: { "Content-Type": "application/json" },
              body: JSON.stringify({
                query: `
                  query {
                      get_author_id(user: "${user}") {
                          id
                          slug
                          user
                      }
                  }
              `,
              }),
            })
              .then((res) => res.json())
              .then(({ data }) => {
                // console.debug(data)
                const { id: author_id } = data.get_author_id;
                if (author_id) {
                  fetch("https://core.discours.io/", {
                    method: "POST",
                    headers: { "Content-Type": "application/json" },
                    body: JSON.stringify({
                      query: `query {
                                                    get_shout(shout_id: ${shout_id}) {
                                                        id
                                                        slug
                                                        authors { id }
                                                    }
                                                }
                                            `,
                    }),
                  })
                    .then((res) => res.json())
                    .then(({ data }) => {
                      // console.debug('shout data:', data)
                      const { authors } = data.get_shout;
                      if (authors.some((author) => author.id === author_id)) {
                        return resolve({
                          id: user,
                          roles: Array.isArray(roles)
                            ? roles
                            : roles.split(","),
                        });
                      }
                      return reject(new Error("User is not in authors list"));
                    })
                    .catch((e) => {
                      console.error("Error fetching shout data:", e.message);
                      console.error(e.stack);
                      return reject(new Error("Error fetching shout data"));
                    });
                }
              })
              .catch((e) => {
                console.error("Error fetching author data:", e.message);
                console.error(e.stack);
                return reject(new Error("Error fetching author data"));
              });
          })
          .catch((e) => {
            console.error("Error validating authorization token:", e.message);
            console.error(e.stack);
            return reject(new Error("Error validating authorization token"));
          });
      });
    },
  });
  server.listen();
};

process.on("unhandledRejection", (reason, promise) => {
  Sentry.captureException(reason);
});

process.on("uncaughtException", (error) => {
  Sentry.captureException(error);
});

startServer();