import { defineStore } from "pinia";
import { io, type Socket } from "socket.io-client";
import { useNotificationStore } from "../../notification";
import { refreshToken, url } from "../../../serverCom";

export const useConnectionStore = defineStore("connection", {
  state: () => {
    return {
      connection: undefined as undefined | Socket,
    };
  },
  getters: {
    connectionStatus: (state) => !!state.connection,
  },
  actions: {
    connectClient(): void {
      if (this.connectionStatus) return;
      const notificationStore = useNotificationStore();
      this.connection?.disconnect();
      this.connection = io(url, {
        reconnection: true,
        reconnectionDelayMax: 10000,
        auth: (cb) => {
          cb({ token: localStorage.getItem("accessToken") });
        },
      });

      this.connection.on("connect", () => {
        notificationStore.push("Socket-Erfolg", `Verbindung aufgebaut`, "success");
      });
      this.connection.on("connect_error", (err) => {
        this.handleError(err, true);
      });
      this.connection.on("disconnecting", () => {
        this.connection?.disconnect();
      });
      this.connection.on("disconnect", () => {
        this.$reset();
      });
      this.connection.on("warning", (msg: string) => {
        notificationStore.push("Socket-Warnung", msg, "warning");
      });
      this.connection.on("error", (msg: string) => {
        this.handleError({
          name: "Error",
          message: msg,
        });
      });
      this.connection.on("reconnect", (attemptNumber) => {
        notificationStore.push("Socket-Reconnect", `Reconnect erfolgreich`, "success");
      });
      this.connection.on("reconnect_attempt", (attemptNumber) => {
        notificationStore.push("Socket-Reconnect-Versuch", `Reconnect-Versuch Nr.${attemptNumber}`, "info");
      });
      this.connection.on("reconnect_error", (error) => {
        notificationStore.push("Socket-Warnung", "Reconnect fehlgeschlagen", "warning");
      });
      this.connection.on("reconnect_failed", () => {
        notificationStore.push("Socket-Fehler", "Reconnect-Versuche erfolglos beendet", "error");
      });
    },
    disconnectClient(): void {
      this.connection?.disconnect();
    },
    handleError(err: Error, onConnect = false) {
      const notificationStore = useNotificationStore();

      if (err.message == "xhr poll error") {
        notificationStore.push("Socket-Netzwerk-Fehler", "Reconnect Versuch in 10s", "error");
      } else if (err.message == "Token expired") {
        notificationStore.push("Session", "Session wird verlängert", "info");
        refreshToken()
          .then(() => {
            notificationStore.push("Session", "Session erfolgreich verlängert", "success");
            this.connection?.disconnect().connect();
          })
          .catch(() => {
            notificationStore.push("Session-Fehler", "Anmeldung wurde nicht verlängert", "error");
          });
      } else if (onConnect) {
        notificationStore.push("Socket-Fehler", `Verbindung fehlgeschlagen`, "error");
      } else {
        notificationStore.push("Socket-Fehler", err.message, "error");
      }
    },
  },
});