import { DebugBuilder } from "../modules/debugger.mjs";
const log = new DebugBuilder("server", "socketServerWrappers");
import {
  createNode,
  getNodeByNuid,
  updateNodeByNuid,
} from "./mongo-wrappers/mongoNodesWrappers.mjs";
import {
  createSystem,
  getSystemByName,
  updateSystemByName,
  getSystemsByNuid,
  deleteSystemByName,
} from "./mongo-wrappers/mongoSystemsWrappers.mjs";

/**
 * Description
 * @param {any} socket
 * @param {any} command
 * @param {any} data
 * @returns {any}
 */
const sendNodeCommand = async (socket, command, data) => {
  // TODO - Check to see if the command exists
  // TODO - Check to see if the socket is alive?
  // TODO - Validate the given data
  socket.emit(command, data);
};

/**
 * Log the node into the network
 * @param {object} data The data sent from the node
 * @param {any} socket The socket the node is connected from
 * @returns {any}
 */
export const nodeLoginWrapper = async (data, socket) => {
  log.INFO(`Login requested from node: ${data.nuid}`, data);
  // Check to see if node exists
  var node = await getNodeByNuid(data.nuid);
  if (!node) {
    const insertedId = await createNode(data);
    log.DEBUG("Added new node to the database:", insertedId);
  } else {
    // Check for updates
    const updatedNode = await updateNodeByNuid(data.nuid, data);
    log.DEBUG("Updated node:", updatedNode);
  }

  node = await getNodeByNuid(data.nuid);

  // Add the socket/node connection
  socket.node = node;

  return;
};

/**
 * Disconnect the client from the server
 * @param {string} socketId The socket ID that was disconnected
 * @returns {any}
 */
export const nodeDisconnectWrapper = async (socketId) => {
  // TODO - Let any server know that a bot has disconnected if the bot was joined to vc? might not be worth cpu lol
  return;
};

/**
 * Update node data in the database
 * @param {object} nodeData The data object sent from the node
 * @returns {any}
 */
export const nodeUpdateWrapper = async (nodeData) => {
  log.DEBUG("Data update sent by node: ", nodeData);
  const updateResults = await updateNodeByNuid(nodeData.nuid, nodeData);
  return;
};

/**
 * Wrapper to update the systems from the nearbySystems object passed from clients
 * @param {string} nuid The NUID of the node that sent the update
 * @param {object} nearbySystems The nearby systems object passed from the node to be updated
 */
export const nearbySystemsUpdateWraper = async (nuid, nearbySystems) => {
  log.DEBUG("System updates sent by node: ", nuid, nearbySystems);
  // Check to see if the node removed any systems
  const existingSystems = await getSystemsByNuid(nuid);
  log.DEBUG("Existing systems:", existingSystems);
  if (existingSystems !== nearbySystems) {
    for (const existingSystem of existingSystems) {
      if (existingSystem.name in nearbySystems) {
        // Skip this system if it's in the given systems update
        continue;
      }

      log.DEBUG("System exists that was not given by node", existingSystem);
      // Check if this node was the only node on this system
      if (existingSystem.nodes.filter((node) => node !== nuid).length === 0) {
        // Remove the system if so
        log.INFO(
          "Given node was the only node on this system, removing the system...",
        );
        await deleteSystemByName(existingSystem.name);
      } else {
        // Remove the node from the array if there are other nodes with this system
        log.INFO("Other nodes found on this system, removing the given NUID");
        existingSystem.nodes = existingSystem.nodes.filter(
          (node) => node !== nuid,
        );
        log.DEBUG(existingSystem);
        await updateSystemByName(existingSystem.name, existingSystem);
      }
    }
  }

  // Add and update the given systems
  for (const nearbySystem in nearbySystems) {
    // Check if the system exists already on another node
    const existingSystem = await getSystemByName(nearbySystem);
    if (existingSystem) {
      // Verify the frequencies match (to make sure the name isn't just the same)
      if (
        JSON.stringify(existingSystem.frequencies) ===
        JSON.stringify(nearbySystems[nearbySystem].frequencies)
      ) {
        // The systems are the same

        // Check if the current node is listed in the nodes, if not add it
        if (!existingSystem.nodes.includes(nuid)) {
          existingSystem.nodes.push(nuid);
          // Update the system with the added node
          const updateResults = await updateSystemByName(
            nearbySystem,
            existingSystem,
          );
          if (updateResults) log.INFO("System updated", nearbySystem);
        }
      } else {
        // The systems are not the same
        // TODO - Implement logic to handle if system names match, but they are for different frequencies or have additional freqs

        // Check if the current node is listed in the nodes, if not add it
        if (!existingSystem.nodes.includes(nuid)) {
          existingSystem.nodes.push(nuid);
          nearbySystems[nearbySystem].nodes = existingSystem.nodes;
        }

        // Update the system with the added node
        const updateResults = await updateSystemByName(
          nearbySystem,
          nearbySystems[nearbySystem],
        );
        if (updateResults) log.INFO("System updated", nearbySystem);
      }
    } else {
      // Create a new system
      const newSystem = await createSystem(
        nearbySystem,
        nearbySystems[nearbySystem],
        nuid,
      );
      log.INFO("New system created", nearbySystem, newSystem);
    }
  }
  return;
};

/**
 * Get the open socket connection ID for a node from the NUID
 * @param {string} nuid The NUID to find within the open sockets
 * @returns {string|null} Will return the open socket ID or NULL
 */
export const getSocketIdByNuid = async (nodeIo, nuid) => {
  const openSockets = await nodeIo.allSockets();
  for (const openSocketId of openSockets) {
    log.DEBUG(openSockets);
    const openSocket = await nodeIo.sockets.sockets.get(openSocketId);
    if (openSocket.node.nuid == nuid) return openSocket;
  }
  return null;
};

/**
 * Get all nodes that are connected to a voice channel
 * @param {any} nodeIo The nodeIo object that contains the IO server
 * @param {string} guildId The guild ID string for the guild we are looking in
 * @returns {Array} The sockets connected to VC in a given server
 */
export const getAllSocketsConnectedToVC = async (nodeIo, guildId) => {
  // Get all open socket nodes
  // TODO - require a server guild to filter the results, ie this would be able to check what server the VCs the nodes are connected are in
  const openSockets = [...(await nodeIo.allSockets())]; // TODO - Filter the returned nodes to only nodes that have the radio capability
  // Check each open socket to see if the node has the requested system
  const socketsConnectedToVC = [];
  await Promise.all(
    openSockets.map(async (openSocket) => {
      openSocket = await nodeIo.sockets.sockets.get(openSocket);
      await new Promise((res) => {
        openSocket.emit("node-check-connected-status", guildId, (status) => {
          if (status) {
            log.INFO(
              "Socket is connected to VC:",
              openSocket.node.name,
              status,
            );
            socketsConnectedToVC.push(openSocket);
          } else {
            log.INFO("Socket is NOT connected to VC:", openSocket.node.name);
          }
          res();
        });
      });
    }),
  );

  return socketsConnectedToVC;
};

/**
 * Check if the given node has an open discord client
 * @param {any} openSocket The open socket connection with the node to check
 * @returns {boolean} If the given node has an open discord client or not
 */
export const checkIfNodeHasOpenDiscordClient = async (openSocket) => {
  // Check the open socket to see if the node has an open discord client
  let hasOpenDiscordClient = false;
  await new Promise((res) => {
    log.INFO(
      "Checking if socket has an open connection:",
      openSocket.node.name,
    );
    openSocket.emit("node-check-discord-open-client", (status) => {
      if (status) {
        log.INFO(
          "Socket has an open discord client:",
          openSocket.node.name,
          status,
        );
        hasOpenDiscordClient = true;
      } else {
        log.INFO(
          "Socket does NOT have an open discord client:",
          openSocket.node.name,
        );
      }
      res();
    });
  });

  return hasOpenDiscordClient;
};

export const getNodeCurrentListeningSystem = async (openSocket) => {
  const hasOpenClient = checkIfNodeHasOpenDiscordClient(openSocket);
  if (!hasOpenClient) return undefined;

  // check what system the socket is listening to
  let currentSystem = undefined;
  await new Promise((res) => {
    log.INFO(
      "Checking system node is currently listening to:",
      openSocket.node.name,
    );
    openSocket.emit("node-check-current-system", (system) => {
      if (system) {
        log.INFO(
          "Socket is listening to system:",
          openSocket.node.name,
          system,
        );
        currentSystem = system;
      } else {
        log.INFO(
          "Socket is not currently listening to a system:",
          openSocket.node.name,
        );
      }
      res();
    });
  });

  return currentSystem;
};

/**
 * Wrapper to check if the given NUID is connected to a VC
 * @param {any} nodeIo The nodeIo object that contains the IO server
 * @param {string} nuid The NUID string that we would like to find in the open socket connections
 * @returns {boolean} If the node is connected to VC in the given server
 */
export const checkIfNodeIsConnectedToVC = async (nodeIo, guildId, nuid) => {
  const socketsConnectedToVC = await getAllSocketsConnectedToVC(
    nodeIo,
    guildId,
  );
  for (const socket of socketsConnectedToVC) {
    if (socket.node.nuid === nuid) {
      return true;
    }
  }
  return false;
};

/**
 * Get the discord username from a given socket
 * @param {any} socket The socket object of the node to check the username of
 * * @param {string} guildId The guild ID to check the username in
 * @returns {string} The username of the bot in the requested server
 */
export const getNodeDiscordUsername = async (socket, guildId) => {
  return await new Promise((res) => {
    socket.emit("node-get-discord-username", guildId, (username) => {
      res(username);
    });
  });
};

/**
 * Get the discord ID from a given socket
 * @param {any} socket The socket object of the node to check the ID of
 * @returns {string} The ID of the bot
 */
export const getNodeDiscordID = async (socket) => {
  return await new Promise((res) => {
    socket.emit("node-get-discord-id", (discordID) => {
      res(discordID);
    });
  });
};

/**
 * Request a given socket node to join a given voice channel
 * @param {any} socket The socket object of the node the request should be sent to
 * @param {any} systemName The system preset name that we would like to listen to
 * @param {string} discordChanelId The Discord channel ID to join the listening bot to
 */
export const requestNodeJoinSystem = async (
  socket,
  systemName,
  discordChanelId,
  discordToken = "MTE5NjAwNTM2ODYzNjExMjk3Nw.GuCMXg.24iNNofNNumq46FIj68zMe9RmQgugAgfrvelEA",
) => {
  // Join the system
  const joinData = {
    clientID: discordToken,
    channelID: discordChanelId,
    system: systemName,
  };
  // Send the command to the node
  await sendNodeCommand(socket, "node-join", joinData);
};

/**
 * Request a given socket node to leave VC in a given server
 * @param {any} socket The socket object of the node the request should be sent to
 * @param {string} guildId The guild ID to disconnect the socket node from
 */
export const requestBotLeaveServer = async (socket, guildId) => {
  // Send the command to the node
  await sendNodeCommand(socket, "node-leave", guildId);
};

/**
 * Requset a given socket node to update themselves
 * @param {any} socket The socket object of the node to request to update
 */
export const requestNodeUpdate = async (socket) => {
  await sendNodeCommand(socket, "node-update", (status) => {
    if (status) {
      log.INFO("Node is out of date, updating now", socket.node.name);
    } else {
      log.INFO("Node is up to date", socket.node.name);
    }
  });
};