import { setUserMetadata, superTokensFunctionMiddleware, getSessionContext } from "@/utils/supertokens";
import { createServerFn } from "@tanstack/react-start";
import { Player, playerInputSchema, playerUpdateSchema, PlayerStats } from "@/features/players/types";
import { Match } from "@/features/matches/types";
import { pbAdmin } from "@/lib/pocketbase/client";
import { z } from "zod";
import { logger } from ".";
import { getRequest } from "@tanstack/react-start/server";
import { toServerResult } from "@/lib/tanstack-query/utils/to-server-result";
import { serverFnLoggingMiddleware } from "@/utils/activities";

export const fetchMe = createServerFn()
  .handler(async () =>
    toServerResult(async () => {
      const request = getRequest();

      try {
        const context = await getSessionContext(request);

        await pbAdmin.authPromise;
        const result = await pbAdmin.getPlayerByAuthId(context.userAuthId);
        return {
          user: result || undefined,
          roles: context.roles,
          metadata: context.metadata,
          phone: context.phone
        };
      } catch (error: any) {
        logger.info("FetchMe: Error caught", {
          message: error?.message,
          isResponse: error instanceof Response,
          status: error instanceof Response ? error.status : error?.response?.status
        });

        if (error instanceof Response) {
          const status = error.status;
          if (status === 440) {
            logger.info("FetchMe: Session refresh required (440)");
            throw error;
          }
        }

        if (error?.response?.status === 440 || error?.response?.status === 401) {
          const errorData = error?.response?.data;
          if (errorData?.error === "SESSION_REFRESH_REQUIRED") {
            logger.info("FetchMe: Session refresh required (legacy)");
            throw error;
          }
        }

        if (error?.message === "Unauthenticated") {
          logger.info("FetchMe: No authenticated user (expected when not logged in)");
          return { user: undefined, roles: [], metadata: {}, phone: undefined };
        }

        logger.warn("FetchMe: Unexpected error, returning default", error);
        return { user: undefined, roles: [], metadata: {}, phone: undefined };
      }
    })
  );

export const getPlayer = createServerFn()
  .inputValidator(z.string())
  .middleware([superTokensFunctionMiddleware])
  .handler(async ({ data }) => 
    toServerResult<Player>(async () => await pbAdmin.getPlayer(data))
  );

export const updatePlayer = createServerFn()
  .inputValidator(playerUpdateSchema)
  .middleware([superTokensFunctionMiddleware, serverFnLoggingMiddleware])
  .handler(async ({ context, data }) => 
    toServerResult(async () => {
      const userAuthId = context.userAuthId;
      if (!userAuthId) return;

      const existing = await pbAdmin.getPlayerByAuthId(userAuthId);
      if (!existing) return;

      const updatedPlayer = await pbAdmin.updatePlayer(
        existing.id!,
        {
          first_name: data.first_name,
          last_name: data.last_name
        }
      );

      logger.info('Updated player name', updatedPlayer);

      await setUserMetadata({ data: { first_name: data.first_name, last_name: data.last_name } });

      return updatedPlayer;
    })
  );

export const createPlayer = createServerFn()
  .inputValidator(playerInputSchema)
  .middleware([superTokensFunctionMiddleware])
  .handler(async ({ context, data }) => 
    toServerResult(async () => {
      const userAuthId = context.userAuthId;
      if (!userAuthId) return;

      const existing = await pbAdmin.getPlayerByAuthId(userAuthId);
      if (existing) return;

      logger.info('Creating player', data, userAuthId);

      const newPlayer = await pbAdmin.createPlayer({
        auth_id: userAuthId,
        first_name: data.first_name,
        last_name: data.last_name
      });

      await setUserMetadata({ data: { first_name: data.first_name, last_name: data.last_name, player_id: newPlayer?.id?.toString() } });
      logger.info('Created player', newPlayer);
      return newPlayer;
    })
  );

export const associatePlayer = createServerFn()
  .inputValidator(z.string())
  .middleware([superTokensFunctionMiddleware, serverFnLoggingMiddleware])
  .handler(async ({ context, data }) => 
    toServerResult(async () => {
      const userAuthId = context.userAuthId;
      if (!userAuthId) return;

      const p = await pbAdmin.getPlayer(data);

      await pbAdmin.updatePlayer(data, {
        auth_id: userAuthId
      });

      await setUserMetadata({ data: { 
        player_id: data, 
        first_name: p?.first_name,
        last_name: p?.last_name
      }});

      const player = await pbAdmin.getPlayer(data);
      logger.info('Associated player', player);
      return player;
    })
  );

export const listPlayers = createServerFn()
  .middleware([superTokensFunctionMiddleware])
  .handler(async () => 
    toServerResult(pbAdmin.listPlayers)
  );

export const getUnassociatedPlayers = createServerFn()
  .middleware([superTokensFunctionMiddleware])
  .handler(async () => 
    toServerResult(pbAdmin.getUnassociatedPlayers)
  );

export const getPlayerStats = createServerFn()
  .inputValidator(z.object({
    playerId: z.string(),
    viewType: z.enum(['all', 'mainline', 'regional']).optional()
  }))
  .middleware([superTokensFunctionMiddleware])
  .handler(async ({ data }) =>
    toServerResult<PlayerStats>(async () => await pbAdmin.getPlayerStats(data.playerId, data.viewType))
  );

export const getAllPlayerStats = createServerFn()
  .inputValidator(z.enum(['all', 'mainline', 'regional']).optional())
  .middleware([superTokensFunctionMiddleware])
  .handler(async ({ data }) =>
    toServerResult<PlayerStats[]>(async () => await pbAdmin.getAllPlayerStats(data))
  );

export const getPlayerMatches = createServerFn()
  .inputValidator(z.string())
  .middleware([superTokensFunctionMiddleware])
  .handler(async ({ data }) =>
    toServerResult<Match[]>(async () => await pbAdmin.getPlayerMatches(data))
  );

export const getUnenrolledPlayers = createServerFn()
  .inputValidator(z.string())
  .middleware([superTokensFunctionMiddleware])
  .handler(async ({ data: tournamentId }) =>
    toServerResult(async () => await pbAdmin.getUnenrolledPlayers(tournamentId))
  );

export const getPlayersActivity = createServerFn()
  .middleware([superTokensFunctionMiddleware])
  .handler(async () =>
    toServerResult<Player[]>(async () => await pbAdmin.getPlayersActivity())
  );