import { useState } from "react";
import { useNavigate } from "react-router-dom";
import { authService } from "../api/auth.service";
import { useApi } from "@/shared/api/hooks/use.api";
import type {
  LoginCredentials,
  RegisterData,
  OrganizationCreateData,
} from "../types/auth.types";

export const useAuth = () => {
  const navigate = useNavigate();
  const { isLoading, error, request } = useApi();
  const [authError, setAuthError] = useState<string | null>(null);

  const login = async (credentials: LoginCredentials) => {
    setAuthError(null);
    const result = await request(() => authService.login(credentials));

    if (result) {
      authService.saveAuthData(result.access_token, result.user);

      const orgs = await request(() => authService.getOrganizations());
      if (orgs && orgs.length > 0) {
        authService.saveOrganization(orgs[0]);
        navigate("/");
      } else {
        navigate("/create-organization");
      }
    } else if (error) {
      setAuthError(error);
    }
  };

  const register = async (data: RegisterData) => {
    setAuthError(null);

    if (data.password !== data.confirmPassword) {
      setAuthError("Пароли не совпадают");
      return;
    }

    const { confirmPassword, ...registerData } = data;
    const result = await request(() => authService.register(registerData));

    if (result) {
      authService.saveAuthData(result.access_token, result.user);
      navigate("/create-organization");
    } else if (error) {
      setAuthError(error);
    }
  };

  const createOrganization = async (data: OrganizationCreateData) => {
    setAuthError(null);
    const result = await request(() => authService.createOrganization(data));

    if (result) {
      authService.saveOrganization(result);
      navigate("/");
    } else if (error) {
      setAuthError(error);
    }
  };

  const logout = () => {
    authService.logout();
    navigate("/");
  };

  return {
    login,
    register,
    createOrganization,
    logout,
    isLoading,
    error: authError,
    isAuthenticated: authService.isAuthenticated(),
    hasOrganization: authService.hasOrganization(),
  };
};