import { useState } from "react";

import Image from "next/image";
import Router, { useRouter } from "next/router";

import { mutate } from "swr";

// services
import userService from "services/user.service";
import workspaceService from "services/workspace.service";
// hooks
import useUserAuth from "hooks/use-user-auth";
// layouts
import DefaultLayout from "layouts/default-layout";
import { UserAuthorizationLayout } from "layouts/auth-layout/user-authorization-wrapper";
// components
import {
  InviteMembers,
  OnboardingCard,
  OnboardingLogo,
  UserDetails,
  Workspace,
} from "components/onboarding";
// ui
import { PrimaryButton, Spinner } from "components/ui";
// constant
import { ONBOARDING_CARDS } from "constants/workspace";
// types
import type { NextPage } from "next";
import { ICurrentUserResponse } from "types";
// fetch-keys
import { CURRENT_USER } from "constants/fetch-keys";

const Onboarding: NextPage = () => {
  const [step, setStep] = useState(1);
  const [userRole, setUserRole] = useState<string | null>(null);
  const [isLoading, setIsLoading] = useState(false);

  const [workspace, setWorkspace] = useState();

  const router = useRouter();

  const { user, mutateUser } = useUserAuth("onboarding");

  return (
    <UserAuthorizationLayout>
      <DefaultLayout>
        {isLoading ? (
          <div className="grid h-screen place-items-center">
            <Spinner />
          </div>
        ) : (
          <div className="relative grid h-full place-items-center p-5">
            {step <= 3 ? (
              <div className="h-full flex flex-col justify-center w-full py-4">
                <div className="mb-7 flex items-center justify-center text-center">
                  <OnboardingLogo className="h-12 w-48 fill-current text-brand-base" />
                </div>
                {step === 1 ? (
                  <UserDetails user={user} setStep={setStep} setUserRole={setUserRole} />
                ) : step === 2 ? (
                  <Workspace setStep={setStep} setWorkspace={setWorkspace} user={user} />
                ) : (
                  <InviteMembers setStep={setStep} workspace={workspace} user={user} />
                )}
              </div>
            ) : (
              <div className="flex w-full max-w-2xl flex-col gap-12">
                <div className="flex flex-col items-center justify-center gap-7 rounded-[10px] bg-brand-base pb-7 text-center shadow-md">
                  {step === 4 ? (
                    <OnboardingCard data={ONBOARDING_CARDS.welcome} />
                  ) : step === 5 ? (
                    <OnboardingCard data={ONBOARDING_CARDS.issue} gradient />
                  ) : step === 6 ? (
                    <OnboardingCard data={ONBOARDING_CARDS.cycle} gradient />
                  ) : step === 7 ? (
                    <OnboardingCard data={ONBOARDING_CARDS.module} gradient />
                  ) : (
                    <OnboardingCard data={ONBOARDING_CARDS.commandMenu} />
                  )}
                  <div className="mx-auto flex h-1/4 items-end lg:w-1/2">
                    <PrimaryButton
                      type="button"
                      className="flex w-full items-center justify-center text-center "
                      size="md"
                      onClick={() => {
                        if (step === 8) {
                          setIsLoading(true);
                          userService
                            .updateUserOnBoard({ userRole }, user)
                            .then(async () => {
                              mutate<ICurrentUserResponse>(
                                CURRENT_USER,
                                (prevData) => {
                                  if (!prevData) return prevData;

                                  return {
                                    ...prevData,
                                    user: {
                                      ...prevData.user,
                                      is_onboarded: true,
                                    },
                                  };
                                },
                                false
                              );
                              const userWorkspaces = await workspaceService.userWorkspaces();

                              const lastActiveWorkspace =
                                userWorkspaces.find(
                                  (workspace) => workspace.id === user?.last_workspace_id
                                ) ?? userWorkspaces[0];

                              if (lastActiveWorkspace) {
                                userService
                                  .updateUser({
                                    last_workspace_id: lastActiveWorkspace.id,
                                  })
                                  .then((res) => {
                                    mutateUser();
                                  })
                                  .catch((err) => {
                                    console.log(err);
                                  });
                                Router.push(`/${lastActiveWorkspace.slug}`);
                                return;
                              } else {
                                const invitations =
                                  await workspaceService.userWorkspaceInvitations();
                                if (invitations.length > 0) {
                                  Router.push(`/invitations`);
                                  return;
                                } else {
                                  Router.push(`/create-workspace`);
                                  return;
                                }
                              }
                            })
                            .catch((err) => {
                              setIsLoading(false);
                              console.log(err);
                            });
                        } else setStep((prevData) => prevData + 1);
                      }}
                    >
                      {step === 4 || step === 8 ? "Get Started" : "Next"}
                    </PrimaryButton>
                  </div>
                </div>
              </div>
            )}
            <div className="absolute flex flex-col gap-1 justify-center items-start left-5 top-5">
              <span className="text-xs text-brand-secondary">Logged in:</span>
              <span className="text-sm text-brand-base">{user?.email}</span>
            </div>
          </div>
        )}
      </DefaultLayout>
    </UserAuthorizationLayout>
  );
};

export default Onboarding;
