import { useState } from "react";

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

import useSWR from "swr";

// services
import workspaceService from "services/workspace.service";
// hooks
import useToast from "hooks/use-toast";
import useUser from "hooks/use-user";
// layouts
import { WorkspaceAuthorizationLayout } from "layouts/auth-layout";
import { SettingsHeader } from "components/workspace";
// components
import ConfirmWorkspaceMemberRemove from "components/workspace/confirm-workspace-member-remove";
import SendWorkspaceInvitationModal from "components/workspace/send-workspace-invitation-modal";
// ui
import { CustomMenu, CustomSelect, Loader } from "components/ui";
import { BreadcrumbItem, Breadcrumbs } from "components/breadcrumbs";
// icons
import { PlusIcon } from "@heroicons/react/24/outline";
// types
import type { NextPage } from "next";
// fetch-keys
import { WORKSPACE_DETAILS, WORKSPACE_INVITATIONS, WORKSPACE_MEMBERS } from "constants/fetch-keys";
// constants
import { ROLE } from "constants/workspace";

const MembersSettings: NextPage = () => {
  const [selectedRemoveMember, setSelectedRemoveMember] = useState<string | null>(null);
  const [selectedInviteRemoveMember, setSelectedInviteRemoveMember] = useState<string | null>(null);
  const [inviteModal, setInviteModal] = useState(false);

  const router = useRouter();
  const { workspaceSlug } = router.query;

  const { setToastAlert } = useToast();

  const { user } = useUser();

  const { data: activeWorkspace } = useSWR(
    workspaceSlug ? WORKSPACE_DETAILS(workspaceSlug.toString()) : null,
    () => (workspaceSlug ? workspaceService.getWorkspace(workspaceSlug.toString()) : null)
  );

  const { data: workspaceMembers, mutate: mutateMembers } = useSWR(
    workspaceSlug ? WORKSPACE_MEMBERS(workspaceSlug.toString()) : null,
    workspaceSlug ? () => workspaceService.workspaceMembers(workspaceSlug.toString()) : null
  );

  const { data: workspaceInvitations, mutate: mutateInvitations } = useSWR(
    workspaceSlug ? WORKSPACE_INVITATIONS : null,
    workspaceSlug ? () => workspaceService.workspaceInvitations(workspaceSlug.toString()) : null
  );

  const members = [
    ...(workspaceMembers?.map((item) => ({
      id: item.id,
      memberId: item.member?.id,
      avatar: item.member?.avatar,
      first_name: item.member?.first_name,
      last_name: item.member?.last_name,
      email: item.member?.email,
      role: item.role,
      status: true,
      member: true,
      accountCreated: true,
    })) || []),
    ...(workspaceInvitations?.map((item) => ({
      id: item.id,
      memberId: item.id,
      avatar: "",
      first_name: item.email,
      last_name: "",
      email: item.email,
      role: item.role,
      status: item.accepted,
      member: false,
      accountCreated: item?.accepted ? false : true,
    })) || []),
  ];

  const currentUser = workspaceMembers?.find((item) => item.member?.id === user?.id);

  return (
    <>
      <ConfirmWorkspaceMemberRemove
        isOpen={Boolean(selectedRemoveMember) || Boolean(selectedInviteRemoveMember)}
        onClose={() => {
          setSelectedRemoveMember(null);
          setSelectedInviteRemoveMember(null);
        }}
        data={
          selectedRemoveMember
            ? members.find((item) => item.id === selectedRemoveMember)
            : selectedInviteRemoveMember
            ? members.find((item) => item.id === selectedInviteRemoveMember)
            : null
        }
        handleDelete={async () => {
          if (!workspaceSlug) return;
          if (selectedRemoveMember) {
            await workspaceService.deleteWorkspaceMember(
              workspaceSlug as string,
              selectedRemoveMember
            );
            mutateMembers(
              (prevData) => prevData?.filter((item) => item.id !== selectedRemoveMember),
              false
            );
          }
          if (selectedInviteRemoveMember) {
            await workspaceService.deleteWorkspaceInvitations(
              workspaceSlug as string,
              selectedInviteRemoveMember
            );
            mutateInvitations(
              (prevData) => prevData?.filter((item) => item.id !== selectedInviteRemoveMember),
              false
            );
          }
          setToastAlert({
            type: "success",
            title: "Success",
            message: "Member removed successfully",
          });
          setSelectedRemoveMember(null);
          setSelectedInviteRemoveMember(null);
        }}
      />
      <SendWorkspaceInvitationModal
        isOpen={inviteModal}
        setIsOpen={setInviteModal}
        workspace_slug={workspaceSlug as string}
        members={members}
      />
      <WorkspaceAuthorizationLayout
        breadcrumbs={
          <Breadcrumbs>
            <BreadcrumbItem
              title={`${activeWorkspace?.name ?? "Workspace"}`}
              link={`/${workspaceSlug}`}
            />
            <BreadcrumbItem title="Members Settings" />
          </Breadcrumbs>
        }
      >
        <div className="p-8">
          <SettingsHeader />
          <section className="space-y-5">
            <div className="flex items-end justify-between gap-4">
              <h3 className="text-2xl font-semibold">Members</h3>
              <button
                type="button"
                className="flex items-center gap-2 text-brand-accent outline-none"
                onClick={() => setInviteModal(true)}
              >
                <PlusIcon className="h-4 w-4" />
                Add Member
              </button>
            </div>
            {!workspaceMembers || !workspaceInvitations ? (
              <Loader className="space-y-5">
                <Loader.Item height="40px" />
                <Loader.Item height="40px" />
                <Loader.Item height="40px" />
                <Loader.Item height="40px" />
              </Loader>
            ) : (
              <div className="divide-y divide-brand-base rounded-[10px] border border-brand-base bg-brand-base px-6">
                {members.length > 0
                  ? members.map((member) => (
                      <div key={member.id} className="flex items-center justify-between py-6">
                        <div className="flex items-center gap-x-8 gap-y-2">
                          <div className="relative flex h-10 w-10 items-center justify-center rounded-lg bg-gray-700 p-4 capitalize text-white">
                            {member.avatar && member.avatar !== "" ? (
                              <Image
                                src={member.avatar}
                                alt={member.first_name}
                                layout="fill"
                                objectFit="cover"
                                className="rounded-lg"
                              />
                            ) : member.first_name !== "" ? (
                              member.first_name.charAt(0)
                            ) : (
                              member.email.charAt(0)
                            )}
                          </div>
                          <div>
                            <h4 className="text-sm">
                              {member.first_name} {member.last_name}
                            </h4>
                            <p className="text-xs text-brand-secondary">{member.email}</p>
                          </div>
                        </div>
                        <div className="flex items-center gap-2 text-xs">
                          {!member?.status && (
                            <div className="mr-2 flex items-center justify-center rounded-full bg-yellow-500/20 px-2 py-1 text-center text-xs text-yellow-500">
                              <p>Pending</p>
                            </div>
                          )}
                          {member?.status && !member?.accountCreated && (
                            <div className="mr-2 flex items-center justify-center rounded-full bg-blue-500/20 px-2 py-1 text-center text-xs text-blue-500">
                              <p>Account not created</p>
                            </div>
                          )}
                          <CustomSelect
                            label={ROLE[member.role as keyof typeof ROLE]}
                            value={member.role}
                            onChange={(value: any) => {
                              if (!workspaceSlug) return;

                              mutateMembers(
                                (prevData) =>
                                  prevData?.map((m) =>
                                    m.id === member.id ? { ...m, role: value } : m
                                  ),
                                false
                              );

                              workspaceService
                                .updateWorkspaceMember(workspaceSlug?.toString(), member.id, {
                                  role: value,
                                })
                                .catch(() => {
                                  setToastAlert({
                                    type: "error",
                                    title: "Error!",
                                    message:
                                      "An error occurred while updating member role. Please try again.",
                                  });
                                });
                            }}
                            position="right"
                            disabled={
                              member.memberId === currentUser?.member.id ||
                              !member.status ||
                              (currentUser &&
                                currentUser.role !== 20 &&
                                currentUser.role < member.role)
                            }
                          >
                            {Object.keys(ROLE).map((key) => {
                              if (
                                currentUser &&
                                currentUser.role !== 20 &&
                                currentUser.role < parseInt(key)
                              )
                                return null;

                              return (
                                <CustomSelect.Option key={key} value={key}>
                                  <>{ROLE[parseInt(key) as keyof typeof ROLE]}</>
                                </CustomSelect.Option>
                              );
                            })}
                          </CustomSelect>
                          <CustomMenu ellipsis>
                            <CustomMenu.MenuItem
                              onClick={() => {
                                if (member.member) {
                                  setSelectedRemoveMember(member.id);
                                } else {
                                  setSelectedInviteRemoveMember(member.id);
                                }
                              }}
                            >
                              Remove member
                            </CustomMenu.MenuItem>
                          </CustomMenu>
                        </div>
                      </div>
                    ))
                  : null}
              </div>
            )}
          </section>
        </div>
      </WorkspaceAuthorizationLayout>
    </>
  );
};

export default MembersSettings;