import React from "react";
import { useRouter } from "next/router";
import Link from "next/link";

import useSWR, { mutate } from "swr";
// services
import { ProjectService } from "services/project";
import { TrackEventService, MiscellaneousEventType } from "services/track_event.service";
// layouts
import { ProjectAuthorizationWrapper } from "layouts/auth-layout-legacy";
// hooks
import useToast from "hooks/use-toast";
import useUserAuth from "hooks/use-user-auth";
// components
import { SettingsSidebar } from "components/project";
// ui
import { BreadcrumbItem, Breadcrumbs, ContrastIcon, DiceIcon, ToggleSwitch } from "@plane/ui";
// icons
import { FileText, Inbox, Layers } from "lucide-react";
// types
import { IProject, IUser } from "types";
import type { NextPage } from "next";
// fetch-keys
import { PROJECTS_LIST, PROJECT_DETAILS, USER_PROJECT_VIEW } from "constants/fetch-keys";
// helper
import { truncateText } from "helpers/string.helper";

const featuresList = [
  {
    title: "Cycles",
    description: "Cycles are enabled for all the projects in this workspace. Access them from the sidebar.",
    icon: <ContrastIcon className="h-4 w-4 text-purple-500 flex-shrink-0 rotate-180" />,

    property: "cycle_view",
  },
  {
    title: "Modules",
    description: "Modules are enabled for all the projects in this workspace. Access it from the sidebar.",
    icon: <DiceIcon width={16} height={16} className="flex-shrink-0" />,
    property: "module_view",
  },
  {
    title: "Views",
    description: "Views are enabled for all the projects in this workspace. Access it from the sidebar.",
    icon: <Layers className="h-4 w-4 text-cyan-500 flex-shrink-0" />,
    property: "issue_views_view",
  },
  {
    title: "Pages",
    description: "Pages are enabled for all the projects in this workspace. Access it from the sidebar.",
    icon: <FileText className="h-4 w-4 text-red-400 flex-shrink-0" />,
    property: "page_view",
  },
  {
    title: "Inbox",
    description: "Inbox are enabled for all the projects in this workspace. Access it from the issues views page.",
    icon: <Inbox className="h-4 w-4 text-fuchsia-500 flex-shrink-0" />,
    property: "inbox_view",
  },
];

const getEventType = (feature: string, toggle: boolean): MiscellaneousEventType => {
  switch (feature) {
    case "Cycles":
      return toggle ? "TOGGLE_CYCLE_ON" : "TOGGLE_CYCLE_OFF";
    case "Modules":
      return toggle ? "TOGGLE_MODULE_ON" : "TOGGLE_MODULE_OFF";
    case "Views":
      return toggle ? "TOGGLE_VIEW_ON" : "TOGGLE_VIEW_OFF";
    case "Pages":
      return toggle ? "TOGGLE_PAGES_ON" : "TOGGLE_PAGES_OFF";
    case "Inbox":
      return toggle ? "TOGGLE_INBOX_ON" : "TOGGLE_INBOX_OFF";
    default:
      throw new Error("Invalid feature");
  }
};

// services
const projectService = new ProjectService();
const trackEventService = new TrackEventService();

const FeaturesSettings: NextPage = () => {
  const router = useRouter();
  const { workspaceSlug, projectId } = router.query;

  const { user } = useUserAuth();

  const { setToastAlert } = useToast();

  const { data: projectDetails } = useSWR(
    workspaceSlug && projectId ? PROJECT_DETAILS(projectId as string) : null,
    workspaceSlug && projectId ? () => projectService.getProject(workspaceSlug as string, projectId as string) : null
  );

  const { data: memberDetails } = useSWR(
    workspaceSlug && projectId ? USER_PROJECT_VIEW(projectId.toString()) : null,
    workspaceSlug && projectId
      ? () => projectService.projectMemberMe(workspaceSlug.toString(), projectId.toString())
      : null
  );

  const handleSubmit = async (formData: Partial<IProject>) => {
    if (!workspaceSlug || !projectId || !projectDetails) return;

    mutate<IProject[]>(
      PROJECTS_LIST(workspaceSlug.toString(), {
        is_favorite: "all",
      }),
      (prevData) => prevData?.map((p) => (p.id === projectId ? { ...p, ...formData } : p)),
      false
    );

    mutate<IProject>(
      PROJECT_DETAILS(projectId as string),
      (prevData) => {
        if (!prevData) return prevData;

        return { ...prevData, ...formData };
      },
      false
    );

    setToastAlert({
      type: "success",
      title: "Success!",
      message: "Project feature updated successfully.",
    });

    await projectService.updateProject(workspaceSlug as string, projectId as string, formData, user).catch(() =>
      setToastAlert({
        type: "error",
        title: "Error!",
        message: "Project feature could not be updated. Please try again.",
      })
    );
  };

  const isAdmin = memberDetails?.role === 20;

  return (
    <ProjectAuthorizationWrapper
      breadcrumbs={
        <Breadcrumbs onBack={() => router.back()}>
          <BreadcrumbItem
            link={
              <Link href={`/${workspaceSlug}/projects/${projectDetails?.id}/issues`}>
                <a className={`border-r-2 border-custom-sidebar-border-200 px-3 text-sm `}>
                  <p className="truncate">{`${truncateText(projectDetails?.name ?? "Project", 32)}`}</p>
                </a>
              </Link>
            }
          />
          <BreadcrumbItem title="Features Settings" unshrinkTitle />
        </Breadcrumbs>
      }
    >
      <div className="flex flex-row gap-2 h-full">
        <div className="w-80 pt-8 overflow-y-hidden flex-shrink-0">
          <SettingsSidebar />
        </div>
        <section className={`pr-9 py-8 w-full overflow-y-auto ${isAdmin ? "" : "opacity-60"}`}>
          <div className="flex items-center py-3.5 border-b border-custom-border-200">
            <h3 className="text-xl font-medium">Features</h3>
          </div>
          <div>
            {featuresList.map((feature) => (
              <div
                key={feature.property}
                className="flex items-center justify-between gap-x-8 gap-y-2 border-b border-custom-border-200 bg-custom-background-100 p-4"
              >
                <div className="flex items-start gap-3">
                  <div className="flex items-center justify-center p-3 rounded bg-custom-background-90">
                    {feature.icon}
                  </div>
                  <div className="">
                    <h4 className="text-sm font-medium">{feature.title}</h4>
                    <p className="text-sm text-custom-text-200 tracking-tight">{feature.description}</p>
                  </div>
                </div>
                <ToggleSwitch
                  value={projectDetails?.[feature.property as keyof IProject]}
                  onChange={() => {
                    trackEventService.trackMiscellaneousEvent(
                      {
                        workspaceId: (projectDetails?.workspace as any)?.id,
                        workspaceSlug,
                        projectId,
                        projectIdentifier: projectDetails?.identifier,
                        projectName: projectDetails?.name,
                      },
                      getEventType(feature.title, !projectDetails?.[feature.property as keyof IProject]),
                      user as IUser
                    );
                    handleSubmit({
                      [feature.property]: !projectDetails?.[feature.property as keyof IProject],
                    });
                  }}
                  disabled={!isAdmin}
                  size="sm"
                />
              </div>
            ))}
          </div>
        </section>
      </div>
    </ProjectAuthorizationWrapper>
  );
};

export default FeaturesSettings;