import { isDesktop, isIOS, isMobile } from "react-device-detect";
import {
  Sheet,
  SheetContent,
  SheetDescription,
  SheetHeader,
  SheetTitle,
} from "../../ui/sheet";
import useSWR from "swr";
import { FrigateConfig } from "@/types/frigateConfig";
import { useFormattedTimestamp } from "@/hooks/use-date-utils";
import { getIconForLabel } from "@/utils/iconUtil";
import { useApiHost } from "@/api";
import { ReviewDetailPaneType, ReviewSegment } from "@/types/review";
import { Event } from "@/types/event";
import { useCallback, useEffect, useMemo, useRef, useState } from "react";
import { cn } from "@/lib/utils";
import { FrigatePlusDialog } from "../dialog/FrigatePlusDialog";
import ObjectLifecycle from "./ObjectLifecycle";
import Chip from "@/components/indicators/Chip";
import { FaDownload, FaImages, FaShareAlt } from "react-icons/fa";
import FrigatePlusIcon from "@/components/icons/FrigatePlusIcon";
import { FaArrowsRotate } from "react-icons/fa6";
import {
  Tooltip,
  TooltipContent,
  TooltipTrigger,
} from "@/components/ui/tooltip";
import { useNavigate } from "react-router-dom";
import { Button } from "@/components/ui/button";
import { baseUrl } from "@/api/baseUrl";
import { shareOrCopy } from "@/utils/browserUtil";
import {
  MobilePage,
  MobilePageContent,
  MobilePageDescription,
  MobilePageHeader,
  MobilePageTitle,
} from "@/components/mobile/MobilePage";
import { useOverlayState } from "@/hooks/use-overlay-state";
import { DownloadVideoButton } from "@/components/button/DownloadVideoButton";
import { TooltipPortal } from "@radix-ui/react-tooltip";
import { LuSearch } from "react-icons/lu";
import useKeyboardListener from "@/hooks/use-keyboard-listener";
import { Trans, useTranslation } from "react-i18next";

type ReviewDetailDialogProps = {
  review?: ReviewSegment;
  setReview: (review: ReviewSegment | undefined) => void;
};
export default function ReviewDetailDialog({
  review,
  setReview,
}: ReviewDetailDialogProps) {
  const { t } = useTranslation(["views/explore"]);
  const { data: config } = useSWR<FrigateConfig>("config", {
    revalidateOnFocus: false,
  });

  const navigate = useNavigate();

  // upload

  const [upload, setUpload] = useState<Event>();

  // data

  const { data: events } = useSWR<Event[]>(
    review ? ["event_ids", { ids: review.data.detections.join(",") }] : null,
  );

  const hasMismatch = useMemo(() => {
    if (!review || !events) {
      return false;
    }

    return events.length != review?.data.detections.length;
  }, [review, events]);

  const missingObjects = useMemo(() => {
    if (!review || !events) {
      return [];
    }

    const detectedIds = review.data.detections;
    const missing = Array.from(
      new Set(
        events
          .filter((event) => !detectedIds.includes(event.id))
          .map((event) => event.label),
      ),
    );

    return missing;
  }, [review, events]);

  const formattedDate = useFormattedTimestamp(
    review?.start_time ?? 0,
    config?.ui.time_format == "24hour"
      ? t("time.formattedTimestampWithYear.24hour", { ns: "common" })
      : t("time.formattedTimestampWithYear.12hour", { ns: "common" }),
    config?.ui.timezone,
  );

  // content

  const [selectedEvent, setSelectedEvent] = useState<Event>();
  const [pane, setPane] = useState<ReviewDetailPaneType>("overview");

  // dialog and mobile page

  const [isOpen, setIsOpen] = useOverlayState(
    "reviewPane",
    review != undefined,
  );

  const handleOpenChange = useCallback(
    (open: boolean) => {
      setIsOpen(open);
      if (!open) {
        // short timeout to allow the mobile page animation
        // to complete before updating the state
        setTimeout(() => {
          setReview(undefined);
          setSelectedEvent(undefined);
          setPane("overview");
        }, 300);
      }
    },
    [setReview, setIsOpen],
  );

  useEffect(() => {
    setIsOpen(review != undefined);
    // we know that these deps are correct
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [review]);

  // keyboard listener

  useKeyboardListener(["Esc"], (key, modifiers) => {
    if (key == "Esc" && modifiers.down && !modifiers.repeat) {
      setIsOpen(false);
    }
  });

  const Overlay = isDesktop ? Sheet : MobilePage;
  const Content = isDesktop ? SheetContent : MobilePageContent;
  const Header = isDesktop ? SheetHeader : MobilePageHeader;
  const Title = isDesktop ? SheetTitle : MobilePageTitle;
  const Description = isDesktop ? SheetDescription : MobilePageDescription;

  if (!review) {
    return;
  }

  return (
    <>
      <Overlay open={isOpen ?? false} onOpenChange={handleOpenChange}>
        <FrigatePlusDialog
          upload={upload}
          onClose={() => setUpload(undefined)}
          onEventUploaded={() => {
            if (upload) {
              upload.plus_id = "new_upload";
            }
          }}
        />

        <Content
          className={cn(
            "scrollbar-container overflow-y-auto",
            isDesktop && pane == "overview"
              ? "sm:max-w-xl"
              : "pt-2 sm:max-w-4xl",
            isMobile && "px-4",
          )}
        >
          <span tabIndex={0} className="sr-only" />
          {pane == "overview" && (
            <Header className="justify-center">
              <Title>{t("details.item.title")}</Title>
              <Description className="sr-only">
                {t("details.item.desc")}
              </Description>
              <div
                className={cn(
                  "absolute flex gap-2 lg:flex-col",
                  isDesktop && "right-1 top-8",
                  isMobile && "right-0 top-3",
                )}
              >
                <Tooltip>
                  <TooltipTrigger asChild>
                    <Button
                      aria-label={t("details.item.button.share")}
                      size="sm"
                      onClick={() =>
                        shareOrCopy(`${baseUrl}review?id=${review.id}`)
                      }
                    >
                      <FaShareAlt className="size-4 text-secondary-foreground" />
                    </Button>
                  </TooltipTrigger>
                  <TooltipPortal>
                    <TooltipContent>
                      {t("details.item.button.share")}
                    </TooltipContent>
                  </TooltipPortal>
                </Tooltip>
                <Tooltip>
                  <TooltipTrigger>
                    <DownloadVideoButton
                      source={`${baseUrl}api/${review.camera}/start/${review.start_time}/end/${review.end_time || Date.now() / 1000}/clip.mp4`}
                      camera={review.camera}
                      startTime={review.start_time}
                    />
                  </TooltipTrigger>
                  <TooltipPortal>
                    <TooltipContent>
                      {t("button.download", { ns: "common" })}
                    </TooltipContent>
                  </TooltipPortal>
                </Tooltip>
              </div>
            </Header>
          )}
          {pane == "overview" && (
            <div className="flex flex-col gap-5 md:mt-3">
              <div className="flex w-full flex-row">
                <div className="flex w-full flex-col gap-3">
                  <div className="flex flex-col gap-1.5">
                    <div className="text-sm text-primary/40">
                      {t("details.camera")}
                    </div>
                    <div className="text-sm capitalize">
                      {review.camera.replaceAll("_", " ")}
                    </div>
                  </div>
                  <div className="flex flex-col gap-1.5">
                    <div className="text-sm text-primary/40">
                      {t("details.timestamp")}
                    </div>
                    <div className="text-sm">{formattedDate}</div>
                  </div>
                </div>
                <div className="flex w-full flex-col items-center gap-2">
                  <div className="flex w-full flex-col gap-1.5 lg:pr-8">
                    <div className="text-sm text-primary/40">
                      {t("details.objects")}
                    </div>
                    <div className="scrollbar-container flex max-h-32 flex-col items-start gap-2 overflow-y-auto text-sm capitalize">
                      {events?.map((event) => {
                        return (
                          <div
                            key={event.id}
                            className="flex flex-row items-center gap-2 capitalize"
                          >
                            {getIconForLabel(
                              event.label,
                              "size-3 text-primary",
                            )}
                            {event.sub_label ??
                              event.label.replaceAll("_", " ")}{" "}
                            ({Math.round(event.data.top_score * 100)}%)
                            <Tooltip>
                              <TooltipTrigger>
                                <div
                                  className="cursor-pointer"
                                  onClick={() => {
                                    navigate(`/explore?event_id=${event.id}`);
                                  }}
                                >
                                  <LuSearch className="size-4 text-muted-foreground" />
                                </div>
                              </TooltipTrigger>
                              <TooltipPortal>
                                <TooltipContent>
                                  {t("details.item.button.viewInExplore")}
                                </TooltipContent>
                              </TooltipPortal>
                            </Tooltip>
                          </div>
                        );
                      })}
                    </div>
                  </div>
                  {review.data.zones.length > 0 && (
                    <div className="scrollbar-container flex max-h-32 w-full flex-col gap-1.5">
                      <div className="text-sm text-primary/40">
                        {t("details.zones")}
                      </div>
                      <div className="flex flex-col items-start gap-2 text-sm capitalize">
                        {review.data.zones.map((zone) => {
                          return (
                            <div
                              key={zone}
                              className="flex flex-row items-center gap-2 capitalize"
                            >
                              {zone.replaceAll("_", " ")}
                            </div>
                          );
                        })}
                      </div>
                    </div>
                  )}
                </div>
              </div>
              {hasMismatch && (
                <div className="p-4 text-center text-sm">
                  {(() => {
                    const detectedCount = Math.abs(
                      (events?.length ?? 0) -
                        (review?.data.detections.length ?? 0),
                    );

                    return t("details.item.tips.mismatch", {
                      count: detectedCount,
                    });
                  })()}
                  {missingObjects.length > 0 && (
                    <div className="mt-2">
                      <Trans
                        ns="views/explore"
                        values={{
                          objects: missingObjects
                            .map((x) => t(x, { ns: "objects" }))
                            .join(", "),
                        }}
                      >
                        details.item.tips.hasMissingObjects
                      </Trans>
                    </div>
                  )}
                </div>
              )}
              <div className="relative flex size-full flex-col gap-2">
                {events?.map((event) => (
                  <EventItem
                    key={event.id}
                    event={event}
                    setPane={setPane}
                    setSelectedEvent={setSelectedEvent}
                    setUpload={setUpload}
                  />
                ))}
              </div>
            </div>
          )}

          {pane == "details" && selectedEvent && (
            <div className="mt-0 flex size-full flex-col gap-2">
              <ObjectLifecycle event={selectedEvent} setPane={setPane} />
            </div>
          )}
        </Content>
      </Overlay>
    </>
  );
}

type EventItemProps = {
  event: Event;
  setPane: React.Dispatch<React.SetStateAction<ReviewDetailPaneType>>;
  setSelectedEvent: React.Dispatch<React.SetStateAction<Event | undefined>>;
  setUpload?: React.Dispatch<React.SetStateAction<Event | undefined>>;
};

function EventItem({
  event,
  setPane,
  setSelectedEvent,
  setUpload,
}: EventItemProps) {
  const { t } = useTranslation(["views/explore"]);

  const { data: config } = useSWR<FrigateConfig>("config", {
    revalidateOnFocus: false,
  });

  const apiHost = useApiHost();

  const imgRef = useRef(null);

  const [hovered, setHovered] = useState(isMobile);

  const navigate = useNavigate();

  return (
    <>
      <div
        className={cn(
          "relative mr-auto",
          !event.has_snapshot && "flex flex-row items-center justify-center",
        )}
        onMouseEnter={isDesktop ? () => setHovered(true) : undefined}
        onMouseLeave={isDesktop ? () => setHovered(false) : undefined}
        key={event.id}
      >
        {event.has_snapshot && (
          <>
            <div className="pointer-events-none absolute inset-x-0 top-0 h-[30%] w-full rounded-lg bg-gradient-to-b from-black/20 to-transparent md:rounded-2xl"></div>
            <div className="pointer-events-none absolute inset-x-0 bottom-0 z-10 h-[10%] w-full rounded-lg bg-gradient-to-t from-black/20 to-transparent md:rounded-2xl"></div>
          </>
        )}
        <img
          ref={imgRef}
          className={cn(
            "select-none rounded-lg object-contain transition-opacity",
          )}
          style={
            isIOS
              ? {
                  WebkitUserSelect: "none",
                  WebkitTouchCallout: "none",
                }
              : undefined
          }
          draggable={false}
          src={
            event.has_snapshot
              ? `${apiHost}api/events/${event.id}/snapshot.jpg`
              : `${apiHost}api/events/${event.id}/thumbnail.webp`
          }
        />
        {hovered && (
          <div>
            <div
              className={cn("absolute right-1 top-1 flex items-center gap-2")}
            >
              <Tooltip>
                <TooltipTrigger asChild>
                  <a
                    download
                    href={
                      event.has_snapshot
                        ? `${apiHost}api/events/${event.id}/snapshot.jpg`
                        : `${apiHost}api/events/${event.id}/thumbnail.webp`
                    }
                  >
                    <Chip className="cursor-pointer rounded-md bg-gray-500 bg-gradient-to-br from-gray-400 to-gray-500">
                      <FaDownload className="size-4 text-white" />
                    </Chip>
                  </a>
                </TooltipTrigger>
                <TooltipContent>
                  {t("button.download", { ns: "common" })}
                </TooltipContent>
              </Tooltip>

              {event.has_snapshot &&
                event.plus_id == undefined &&
                event.data.type == "object" &&
                config?.plus.enabled && (
                  <Tooltip>
                    <TooltipTrigger>
                      <Chip
                        className="cursor-pointer rounded-md bg-gray-500 bg-gradient-to-br from-gray-400 to-gray-500"
                        onClick={() => {
                          setUpload?.(event);
                        }}
                      >
                        <FrigatePlusIcon className="size-4 text-white" />
                      </Chip>
                    </TooltipTrigger>
                    <TooltipContent>
                      {t("itemMenu.submitToPlus.label")}
                    </TooltipContent>
                  </Tooltip>
                )}

              {event.has_clip && (
                <Tooltip>
                  <TooltipTrigger>
                    <Chip
                      className="cursor-pointer rounded-md bg-gray-500 bg-gradient-to-br from-gray-400 to-gray-500"
                      onClick={() => {
                        setPane("details");
                        setSelectedEvent(event);
                      }}
                    >
                      <FaArrowsRotate className="size-4 text-white" />
                    </Chip>
                  </TooltipTrigger>
                  <TooltipContent>
                    {t("itemMenu.viewObjectLifecycle.label")}
                  </TooltipContent>
                </Tooltip>
              )}

              {event.has_snapshot && config?.semantic_search.enabled && (
                <Tooltip>
                  <TooltipTrigger>
                    <Chip
                      className="cursor-pointer rounded-md bg-gray-500 bg-gradient-to-br from-gray-400 to-gray-500"
                      onClick={() => {
                        navigate(
                          `/explore?search_type=similarity&event_id=${event.id}`,
                        );
                      }}
                    >
                      <FaImages className="size-4 text-white" />
                    </Chip>
                  </TooltipTrigger>
                  <TooltipContent>
                    {t("itemMenu.findSimilar.label")}
                  </TooltipContent>
                </Tooltip>
              )}
            </div>
          </div>
        )}
      </div>
    </>
  );
}