"use client";

import { useEffect, useMemo, useRef, useState } from "react";
import { Accordion, Anchor, Group, Image, ScrollArea, Stack, Text } from "@mantine/core";
import { useLocalStorage } from "@mantine/hooks";

import { useTimeAgo } from "@homarr/common";
import { useScopedI18n } from "@homarr/translation/client";

import { ApplicationsSection } from "./applications-section";
import { buildServerResourceCounts } from "./coolify-utils";
import { ServersSection } from "./servers-section";
import { ServicesSection } from "./services-section";
import type { CoolifyOptions, InstanceData } from "./types";
import { COOLIFY_BRAND_COLOR, COOLIFY_ICON_URL } from "./types";

interface SingleInstanceLayoutProps {
  instance: InstanceData;
  options: CoolifyOptions;
  isTiny: boolean;
  widgetKey: string;
  isAdvanced: boolean;
  hideFooter: boolean;
}

export function SingleInstanceLayout({
  instance,
  options,
  isTiny,
  widgetKey,
  isAdvanced,
  hideFooter,
}: SingleInstanceLayoutProps) {
  const t = useScopedI18n("widget.coolify");
  const [showIp, setShowIp] = useLocalStorage({
    key: `coolify-show-ip-${widgetKey}`,
    defaultValue: false,
  });
  const [openSections, setOpenSections] = useLocalStorage<string[]>({
    key: `coolify-sections-${widgetKey}`,
    defaultValue: ["applications"],
  });
  const visibleSections = useMemo(
    () =>
      [
        options.showServers ? "servers" : null,
        options.showApplications ? "applications" : null,
        options.showServices ? "services" : null,
      ].filter((section): section is string => section !== null),
    [options.showApplications, options.showServers, options.showServices],
  );
  const [advancedOpenSections, setAdvancedOpenSections] = useState(visibleSections);
  const previousVisibleSectionsRef = useRef(visibleSections);

  useEffect(() => {
    const newlyVisibleSections = visibleSections.filter(
      (section) => !previousVisibleSectionsRef.current.includes(section),
    );
    previousVisibleSectionsRef.current = visibleSections;
    if (newlyVisibleSections.length === 0) return;

    setAdvancedOpenSections((current) => [...new Set([...current, ...newlyVisibleSections])]);
  }, [visibleSections]);

  const serverResourceCounts = buildServerResourceCounts(
    instance.instanceInfo.servers,
    instance.instanceInfo.applications,
    instance.instanceInfo.services,
  );

  const baseUrl = instance.integrationUrl.replace(/\/+$/, "");
  const displayUrl = baseUrl.replace(/^https?:\/\//, "");
  const relativeTime = useTimeAgo(instance.updatedAt);

  return (
    <ScrollArea h="100%">
      <Stack gap={0}>
        <Group p="xs" justify="center" gap="xs" style={{ borderBottom: `2px solid ${COOLIFY_BRAND_COLOR}` }}>
          <Group gap={2}>
            <Image src={COOLIFY_ICON_URL} alt="Coolify" w={isTiny ? 18 : 24} h={isTiny ? 18 : 24} />
            <Text fz={isTiny ? "xs" : "sm"} fw={700} style={{ color: COOLIFY_BRAND_COLOR }}>
              oolify
            </Text>
          </Group>
          <Anchor
            href={baseUrl}
            target="_blank"
            rel="noopener noreferrer"
            fz={isTiny ? "xs" : "sm"}
            fw={500}
            c="dimmed"
            lineClamp={1}
          >
            {displayUrl}
          </Anchor>
        </Group>

        <Accordion
          variant="contained"
          chevronPosition="right"
          multiple
          value={isAdvanced ? advancedOpenSections : openSections}
          onChange={isAdvanced ? setAdvancedOpenSections : setOpenSections}
        >
          {options.showServers && (
            <ServersSection
              servers={instance.instanceInfo.servers}
              serverResourceCounts={serverResourceCounts}
              baseUrl={baseUrl}
              isTiny={isTiny}
              showIp={showIp}
              onToggleIp={() => setShowIp((prev) => !prev)}
            />
          )}
          {options.showApplications && (
            <ApplicationsSection applications={instance.instanceInfo.applications} baseUrl={baseUrl} isTiny={isTiny} />
          )}
          {options.showServices && (
            <ServicesSection services={instance.instanceInfo.services} baseUrl={baseUrl} isTiny={isTiny} />
          )}
        </Accordion>

        {!hideFooter && (
          <Group
            justify="space-between"
            p={4}
            style={{ borderTop: "1px solid light-dark(var(--mantine-color-gray-3), var(--mantine-color-dark-4))" }}
          >
            <Group gap={2}>
              <Image src={COOLIFY_ICON_URL} alt="Coolify" w={16} h={16} />
              <Text size="xs" c="dimmed">
                v{instance.instanceInfo.version}
              </Text>
            </Group>
            <Text size="xs" c="dimmed">
              {t("footer.updated", { when: relativeTime })}
            </Text>
          </Group>
        )}
      </Stack>
    </ScrollArea>
  );
}