import { useState } from "react";
import { Box, Title, Stack, Switch, Button, Text, Group } from "@mantine/core";
import { Trans, useLingui } from "@lingui/react/macro";
import { useWebPush } from "@/hooks/use-web-push";
import { useAuth } from "@/contexts/auth-context";
import { useIsDeveloper } from "@/features/core/hooks/use-is-developer";
import { updateUserTelemetryAlerts } from "@/features/settings/server";
import toast from "@/lib/sonner";

const TelemetryAlertsSwitch = () => {
  const { t } = useLingui();
  const { metadata, set } = useAuth();
  const [saving, setSaving] = useState(false);

  const handleToggle = async (checked: boolean) => {
    setSaving(true);
    try {
      const result = await updateUserTelemetryAlerts({ data: checked });
      if (result?.metadata) {
        set({ metadata: result.metadata });
      }
    } catch {
      toast.error(t`Couldn't update telemetry alerts`);
    } finally {
      setSaving(false);
    }
  };

  return (
    <Switch
      checked={metadata?.telemetryAlerts === true}
      onChange={(e) => handleToggle(e.currentTarget.checked)}
      disabled={saving}
      label={t`Telemetry alerts`}
      description={t`Error spikes and failing functions, pushed to this account`}
    />
  );
};

export function NotificationsSection() {
  const { supported, configured, permission, subscribed, busy, enable, disable, sendTest } =
    useWebPush();
  const isDeveloper = useIsDeveloper();
  const { t } = useLingui();

  if (!supported || !configured) {
    return (
      <Box
        px="md"
        py="sm"
        style={{ borderBottom: "1px solid var(--mantine-color-default-border)" }}
      >
        <Title order={3}><Trans>Notifications</Trans></Title>
        <Text size="sm" c="dimmed" mt="xs">
          {supported
            ? <Trans>Notifications aren't available right now.</Trans>
            : <Trans>This device doesn't support push notifications. On iOS, install the app to your Home Screen first.</Trans>}
        </Text>
      </Box>
    );
  }

  const handleToggle = async (checked: boolean) => {
    if (checked) {
      const ok = await enable();
      if (ok) {
        toast.success(t`Notifications enabled on this device`);
      } else if (permission === "denied") {
        toast.error(
          t`Notifications are blocked. Enable them in your browser settings.`
        );
      } else {
        toast.error(t`Couldn't enable notifications`);
      }
    } else {
      const ok = await disable();
      if (ok) toast.success(t`Notifications disabled on this device`);
      else toast.error(t`Couldn't disable notifications`);
    }
  };

  const handleTest = async () => {
    const ok = await sendTest();
    if (ok) toast.success(t`Test notification sent`);
    else toast.error(t`Couldn't send test notification`);
  };

  return (
    <Box
      px="md"
      py="sm"
      style={{ borderBottom: "1px solid var(--mantine-color-default-border)" }}
    >
      <Title order={3}><Trans>Notifications</Trans></Title>
      <Stack mt="xs" gap="sm">
        <Switch
          checked={subscribed}
          onChange={(e) => handleToggle(e.currentTarget.checked)}
          disabled={busy}
          label={t`Enable notifications on this device`}
        />
        {subscribed && isDeveloper && <TelemetryAlertsSwitch />}
        {subscribed && (
          <Group>
            <Button
              variant="light"
              size="xs"
              onClick={handleTest}
              loading={busy}
            >
              <Trans>Send test notification</Trans>
            </Button>
          </Group>
        )}
      </Stack>
    </Box>
  );
}

export default NotificationsSection;