/**
 * Identification Settings Page
 * Server name, description, and basic settings
 */

import {
  Alert,
  Button,
  Card,
  Container,
  Divider,
  Group,
  Loader,
  Stack,
  Switch,
  Text,
  TextInput,
  Textarea,
  ThemeIcon,
  Title,
} from '@mantine/core';
import { useForm } from '@mantine/form';
import { notifications } from '@mantine/notifications';
import {
  IconServer,
  IconAlertCircle,
  IconCheck,
  IconDeviceFloppy,
} from '@tabler/icons-react';
import { GetServerSidePropsContext } from 'next';

import { UnraidLayout } from '~/components/Unraid/Layout';
import { getServerAuthSession } from '~/server/auth';
import { getServerSideTranslations } from '~/tools/server/getServerSideTranslations';
import { checkForSessionOrAskForLogin } from '~/tools/server/loginBuilder';
import { api } from '~/utils/api';

export default function IdentificationSettingsPage() {
  const {
    data: vars,
    isLoading,
    error,
  } = api.unraid.vars.useQuery();

  const {
    data: info,
  } = api.unraid.info.useQuery();

  const form = useForm({
    initialValues: {
      name: '',
      description: '',
      model: '',
      timezone: '',
    },
  });

  // Update form when data loads
  if (vars && !form.isTouched()) {
    form.setValues({
      name: vars.name || '',
      description: vars.description || '',
      model: vars.model || '',
      timezone: vars.timezone || '',
    });
  }

  if (isLoading) {
    return (
      <UnraidLayout>
        <Container size="md" py="xl">
          <Stack align="center" spacing="md">
            <Loader size="xl" />
            <Text color="dimmed">Loading settings...</Text>
          </Stack>
        </Container>
      </UnraidLayout>
    );
  }

  if (error) {
    return (
      <UnraidLayout>
        <Container size="md" py="xl">
          <Alert icon={<IconAlertCircle size={16} />} title="Error" color="red">
            {error.message}
          </Alert>
        </Container>
      </UnraidLayout>
    );
  }

  return (
    <UnraidLayout>
      <Container size="md" py="xl">
        <Stack spacing="xl">
          {/* Header */}
          <Group>
            <ThemeIcon size={48} radius="md" variant="light" color="blue">
              <IconServer size={28} />
            </ThemeIcon>
            <div>
              <Title order={2}>Identification</Title>
              <Text color="dimmed" size="sm">
                Server name and basic settings
              </Text>
            </div>
          </Group>

          {/* Server Identity */}
          <Card shadow="sm" radius="md" withBorder>
            <Title order={4} mb="md">
              Server Identity
            </Title>

            <Stack spacing="md">
              <TextInput
                label="Server Name"
                description="The name of your Unraid server"
                placeholder="Tower"
                {...form.getInputProps('name')}
                disabled
              />

              <Textarea
                label="Description"
                description="A brief description of this server"
                placeholder="Home media server"
                {...form.getInputProps('description')}
                disabled
              />
            </Stack>
          </Card>

          {/* System Information */}
          <Card shadow="sm" radius="md" withBorder>
            <Title order={4} mb="md">
              System Information
            </Title>

            <Stack spacing="md">
              <Group position="apart">
                <Text size="sm" color="dimmed">
                  Unraid Version
                </Text>
                <Text size="sm" weight={500}>
                  {info?.versions.unraid || 'Unknown'}
                </Text>
              </Group>

              <Divider />

              <Group position="apart">
                <Text size="sm" color="dimmed">
                  Linux Kernel
                </Text>
                <Text size="sm" weight={500}>
                  {info?.os.kernel || 'Unknown'}
                </Text>
              </Group>

              <Divider />

              <Group position="apart">
                <Text size="sm" color="dimmed">
                  CPU
                </Text>
                <Text size="sm" weight={500}>
                  {info?.cpu.brand || 'Unknown'}
                </Text>
              </Group>

              <Divider />

              <Group position="apart">
                <Text size="sm" color="dimmed">
                  Motherboard
                </Text>
                <Text size="sm" weight={500}>
                  {info?.baseboard?.model || 'Unknown'}
                </Text>
              </Group>

              <Divider />

              <Group position="apart">
                <Text size="sm" color="dimmed">
                  Total RAM
                </Text>
                <Text size="sm" weight={500}>
                  {info?.memory?.total
                    ? `${Math.round(info.memory.total / 1024 / 1024 / 1024)} GB`
                    : 'Unknown'}
                </Text>
              </Group>

              <Divider />

              <Group position="apart">
                <Text size="sm" color="dimmed">
                  Timezone
                </Text>
                <Text size="sm" weight={500}>
                  {vars?.timezone || 'Unknown'}
                </Text>
              </Group>
            </Stack>
          </Card>

          {/* Server Model */}
          <Card shadow="sm" radius="md" withBorder>
            <Title order={4} mb="md">
              Hardware
            </Title>

            <Stack spacing="md">
              <Group position="apart">
                <Text size="sm" color="dimmed">
                  Model
                </Text>
                <Text size="sm" weight={500}>
                  {vars?.model || 'Unknown'}
                </Text>
              </Group>

              <Divider />

              <Group position="apart">
                <Text size="sm" color="dimmed">
                  Protocol
                </Text>
                <Text size="sm" weight={500}>
                  {vars?.protocol || 'Unknown'}
                </Text>
              </Group>

              <Divider />

              <Group position="apart">
                <Text size="sm" color="dimmed">
                  Port
                </Text>
                <Text size="sm" weight={500} style={{ fontFamily: 'monospace' }}>
                  {vars?.port || 'Unknown'}
                </Text>
              </Group>
            </Stack>
          </Card>

          {/* Save Button (disabled for now) */}
          <Group position="right">
            <Button
              leftIcon={<IconDeviceFloppy size={16} />}
              disabled
            >
              Save Changes
            </Button>
          </Group>
        </Stack>
      </Container>
    </UnraidLayout>
  );
}

export const getServerSideProps = async (context: GetServerSidePropsContext) => {
  const session = await getServerAuthSession(context);
  const translations = await getServerSideTranslations(
    ['common'],
    context.locale,
    context.req,
    context.res
  );

  const result = checkForSessionOrAskForLogin(
    context,
    session,
    () => session?.user != undefined
  );
  if (result) {
    return result;
  }

  return {
    props: {
      ...translations,
    },
  };
};