import { gql } from '@apollo/client';
import { Avatar } from '@app/client/components/ui/avatar';
import { userFragment } from '@app/client/fragments';
import { toFormattedDate } from '@app/client/helpers';
import { useIdentity } from '@app/client/hooks/identity';
import { useToastMutation } from '@app/client/hooks/useToastMutation';
import { useUserOneQuery } from '@app/client/hooks/useUserOneQuery';
import {
  Button,
  Card,
  Heading,
  HStack,
  Icon,
  SkeletonCircle,
  SkeletonText,
  Stack,
  Text,
  Textarea
} from '@chakra-ui/react';
import { UserProfileUpdateMutation } from '@generated/types';
import { createFileRoute } from '@tanstack/react-router';
import { useState } from 'react';

export const Route = createFileRoute('/profile/$username')({
  component: RouteComponent
});

function RouteComponent() {
  const { username } = Route.useParams();

  const { data } = useUserOneQuery({
    input: {
      username
    }
  });

  if (data == null) return <UserOverviewSkeleton />;

  return (
    <Stack width="100%" justifyContent="center" alignItems="center" padding={3}>
      <UserOverview user={{ ...data.userOne }} />
    </Stack>
  );
}

function UserOverview({
  user
}: {
  readonly user: {
    readonly id: string;
    readonly username: string;
    readonly description?: string | null;
    readonly createdAt: string;
  };
}) {
  const identity = useIdentity();

  const { update: userUpdate } = useToastMutation<UserProfileUpdateMutation>({
    mutation: userUpdateMutation,
    successMsg: 'Profile updated successfully!'
  });

  const [isEditMode, setIsEditMode] = useState<boolean>(false);
  const [description, setDescription] = useState<string>(user.description ?? '');

  return (
    <Stack width={{ base: '100%', md: '80%' }} maxWidth="840px" gap={3}>
      <Stack direction="row" alignItems="start">
        <Avatar size="2xl" fallback={user.username[0]} />
        <Stack width="100%">
          <Heading color="colorPalette.400" size="2xl" overflow="auto">
            {user.username}
          </Heading>

          <Stack direction="row" justifyContent="space-between" alignItems="center">
            <Stack direction="row">
              <Text fontWeight="bold">joined:</Text>
              <Text color="fg.muted">{toFormattedDate({ value: user.createdAt })}</Text>
            </Stack>
            {identity != null && isEditMode && (
              <Stack>
                <Stack direction="row" alignItems="center" justifyContent="end" gap={1}>
                  <Button
                    size="sm"
                    height={6}
                    bg="green.500"
                    padding={0}
                    onClick={async () => {
                      await userUpdate({
                        variables: {
                          input: {
                            id: user.id,
                            description
                          }
                        }
                      });
                      identity.refetch();
                      setIsEditMode(false);
                    }}
                  >
                    <Icon>
                      <i className="nf nf-fa-check" />
                    </Icon>
                  </Button>
                  <Button
                    size="sm"
                    height={6}
                    bg="red.500"
                    padding={0}
                    onClick={async () => {
                      setDescription(user.description ?? '');
                      setIsEditMode(false);
                    }}
                  >
                    <Icon>
                      <i className="nf nf-fa-close" />
                    </Icon>
                  </Button>
                </Stack>
              </Stack>
            )}

            {!isEditMode && identity?.data.id === user.id && (
              <Button
                size="sm"
                height={6}
                padding={0}
                onClick={() => {
                  setIsEditMode(true);
                }}
              >
                <Icon>
                  <i className="nf nf-fa-edit" />
                </Icon>
              </Button>
            )}
          </Stack>
        </Stack>
      </Stack>
      {isEditMode ? (
        <Stack width="100%" borderRadius="md" position="relative">
          <Textarea
            variant="subtle"
            placeholder="Tell us about yourself!"
            resize="none"
            maxLength={700}
            maxLines={10}
            fontSize="md"
            autoresize
            value={description}
            onChange={event => setDescription(event.target.value)}
          />
        </Stack>
      ) : (
        <Card.Root variant="subtle" width="100%">
          <Card.Body paddingX="3" paddingY="1">
            <Text>{user.description ?? 'No user description =('}</Text>
          </Card.Body>
        </Card.Root>
      )}
    </Stack>
  );
}

function UserOverviewSkeleton() {
  return (
    <Stack width="100%" justifyContent="center" alignItems="center" padding={3}>
      <Stack width={{ base: '100%', md: '80%' }} maxWidth="840px">
        <SkeletonCircle width={70} height={70} />
        <Stack gap="6" maxWidth="100%">
          <HStack width="full">
            <SkeletonText noOfLines={5} />
          </HStack>
        </Stack>
      </Stack>
    </Stack>
  );
}

const userUpdateMutation = gql`
  mutation UserProfileUpdate($input: UserUpdateInput!) {
    userUpdate(input: $input) {
      ...User
    }
  }
  ${userFragment}
`;