import React, { useEffect, useState } from 'react';

import { Badge, Box, Container, Flex, Heading, Spinner, Table, TableContainer, Tbody, Td, Th, Thead, Tr } from '@chakra-ui/react';

import { ApiError } from '../client';
import ActionsMenu from '../components/Common/ActionsMenu';
import Navbar from '../components/Common/Navbar';
import useCustomToast from '../hooks/useCustomToast';
import { useUserStore } from '../store/user-store';
import { useUsersStore } from '../store/users-store';

const Admin: React.FC = () => {
    const showToast = useCustomToast();
    const [isLoading, setIsLoading] = useState(false);
    const { users, getUsers } = useUsersStore();
    const { user: currentUser } = useUserStore();

    useEffect(() => {
        const fetchUsers = async () => {
            setIsLoading(true);
            try {
                await getUsers();
            } catch (err) {
                const errDetail = (err as ApiError).body.detail;
                showToast('Something went wrong.', `${errDetail}`, 'error');
            } finally {
                setIsLoading(false);
            }
        }
        if (users.length === 0) {
            fetchUsers();
        }
    }, [])

    return (
        <>
            {isLoading ? (
                // TODO: Add skeleton
                <Flex justify='center' align='center' height='100vh' width='full'>
                    <Spinner size='xl' color='ui.main' />
                </Flex>
            ) : (
                users &&
                <Container maxW='full'>
                    <Heading size='lg' textAlign={{ base: 'center', md: 'left' }} pt={12}>
                        User Management
                    </Heading>
                    <Navbar type={'User'} />
                    <TableContainer>
                        <Table fontSize='md' size={{ base: 'sm', md: 'md' }}>
                            <Thead>
                                <Tr>
                                    <Th>Full name</Th>
                                    <Th>Email</Th>
                                    <Th>Role</Th>
                                    <Th>Status</Th>
                                    <Th>Actions</Th>
                                </Tr>
                            </Thead>
                            <Tbody>
                                {users.map((user) => (
                                    <Tr key={user.id}>
                                        <Td color={!user.full_name ? 'gray.600' : 'inherit'}>{user.full_name || 'N/A'}{currentUser?.id === user.id && <Badge ml='1' colorScheme='teal'>You</Badge>}</Td>
                                        <Td>{user.email}</Td>
                                        <Td>{user.is_superuser ? 'Superuser' : 'User'}</Td>
                                        <Td>
                                            <Flex gap={2}>
                                                <Box
                                                    w='2'
                                                    h='2'
                                                    borderRadius='50%'
                                                    bg={user.is_active ? 'ui.success' : 'ui.danger'}
                                                    alignSelf='center'
                                                />
                                                {user.is_active ? 'Active' : 'Inactive'}
                                            </Flex>
                                        </Td>
                                        <Td>
                                            <ActionsMenu type='User' id={user.id} disabled={currentUser?.id === user.id ? true : false} />
                                        </Td>
                                    </Tr>
                                ))}
                            </Tbody>
                        </Table>
                    </TableContainer>
                </Container>
            )}
        </>
    )
}

export default Admin;