import React, { useState } from 'react';
import { faBoxOpen, faCloudDownloadAlt, faEllipsisH, faLock, faTrashAlt, faUnlock } from '@fortawesome/free-solid-svg-icons';
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import DropdownMenu, { DropdownButtonRow } from '@/components/elements/DropdownMenu';
import getBackupDownloadUrl from '@/api/server/backups/getBackupDownloadUrl';
import useFlash from '@/plugins/useFlash';
import SpinnerOverlay from '@/components/elements/SpinnerOverlay';
import deleteBackup from '@/api/server/backups/deleteBackup';
import ConfirmationModal from '@/components/elements/ConfirmationModal';
import Can from '@/components/elements/Can';
import tw from 'twin.macro';
import getServerBackups from '@/api/swr/getServerBackups';
import { ServerBackup } from '@/api/server/types';
import { ServerContext } from '@/state/server';
import Input from '@/components/elements/Input';
import { restoreServerBackup } from '@/api/server/backups';
import http, { httpErrorToHuman } from '@/api/http';

interface Props {
    backup: ServerBackup;
}

export default ({ backup }: Props) => {
    const uuid = ServerContext.useStoreState(state => state.server.data!.uuid);
    const setServerFromState = ServerContext.useStoreActions(actions => actions.server.setServerFromState);
    const [ modal, setModal ] = useState('');
    const [ loading, setLoading ] = useState(false);
    const [ truncate, setTruncate ] = useState(false);
    const { clearFlashes, clearAndAddHttpError } = useFlash();
    const { mutate } = getServerBackups();

    const doDownload = () => {
        setLoading(true);
        clearFlashes('backups');
        getBackupDownloadUrl(uuid, backup.uuid)
            .then(url => {
                // @ts-ignore
                window.location = url;
            })
            .catch(error => {
                console.error(error);
                clearAndAddHttpError({ key: 'backups', error });
            })
            .then(() => setLoading(false));
    };

    const doDeletion = () => {
        setLoading(true);
        clearFlashes('backups');
        deleteBackup(uuid, backup.uuid)
            .then(async () => await mutate(data => ({
                ...data!,
                items: data!.items.filter(b => b.uuid !== backup.uuid),
                backupCount: data!.backupCount - 1,
            }), false))
            .catch(error => {
                console.error(error);
                clearAndAddHttpError({ key: 'backups', error });
                setLoading(false);
                setModal('');
            });
    };

    const doRestorationAction = () => {
        setLoading(true);
        clearFlashes('backups');
        restoreServerBackup(uuid, backup.uuid, truncate)
            .then(() => setServerFromState(s => ({
                ...s,
                status: 'restoring_backup',
            })))
            .catch(error => {
                console.error(error);
                clearAndAddHttpError({ key: 'backups', error });
            })
            .then(() => setLoading(false))
            .then(() => setModal(''));
    };

    const onLockToggle = () => {
        if (backup.isLocked && modal !== 'unlock') {
            return setModal('unlock');
        }

        http.post(`/api/client/servers/${uuid}/backups/${backup.uuid}/lock`)
            .then(async () => await mutate(data => ({
                ...data!,
                items: data!.items.map(b => b.uuid !== backup.uuid ? b : {
                    ...b,
                    isLocked: !b.isLocked,
                }),
            }), false))
            .catch(error => alert(httpErrorToHuman(error)))
            .then(() => setModal(''));
    };

    return (
        <>
            <ConfirmationModal
                visible={modal === 'unlock'}
                title={'Unlock this backup?'}
                onConfirmed={onLockToggle}
                onModalDismissed={() => setModal('')}
                buttonText={'Yes, unlock'}
            >
                Are you sure you want to unlock this backup? It will no longer be protected from automated or
                accidental deletions.
            </ConfirmationModal>
            <ConfirmationModal
                visible={modal === 'restore'}
                title={'Restore this backup?'}
                buttonText={'Restore backup'}
                onConfirmed={() => doRestorationAction()}
                onModalDismissed={() => setModal('')}
            >
                <p css={tw`text-neutral-300`}>
                    This server will be stopped in order to restore the backup. Once the backup has started you will
                    not be able to control the server power state, access the file manager, or create additional backups
                    until it has completed.
                </p>
                <p css={tw`mt-4 text-neutral-300`}>
                    Are you sure you want to continue?
                </p>
                <p css={tw`p-3 mt-4 -mb-2 rounded bg-neutral-900`}>
                    <label
                        htmlFor={'restore_truncate'}
                        css={tw`flex items-center text-base cursor-pointer text-neutral-200`}
                    >
                        <Input
                            type={'checkbox'}
                            css={tw`text-red-500! w-5! h-5! mr-2`}
                            id={'restore_truncate'}
                            value={'true'}
                            checked={truncate}
                            onChange={() => setTruncate(s => !s)}
                        />
                        Remove all files and folders before restoring this backup.
                    </label>
                </p>
            </ConfirmationModal>
            <ConfirmationModal
                visible={modal === 'delete'}
                title={'Delete this backup?'}
                buttonText={'Yes, delete backup'}
                onConfirmed={() => doDeletion()}
                onModalDismissed={() => setModal('')}
            >
                Are you sure you wish to delete this backup? This is a permanent operation and the backup cannot
                be recovered once deleted.
            </ConfirmationModal>
            <SpinnerOverlay visible={loading} fixed/>
            {backup.isSuccessful ?
                <DropdownMenu
                    renderToggle={onClick => (
                        <button
                            onClick={onClick}
                            css={tw`p-2 transition-colors duration-150 text-neutral-200 hover:text-neutral-100`}
                        >
                            <FontAwesomeIcon icon={faEllipsisH}/>
                        </button>
                    )}
                >
                    <div css={tw`text-sm`}>
                        <Can action={'backup.download'}>
                            <DropdownButtonRow onClick={doDownload}>
                                <FontAwesomeIcon fixedWidth icon={faCloudDownloadAlt} css={tw`text-xs`}/>
                                <span css={tw`ml-2`}>Download</span>
                            </DropdownButtonRow>
                        </Can>
                        <Can action={'backup.restore'}>
                            <DropdownButtonRow onClick={() => setModal('restore')}>
                                <FontAwesomeIcon fixedWidth icon={faBoxOpen} css={tw`text-xs`}/>
                                <span css={tw`ml-2`}>Restore</span>
                            </DropdownButtonRow>
                        </Can>
                        <Can action={'backup.delete'}>
                            <>
                                <DropdownButtonRow onClick={onLockToggle}>
                                    <FontAwesomeIcon
                                        fixedWidth
                                        icon={backup.isLocked ? faUnlock : faLock}
                                        css={tw`mr-2 text-xs`}
                                    />
                                    {backup.isLocked ? 'Unlock' : 'Lock'}
                                </DropdownButtonRow>
                                {!backup.isLocked &&
                                <DropdownButtonRow danger onClick={() => setModal('delete')}>
                                    <FontAwesomeIcon fixedWidth icon={faTrashAlt} css={tw`text-xs`}/>
                                    <span css={tw`ml-2`}>Delete</span>
                                </DropdownButtonRow>
                                }
                            </>
                        </Can>
                    </div>
                </DropdownMenu>
                :
                <button
                    onClick={() => setModal('delete')}
                    css={tw`p-2 transition-colors duration-150 text-neutral-200 hover:text-neutral-100`}
                >
                    <FontAwesomeIcon icon={faTrashAlt}/>
                </button>
            }
        </>
    );
};