/* eslint-disable indent */

/**
 * Module for itemidentifier media item.
 * @module components/itemidentifier/itemidentifier
 */

import escapeHtml from 'escape-html';
import dialogHelper from '../dialogHelper/dialogHelper';
import loading from '../loading/loading';
import globalize from '../../scripts/globalize';
import scrollHelper from '../../scripts/scrollHelper';
import layoutManager from '../layoutManager';
import focusManager from '../focusManager';
import browser from '../../scripts/browser';
import '../../elements/emby-input/emby-input';
import '../../elements/emby-checkbox/emby-checkbox';
import '../../elements/emby-button/paper-icon-button-light';
import '../formdialog.scss';
import 'material-design-icons-iconfont';
import '../cardbuilder/card.scss';
import ServerConnections from '../ServerConnections';
import toast from '../toast/toast';
import template from './itemidentifier.template.html';
import datetime from '../../scripts/datetime';

    const enableFocusTransform = !browser.slow && !browser.edge;

    let currentItem;
    let currentItemType;
    let currentServerId;
    let currentResolve;
    let currentReject;
    let hasChanges = false;
    let currentSearchResult;

    function getApiClient() {
        return ServerConnections.getApiClient(currentServerId);
    }

    function searchForIdentificationResults(page) {
        let lookupInfo = {
            ProviderIds: {}
        };

        let i;
        let length;
        const identifyField = page.querySelectorAll('.identifyField');
        let value;
        for (i = 0, length = identifyField.length; i < length; i++) {
            value = identifyField[i].value;

            if (value) {
                if (identifyField[i].type === 'number') {
                    value = parseInt(value, 10);
                }

                lookupInfo[identifyField[i].getAttribute('data-lookup')] = value;
            }
        }

        let hasId = false;

        const txtLookupId = page.querySelectorAll('.txtLookupId');
        for (i = 0, length = txtLookupId.length; i < length; i++) {
            value = txtLookupId[i].value;

            if (value) {
                hasId = true;
            }
            lookupInfo.ProviderIds[txtLookupId[i].getAttribute('data-providerkey')] = value;
        }

        if (!hasId && !lookupInfo.Name) {
            toast(globalize.translate('PleaseEnterNameOrId'));
            return;
        }

        lookupInfo = {
            SearchInfo: lookupInfo
        };

        if (currentItem && currentItem.Id) {
            lookupInfo.ItemId = currentItem.Id;
        } else {
            lookupInfo.IncludeDisabledProviders = true;
        }

        loading.show();

        const apiClient = getApiClient();

        apiClient.ajax({
            type: 'POST',
            url: apiClient.getUrl(`Items/RemoteSearch/${currentItemType}`),
            data: JSON.stringify(lookupInfo),
            contentType: 'application/json',
            dataType: 'json'

        }).then(results => {
            loading.hide();
            showIdentificationSearchResults(page, results);
        });
    }

    function showIdentificationSearchResults(page, results) {
        const identificationSearchResults = page.querySelector('.identificationSearchResults');

        page.querySelector('.popupIdentifyForm').classList.add('hide');
        identificationSearchResults.classList.remove('hide');
        page.querySelector('.identifyOptionsForm').classList.add('hide');
        page.querySelector('.dialogContentInner').classList.remove('dialog-content-centered');

        let html = '';
        let i;
        let length;
        for (i = 0, length = results.length; i < length; i++) {
            const result = results[i];
            html += getSearchResultHtml(result, i);
        }

        const elem = page.querySelector('.identificationSearchResultList');
        elem.innerHTML = html;

        function onSearchImageClick() {
            const index = parseInt(this.getAttribute('data-index'), 10);

            const currentResult = results[index];

            if (currentItem != null) {
                showIdentifyOptions(page, currentResult);
            } else {
                finishFindNewDialog(page, currentResult);
            }
        }

        const searchImages = elem.querySelectorAll('.card');
        for (i = 0, length = searchImages.length; i < length; i++) {
            searchImages[i].addEventListener('click', onSearchImageClick);
        }

        if (layoutManager.tv) {
            focusManager.autoFocus(identificationSearchResults);
        }
    }

    function finishFindNewDialog(dlg, identifyResult) {
        currentSearchResult = identifyResult;
        hasChanges = true;
        loading.hide();

        dialogHelper.close(dlg);
    }

    function showIdentifyOptions(page, identifyResult) {
        const identifyOptionsForm = page.querySelector('.identifyOptionsForm');

        page.querySelector('.popupIdentifyForm').classList.add('hide');
        page.querySelector('.identificationSearchResults').classList.add('hide');
        identifyOptionsForm.classList.remove('hide');
        page.querySelector('#chkIdentifyReplaceImages').checked = true;
        page.querySelector('.dialogContentInner').classList.add('dialog-content-centered');

        currentSearchResult = identifyResult;

        const lines = [];
        lines.push(escapeHtml(identifyResult.Name));

        if (identifyResult.ProductionYear) {
            lines.push(datetime.toLocaleString(identifyResult.ProductionYear, { useGrouping: false }));
        }

        let resultHtml = lines.join('<br/>');

        if (identifyResult.ImageUrl) {
            resultHtml = `<div style="display:flex;align-items:center;"><img src="${identifyResult.ImageUrl}" style="max-height:240px;" /><div style="margin-left:1em;">${resultHtml}</div>`;
        }

        page.querySelector('.selectedSearchResult').innerHTML = resultHtml;

        focusManager.focus(identifyOptionsForm.querySelector('.btnSubmit'));
    }

    function getSearchResultHtml(result, index) {
        // TODO move card creation code to Card component

        let html = '';
        let cssClass = 'card scalableCard';
        let cardBoxCssClass = 'cardBox';
        let padderClass;

        if (currentItemType === 'Episode') {
            cssClass += ' backdropCard backdropCard-scalable';
            padderClass = 'cardPadder-backdrop';
        } else if (currentItemType === 'MusicAlbum' || currentItemType === 'MusicArtist') {
            cssClass += ' squareCard squareCard-scalable';
            padderClass = 'cardPadder-square';
        } else {
            cssClass += ' portraitCard portraitCard-scalable';
            padderClass = 'cardPadder-portrait';
        }

        if (layoutManager.tv) {
            cssClass += ' show-focus';

            if (enableFocusTransform) {
                cssClass += ' show-animation';
            }
        }

        cardBoxCssClass += ' cardBox-bottompadded';

        html += `<button type="button" class="${cssClass}" data-index="${index}">`;
        html += `<div class="${cardBoxCssClass}">`;
        html += '<div class="cardScalable">';
        html += `<div class="${padderClass}"></div>`;

        html += '<div class="cardContent searchImage">';

        if (result.ImageUrl) {
            html += `<div class="cardImageContainer coveredImage" style="background-image:url('${result.ImageUrl}');"></div>`;
        } else {
            html += `<div class="cardImageContainer coveredImage defaultCardBackground defaultCardBackground1"><div class="cardText cardCenteredText">${escapeHtml(result.Name)}</div></div>`;
        }
        html += '</div>';
        html += '</div>';

        let numLines = 3;
        if (currentItemType === 'MusicAlbum') {
            numLines++;
        }

        const lines = [result.Name];

        lines.push(result.SearchProviderName);

        if (result.AlbumArtist) {
            lines.push(result.AlbumArtist.Name);
        }
        if (result.ProductionYear) {
            lines.push(result.ProductionYear);
        }

        for (let i = 0; i < numLines; i++) {
            if (i === 0) {
                html += '<div class="cardText cardText-first cardTextCentered">';
            } else {
                html += '<div class="cardText cardText-secondary cardTextCentered">';
            }
            html += escapeHtml(lines[i] || '') || '&nbsp;';
            html += '</div>';
        }

        html += '</div>';
        html += '</button>';
        return html;
    }

    function submitIdentficationResult(page) {
        loading.show();

        const options = {
            ReplaceAllImages: page.querySelector('#chkIdentifyReplaceImages').checked
        };

        const apiClient = getApiClient();

        apiClient.ajax({
            type: 'POST',
            url: apiClient.getUrl(`Items/RemoteSearch/Apply/${currentItem.Id}`, options),
            data: JSON.stringify(currentSearchResult),
            contentType: 'application/json'

        }).then(() => {
            hasChanges = true;
            loading.hide();

            dialogHelper.close(page);
        }, () => {
            loading.hide();

            dialogHelper.close(page);
        });
    }

    function showIdentificationForm(page, item) {
        const apiClient = getApiClient();

        apiClient.getJSON(apiClient.getUrl(`Items/${item.Id}/ExternalIdInfos`)).then(idList => {
            let html = '';

            for (let i = 0, length = idList.length; i < length; i++) {
                const idInfo = idList[i];

                const id = `txtLookup${idInfo.Key}`;

                html += '<div class="inputContainer">';

                let fullName = idInfo.Name;
                if (idInfo.Type) {
                    fullName = `${idInfo.Name} ${globalize.translate(idInfo.Type)}`;
                }

                const idLabel = globalize.translate('LabelDynamicExternalId', escapeHtml(fullName));

                html += `<input is="emby-input" class="txtLookupId" data-providerkey="${idInfo.Key}" id="${id}" label="${idLabel}"/>`;

                html += '</div>';
            }

            page.querySelector('#txtLookupName').value = '';

            if (item.Type === 'Person' || item.Type === 'BoxSet') {
                page.querySelector('.fldLookupYear').classList.add('hide');
                page.querySelector('#txtLookupYear').value = '';
            } else {
                page.querySelector('.fldLookupYear').classList.remove('hide');
                page.querySelector('#txtLookupYear').value = '';
            }

            page.querySelector('.identifyProviderIds').innerHTML = html;

            page.querySelector('.formDialogHeaderTitle').innerHTML = globalize.translate('Identify');
        });
    }

    function showEditor(itemId) {
        loading.show();

        const apiClient = getApiClient();

        apiClient.getItem(apiClient.getCurrentUserId(), itemId).then(item => {
            currentItem = item;
            currentItemType = currentItem.Type;

            const dialogOptions = {
                size: 'small',
                removeOnClose: true,
                scrollY: false
            };

            if (layoutManager.tv) {
                dialogOptions.size = 'fullscreen';
            }

            const dlg = dialogHelper.createDialog(dialogOptions);

            dlg.classList.add('formDialog');
            dlg.classList.add('recordingDialog');

            let html = '';
            html += globalize.translateHtml(template, 'core');

            dlg.innerHTML = html;

            // Has to be assigned a z-index after the call to .open()
            dlg.addEventListener('close', onDialogClosed);

            if (layoutManager.tv) {
                scrollHelper.centerFocus.on(dlg.querySelector('.formDialogContent'), false);
            }

            if (item.Path) {
                dlg.querySelector('.fldPath').classList.remove('hide');
            } else {
                dlg.querySelector('.fldPath').classList.add('hide');
            }

            dlg.querySelector('.txtPath').innerText = item.Path || '';

            dialogHelper.open(dlg);

            dlg.querySelector('.popupIdentifyForm').addEventListener('submit', e => {
                e.preventDefault();
                searchForIdentificationResults(dlg);
                return false;
            });

            dlg.querySelector('.identifyOptionsForm').addEventListener('submit', e => {
                e.preventDefault();
                submitIdentficationResult(dlg);
                return false;
            });

            dlg.querySelector('.btnCancel').addEventListener('click', () => {
                dialogHelper.close(dlg);
            });

            dlg.classList.add('identifyDialog');

            showIdentificationForm(dlg, item);
            loading.hide();
        });
    }

    function onDialogClosed() {
        loading.hide();
        if (hasChanges) {
            currentResolve();
        } else {
            currentReject();
        }
    }

    // TODO investigate where this was used
    function showEditorFindNew(itemName, itemYear, itemType, resolveFunc) {
        currentItem = null;
        currentItemType = itemType;

        const dialogOptions = {
            size: 'small',
            removeOnClose: true,
            scrollY: false
        };

        if (layoutManager.tv) {
            dialogOptions.size = 'fullscreen';
        }

        const dlg = dialogHelper.createDialog(dialogOptions);

        dlg.classList.add('formDialog');
        dlg.classList.add('recordingDialog');

        let html = '';
        html += globalize.translateHtml(template, 'core');

        dlg.innerHTML = html;

        if (layoutManager.tv) {
            scrollHelper.centerFocus.on(dlg.querySelector('.formDialogContent'), false);
        }

        dialogHelper.open(dlg);

        dlg.querySelector('.btnCancel').addEventListener('click', () => {
            dialogHelper.close(dlg);
        });

        dlg.querySelector('.popupIdentifyForm').addEventListener('submit', e => {
            e.preventDefault();
            searchForIdentificationResults(dlg);
            return false;
        });

        dlg.addEventListener('close', () => {
            loading.hide();
            const foundItem = hasChanges ? currentSearchResult : null;

            resolveFunc(foundItem);
        });

        dlg.classList.add('identifyDialog');

        showIdentificationFormFindNew(dlg, itemName, itemYear, itemType);
    }

    function showIdentificationFormFindNew(dlg, itemName, itemYear, itemType) {
        dlg.querySelector('#txtLookupName').value = itemName;

        if (itemType === 'Person' || itemType === 'BoxSet') {
            dlg.querySelector('.fldLookupYear').classList.add('hide');
            dlg.querySelector('#txtLookupYear').value = '';
        } else {
            dlg.querySelector('.fldLookupYear').classList.remove('hide');
            dlg.querySelector('#txtLookupYear').value = itemYear;
        }

        dlg.querySelector('.formDialogHeaderTitle').innerHTML = globalize.translate('Search');
    }

    export function show(itemId, serverId) {
        return new Promise((resolve, reject) => {
            currentResolve = resolve;
            currentReject = reject;
            currentServerId = serverId;
            hasChanges = false;

            showEditor(itemId);
        });
    }

    export function showFindNew(itemName, itemYear, itemType, serverId) {
        return new Promise((resolve) => {
            currentServerId = serverId;

            hasChanges = false;
            showEditorFindNew(itemName, itemYear, itemType, resolve);
        });
    }

/* eslint-enable indent */
export default {
    show: show,
    showFindNew: showFindNew
};