/*
 * Squidex Headless CMS
 *
 * @license
 * Copyright (c) Squidex UG (haftungsbeschränkt). All rights reserved.
 */

import { ChangeDetectionStrategy, Component, EventEmitter, Input, OnChanges, Output, SimpleChanges } from '@angular/core';
import { DialogModel, equalsQuery, hasFilter, LanguageDto, Queries, Query, QueryModel, SaveQueryForm, Types } from '@app/shared/internal';
import { Observable } from 'rxjs';

@Component({
    selector: 'sqx-search-form',
    styleUrls: ['./search-form.component.scss'],
    templateUrl: './search-form.component.html',
    changeDetection: ChangeDetectionStrategy.OnPush,
})
export class SearchFormComponent implements OnChanges {
    private previousQuery?: Query | null;

    @Output()
    public queryChange = new EventEmitter<Query>();

    @Input()
    public placeholder = '';

    @Input()
    public language: LanguageDto;

    @Input()
    public languages: ReadonlyArray<LanguageDto> = [];

    @Input()
    public queryModel?: QueryModel | null;

    @Input()
    public query?: Query | null;

    @Input()
    public queries?: Queries | null;

    @Input()
    public queriesTypes: string;

    @Input()
    public enableShortcut?: boolean | null;

    @Input()
    public formClass = 'form-inline search-form';

    public showQueries = false;

    public saveKey: Observable<string | undefined>;
    public saveQueryDialog = new DialogModel();
    public saveQueryForm = new SaveQueryForm();

    public searchDialog = new DialogModel(false);

    public hasFilter: boolean;

    public ngOnChanges(changes: SimpleChanges) {
        if (changes['query'] || changes['queries']) {
            this.updateSaveKey();
        }

        if (changes['query']) {
            this.previousQuery = Types.clone(this.query);

            this.hasFilter = hasFilter(this.query);
        }
    }

    public search(close = false) {
        this.hasFilter = hasFilter(this.query);

        if (this.query && !equalsQuery(this.query, this.previousQuery)) {
            const clone = Types.clone(this.query);

            this.queryChange.emit(clone);

            this.previousQuery = this.query;
        }

        if (close) {
            this.searchDialog.hide();
        }
    }

    public saveQuery() {
        this.saveQueryForm.submitCompleted({});
        this.saveQueryDialog.show();
    }

    public saveQueryComplete() {
        const value = this.saveQueryForm.submit();

        if (value) {
            if (this.queries && this.query) {
                this.queries.add(value.name, this.query, value.user);
            }

            this.saveQueryForm.submitCompleted();
            this.saveQueryDialog.hide();
        }
    }

    public changeQueryFullText(fullText: string) {
        this.query = { ...this.query, fullText };

        this.updateSaveKey();
    }

    public changeQuery(query: Query) {
        this.query = query;

        this.updateSaveKey();
    }

    public changeView(value: boolean) {
        this.showQueries = value;
    }

    private updateSaveKey() {
        if (this.queries && this.query) {
            this.saveKey = this.queries.getSaveKey(this.query);
        }
    }
}