import {
    Directive,
    EventEmitter,
    Input,
    Output,
} from '@angular/core';

import { SearchService } from 'jslib-common/abstractions/search.service';

import { CipherView } from 'jslib-common/models/view/cipherView';

@Directive()
export class CiphersComponent {
    @Input() activeCipherId: string = null;
    @Output() onCipherClicked = new EventEmitter<CipherView>();
    @Output() onCipherRightClicked = new EventEmitter<CipherView>();
    @Output() onAddCipher = new EventEmitter();
    @Output() onAddCipherOptions = new EventEmitter();

    loaded: boolean = false;
    ciphers: CipherView[] = [];
    searchText: string;
    searchPlaceholder: string = null;
    filter: (cipher: CipherView) => boolean = null;
    deleted: boolean = false;

    protected searchPending = false;

    private searchTimeout: any = null;

    constructor(protected searchService: SearchService) { }

    async load(filter: (cipher: CipherView) => boolean = null, deleted: boolean = false) {
        this.deleted = deleted || false;
        await this.applyFilter(filter);
        this.loaded = true;
    }

    async reload(filter: (cipher: CipherView) => boolean = null, deleted: boolean = false) {
        this.loaded = false;
        this.ciphers = [];
        await this.load(filter, deleted);
    }

    async applyFilter(filter: (cipher: CipherView) => boolean = null) {
        this.filter = filter;
        await this.search(null);
    }

    async search(timeout: number = null, indexedCiphers?: CipherView[]) {
        this.searchPending = false;
        if (this.searchTimeout != null) {
            clearTimeout(this.searchTimeout);
        }
        if (timeout == null) {
            await this.doSearch(indexedCiphers);
            return;
        }
        this.searchPending = true;
        this.searchTimeout = setTimeout(async () => {
            await this.doSearch(indexedCiphers);
            this.searchPending = false;
        }, timeout);
    }

    selectCipher(cipher: CipherView) {
        this.onCipherClicked.emit(cipher);
    }

    rightClickCipher(cipher: CipherView) {
        this.onCipherRightClicked.emit(cipher);
    }

    addCipher() {
        this.onAddCipher.emit();
    }

    addCipherOptions() {
        this.onAddCipherOptions.emit();
    }

    isSearching() {
        return !this.searchPending && this.searchService.isSearchable(this.searchText);
    }

    protected deletedFilter: (cipher: CipherView) => boolean = c => c.isDeleted === this.deleted;

    protected async doSearch(indexedCiphers?: CipherView[]) {
        this.ciphers = await this.searchService.searchCiphers(this.searchText, [this.filter, this.deletedFilter], indexedCiphers);
    }
}