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import {Injectable} from "@angular/core";
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import {HttpClient} from "@angular/common/http";
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import {Observable} from "rxjs";
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import {EnvProperties} from "../../utils/properties/env-properties";
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import {map} from "rxjs/operators";
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import {properties} from "../../../../environments/environment";
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export interface AnnotationTarget {
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id: string;
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url: string;
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}
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export interface Annotation {
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text: string;
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type: 'semantic' | 'keyword' | 'comment';
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targets?: AnnotationTarget[];
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targetSize?: number;
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}
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@Injectable({
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providedIn: "root"
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})
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export class AnnotationService {
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api = 'api/';
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constructor(private http: HttpClient) {
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}
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getAllAnnotations(source: string): Observable<Annotation[]> {
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let url = properties.b2noteAPIURL + this.api + 'annotations?target-id[]=' + encodeURIComponent(source);
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return this.http.get<Annotation[]>(url).pipe(map((response: any[]) => {
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return this.parseAnnotations(response);
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}));
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}
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getAnnotationTargets(value: string, type: 'semantic' | 'keyword' | 'comment'): Observable<AnnotationTarget[]> {
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let url = properties.b2noteAPIURL + this.api + 'annotations?value=' + encodeURIComponent(value) + '&type[]=' + type;
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return this.http.get<AnnotationTarget[]>(url).pipe(map((response: any[]) => {
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return this.parseAnnotationTargets(response);
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}));
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}
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private parseAnnotations(response: any[]): Annotation[] {
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let annotations: Annotation[] = [];
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if (response && response.length > 0) {
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response.forEach(value => {
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if (value.visibility === 'public') {
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let body = value.body;
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if (body.type === 'TextualBody') {
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if (body.purpose === 'tagging') {
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annotations.push({
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text: body.value,
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type: "keyword"
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});
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} else {
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annotations.push({
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text: body.value,
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type: "comment"
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});
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}
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} else {
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let items = body.items;
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let text: string = null;
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items.forEach(item => {
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if (item.type === 'TextualBody') {
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text = item.value;
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}
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});
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annotations.push({
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text: text,
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type: "semantic"
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});
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}
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}
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});
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}
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return annotations;
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}
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private parseAnnotationTargets(response: any[]): AnnotationTarget[] {
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let targets: AnnotationTarget[] = [];
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if (response && response.length > 0) {
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response.forEach(value => {
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if (value.visibility === 'public') {
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targets.push({
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id: value.target.id,
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url: value.target.source
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});
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}
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});
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}
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return targets;
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}
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}
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