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pigallery2/frontend/app/gallery/gallery.service.ts
2017-03-18 00:11:53 +01:00

112 lines
3.8 KiB
TypeScript

import {Injectable} from "@angular/core";
import {NetworkService} from "../model/network/network.service";
import {Message} from "../../../common/entities/Message";
import {ContentWrapper} from "../../../common/entities/ConentWrapper";
import {PhotoDTO} from "../../../common/entities/PhotoDTO";
import {DirectoryDTO} from "../../../common/entities/DirectoryDTO";
import {SearchTypes} from "../../../common/entities/AutoCompleteItem";
import {GalleryCacheService} from "./cache.gallery.service";
@Injectable()
export class GalleryService {
public content:ContentWrapper;
private lastDirectory: DirectoryDTO;
private searchId:any;
constructor(private networkService:NetworkService, private galleryCacheService:GalleryCacheService) {
this.content = new ContentWrapper();
}
lastRequest: {directory: any} = {
directory: null
};
public getDirectory(directoryName:string):Promise<Message<ContentWrapper>> {
this.content = new ContentWrapper();
this.content.directory = this.galleryCacheService.getDirectory(directoryName);
this.content.searchResult = null;
this.lastRequest.directory = directoryName;
return this.networkService.getJson("/gallery/content/" + directoryName).then(
(message:Message<ContentWrapper>) => {
if (!message.error && message.result) {
this.galleryCacheService.setDirectory(message.result.directory); //save it before adding references
if (this.lastRequest.directory != directoryName) {
return;
}
let addDir = (dir: DirectoryDTO) => {
dir.photos.forEach((photo: PhotoDTO) => {
photo.directory = dir;
});
dir.directories.forEach((directory: DirectoryDTO) => {
addDir(directory);
directory.parent = dir;
});
};
addDir(message.result.directory);
this.lastDirectory = message.result.directory;
this.content = message.result;
}
return message;
});
}
//TODO: cache
public search(text:string, type?:SearchTypes):Promise<Message<ContentWrapper>> {
clearTimeout(this.searchId);
if (text === null || text === '') {
return Promise.resolve(new Message(null, null));
}
let queryString = "/search/" + text;
if (type) {
queryString += "?type=" + type;
}
return this.networkService.getJson(queryString).then(
(message:Message<ContentWrapper>) => {
if (!message.error && message.result) {
this.content = message.result;
}
return message;
});
}
//TODO: cache (together with normal search)
public instantSearch(text:string):Promise<Message<ContentWrapper>> {
if (text === null || text === '') {
this.content.directory = this.lastDirectory;
this.content.searchResult = null;
clearTimeout(this.searchId);
return Promise.resolve(new Message(null, null));
}
if (this.searchId != null) {
clearTimeout(this.searchId);
}
this.searchId = setTimeout(() => {
this.search(text);
this.searchId = null;
}, 3000); //TODO: set timeout to config
return this.networkService.getJson("/instant-search/" + text).then(
(message:Message<ContentWrapper>) => {
if (!message.error && message.result) {
this.content = message.result;
}
return message;
});
}
}