import { Injectable } from '@angular/core';
import { Observable ,  Observer } from 'rxjs';
import {map} from 'rxjs/operators';
import { IListItem } from '../models/list.item';
import { IItem } from '../models/item';
import { HttpClient } from "@angular/common/http";
import { AppConfig } from "../shared/app.config";

@Injectable({
  providedIn: 'root',
})
export class FolderService {

  constructor(public httpClient: HttpClient, public appConfig: AppConfig) {
  }

  ApiEndpoint() {
    return this.appConfig.getConfig("apiEndPoint");
  }

  parseDates(item: any): IListItem {
    item.created = new Date(Date.parse(item.created));
    item.updated = new Date(Date.parse(item.updated));
    item.dataDate = new Date(Date.parse(item.dataDate));
    item.dataEndDate = new Date(Date.parse(item.dataEndDate));
    return item;
  }

    getFolder(code: string): Observable<IListItem> {
      return this.httpClient.get<IListItem>(`${this.ApiEndpoint()}/api/v1/folders/${code}`).pipe(map(i => this.parseDates(i)));            
    }

    getMyRoots(): Observable<IListItem[]> {
      return this.httpClient.get<IListItem[]>(`${this.ApiEndpoint()}/api/v1/folders/my_roots`).pipe(map(ia => ia.map(i => this.parseDates(i))));
    }    

    getFolderParents(code: string): Observable<IListItem[]> {
      return this.httpClient.get<IListItem[]>(`${this.ApiEndpoint()}/api/v1/folders/${code}/parents`).pipe(map(ia => ia.map(i => this.parseDates(i))));
    }

    getChildFolders(code: string): Observable<IListItem[]> {
      return this.httpClient.get<IListItem[]>(`${this.ApiEndpoint()}/api/v1/folders/${code}/listfolders`).pipe(map(ia => ia.map(i => this.parseDates(i))));
    }

    getItems(code: string,skip:number, take:number): Observable<IListItem[]> {
      return this.httpClient.get<IListItem[]>(`${this.ApiEndpoint()}/api/v1/folders/${code}/list?skip=${skip}&take=${take}`).pipe(map(ia => ia.map(i => this.parseDates(i))));
    }

    moveItem(itemCode: string, newParentCode: string): Observable<IListItem> {
        const body = { itemCode: itemCode,newParentCode: newParentCode };
      return this.httpClient.post<IListItem>(`${this.ApiEndpoint()}/api/v1/items/move`, body).pipe(map(i => this.parseDates(i)));
    }

    createFolder(folder: IItem): Observable<IListItem> {
      return this.httpClient.post<IListItem>(`${this.ApiEndpoint()}/api/v1/folders/`, folder).pipe(map(i => this.parseDates(i)));
    }
}