import { Component, Inject, OnInit, Injectable } from '@angular/core';
import { Http, RequestOptions } from '@angular/http';
import { Headers } from '@angular/http';

import { Observable } from 'rxjs';
import { catchError } from 'rxjs/operators';

// import { Hero } from './hero';
import { HttpErrorHandler, HandleError } from '../auth/http-error-handler.service';
import { AuthService } from '../auth/auth.service';
import { HttpClient, HttpParams } from '@angular/common/http';
import { HttpHeaders } from '@angular/common/http';
import { RequireInteractiveControl } from '../interface/Interactive Component/RequireInteractiveControl';

@Injectable()
export class BaseService<T extends RequireInteractiveControl> {
    // config: Config;
    public handleError: HandleError;

    public mode: string;
    public baseu: string;
    public generalhttp: HttpClient;
    constructor(
        public authService: AuthService,
        public httpErrorHandler: HttpErrorHandler,
        public http: HttpClient,
        public baseUrl: string
        , public objectname: string, public subrouteurl: string = "") {
        this.handleError = httpErrorHandler.createHandleError('BaseService');
        this.baseu = baseUrl;
        this.generalhttp = http;
    }


    httpHeaders = new HttpHeaders()
        .set('Content-Type', 'application/json')
        .set('Authorization', this.authService.getAuthorizationHeaderValue());

    GetHeaders(): HttpHeaders {
        var h = this.httpHeaders.append('OC', this.authService.getSelectedOc());
        return h;
    }


    optionss = {
        headers: new HttpHeaders({ 'Content-Type': 'application/json', 'Authorization': this.authService.getAuthorizationHeaderValue() }),
        params: new HttpParams()
    };
    Get(): Observable<T[]> {

        if (this.subrouteurl == "") {
            return this.generalhttp.get<T[]>(this.baseu + 'api/' + this.objectname, this.optionss)

                .pipe(
                    catchError(this.handleError('GetBaseService', []))
                );
        }
        else {
            return this.generalhttp.get<T[]>(this.baseu + 'api/' + this.subrouteurl + this.objectname, this.optionss)

                .pipe(
                    catchError(this.handleError('GetBaseService', []))
                );
        }

    }

    GetById(id: any): Observable<T> {

        if (this.subrouteurl == "") {
            return this.generalhttp.get<T>(this.baseu + 'api/' + this.objectname + '/' + id, this.optionss)

                .pipe(
                    catchError(this.handleError('GetBaseService', null))
                );
        }
        else {
            return this.generalhttp.get<T>(this.baseu + 'api/' + this.subrouteurl + this.objectname + '/' + id, this.optionss)

                .pipe(
                    catchError(this.handleError('GetBaseService', null))
                );
        }

    }

    Create(object: T): Observable<T> {
        // console.log(object);
        return this.generalhttp.post<T>(this.baseu + 'api/' + this.objectname,
            object,
            this.optionss).pipe(
                catchError(this.handleError('CreateBaseService', null))
            );

    }

    Update(object: T) {
        return this.generalhttp.put<T>(this.baseu + 'api/' + this.objectname + "/" + object.id, object, this.optionss).pipe(
            catchError(this.handleError('UpdateBaseService', null))
        );

    }

    Delete(object: T) {
        return this.generalhttp.delete(this.baseu + 'api/' + this.objectname + "/" + object.id, this.optionss).pipe(
            catchError(this.handleError('DeleteBaseService', []))
        );

    }

}