import { NgModule, Optional, SkipSelf } from '@angular/core';
import { HttpClientModule } from '@angular/common/http';
import { HttpClientXsrfModule } from '@angular/common/http';
import { throwIfAlreadyLoaded, NaTranslateModule, NA_TRANSLATE_RESOURCES } from '@ng-arthur-mobile/core';
import { NaHttpService } from './na-http.service';
import { OverlayModule } from '@angular/cdk/overlay';
import { HttpTranslateLoader } from './interceptor/http-translate-loader';
import { NA_HTTP_INTERCEPTOR_PREPARABLE, NaHttpInterceptorPreparableHandler } from './interceptor/na-http-interceptor-preparable';
import { NaBaseurlInterceptorPreparable } from './interceptor/support/na-baseurl-interceptor-preparable';
import { Noop } from './interceptor/support/test';
import { NaParamsInterceptorPreparable } from './interceptor/support/na-params-interceptor-preparable';

export function TranslateResource() {
  return new HttpTranslateLoader();
}

/**
 * HTTP模块，该模块只允许导入一次！
 *
 * @export
 */
@NgModule({
  imports: [
    OverlayModule,
    HttpClientModule,
    NaTranslateModule,
    HttpClientXsrfModule.withOptions({
      cookieName: 'NA-XSRF-TOKEN',
      headerName: 'NA-X-XSRF-TOKEN',
    })
  ],
  exports: [
    HttpClientModule
  ],
  providers: [
    NaHttpService,
    NaHttpInterceptorPreparableHandler,
    { provide: NA_TRANSLATE_RESOURCES, useFactory: TranslateResource, multi: true },
    { provide: NA_HTTP_INTERCEPTOR_PREPARABLE, useClass: NaBaseurlInterceptorPreparable, deps: [NaHttpService], multi: true },
    { provide: NA_HTTP_INTERCEPTOR_PREPARABLE, useClass: NaParamsInterceptorPreparable, deps: [NaHttpService], multi: true },
    { provide: NA_HTTP_INTERCEPTOR_PREPARABLE, useClass: Noop, multi: true },
  ]
})
export class NaHttpModule {
  constructor(@Optional() @SkipSelf() parentModule: NaHttpModule) {
    throwIfAlreadyLoaded(parentModule, 'NaHttpModule');
  }
}