import 'reflect-metadata';
import { NgModule, ModuleWithProviders, Injector, Provider } from '@angular/core';
import { HttpClientModule } from '@angular/common/http';
import { Resource } from './resource.core';
import { Field, ToMany, ToOne, Model } from './resource.decorators';
import { ToManyRelation } from './relations/to-many';
import { ToOneRelation } from './relations/to-one';
import { InjectorContainer, ResourceModuleConfiguration, ResourceModuleConfigurationWithProviders,
	HttpClientOptions, toPlural, toDash, toPluralDash, HttpVerb, METAKEYS } from './utils';
import { Abstract as AbstractAdapters } from './request-handlers/abstract-adapters';
import { Abstract as AbstractBuilders } from './request-handlers/abstract-builders';
import { ToManyAdapter, ToOneAdapter, SimpleAdapter } from './request-handlers/default-adapters';
import { ToManyBuilder, ToOneBuilder, SimpleBuilder } from './request-handlers/default-builders';


/** @internal */
@NgModule({ imports: [HttpClientModule] })
export class ResourceRootModule {
	constructor(injector: Injector) {
		InjectorContainer.instance = injector;
	}
}

@NgModule({ imports: [HttpClientModule] })
class ResourceModule {
	static forRoot(options: ResourceModuleConfigurationWithProviders = {}): ModuleWithProviders {
		const config: Provider[] = [{ provide: ResourceModuleConfiguration, useValue: { rootPath: options.rootPath } }];
		return {
			ngModule: ResourceRootModule,
			providers: config.concat(options.requestHandler || [])
		};
	}
}

export {
	ResourceModule,
	Resource,
	Field,
	ToOne,
	ToMany,
	Model,
	ToManyRelation,
	ToOneRelation,
	AbstractAdapters,
	AbstractBuilders,
	ResourceModuleConfigurationWithProviders,
	ToManyAdapter,
	ToOneAdapter,
	SimpleAdapter,
	ToManyBuilder,
	ToOneBuilder,
	SimpleBuilder,
	ResourceModuleConfiguration,
	HttpClientOptions,
	toPlural,
	toDash,
	toPluralDash,
	HttpVerb,
	METAKEYS
};