import { Injectable, OnInit } from '@angular/core';
import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http';
import { Page, DsmConf, ResourceType, Protocol, WfHistoryEntry, SimpleResource, Context, ContextNode, Vocabulary, VocabularyTerm, KeyValue, BrowseTerm, Datasource, MDStore, MDStoreVersion, MDStoreRecord, EmailTemplate, WfConf, WfSubscription, WfProcessStatus, WfSection } from './is.model';
import { FormGroup } from '@angular/forms';
import { MatSnackBar } from '@angular/material/snack-bar';
import { firstValueFrom, Observable } from 'rxjs';

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


	constructor(public client: HttpClient, public snackBar: MatSnackBar) {
	}


	loadResourceTypes(onSuccess: Function) {
		this.httpGet<ResourceType[]>("/ajax/resourceTypes", onSuccess)
	}


	loadResourceType(id: string, onSuccess: Function) {
		this.httpGet<ResourceType>("/ajax/resourceTypes/" + encodeURIComponent(id), onSuccess);
	}

	loadInfo(onSuccess: Function): void {
		this.httpGet<any[]>("/ajax/info/", onSuccess);
	}

	loadProtocols(onSuccess: Function): void {
		this.httpGet<Protocol[]>("/ajax/protocols/", onSuccess);
	}

	loadSimpleResources(type: string, onSuccess: Function): void {
		this.httpGet<SimpleResource[]>("/ajax/resources/" + encodeURIComponent(type), onSuccess);
	}

	loadSimpleResourceContent(id: any, onSuccess: Function): void {
		const headers = new HttpHeaders().set('Content-Type', 'text/plain; charset=utf-8');
		this.httpGetWithOptions<string>("/ajax/resources/" + encodeURIComponent(id) + '/content', {
			headers, responseType: 'text' as 'json'
		}, onSuccess);
	}

	saveSimpleResourceMedatata(res: SimpleResource, onSuccess: Function, relatedForm?: FormGroup): void {
		this.httpPost('/ajax/resources/' + encodeURIComponent(res.id) + '/metadata', res, onSuccess, relatedForm);
	}

	saveSimpleResourceContent(id: string, content: string, onSuccess: Function, relatedForm?: FormGroup): void {
		const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
		let body = new HttpParams().set('content', content);
		this.httpPostWithOptions('/ajax/resources/' + encodeURIComponent(id) + '/content', body, { headers: headers }, onSuccess, relatedForm);
	}

	addSimpleResource(name: string, type: string, subtype: string, description: string, content: string, onSuccess: Function, relatedForm?: FormGroup): void {
		const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')
		let body = new HttpParams()
			.set('name', name)
			.set('type', type)
			.set('subtype', subtype)
			.set('description', description)
			.set('content', content);
		this.httpPostWithOptions('/ajax/resources/', body, { headers: headers }, onSuccess, relatedForm);
	}

	deleteSimpleResource(resourceId: string, onSuccess: Function): void {
		this.httpDelete('/ajax/resources/' + encodeURIComponent(resourceId), onSuccess);
	}

	loadWfHistory(total: number, from: number, to: number, onSuccess: Function): void {
		let params = new HttpParams();
		if (total && total > 0) { params = params.append('total', total); }
		if (from && from > 0) { params = params.append('from', from); }
		if (to && to > 0) { params = params.append('to', to); }

		this.httpGetWithOptions<WfHistoryEntry[]>('/ajax/wf_history/', { params: params }, onSuccess);
	}

	loadContexts(onSuccess: Function): void {
		this.httpGet<Context[]>('./ajax/contexts/', onSuccess);
	}

	loadContext(ctxId: string, onSuccess: Function): void {
		this.httpGet<Context>('./ajax/contexts/' + encodeURIComponent(ctxId), onSuccess);
	}

	loadContextCategories(ctxId: string, onSuccess: Function): void {
		this.httpGet<ContextNode[]>('./ajax/contexts/' + encodeURIComponent(ctxId) + '/categories', onSuccess);
	}

	loadContextConcepts(level: number, nodeId: string, onSuccess: Function): void {
		this.httpGet<ContextNode[]>('./ajax/contexts/' + encodeURIComponent(level) + '/' + encodeURIComponent(nodeId) + '/concepts', onSuccess);
	}

	loadVocabularies(onSuccess: Function): void {
		this.httpGet<Vocabulary[]>('./ajax/vocs/', onSuccess);
	}

	loadVocabulary(vocId: string, onSuccess: Function): void {
		this.httpGet<Vocabulary>('./ajax/vocs/' + encodeURIComponent(vocId), onSuccess);
	}

	loadVocabularyTerms(vocId: string, onSuccess: Function): void {
		this.httpGet<VocabularyTerm[]>('./ajax/vocs/' + encodeURIComponent(vocId) + '/terms', onSuccess);
	}

	saveVocabulary(voc: Vocabulary, onSuccess: Function, relatedForm?: FormGroup): void {
		this.httpPost('./ajax/vocs/', voc, onSuccess, relatedForm);
	}

	saveVocabularyTerm(vocId: string, term: VocabularyTerm, onSuccess: Function, relatedForm?: FormGroup): void {
		this.httpPost('./ajax/vocs/' + encodeURIComponent(vocId) + '/terms', term, onSuccess, relatedForm);
	}

	deleteVocabulary(vocId: string, onSuccess: Function): void {
		this.httpDelete('./ajax/vocs/' + encodeURIComponent(vocId), onSuccess);
	}

	deleteVocabularyTerm(vocId: string, termCode: string, onSuccess: Function): void {
		this.httpDelete('./ajax/vocs/'
			+ encodeURIComponent(vocId)
			+ '/terms/'
			+ encodeURIComponent(termCode)
			, onSuccess);
	}

	dsmConf(onSuccess: Function) {
		this.httpGet<DsmConf>('./ajax/dsm/conf', onSuccess);
	}

	dsmBrowsableFields(onSuccess: Function) {
		this.httpGet<KeyValue[]>('./ajax/dsm/browsableFields', onSuccess);
	}

	dsmBrowse(field: string, onSuccess: Function) {
		this.httpGet<BrowseTerm[]>('./ajax/dsm/browse/' + encodeURIComponent(field), onSuccess);
	}

	dsmSearchByField(field: string, value: string, page: number, pageSize: number, onSuccess: Function) {
		this.httpGet<Page<Datasource>>('./ajax/dsm/searchByField/' + encodeURIComponent(field) + '/' + page + '/' + pageSize + '?value=' + encodeURIComponent(value), onSuccess);
	}

	dsmSearch(value: string, page: number, pageSize: number, onSuccess: Function) {
		this.httpGet<Page<Datasource>>('./ajax/dsm/search/' + page + '/' + pageSize + '?value=' + encodeURIComponent(value), onSuccess);
	}

	loadMDStores(onSuccess: Function): void {
		this.httpGet<MDStore[]>("/ajax/mdstores/", onSuccess);
	}

	loadMDStore(mdId: string, onSuccess: Function): void {
		this.httpGet<MDStore>('./ajax/mdstores/mdstore/' + encodeURIComponent(mdId), onSuccess);
	}

	addMDStore(format: string, layout: string, interpretation: string, type: string, dsName: string, dsId: string, apiId: string, onSuccess: Function, relatedForm?: FormGroup) {
		const headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded')

		let body = new HttpParams()
			.set('dsName', dsName)
			.set('dsId', dsId)
			.set('apiId', apiId);

		this.httpPostWithOptions('/ajax/mdstores/new/'
			+ encodeURIComponent(format)
			+ '/'
			+ encodeURIComponent(layout)
			+ '/'
			+ encodeURIComponent(interpretation)
			+ '/'
			+ encodeURIComponent(type),
			body, { headers: headers }, onSuccess, relatedForm);
	}

	deleteMDStore(mdId: string, onSuccess: Function): void {
		this.httpDelete('./ajax/mdstores/mdstore/' + encodeURIComponent(mdId), onSuccess);
	}

	prepareNewMDStoreVersion(mdId: string, onSuccess: Function): void {
		this.httpGet<MDStoreVersion>('./ajax/mdstores/mdstore/' + encodeURIComponent(mdId) + '/newVersion', onSuccess);
	}

	commitMDStoreVersion(versionId: string, size: number, onSuccess: Function) {
		this.httpGet<any>('./ajax/mdstores/version/' + encodeURIComponent(versionId) + '/commit/' + size, onSuccess);
	}

	abortMDStoreVersion(versionId: string, onSuccess: Function) {
		this.httpGet<any>('./ajax/mdstores/version/' + encodeURIComponent(versionId) + '/abort', onSuccess);
	}

	deleteMDStoreVersion(versionId: string, onSuccess: Function) {
		this.httpDelete('./ajax/mdstores/version/' + encodeURIComponent(versionId), onSuccess);
	}

	resetReadingMDStoreVersion(versionId: string, onSuccess: Function) {
		this.httpGet<any>('./ajax/mdstores/version/' + encodeURIComponent(versionId) + '/resetReading', onSuccess);
	}

	loadMDStoreVersions(mdId: string, onSuccess: Function): void {
		this.httpGet<MDStoreVersion[]>('./ajax/mdstores/mdstore/' + encodeURIComponent(mdId) + '/versions', onSuccess);
	}

	loadMDStoreVersion(versionId: string, onSuccess: Function): void {
		this.httpGet<MDStoreVersion>('./ajax/mdstores/version/' + encodeURIComponent(versionId), onSuccess);
	}

	loadMDStoreVersionRecords(versionId: string, limit: number, onSuccess: Function): void {
		this.httpGet<MDStoreRecord[]>('./ajax/mdstores/version/' + encodeURIComponent(versionId) + '/content/' + limit, onSuccess);
	}

	testCleaning(rule: string, xml: string, onSuccess: Function, relatedForm?: FormGroup): void {
		var headers = new HttpHeaders().set('Content-Type', 'text/plain; charset=utf-8');
		this.httpPostWithOptions('./ajax/mapping/clean?rule=' + encodeURIComponent(rule), xml, { headers, responseType: 'text' as 'json' }, onSuccess, relatedForm);
	}

	loadEmailTemplates(onSuccess: Function): void {
		this.httpGet<EmailTemplate[]>('./ajax/templates/email/', onSuccess);
	}

	saveEmailTemplate(email: EmailTemplate, onSuccess: Function, relatedForm?: FormGroup): void {
		this.httpPost('./ajax/templates/email/', email, onSuccess, relatedForm);
	}

	deleteEmailTemplate(id: string, onSuccess: Function): void {
		this.httpDelete('./ajax/templates/email/' + encodeURIComponent(id), onSuccess);
	}
	loadWfSections(onSuccess: Function) {
		this.httpGet<WfSection[]>("/ajax/wfs/sections", onSuccess)
	}

	loadWfConfigurations(sectionId: string, onSuccess: Function): void {
		this.httpGet<KeyValue[]>('./ajax/wfs/sections/' + encodeURIComponent(sectionId), onSuccess);
	}

	loadWfConfiguration(id: string, onSuccess: Function): void {
		this.httpGet<WfConf>('./ajax/wfs/conf/' + encodeURIComponent(id), onSuccess);
	}

	saveWfConfiguration(conf: WfConf, onSuccess: Function, relatedForm?: FormGroup): void {
		this.httpPost('./ajax/wfs/conf', conf, onSuccess, relatedForm);
	}

	deleteWfConfiguration(id: string, onSuccess: Function): void {
		this.httpDelete('./ajax/wfs/conf/' + encodeURIComponent(id), onSuccess);
	}

	startWfConfiguration(id: string, onSuccess: Function): void {
		this.httpGet<WfProcessStatus>('./ajax/wfs/conf/' + encodeURIComponent(id) + '/start', onSuccess);
	}

	findProcess(id: string, onSuccess: Function): void {
		this.httpGet<WfProcessStatus>('./ajax/wfs/process/' + encodeURIComponent(id), onSuccess);
	}

	killProcess(id: string, onSuccess: Function): void {
		this.httpDelete('./ajax/wfs/process/' + encodeURIComponent(id), onSuccess);
	}

	findWfSubscriptions(id: string, onSuccess: Function): void {
		this.httpGet<WfSubscription[]>('./ajax/wfs/conf/' + encodeURIComponent(id) + '/subscriptions', onSuccess);
	}

	saveWfSubscriptions(id: string, subscriptions: WfSubscription[], onSuccess: Function, relatedForm?: FormGroup): void {
		this.httpPost('./ajax/wfs/conf/' + encodeURIComponent(id) + '/subscriptions', subscriptions, onSuccess, relatedForm);
	}

	private httpGet<T>(url: string, onSuccess: Function) {
		this.client.get<T>(url).subscribe({
			next: data => onSuccess(data),
			error: error => this.showError(error)
		});
	}

	private httpGetWithOptions<T>(url: string, options: any, onSuccess: Function) {
		this.client.get<T>(url, options).subscribe({
			next: data => onSuccess(data),
			error: error => this.showError(error)
		});
	}

	private httpDelete(url: string, onSuccess: Function) {
		this.client.delete<void>(url).subscribe({
			next: data => onSuccess(data),
			error: error => this.showError(error)
		});
	}

	private httpPost(url: string, body: any, onSuccess: Function, relatedForm?: FormGroup) {
		this.client.post<void>(url, body).subscribe({
			next: data => onSuccess(data),
			error: error => this.showError(error, relatedForm)
		});
	}

	private httpPostWithOptions(url: string, body: any, options: any, onSuccess: Function, relatedForm?: FormGroup) {
		this.client.post<void>(url, body, options).subscribe({
			next: data => onSuccess(data),
			error: error => this.showError(error, relatedForm)
		});
	}

	private showError(error: any, form?: FormGroup) {

		console.log(error);

		const msg = this.errorMessage(error);
		if (form) {
			form.setErrors({ serverError: msg })
		} else if (this.snackBar) {
			this.snackBar.open(msg, 'ERROR', {
				duration: 5000,
			});
		} else {
			alert(msg);
		}
	}

	private errorMessage(error: any) {
		if (error.error && error.error.message) {
			return error.error.message;
		} else if (error.message) {
			return error.message;
		} else {
			return 'Generic server side error';
		}
	}

}