136 lines
3.3 KiB
TypeScript
136 lines
3.3 KiB
TypeScript
import { Injectable } from '@angular/core';
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export interface SitemapUrl {
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loc: string;
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lastmod?: string;
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changefreq?: 'always' | 'hourly' | 'daily' | 'weekly' | 'monthly' | 'yearly' | 'never';
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priority?: number;
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}
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@Injectable({
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providedIn: 'root'
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})
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export class SitemapService {
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private readonly baseUrl = 'https://biz-match.com';
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/**
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* Generate XML sitemap content
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*/
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generateSitemap(urls: SitemapUrl[]): string {
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const urlElements = urls.map(url => this.generateUrlElement(url)).join('\n ');
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return `<?xml version="1.0" encoding="UTF-8"?>
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<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
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${urlElements}
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</urlset>`;
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}
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/**
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* Generate a single URL element for the sitemap
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*/
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private generateUrlElement(url: SitemapUrl): string {
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let element = `<url>\n <loc>${url.loc}</loc>`;
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if (url.lastmod) {
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element += `\n <lastmod>${url.lastmod}</lastmod>`;
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}
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if (url.changefreq) {
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element += `\n <changefreq>${url.changefreq}</changefreq>`;
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}
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if (url.priority !== undefined) {
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element += `\n <priority>${url.priority.toFixed(1)}</priority>`;
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}
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element += '\n </url>';
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return element;
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}
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/**
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* Generate sitemap URLs for static pages
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*/
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getStaticPageUrls(): SitemapUrl[] {
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return [
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{
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loc: `${this.baseUrl}/`,
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changefreq: 'daily',
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priority: 1.0
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},
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{
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loc: `${this.baseUrl}/home`,
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changefreq: 'daily',
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priority: 1.0
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},
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{
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loc: `${this.baseUrl}/listings`,
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changefreq: 'daily',
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priority: 0.9
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},
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{
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loc: `${this.baseUrl}/listings-2`,
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changefreq: 'daily',
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priority: 0.8
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},
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{
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loc: `${this.baseUrl}/listings-3`,
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changefreq: 'daily',
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priority: 0.8
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},
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{
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loc: `${this.baseUrl}/listings-4`,
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changefreq: 'daily',
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priority: 0.8
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}
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];
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}
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/**
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* Generate sitemap URLs for business listings
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*/
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generateBusinessListingUrls(listings: any[]): SitemapUrl[] {
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return listings.map(listing => ({
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loc: `${this.baseUrl}/details-business-listing/${listing.id}`,
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lastmod: this.formatDate(listing.updated || listing.created),
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changefreq: 'weekly' as const,
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priority: 0.8
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}));
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}
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/**
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* Generate sitemap URLs for commercial property listings
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*/
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generateCommercialPropertyUrls(properties: any[]): SitemapUrl[] {
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return properties.map(property => ({
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loc: `${this.baseUrl}/details-commercial-property/${property.id}`,
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lastmod: this.formatDate(property.updated || property.created),
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changefreq: 'weekly' as const,
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priority: 0.8
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}));
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}
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/**
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* Format date to ISO 8601 format (YYYY-MM-DD)
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*/
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private formatDate(date: Date | string): string {
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const d = typeof date === 'string' ? new Date(date) : date;
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return d.toISOString().split('T')[0];
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}
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/**
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* Generate complete sitemap with all URLs
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*/
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async generateCompleteSitemap(
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businessListings: any[],
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commercialProperties: any[]
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): Promise<string> {
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const allUrls = [
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...this.getStaticPageUrls(),
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...this.generateBusinessListingUrls(businessListings),
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...this.generateCommercialPropertyUrls(commercialProperties)
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];
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return this.generateSitemap(allUrls);
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}
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}
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