import axios from 'axios';

export interface SearchResult {
    title: string;
    snippet: string;
    link: string;
}

export class SearchService {
    private apiKey: string | undefined;

    constructor() {
        this.apiKey = process.env.SERPER_API_KEY;
    }

    /**
     * Performs a Google Search using Serper.dev API.
     */
    async search(query: string): Promise<SearchResult[]> {
        if (!this.apiKey) {
            console.warn('[SEARCH_SERVICE] No SERPER_API_KEY found. Returning mock results.');
            return [
                {
                    title: `Données pour ${query}`,
                    snippet: "Le marché local est en croissance de 10-15% par an. La population cible est estimée à plusieurs milliers de personnes dans cette zone.",
                    link: "https://xamle.sn"
                }
            ];
        }

        try {
            const response = await axios.post('https://google.serper.dev/search', {
                q: query,
                gl: 'sn', // Search in Senegal
                hl: 'fr'  // Language French
            }, {
                headers: {
                    'X-API-KEY': this.apiKey,
                    'Content-Type': 'application/json'
                }
            });

            const results = response.data.organic || [];
            return results.slice(0, 3).map((r: any) => ({
                title: r.title,
                snippet: r.snippet,
                link: r.link
            }));
        } catch (err: unknown) {
            console.error('[SEARCH_SERVICE] Search failed:', (err instanceof Error ? (err instanceof Error ? err.message : String(err)) : String(err)));
            return [];
        }
    }
}

export const searchService = new SearchService();