import { onRequest } from "firebase-functions/v2/https";
import { Request } from "firebase-functions/v2/https";
import * as express from "express";
import { logger } from "../shared/config";
import axios from "axios";
import { corsHandler } from "../shared/middleware";

export const getPlacesAutocomplete = onRequest({
    region: '#{SERVICES_RGN}#'
}, async (request: Request, response: express.Response) => {
    return corsHandler(request, response, async () => {
        try {
            const { input, location, radius, types, components, sessiontoken } = request.query;

            if (!input) {
                response.status(400).json({
                    error: 'Input parameter is required for autocomplete'
                });
                return;
            }

            const apiKey = process.env.GOOGLE_MAPS_API_KEY;
            if (!apiKey) {
                logger.error('Google Places API key is not configured');
                response.status(500).json({ error: 'Server configuration error' });
                return;
            }

            const url = 'https://maps.googleapis.com/maps/api/place/autocomplete/json';
            const params: any = {
                key: apiKey,
                input: input
            };

            if (location && radius) {
                params.location = location;
                params.radius = radius;
            }

            if (types) {
                params.types = types;
            }

            if (components) {
                params.components = components;
            }

            if (sessiontoken) {
                params.sessiontoken = sessiontoken;
            }

            const result = await axios.get(url, { params });

            logger.info('Google Places Autocomplete API request completed successfully');
            response.json(result.data);
        } catch (error) {
            logger.error('Error fetching place autocomplete suggestions:', error);
            response.status(500).json({
                success: false,
                error: error instanceof Error ? error.message : String(error)
            });
        }
    });
});