require('dotenv').config();
const debug = require('debug')('soundbirder:api:region');
const cache = require('./cache');
const axios = require('axios');

const OPENCAGE_API_KEY = process.env.OPENCAGE_API_KEY;
const OPENCAGE_API_URL = 'https://api.opencagedata.com/geocode/v1/json?q=<lat>+<lon>&key=<key>';    

async function getRegion(lat, lon) {
    const url = OPENCAGE_API_URL
        .replace('<lat>', lat)
        .replace('<lon>', lon)
        .replace('<key>', OPENCAGE_API_KEY);
    try {
        const cached = await cache.getCached(`region-${lat}-${lon}`);
        if (cached) {
            return cached;
        }
    } catch (error) {
        throw error;
    }
    return axios.get(url).then(response => {
        const { results } = response.data;
        const region = results[0].components;
        region.country_code = region.country_code.toUpperCase();
        cache.cacheResponse(url, region);
        return { country_code, country, state, county } = region;
    }).catch(error => {
        throw error;
    });
}

function getRegionCode({ country_code, country, state, county }) {
    return eBird.ref.region.list('subnational1', country_code)()
        .then(states => {
            console.log(states);
            const regionCode = states.find(region => region.name === state).code;
            return regionCode;
        }).catch(error => {
            throw error;
        });
}

module.exports = {
    getRegion,
}