module.exports = async (dbConn) => {
    const regions = await dbConn.query(
        `SELECT regions.id AS region_id,
                regions.region AS name,
                countries.country AS country,
                regions.description AS description,
                rcma.temperature_mean,
                rcma.temperature_mean_min,
                rcma.temperature_mean_max,
                rcma.percipitation,
                rcma.raindays,
                rcma.sunshine,
                rcma.humidity,
                regions_byt.average_per_day,
                regions_byt.accomodation,
                regions_byt.food,
                regions_byt.water,
                regions_byt.local_transportation,
                regions_byt.entertainment,
                regions_byt.tips_and_handouts,
                regions_byt.scams_robberies_and_mishaps,
                regions_byt.alcohol
        FROM regions
        JOIN countries ON regions.country_id = countries.id
        JOIN (SELECT rcma.region_id, 
                GROUP_CONCAT(IFNULL(rcma.temperature_mean,"") ORDER BY rcma.month SEPARATOR ', ') AS temperature_mean, 
                GROUP_CONCAT(IFNULL(rcma.temperature_mean_min, "") ORDER BY rcma.month SEPARATOR ', ') AS temperature_mean_min, 
                GROUP_CONCAT(IFNULL(rcma.temperature_mean_max, "") ORDER BY rcma.month SEPARATOR ', ') AS temperature_mean_max, 
                GROUP_CONCAT(IFNULL(rcma.percipitation, "") ORDER BY rcma.month SEPARATOR ', ') AS percipitation, 
                GROUP_CONCAT(IFNULL(rcma.raindays, "") ORDER BY rcma.month SEPARATOR ', ') AS raindays, 
                GROUP_CONCAT(IFNULL(rcma.sunshine, "") ORDER BY rcma.month SEPARATOR ', ') AS sunshine, 
                GROUP_CONCAT(IFNULL(rcma.humidity, "") ORDER BY rcma.month SEPARATOR ', ') AS humidity
              FROM region_climate_monthly_avg AS rcma
              GROUP BY rcma.region_id) rcma ON rcma.region_id = regions.id
        JOIN regions_byt ON regions.id = regions_byt.region_id
        WHERE regions_byt.travelstyle = 1`
    );

    for (k = 0; k < regions.length; k++) {
        if (regions[k].temperature_mean !== null) {
            const temperature_mean = regions[k].temperature_mean
            regions[k].temperature_mean = temperature_mean.split(",");
            for (i = 0; i < regions[k].temperature_mean.length; i++) {
                regions[k].temperature_mean[i] = parseFloat(regions[k].temperature_mean[i])
            }
        }
        if (regions[k].temperature_mean_min !== null) {
            const temperature_mean_min = regions[k].temperature_mean_min
            regions[k].temperature_mean_min = temperature_mean_min.split(",");
            for (i = 0; i < regions[k].temperature_mean_min.length; i++) {
                regions[k].temperature_mean_min[i] = parseFloat(regions[k].temperature_mean_min[i])
            }
        }
        if (regions[k].temperature_mean_max !== null) {
            const temperature_mean_max = regions[k].temperature_mean_max
            regions[k].temperature_mean_max = temperature_mean_max.split(",");
            for (i = 0; i < regions[k].temperature_mean_max.length; i++) {
                regions[k].temperature_mean_max[i] = parseFloat(regions[k].temperature_mean_max[i])
            }

        }
        if (regions[k].percipitation !== null) {
            const percipitation = regions[k].percipitation
            regions[k].percipitation = percipitation.split(",");
            for (i = 0; i < regions[k].percipitation.length; i++) {
                regions[k].percipitation[i] = parseFloat(regions[k].percipitation[i])
            }
        }
        if (regions[k].raindays !== null) {
            const raindays = regions[k].raindays
            regions[k].raindays = raindays.split(",");
            for (i = 0; i < regions[k].raindays.length; i++) {
                regions[k].raindays[i] = parseFloat(regions[k].raindays[i])
            }
        }
        if (regions[k].sunshine !== null) {
            const sunshine = regions[k].sunshine
            regions[k].sunshine = sunshine.split(",");
            for (i = 0; i < regions[k].sunshine.length; i++) {
                regions[k].sunshine[i] = parseFloat(regions[k].sunshine[i])
            }
        }
        if (regions[k].humidity !== null) {
            const humidity = regions[k].humidity
            regions[k].humidity = humidity.split(",");
            for (i = 0; i < regions[k].humidity.length; i++) {
                regions[k].humidity[i] = parseFloat(regions[k].humidity[i])
            }
        }
    }
    return regions;
};