main.go

package main

import (
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"os"
	"strconv"
)

type Location struct {
	Lat float64 `json:"lat"`
	Lon float64 `json:"lon"`
}

func getLocation(city string) (lat float64, lon float64, err error) {
	response, err := http.Get("http://api.openweathermap.org/geo/1.0/direct?q=" + city + "&limit=1&appid=" + os.Getenv("OPENWEATHER_API_KEY"))

	if err != nil {
		fmt.Println("Something went wrong while getting the response:", err)
		return
	}

	// Make sure to close the response body
	defer response.Body.Close()


		var locations []Location

		if err := json.NewDecoder(response.Body).Decode(&locations); err != nil {
			fmt.Println("Something went wrong while decoding the response body:", err)
			return 0, 0, err
		}

	return locations[0].Lat, locations[0].Lon, nil
}

func main() {
	allArgs := os.Args

	if len(allArgs) < 2 {
		fmt.Println("Please provide a city name")
		return
	}

	city := allArgs[1]

	lat, lon, err := getLocation(city)

	if err != nil {
		fmt.Println("Something went wrong while getting the location:", err)
		return
	}

	weatherResponse, err := http.Get("https://api.openweathermap.org/data/3.0/onecall?lat=" + strconv.FormatFloat(lat, 'f', -1, 64) + "&lon=" + strconv.FormatFloat(lon, 'f', -1, 64) + "&appid=" + os.Getenv("OPENWEATHER_API_KEY"))

	if err != nil {
		fmt.Println("Something went wrong while getting the weather:", err)
		return
	}

	defer weatherResponse.Body.Close()

	weather, err := io.ReadAll(weatherResponse.Body)

	if err != nil {
		fmt.Println("Something went wrong while reading the weather:", err)
		return
	}

	fmt.Println("Weather:", string(weather))
}