GigaProjects

package com.gigaprojects.gigaweather

import java.io.BufferedReader
import java.io.InputStreamReader
import java.net.HttpURLConnection
import java.net.URL
import java.nio.charset.StandardCharsets

object NetworkUtils {
    fun httpGet(urlString: String, token: String? = null): String {
        val url = URL(urlString)
        val c = url.openConnection() as HttpURLConnection
        c.setRequestProperty("User-Agent", "GigaWeatherApp")
        token?.let { c.setRequestProperty("Authorization", "Bearer $it") }
        c.connectTimeout = 60000
        c.readTimeout = 60000
        
        val responseCode = c.responseCode
        val inputStream = if (responseCode in 200..299) c.inputStream else c.errorStream
        
        if (inputStream == null) {
            throw Exception("HTTP Error $responseCode: No response body")
        }

        BufferedReader(InputStreamReader(inputStream, StandardCharsets.UTF_8)).use { reader ->
            val sb = StringBuilder()
            var line: String?
            while (reader.readLine().also { line = it } != null) sb.append(line)
            
            if (responseCode !in 200..299) {
                val errorMsg = sb.toString()
                throw Exception("HTTP Error $responseCode: $errorMsg")
            }
            
            return sb.toString()
        }
    }
}