VancedManager/app/src/main/java/com/vanced/manager/utils/LanguageHelper.kt

package com.vanced.manager.utils

import android.app.Activity
import android.content.Context
import android.content.Intent
import android.content.res.Resources
import android.net.Uri
import android.os.Build
import android.os.LocaleList
import android.provider.Settings
import androidx.annotation.RequiresApi
import com.crowdin.platform.Crowdin
import com.vanced.manager.R
import com.vanced.manager.utils.InternetTools.vanced
import java.util.*

object LanguageHelper {

    fun getLanguageFormat(context: Context, language: String): String {
        return when {
            language == "System Default" -> context.getString(R.string.system_default)
            language.length > 2 -> {
                val loc = Locale(
                    language.substring(0, language.length - 3),
                    language.substring(language.length - 2)
                )
                loc.getDisplayName(loc).capitalize(Locale.ENGLISH)
            }
            else -> {
                val loc = Locale(language)
                loc.getDisplayName(loc).capitalize(Locale.ENGLISH)
            }
        }

    }

    @Suppress("DEPRECATION")
    fun getDefaultVancedLanguages(): String {
        val serverLangs = vanced.value?.array("langs") ?: mutableListOf("")
        val sysLocales = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) Resources.getSystem().configuration.locales.toLangTags() else arrayOf(Resources.getSystem().configuration.locale.language)
        val finalLangs = mutableListOf<String>()
        sysLocales.forEach { sysLocale ->
            when {
                sysLocale == "en" -> finalLangs.add(sysLocale)
                serverLangs.contains(sysLocale) -> finalLangs.add(sysLocale)
            }
        }

        return finalLangs.distinct().sorted().joinToString(", ")
    }

    @RequiresApi(Build.VERSION_CODES.N)
    fun LocaleList.toLangTags(): Array<String> {
        val langTags: Array<String> = this.toLanguageTags().split(",").toTypedArray()
        for (i in 0 until this.size()) {
            langTags[i] = langTags[i].substring(0, 2)
        }
        return langTags
    }

    fun Activity.authCrowdin() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (!Settings.canDrawOverlays(this)) {
                val intent = Intent(
                    Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
                    Uri.parse("package:$packageName")
                )
                startActivityForResult(intent, 69)
                return
            }
            Crowdin.authorize(this)
        }
    }

    fun Activity.onActivityResult(requestCode: Int) {
        if (requestCode == 69 && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (Settings.canDrawOverlays(this)) {
                Crowdin.authorize(this)
            }
        }
    }

}