package com.aistudio.bonjuteri.jwlry.data

import android.content.Context
import android.util.Log
import com.aistudio.bonjuteri.jwlry.R
import com.google.firebase.FirebaseApp
import com.google.firebase.firestore.FirebaseFirestore
import com.google.firebase.firestore.FirebaseFirestoreException

object FirestoreHelper {
    private const val TAG = "FirestoreHelper"

    fun getFirestore(context: Context): FirebaseFirestore {
        return try {
            val dbId = context.getString(R.string.firestore_database_id)
            if (dbId.isNotBlank() && dbId != "(default)") {
                FirebaseFirestore.getInstance(FirebaseApp.getInstance(), dbId)
            } else {
                FirebaseFirestore.getInstance()
            }
        } catch (e: Exception) {
            Log.w(TAG, "Error obtaining custom database ID, falling back to default instance: ${e.message}")
            FirebaseFirestore.getInstance()
        }
    }

    fun handleFirestoreError(exception: Throwable, operation: String, path: String): String {
        val isExpectedState = exception is FirebaseFirestoreException && (
                exception.code == FirebaseFirestoreException.Code.PERMISSION_DENIED ||
                exception.code == FirebaseFirestoreException.Code.UNAVAILABLE
        )
        if (isExpectedState) {
            Log.w(TAG, "Firestore $operation at $path: ${exception.message}")
        } else {
            Log.e(TAG, "Firestore error during $operation at $path: ${exception.message}", exception)
        }
        return when (exception) {
            is FirebaseFirestoreException -> {
                when (exception.code) {
                    FirebaseFirestoreException.Code.PERMISSION_DENIED ->
                        "Erişim izni bekleniyor. Firebase Console kurallarını kontrol ediniz."
                    FirebaseFirestoreException.Code.NOT_FOUND ->
                        "İstenen kayıt bulunamadı."
                    FirebaseFirestoreException.Code.ALREADY_EXISTS ->
                        "Bu kayıt zaten mevcut."
                    FirebaseFirestoreException.Code.UNAVAILABLE ->
                        "Bağlantı kurulamadı. Lütfen internet bağlantınızı kontrol ediniz."
                    else ->
                        "Veritabanı hatası: ${exception.localizedMessage ?: exception.message}"
                }
            }
            else -> exception.localizedMessage ?: "Beklenmeyen bir hata oluştu"
        }
    }
}