LibreTube/app/src/main/java/com/github/libretube/dialogs/CustomInstanceDialog.kt

package com.github.libretube.dialogs

import android.app.Dialog
import android.os.Bundle
import android.util.Log
import android.util.TypedValue
import android.view.View
import android.widget.Button
import android.widget.TextView
import android.widget.Toast
import androidx.core.text.HtmlCompat
import androidx.fragment.app.DialogFragment
import androidx.preference.PreferenceManager
import com.github.libretube.R
import com.google.android.material.dialog.MaterialAlertDialogBuilder
import com.google.android.material.textfield.TextInputEditText

class CustomInstanceDialog : DialogFragment() {
    val TAG = "CustomInstanceDialog"

    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
        return activity?.let {
            val builder = MaterialAlertDialogBuilder(it)
            val inflater = requireActivity().layoutInflater
            val view: View = inflater.inflate(R.layout.dialog_custom_instance, null)

            val instanceNameEditText = view.findViewById<TextInputEditText>(R.id.instanceName)
            val instanceApiUrlEditText = view.findViewById<TextInputEditText>(R.id.instanceApiUrl)
            val addInstanceButton = view.findViewById<Button>(R.id.addInstance)
            val cancelButton = view.findViewById<Button>(R.id.cancel)
            cancelButton.setOnClickListener {
                dismiss()
            }

            addInstanceButton.setOnClickListener {
                val instanceName = instanceNameEditText.text.toString()
                val instanceApiUrl = instanceApiUrlEditText.text.toString()
                if (instanceName != "" && instanceApiUrl != "") {
                    val sharedPreferences = PreferenceManager
                        .getDefaultSharedPreferences(requireContext())

                    // get the names of the other custom instances
                    var customInstancesNames = try {
                        sharedPreferences
                            .getStringSet("custom_instances_name", HashSet())!!.toList()
                    } catch (e: Exception) {
                        emptyList()
                    }

                    // get the urls of the other custom instances
                    var customInstancesUrls = try {
                        sharedPreferences
                            .getStringSet("custom_instances_url", HashSet())!!.toList()
                    } catch (e: Exception) {
                        emptyList()
                    }

                    // append new instance to the list
                    customInstancesNames += instanceName
                    customInstancesUrls += instanceApiUrl
                    Log.e(TAG, customInstancesNames.toString())

                    // save them to the shared preferences
                    sharedPreferences.edit()
                        .putStringSet("custom_instances_name", HashSet(customInstancesNames))
                        .putStringSet("custom_instances_url", HashSet(customInstancesUrls))
                        .apply()
                    activity?.recreate()
                    dismiss()
                } else {
                    Toast.makeText(
                        context, context?.getString(R.string.empty_instance), Toast.LENGTH_SHORT
                    ).show()
                }
            }

            val typedValue = TypedValue()
            this.requireActivity().theme.resolveAttribute(R.attr.colorPrimaryDark, typedValue, true)
            val hexColor = String.format("#%06X", (0xFFFFFF and typedValue.data))
            val appName = HtmlCompat.fromHtml(
                "Libre<span  style='color:$hexColor';>Tube</span>",
                HtmlCompat.FROM_HTML_MODE_COMPACT
            )
            view.findViewById<TextView>(R.id.title).text = appName

            builder.setView(view)
            builder.create()
        } ?: throw IllegalStateException("Activity cannot be null")
    }
}