// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause

package com.tailscale.ipn.ui.viewModel

import androidx.lifecycle.viewModelScope
import com.tailscale.ipn.mdm.MDMSettings
import com.tailscale.ipn.ui.localapi.Client
import com.tailscale.ipn.ui.notifier.Notifier
import com.tailscale.ipn.ui.util.LoadingIndicator
import com.tailscale.ipn.ui.util.set
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import kotlinx.coroutines.launch

data class SettingsNav(
    val onNavigateToBugReport: () -> Unit,
    val onNavigateToAbout: () -> Unit,
    val onNavigateToDNSSettings: () -> Unit,
    val onNavigateToTailnetLock: () -> Unit,
    val onNavigateToMDMSettings: () -> Unit,
    val onNavigateToManagedBy: () -> Unit,
    val onNavigateToUserSwitcher: () -> Unit,
    val onNavigateToPermissions: () -> Unit,
    val onNavigateBackHome: () -> Unit,
    val onBackToSettings: () -> Unit,
)

class SettingsViewModel : IpnViewModel() {
  // Display name for the logged in user
  val isAdmin: StateFlow<Boolean> = MutableStateFlow(false)
  val managedByOrganization = MDMSettings.managedByOrganizationName.flow
  // True if tailnet lock is enabled.  nil if not yet known.
  val tailNetLockEnabled: StateFlow<Boolean?> = MutableStateFlow(null)
  // True if tailscaleDNS is enabled. nil if not yet known.
  val corpDNSEnabled: StateFlow<Boolean?> = MutableStateFlow(null)

  init {
    viewModelScope.launch {
      Notifier.netmap.collect { netmap -> isAdmin.set(netmap?.SelfNode?.isAdmin ?: false) }
    }

    Client(viewModelScope).tailnetLockStatus { result ->
      result.onSuccess { status -> tailNetLockEnabled.set(status.Enabled) }

      LoadingIndicator.stop()
    }

    viewModelScope.launch {
      Notifier.prefs.collect {
        it?.let {
          corpDNSEnabled.set(it.CorpDNS)
        } ?: run {
          corpDNSEnabled.set(null)
        }
      }
    }
  }
}