84 lines
2.7 KiB
Kotlin
84 lines
2.7 KiB
Kotlin
package org.thoughtcrime.securesms.groups
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import androidx.lifecycle.LiveData
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import androidx.lifecycle.MutableLiveData
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.liveData
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import dagger.hilt.android.lifecycle.HiltViewModel
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import network.loki.messenger.R
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import org.session.libsession.utilities.recipients.Recipient
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import org.thoughtcrime.securesms.database.Storage
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import org.thoughtcrime.securesms.groups.compose.StateUpdate
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import org.thoughtcrime.securesms.groups.compose.ViewState
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import javax.inject.Inject
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@HiltViewModel
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class CreateGroupViewModel @Inject constructor(
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private val storage: Storage,
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) : ViewModel() {
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private fun create() {
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tryCreateGroup()
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}
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private inline fun <reified T> MutableLiveData<T>.update(body: T.() -> T) {
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this.postValue(body(this.value!!))
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}
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private val _viewState = MutableLiveData(ViewState.DEFAULT.copy())
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val viewState: LiveData<ViewState> = _viewState
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fun updateState(stateUpdate: StateUpdate) {
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when (stateUpdate) {
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is StateUpdate.AddContacts -> _viewState.update { copy(members = members + stateUpdate.value) }
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is StateUpdate.Description -> _viewState.update { copy(description = stateUpdate.value) }
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is StateUpdate.Name -> _viewState.update { copy(name = stateUpdate.value) }
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is StateUpdate.RemoveContact -> _viewState.update { copy(members = members - stateUpdate.value) }
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StateUpdate.Create -> { tryCreateGroup() }
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}
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}
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val contacts
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get() = liveData { emit(storage.getAllContacts()) }
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fun tryCreateGroup(): Recipient? {
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val currentState = _viewState.value!!
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_viewState.postValue(currentState.copy(isLoading = true, error = null))
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val name = currentState.name
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val description = currentState.description
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val members = currentState.members.toMutableSet()
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// do some validation
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// need a name
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if (name.isEmpty()) {
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_viewState.postValue(
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currentState.copy(isLoading = false, error = R.string.error)
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)
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return null
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}
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storage.getAllContacts().forEach { contact ->
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members.add(contact)
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}
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if (members.size <= 1) {
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_viewState.postValue(
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currentState.copy(
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isLoading = false,
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error = R.string.activity_create_closed_group_not_enough_group_members_error
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)
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)
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}
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// make a group
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val newGroup = storage.createNewGroup(name, description, members)
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if (!newGroup.isPresent) {
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_viewState.postValue(currentState.copy(isLoading = false, error = null))
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}
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return newGroup.orNull()
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}
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} |