amethyst/app/src/fdroid/java/com/vitorpamplona/amethyst/ui/components/SelectNotificationProvider.kt

/**
 * Copyright (c) 2024 Vitor Pamplona
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
 * Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package com.vitorpamplona.amethyst.ui.components

import android.util.Log
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.PaddingValues
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.width
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Check
import androidx.compose.material3.AlertDialog
import androidx.compose.material3.Button
import androidx.compose.material3.Icon
import androidx.compose.material3.Text
import androidx.compose.material3.TextButton
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.unit.dp
import com.google.accompanist.permissions.ExperimentalPermissionsApi
import com.google.accompanist.permissions.isGranted
import com.halilibo.richtext.markdown.Markdown
import com.halilibo.richtext.ui.RichTextStyle
import com.halilibo.richtext.ui.material3.Material3RichText
import com.halilibo.richtext.ui.resolveDefaults
import com.vitorpamplona.amethyst.R
import com.vitorpamplona.amethyst.service.notifications.PushDistributorHandler
import com.vitorpamplona.amethyst.ui.screen.SharedPreferencesViewModel
import com.vitorpamplona.amethyst.ui.screen.loggedIn.CheckifItNeedsToRequestNotificationPermission
import com.vitorpamplona.amethyst.ui.screen.loggedIn.SettingsRow
import com.vitorpamplona.amethyst.ui.screen.loggedIn.SpinnerSelectionDialog
import com.vitorpamplona.amethyst.ui.screen.loggedIn.TitleExplainer
import kotlinx.collections.immutable.ImmutableList
import kotlinx.collections.immutable.toImmutableList

@OptIn(ExperimentalPermissionsApi::class)
@Composable
fun SelectNotificationProvider(sharedPreferencesViewModel: SharedPreferencesViewModel) {
    val notificationPermissionState =
        CheckifItNeedsToRequestNotificationPermission(sharedPreferencesViewModel)

    if (notificationPermissionState.status.isGranted) {
        if (!sharedPreferencesViewModel.sharedPrefs.dontShowPushNotificationSelector) {
            val context = LocalContext.current
            var distributorPresent by remember {
                mutableStateOf(PushDistributorHandler.savedDistributorExists())
            }
            if (!distributorPresent) {
                LoadDistributors { currentDistributor, list, readableListWithExplainer ->
                    if (readableListWithExplainer.size > 1) {
                        SpinnerSelectionDialog(
                            title = stringResource(id = R.string.select_push_server),
                            options = readableListWithExplainer,
                            onSelect = { index ->
                                if (list[index] == "None") {
                                    PushDistributorHandler.forceRemoveDistributor(context)
                                    sharedPreferencesViewModel.dontAskForNotificationPermissions()
                                    sharedPreferencesViewModel.dontShowPushNotificationSelector()
                                } else {
                                    val fullDistributorName = list[index]
                                    PushDistributorHandler.saveDistributor(fullDistributorName)
                                }
                                distributorPresent = true
                                Log.d("Amethyst", "NotificationScreen: Distributor registered.")
                            },
                            onDismiss = {
                                distributorPresent = true
                                Log.d("Amethyst", "NotificationScreen: Distributor dialog dismissed.")
                            },
                        )
                    } else {
                        AlertDialog(
                            onDismissRequest = { distributorPresent = true },
                            title = { Text(stringResource(R.string.push_server_install_app)) },
                            text = {
                                Material3RichText(
                                    style = RichTextStyle().resolveDefaults(),
                                ) {
                                    Markdown(
                                        content = stringResource(R.string.push_server_install_app_description),
                                    )
                                }
                            },
                            confirmButton = {
                                Row(
                                    modifier = Modifier.padding(all = 8.dp).fillMaxWidth(),
                                    horizontalArrangement = Arrangement.SpaceBetween,
                                ) {
                                    TextButton(
                                        onClick = {
                                            distributorPresent = true
                                            sharedPreferencesViewModel.dontShowPushNotificationSelector()
                                        },
                                    ) {
                                        Text(stringResource(R.string.quick_action_dont_show_again_button))
                                    }
                                    Button(
                                        onClick = { distributorPresent = true },
                                        contentPadding = PaddingValues(horizontal = 16.dp),
                                    ) {
                                        Row(
                                            verticalAlignment = Alignment.CenterVertically,
                                        ) {
                                            Icon(
                                                imageVector = Icons.Default.Check,
                                                contentDescription = null,
                                            )
                                            Spacer(Modifier.width(8.dp))
                                            Text(stringResource(R.string.error_dialog_button_ok))
                                        }
                                    }
                                }
                            },
                        )
                    }
                }
            } else {
                val currentDistributor = PushDistributorHandler.getSavedDistributor()
                PushDistributorHandler.saveDistributor(currentDistributor)
            }
        }
    }
}

@Composable
fun LoadDistributors(onInner: @Composable (String, ImmutableList<String>, ImmutableList<TitleExplainer>) -> Unit) {
    val currentDistributor = PushDistributorHandler.getSavedDistributor().ifBlank { null } ?: "None"

    val list =
        remember {
            PushDistributorHandler.getInstalledDistributors().plus("None").toImmutableList()
        }

    val readableListWithExplainer =
        PushDistributorHandler.formattedDistributorNames()
            .mapIndexed { index, name ->
                TitleExplainer(
                    name,
                    stringResource(id = R.string.push_server_uses_app_explainer, list[index]),
                )
            }
            .plus(
                TitleExplainer(
                    stringResource(id = R.string.push_server_none),
                    stringResource(id = R.string.push_server_none_explainer),
                ),
            )
            .toImmutableList()

    onInner(
        currentDistributor,
        list,
        readableListWithExplainer,
    )
}

@Composable
fun PushNotificationSettingsRow(sharedPreferencesViewModel: SharedPreferencesViewModel) {
    val context = LocalContext.current

    LoadDistributors { currentDistributor, list, readableListWithExplainer ->
        SettingsRow(
            R.string.push_server_title,
            R.string.push_server_explainer,
            selectedItens = readableListWithExplainer,
            selectedIndex = list.indexOf(currentDistributor),
        ) { index ->
            if (list[index] == "None") {
                sharedPreferencesViewModel.dontAskForNotificationPermissions()
                sharedPreferencesViewModel.dontShowPushNotificationSelector()
                PushDistributorHandler.forceRemoveDistributor(context)
            } else {
                PushDistributorHandler.saveDistributor(list[index])
            }
        }
    }
}