package com.example.tvcontroller

import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.verticalScroll
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.OutlinedButton
import androidx.compose.material3.OutlinedTextField
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.unit.dp
import androidx.lifecycle.viewmodel.compose.viewModel
import com.example.tvcontroller.services.DeviceService
import com.example.tvcontroller.ui.AppViewModel

@Composable
fun SettingsScreen(deviceService: DeviceService, appViewModel: AppViewModel) {
    val viewModel =
        viewModel<SettingsViewModel>(factory = SettingsViewModel.provideFactory(deviceService))

    Column(
        modifier = Modifier
            .padding(16.dp, 16.dp)
            .verticalScroll(rememberScrollState()),
        verticalArrangement = Arrangement.spacedBy(8.dp)
    ) {
        Text(
            text = stringResource(id = R.string.settings_title),
            style = MaterialTheme.typography.displaySmall
        )
        Spacer(modifier = Modifier.padding(8.dp))
        Text(
            text = stringResource(id = R.string.server_settings_heading),
            style = MaterialTheme.typography.headlineSmall
        )
        Text(
            text = stringResource(id = R.string.server_connection_label) + ": " + stringResource(id = R.string.connection_state_disconnected),
            style = MaterialTheme.typography.bodyMedium
        )
        OutlinedTextField(
            modifier = Modifier.fillMaxWidth(),
            value = viewModel.serverAddress,
            onValueChange = viewModel::onServerAddressChanged,
            label = { Text(stringResource(id = R.string.server_address_label)) }
        )
        OutlinedTextField(
            modifier = Modifier.fillMaxWidth(),
            value = viewModel.deviceName,
            onValueChange = viewModel::onDeviceNameChanged,
            label = { Text(stringResource(id = R.string.device_name_label)) }
        )
        OutlinedTextField(
            modifier = Modifier.fillMaxWidth(),
            value = viewModel.registrationCode,
            onValueChange = viewModel::onRegistrationCodeChanged,
            label = { Text(stringResource(id = R.string.registration_code_label)) }
        )
        OutlinedButton(onClick = { viewModel.connect() }, modifier = Modifier.fillMaxWidth()) {
            Text(
                stringResource(id = R.string.connect_button_label)
            )
        }
        Spacer(modifier = Modifier.padding(8.dp))
        Text(
            text = stringResource(id = R.string.controller_settings_heading),
            style = MaterialTheme.typography.headlineSmall
        )
        if (appViewModel.isBluetoothEnabled()) {
            Text(
                text = "Controller settings: Bluetooth is enabled.",
                style = MaterialTheme.typography.bodyMedium
            )
        } else {
            Text(
                text = "Bluetooth is disabled. Please enable it in settings.",
                style = MaterialTheme.typography.bodyMedium
            )
        }
    }
}