diff options
Diffstat (limited to 'app/src/main/java/com/pwc')
17 files changed, 1231 insertions, 0 deletions
diff --git a/app/src/main/java/com/pwc/calculatorv2/DB.kt b/app/src/main/java/com/pwc/calculatorv2/DB.kt new file mode 100644 index 0000000..ca4af18 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/DB.kt @@ -0,0 +1,13 @@ +package com.pwc.calculatorv2
+
+import androidx.room.Database
+import androidx.room.RoomDatabase
+import com.pwc.calculatorv2.data.dao.FunctionDao
+import com.pwc.calculatorv2.data.models.Function
+
+//??
+
+@Database(entities = [Function::class], version = 1, exportSchema = false)
+abstract class AppDatabase : RoomDatabase() {
+ abstract fun functionDao(): FunctionDao
+}
diff --git a/app/src/main/java/com/pwc/calculatorv2/data/dao/FunctionDao.kt b/app/src/main/java/com/pwc/calculatorv2/data/dao/FunctionDao.kt new file mode 100644 index 0000000..341f961 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/data/dao/FunctionDao.kt @@ -0,0 +1,51 @@ +package com.pwc.calculatorv2.data.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import com.pwc.calculatorv2.data.models.Function
+
+@Dao
+interface FunctionDao {
+ @Query("SELECT * FROM Function")
+ fun getAll(): List<Function>
+
+ @Query("SELECT * FROM Function WHERE function LIKE '%+%'")
+ fun getPlus(): List<Function>
+
+ @Query("SELECT * FROM Function WHERE function LIKE '%-%'")
+ fun getMinus(): List<Function>
+
+ @Query("SELECT * FROM Function WHERE function LIKE '%*%'")
+ fun getPer(): List<Function>
+
+ @Query("SELECT * FROM Function WHERE function LIKE '%/%'")
+ fun getDivide(): List<Function>
+
+ @Insert
+ fun insertAll(functionList: List<Function>)
+
+ @Insert
+ fun insert(function: Function)
+
+ @Delete
+ fun delete(function: Function)
+
+ @Query("DELETE FROM Function")
+ fun wipe()
+
+ @Query("DELETE FROM Function WHERE function LIKE '%+%'")
+ fun wipePlus()
+
+ @Query("DELETE FROM Function WHERE function LIKE '%-%'")
+ fun wipeMinus()
+
+ @Query("DELETE FROM Function WHERE function LIKE '%*%'")
+ fun wipePer()
+
+ @Query("DELETE FROM Function WHERE function LIKE '%/%'")
+ fun wipeDivided()
+
+
+}
\ No newline at end of file diff --git a/app/src/main/java/com/pwc/calculatorv2/data/datasources/FunctionListDataSource.kt b/app/src/main/java/com/pwc/calculatorv2/data/datasources/FunctionListDataSource.kt new file mode 100644 index 0000000..aaee7b3 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/data/datasources/FunctionListDataSource.kt @@ -0,0 +1,70 @@ +package com.pwc.calculatorv2.data.datasources
+
+import android.content.Context
+import androidx.room.Room
+import com.pwc.calculatorv2.AppDatabase
+import com.pwc.calculatorv2.data.models.Function
+
+class FunctionListDataSource (context: Context){
+ private val db: AppDatabase = Room.databaseBuilder(
+ context.applicationContext,
+ AppDatabase::class.java,
+ "calculator"
+ ).build()
+
+ fun getFunctionList(): List<Function> {
+ return db.functionDao().getAll()
+ }
+
+ fun getPlusFunctionList(): List<Function> {
+ return db.functionDao().getPlus()
+ }
+
+ fun getMinusFunctionList(): List<Function> {
+ return db.functionDao().getMinus()
+ }
+
+ fun getPerFunctionList(): List<Function> {
+ return db.functionDao().getPer()
+ }
+
+ fun getDividedFunctionList(): List<Function> {
+ return db.functionDao().getDivide()
+ }
+
+ fun addFunction(function: Function): List<Function> {
+ db.functionDao().insert(function)
+ return db.functionDao().getAll()
+ }
+
+ fun removeFunction(function: Function): List<Function> {
+ db.functionDao().delete(function)
+ return db.functionDao().getAll()
+ }
+
+ fun wipeFunctionList(): List<Function> {
+ db.functionDao().wipe()
+ return db.functionDao().getAll()
+ }
+
+ fun wipePlusFunctionList(): List<Function> {
+ db.functionDao().wipePlus()
+ return db.functionDao().getAll()
+ }
+
+ fun wipeMinusFunctionList(): List<Function> {
+ db.functionDao().wipeMinus()
+ return db.functionDao().getAll()
+ }
+
+ fun wipePerFunctionList(): List<Function> {
+ db.functionDao().wipePer()
+ return db.functionDao().getAll()
+ }
+
+ fun wipeDividedFunctionList(): List<Function> {
+ db.functionDao().wipeDivided()
+ return db.functionDao().getAll()
+ }
+
+}
diff --git a/app/src/main/java/com/pwc/calculatorv2/data/models/FunctionDTO.kt b/app/src/main/java/com/pwc/calculatorv2/data/models/FunctionDTO.kt new file mode 100644 index 0000000..b8b73a2 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/data/models/FunctionDTO.kt @@ -0,0 +1,28 @@ +package com.pwc.calculatorv2.data.models
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import androidx.room.TypeConverter
+import androidx.room.TypeConverters
+import java.util.Date
+
+@Entity
+@TypeConverters(DateConverter::class)
+data class Function(
+ @PrimaryKey (autoGenerate = true) var id: Int = 0,
+ @ColumnInfo var function: String = "",
+ @ColumnInfo var date: Date = Date()
+)
+
+class DateConverter {
+ @TypeConverter
+ fun fromDate(date: Date?): Long? {
+ return date?.time
+ }
+
+ @TypeConverter
+ fun toDate(timestamp: Long?): Date? {
+ return timestamp?.let { Date(it) }
+ }
+}
\ No newline at end of file diff --git a/app/src/main/java/com/pwc/calculatorv2/data/repositories/FunctionListRepository.kt b/app/src/main/java/com/pwc/calculatorv2/data/repositories/FunctionListRepository.kt new file mode 100644 index 0000000..d3b0682 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/data/repositories/FunctionListRepository.kt @@ -0,0 +1,121 @@ +package com.pwc.calculatorv2.data.repositories
+
+import android.content.Context
+import com.pwc.calculatorv2.data.datasources.FunctionListDataSource
+import com.pwc.calculatorv2.data.responses.FunctionListResponse
+import kotlinx.coroutines.flow.flow
+import com.pwc.calculatorv2.data.models.Function
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.flowOn
+
+class FunctionListRepository (context: Context) {
+ private val dataSource = FunctionListDataSource(context)
+
+ fun getFunctionList() = flow {
+ try {
+ val functionList = dataSource.getFunctionList()
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn(Dispatchers.IO)
+
+ fun getPlusFunctionList() = flow {
+ try {
+ val functionList = dataSource.getPlusFunctionList()
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn(Dispatchers.IO)
+
+ fun getMinusFunctionList() = flow {
+ try {
+ val functionList = dataSource.getMinusFunctionList()
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn(Dispatchers.IO)
+
+ fun getPerFunctionList() = flow {
+ try {
+ val functionList = dataSource.getPerFunctionList()
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn(Dispatchers.IO)
+
+ fun getDividedFunctionList() = flow {
+ try {
+ val functionList = dataSource.getDividedFunctionList()
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn(Dispatchers.IO)
+
+ fun addFunction(function: Function) = flow {
+ try {
+ val functionList = dataSource.addFunction(function)
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn((Dispatchers.IO))
+
+ fun removeFunction(function: Function) = flow {
+ try {
+ val functionList = dataSource.removeFunction(function)
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn((Dispatchers.IO))
+
+ fun wipeFunctionList() = flow {
+ try {
+ val functionList = dataSource.wipeFunctionList()
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn((Dispatchers.IO))
+
+ fun wipePlusFunctionList() = flow {
+ try {
+ val functionList = dataSource.wipePlusFunctionList()
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn((Dispatchers.IO))
+
+ fun wipeMinusFunctionList() = flow {
+ try {
+ val functionList = dataSource.wipeMinusFunctionList()
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn((Dispatchers.IO))
+
+ fun wipePerFunctionList() = flow {
+ try {
+ val functionList = dataSource.wipePerFunctionList()
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn((Dispatchers.IO))
+
+ fun wipeDividedFunctionList() = flow {
+ try {
+ val functionList = dataSource.wipeDividedFunctionList()
+ emit(FunctionListResponse.Success( functionList ))
+ } catch (e: Exception) {
+ emit(FunctionListResponse.Error(e.message ?: "Error"))
+ }
+ }.flowOn((Dispatchers.IO))
+}
\ No newline at end of file diff --git a/app/src/main/java/com/pwc/calculatorv2/data/responses/FunctionListResponse.kt b/app/src/main/java/com/pwc/calculatorv2/data/responses/FunctionListResponse.kt new file mode 100644 index 0000000..b2a75ca --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/data/responses/FunctionListResponse.kt @@ -0,0 +1,8 @@ +package com.pwc.calculatorv2.data.responses
+
+import com.pwc.calculatorv2.data.models.Function
+
+sealed class FunctionListResponse {
+ data class Success(val functionList: List<Function>) : FunctionListResponse()
+ data class Error(val error: String): FunctionListResponse()
+}
diff --git a/app/src/main/java/com/pwc/calculatorv2/data/viewmodels/CalculatorViewModel.kt b/app/src/main/java/com/pwc/calculatorv2/data/viewmodels/CalculatorViewModel.kt new file mode 100644 index 0000000..bbb270a --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/data/viewmodels/CalculatorViewModel.kt @@ -0,0 +1,316 @@ +package com.pwc.calculatorv2.data.viewmodels
+
+import android.content.Context
+import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.mutableStateOf
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.pwc.calculatorv2.data.repositories.FunctionListRepository
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import com.pwc.calculatorv2.data.models.Function
+import com.pwc.calculatorv2.data.responses.FunctionListResponse
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+
+class CalculatorViewModel(context: Context, private val repository: FunctionListRepository = FunctionListRepository(context)) : ViewModel() {
+ private val mutableState = MutableStateFlow(CalculatorViewState())
+ val calculatorViewState: StateFlow<CalculatorViewState> = mutableState
+ val index = mutableStateOf(-1)
+
+
+ fun getFunctionList() {
+ mutableState.value = mutableState.value.copy(isLoading = true)
+ repository.getFunctionList()
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ index.value = mutableState.value.functionList?.lastIndex ?: -1
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun getPlusFunctionList() {
+ mutableState.value = mutableState.value.copy(isLoading = true)
+ repository.getPlusFunctionList()
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun getMinusFunctionList() {
+ mutableState.value = mutableState.value.copy(isLoading = true)
+ repository.getMinusFunctionList()
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun getPerFunctionList() {
+ mutableState.value = mutableState.value.copy(isLoading = true)
+ repository.getPerFunctionList()
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun getDivideFunctionList() {
+ mutableState.value = mutableState.value.copy(isLoading = true)
+ repository.getDividedFunctionList()
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ }
+ .launchIn(viewModelScope)
+ }
+
+ private fun addFunction(function: Function) {
+ repository.addFunction(function)
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ index.value = mutableState.value.functionList?.lastIndex ?: -1
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun removeFunction(function: Function) {
+ repository.removeFunction(function)
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun wipeFunctionList() {
+ repository.wipeFunctionList()
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun wipePlusFunctionList() {
+ repository.wipePlusFunctionList()
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun wipeMinusFunctionList() {
+ repository.wipeMinusFunctionList()
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun wipePerFunctionList() {
+ repository.wipePerFunctionList()
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun wipeDividedFunctionList() {
+ repository.wipeDividedFunctionList()
+ .onEach { response ->
+ when (response) {
+ is FunctionListResponse.Success ->
+ mutableState.value =
+ mutableState.value.copy(functionList = response.functionList)
+ is FunctionListResponse.Error ->
+ mutableState.value =
+ mutableState.value.copy(error = response.error)
+ }
+ }
+ .launchIn(viewModelScope)
+ }
+
+ fun showLast(
+ ):String {
+ var string = ""
+ val functionList = mutableState.value.functionList
+ if (!functionList.isNullOrEmpty()){
+ if (index.value < 0 || index.value > functionList.lastIndex){
+ index.value = functionList.lastIndex
+ }
+ string = functionList[index.value].function
+ index.value = index.value - 1
+ return string
+ }
+ return string
+ }
+
+ fun calculateResult(
+ expression: MutableState<String>,
+ ) {
+ // Calculate the result of the expression
+ val expressionValue = expression.value
+ val result = try {
+ if(expressionValue != "" || expressionValue.contains(" ")){
+ val numericResult = evaluateExpression(expressionValue)
+ numericResult.toString()
+ } else if(!expressionValue.contains(" ")){
+ expressionValue
+ }
+ else
+ {
+ ""
+ }
+ } catch (e: Exception) {
+ "ErrorHello"
+ }
+
+ addFunction(Function(function = expressionValue))
+ expression.value = result
+ }
+
+ private fun evaluateExpression(expression: String): Double {
+ var modifiedExpression = expression
+
+ while (modifiedExpression.contains("(")) {
+ val openingIndex = modifiedExpression.lastIndexOf("(")
+ val closingIndex = modifiedExpression.indexOf(")", openingIndex)
+ val innerExpression = modifiedExpression.substring(openingIndex + 1, closingIndex)
+ val innerResult = evaluateExpression(innerExpression)
+
+ // Replace the inner expression (within parentheses) with its result
+ modifiedExpression =
+ modifiedExpression.replace("($innerExpression)", innerResult.toString())
+// modifiedExpression = modifiedExpression.replaceRange(
+// openingIndex -1,
+// closingIndex,
+// innerResult.toString()
+// )
+
+ }
+
+ val parts = modifiedExpression.split(" ").toMutableList()
+ var operator: String = ""
+ var result: Double = 0.0
+
+
+ while (parts.contains("*")) {
+ multiply(parts)
+ }
+ while (parts.contains("/")) {
+ divide(parts)
+ }
+
+ parts.forEachIndexed { _ , unit ->
+ if (unit.toDoubleOrNull() != null) {
+ val operand = unit.toDouble()
+ when (operator) {
+ "" -> result = operand
+ "+" -> result += operand
+ "-" -> result -= operand
+ }
+ } else {
+ operator = unit.trim()
+ }
+ }
+
+ return result
+ }
+
+
+ private fun divide(parts: MutableList<String>) {
+ val indexOfSymbol = parts.indexOf("/")
+ parts[indexOfSymbol] = (parts[indexOfSymbol - 1].toDouble() / parts[indexOfSymbol + 1].toDouble()).toString()
+ parts.removeAt(indexOfSymbol - 1)
+ parts.removeAt(indexOfSymbol)
+ }
+
+ private fun multiply(parts: MutableList<String>) {
+ val indexOfSymbol = parts.indexOf("*")
+ parts[indexOfSymbol] = (parts[indexOfSymbol - 1].toDouble() * parts[indexOfSymbol + 1].toDouble()).toString()
+ parts.removeAt(indexOfSymbol - 1)
+ parts.removeAt(indexOfSymbol)
+ }
+
+}
+data class CalculatorViewState(
+ val functionList: List<Function>? = null,
+ val error: String? = null,
+ val isLoading: Boolean = false
+)
diff --git a/app/src/main/java/com/pwc/calculatorv2/presentation/activities/MainActivity.kt b/app/src/main/java/com/pwc/calculatorv2/presentation/activities/MainActivity.kt new file mode 100644 index 0000000..59a91f0 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/presentation/activities/MainActivity.kt @@ -0,0 +1,31 @@ +package com.pwc.calculatorv2.presentation.activities + +import android.os.Bundle +import androidx.activity.ComponentActivity +import androidx.activity.compose.setContent +import androidx.compose.foundation.layout.fillMaxSize +import androidx.compose.material3.MaterialTheme +import androidx.compose.material3.Surface +import androidx.compose.material3.Text +import androidx.compose.runtime.Composable +import androidx.compose.ui.Modifier +import androidx.compose.ui.tooling.preview.Preview +import com.pwc.calculatorv2.presentation.screens.BottomNavScreen +import com.pwc.calculatorv2.presentation.ui.theme.CalculatorV2Theme + +class MainActivity : ComponentActivity() { + override fun onCreate(savedInstanceState: Bundle?) { + super.onCreate(savedInstanceState) + setContent { + CalculatorV2Theme { + // A surface container using the 'background' color from the theme + Surface( + modifier = Modifier.fillMaxSize(), + color = MaterialTheme.colorScheme.background + ) { + BottomNavScreen() + } + } + } + } +} diff --git a/app/src/main/java/com/pwc/calculatorv2/presentation/navigation/AppScreens.kt b/app/src/main/java/com/pwc/calculatorv2/presentation/navigation/AppScreens.kt new file mode 100644 index 0000000..0418d2b --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/presentation/navigation/AppScreens.kt @@ -0,0 +1,7 @@ +package com.pwc.calculatorv2.presentation.navigation
+
+sealed class AppScreens(val route: String) {
+ object CalculatorScreen: AppScreens("calculator_screen")
+ object FunctionListScreen: AppScreens("function_list_screen")
+ object WipeScreen: AppScreens("wipe_screen")
+}
diff --git a/app/src/main/java/com/pwc/calculatorv2/presentation/screens/BottomNavScreen.kt b/app/src/main/java/com/pwc/calculatorv2/presentation/screens/BottomNavScreen.kt new file mode 100644 index 0000000..1f05318 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/presentation/screens/BottomNavScreen.kt @@ -0,0 +1,60 @@ +package com.pwc.calculatorv2.presentation.screens
+
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.rememberNavController
+import com.pwc.calculatorv2.data.viewmodels.CalculatorViewModel
+import com.pwc.calculatorv2.presentation.navigation.AppScreens
+import com.pwc.calculatorv2.presentation.ui.widgets.BottomNav
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.platform.LocalContext
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun BottomNavScreen() {
+ val context = LocalContext.current
+ val bottomNavController = rememberNavController()
+ val viewModel by remember { mutableStateOf(CalculatorViewModel(context)) }
+ LaunchedEffect(Unit) {
+ viewModel.getFunctionList()
+ }
+
+ Scaffold(
+ bottomBar = {
+ BottomNav(bottomNavController)
+ },
+ ) {
+ Surface(
+ modifier = Modifier
+ .fillMaxSize()
+ .padding(bottom = it.calculateBottomPadding()),
+ color = MaterialTheme.colorScheme.background
+ ) {
+ NavHost(
+ navController = bottomNavController,
+ startDestination = AppScreens.CalculatorScreen.route
+ ) {
+ composable(AppScreens.CalculatorScreen.route) {
+ CalculatorScreen(viewModel)
+ }
+ composable(AppScreens.FunctionListScreen.route) {
+ FunctionListScreen(viewModel)
+ }
+ composable(AppScreens.WipeScreen.route) {
+ WipeScreen(viewModel)
+ }
+ }
+ }
+ }
+}
diff --git a/app/src/main/java/com/pwc/calculatorv2/presentation/screens/CalculatorScreen.kt b/app/src/main/java/com/pwc/calculatorv2/presentation/screens/CalculatorScreen.kt new file mode 100644 index 0000000..5cef814 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/presentation/screens/CalculatorScreen.kt @@ -0,0 +1,276 @@ +package com.pwc.calculatorv2.presentation.screens
+
+import android.annotation.SuppressLint
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.material3.Button
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextField
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.pwc.calculatorv2.data.viewmodels.CalculatorViewModel
+import com.pwc.calculatorv2.data.viewmodels.CalculatorViewState
+
+@SuppressLint("StateFlowValueCalledInComposition")
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun CalculatorScreen(
+ viewModel: CalculatorViewModel,
+) {
+
+ val expression = remember { mutableStateOf("") }
+
+ Box(
+ modifier = Modifier
+ .fillMaxSize(),
+ contentAlignment = Alignment.Center)
+ {
+ Column(
+ modifier = Modifier.width(width = 300.dp),
+ verticalArrangement = Arrangement.Center,
+ horizontalAlignment = Alignment.CenterHorizontally
+ ) {
+ TextField(
+ value = expression.value,
+ onValueChange = { expression.value = it },
+ modifier = Modifier.width(300.dp),
+ textStyle = TextStyle(fontSize = 24.sp, textAlign = TextAlign.End)
+ )
+
+ Column(
+ modifier = Modifier
+ .padding(16.dp)
+ .width(300.dp)
+ ) {
+ Row(
+ modifier = Modifier
+ .fillMaxWidth()
+ .padding(horizontal = 0.dp),
+ horizontalArrangement = Arrangement.SpaceEvenly
+ ) {
+ Button(
+ onClick = { viewModel.calculatorViewState.value?.let { expression.value = viewModel.showLast() } },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "^", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, " ( ") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "(", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, " ) ") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = ")", color = Color.Black)
+ }
+ Button(
+ onClick = { erase(expression) },
+ modifier = Modifier.width(57.dp)
+ ) {
+ Text(text = "<", color = Color.Black)
+ }
+ }
+ Row(
+ modifier = Modifier.fillMaxWidth(),
+ horizontalArrangement = Arrangement.SpaceEvenly
+ ) {
+ Button(
+ onClick = { appendToExpression(expression, "7") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "7", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, "8") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "8", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, "9") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "9", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, " + ") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "+", color = Color.Black)
+ }
+ }
+ Row(
+ modifier = Modifier.fillMaxWidth(),
+ horizontalArrangement = Arrangement.SpaceEvenly
+ ) {
+ Button(
+ onClick = { appendToExpression(expression, "4") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "4", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, "5") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "5", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, "6") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "6", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, " - ") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "-", color = Color.Black)
+ }
+ }
+ Row(
+ modifier = Modifier.fillMaxWidth(),
+ horizontalArrangement = Arrangement.SpaceEvenly
+ ) {
+ Button(
+ onClick = { appendToExpression(expression, "1") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "1", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, "2") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "2", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, "3") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "3", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, " * ") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "*", color = Color.Black)
+ }
+ }
+
+ Row(
+ modifier = Modifier.fillMaxWidth(),
+ horizontalArrangement = Arrangement.SpaceEvenly
+ ) {
+ Button(
+ onClick = { appendDotToExpression(expression) },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = ".", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, "0") },
+ modifier = Modifier.width(75.dp)
+ ) {
+ Text(text = "0", color = Color.Black)
+ }
+ Button(
+ onClick = { viewModel.calculateResult(expression) },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "=", color = Color.Black)
+ }
+ Button(
+ onClick = { appendToExpression(expression, " / ") },
+ modifier = Modifier.width(70.dp)
+ ) {
+ Text(text = "/", color = Color.Black)
+ }
+ }
+ // Add more rows of buttons for other numbers and operators
+
+ Row(modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.Center) {
+ Button(
+ onClick = { clearExpression(expression) },
+ modifier = Modifier.width(145.dp)
+ ) {
+ Text(text = "Clear", color = Color.Black)
+ }
+ }
+ }
+ }
+}
+}
+
+fun erase(expression: MutableState<String>) {
+ // erase last char from given expression
+ if (expression.value.isNotEmpty()){
+ if(expression.value.last() == " ".last()){
+ expression.value = expression.value.dropLast(3)
+ } else {
+ expression.value = expression.value.dropLast(1)
+ }
+ }
+}
+
+fun appendToExpression(expression: MutableState<String>, text: String) {
+ // Append the given text to the expression
+ if (text == " ) " || text == " ( ") {
+ if(expression.value.isNotEmpty()){
+ if (expression.value.last() == ' ') {
+ expression.value = expression.value.substring(0, expression.value.length - 1) + text
+ } else {
+ expression.value += text
+ }
+ }else{
+ expression.value += text
+ }
+ } else if (expression.value.isNotEmpty() && expression.value.last() == ' ' && text.toDoubleOrNull() == null) {
+ if (expression.value.substring(expression.value.length - 2) == ") " || expression.value.substring(expression.value.length - 2) == "( ") {
+ expression.value = expression.value.substring(0, expression.value.length - 1) + text
+ } else {
+ expression.value = expression.value.substring(0, expression.value.length - 3) + text
+ }
+ } else {
+ expression.value += text
+ if (expression.value.isNotEmpty() && expression.value.first() == ' ') {
+ expression.value = ""
+ }
+ }
+}
+
+
+fun appendDotToExpression(expression: MutableState<String>) {
+ // Append the given text to the expression
+ val lastWord = expression.value.trim().split(" ").last()
+ if(lastWord.toDoubleOrNull() != null || lastWord.isEmpty()){
+ if(!lastWord.contains(".")){
+ expression.value += "."
+ }
+ }
+}
+
+
+fun clearExpression(expression: MutableState<String>) {
+ // Clear the expression
+ expression.value = ""
+}
diff --git a/app/src/main/java/com/pwc/calculatorv2/presentation/screens/FunctionListScreen.kt b/app/src/main/java/com/pwc/calculatorv2/presentation/screens/FunctionListScreen.kt new file mode 100644 index 0000000..01f9ea8 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/presentation/screens/FunctionListScreen.kt @@ -0,0 +1,72 @@ +package com.pwc.calculatorv2.presentation.screens
+
+import android.content.Context
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.material3.Button
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.pwc.calculatorv2.data.viewmodels.CalculatorViewModel
+import java.text.SimpleDateFormat
+
+@Composable
+fun FunctionListScreen(
+ viewModel: CalculatorViewModel,
+) {
+
+ val calculatorViewState = viewModel.calculatorViewState.collectAsState()
+ val dateFormat = SimpleDateFormat("dd-MM-yyyy HH:mm")
+
+
+ Column() {
+ Row() {
+ Button(onClick = { viewModel.getFunctionList() }) {
+ Text(text = "ALL")
+ }
+ Button(onClick = { viewModel.getPlusFunctionList() }) {
+ Text(text = "+")
+ }
+ Button(onClick = { viewModel.getMinusFunctionList() }) {
+ Text(text = "-")
+ }
+ Button(onClick = { viewModel.getPerFunctionList() }) {
+ Text(text = "*")
+ }
+ Button(onClick = { viewModel.getDivideFunctionList() }) {
+ Text(text = "/")
+ }
+ }
+ LazyColumn(
+ modifier = Modifier
+ .fillMaxSize(),
+ verticalArrangement = Arrangement.spacedBy(8.dp)
+ ) {
+ calculatorViewState.value.functionList?.forEach() { response ->
+ item {
+ Row(
+ horizontalArrangement = Arrangement.SpaceBetween,
+ verticalAlignment = Alignment.CenterVertically,
+ modifier = Modifier
+ .fillMaxWidth()
+ ) {
+ Text(text = response.function)
+ Text(text = dateFormat.format(response.date))
+ Button(onClick = {viewModel.removeFunction(response) }) {
+ Text(text = "X")
+ }
+ }
+ }
+ }
+ }
+
+ }
+
+}
\ No newline at end of file diff --git a/app/src/main/java/com/pwc/calculatorv2/presentation/screens/WipeScreen.kt b/app/src/main/java/com/pwc/calculatorv2/presentation/screens/WipeScreen.kt new file mode 100644 index 0000000..45810ad --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/presentation/screens/WipeScreen.kt @@ -0,0 +1,31 @@ +package com.pwc.calculatorv2.presentation.screens
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.material3.Button
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import com.pwc.calculatorv2.data.viewmodels.CalculatorViewModel
+
+@Composable
+fun WipeScreen(viewModel: CalculatorViewModel) {
+
+ Column() {
+ Button(onClick = { viewModel.wipeFunctionList()}) {
+ Text(text = "Wipe")
+ }
+ Button(onClick = { viewModel.wipePlusFunctionList()}) {
+ Text(text = "Wipe +")
+ }
+ Button(onClick = { viewModel.wipeMinusFunctionList()}) {
+ Text(text = "Wipe -")
+ }
+ Button(onClick = { viewModel.wipePerFunctionList()}) {
+ Text(text = "Wipe *")
+ }
+ Button(onClick = { viewModel.wipeDividedFunctionList()}) {
+ Text(text = "Wipe /")
+ }
+ }
+
+
+}
diff --git a/app/src/main/java/com/pwc/calculatorv2/presentation/ui/theme/Color.kt b/app/src/main/java/com/pwc/calculatorv2/presentation/ui/theme/Color.kt new file mode 100644 index 0000000..47ec008 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/presentation/ui/theme/Color.kt @@ -0,0 +1,11 @@ +package com.pwc.calculatorv2.presentation.ui.theme + +import androidx.compose.ui.graphics.Color + +val Purple80 = Color(0xFFD0BCFF) +val PurpleGrey80 = Color(0xFFCCC2DC) +val Pink80 = Color(0xFFEFB8C8) + +val Purple40 = Color(0xFF6650a4) +val PurpleGrey40 = Color(0xFF625b71) +val Pink40 = Color(0xFF7D5260)
\ No newline at end of file diff --git a/app/src/main/java/com/pwc/calculatorv2/presentation/ui/theme/Theme.kt b/app/src/main/java/com/pwc/calculatorv2/presentation/ui/theme/Theme.kt new file mode 100644 index 0000000..5568c46 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/presentation/ui/theme/Theme.kt @@ -0,0 +1,70 @@ +package com.pwc.calculatorv2.presentation.ui.theme + +import android.app.Activity +import android.os.Build +import androidx.compose.foundation.isSystemInDarkTheme +import androidx.compose.material3.MaterialTheme +import androidx.compose.material3.darkColorScheme +import androidx.compose.material3.dynamicDarkColorScheme +import androidx.compose.material3.dynamicLightColorScheme +import androidx.compose.material3.lightColorScheme +import androidx.compose.runtime.Composable +import androidx.compose.runtime.SideEffect +import androidx.compose.ui.graphics.toArgb +import androidx.compose.ui.platform.LocalContext +import androidx.compose.ui.platform.LocalView +import androidx.core.view.WindowCompat + +private val DarkColorScheme = darkColorScheme( + primary = Purple80, + secondary = PurpleGrey80, + tertiary = Pink80 +) + +private val LightColorScheme = lightColorScheme( + primary = Purple40, + secondary = PurpleGrey40, + tertiary = Pink40 + + /* Other default colors to override + background = Color(0xFFFFFBFE), + surface = Color(0xFFFFFBFE), + onPrimary = Color.White, + onSecondary = Color.White, + onTertiary = Color.White, + onBackground = Color(0xFF1C1B1F), + onSurface = Color(0xFF1C1B1F), + */ +) + +@Composable +fun CalculatorV2Theme( + darkTheme: Boolean = isSystemInDarkTheme(), + // Dynamic color is available on Android 12+ + dynamicColor: Boolean = true, + content: @Composable () -> Unit +) { + val colorScheme = when { + dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> { + val context = LocalContext.current + if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context) + } + + darkTheme -> DarkColorScheme + else -> LightColorScheme + } + val view = LocalView.current + if (!view.isInEditMode) { + SideEffect { + val window = (view.context as Activity).window + window.statusBarColor = colorScheme.primary.toArgb() + WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = darkTheme + } + } + + MaterialTheme( + colorScheme = colorScheme, + typography = Typography, + content = content + ) +}
\ No newline at end of file diff --git a/app/src/main/java/com/pwc/calculatorv2/presentation/ui/theme/Type.kt b/app/src/main/java/com/pwc/calculatorv2/presentation/ui/theme/Type.kt new file mode 100644 index 0000000..424eda5 --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/presentation/ui/theme/Type.kt @@ -0,0 +1,34 @@ +package com.pwc.calculatorv2.presentation.ui.theme + +import androidx.compose.material3.Typography +import androidx.compose.ui.text.TextStyle +import androidx.compose.ui.text.font.FontFamily +import androidx.compose.ui.text.font.FontWeight +import androidx.compose.ui.unit.sp + +// Set of Material typography styles to start with +val Typography = Typography( + bodyLarge = TextStyle( + fontFamily = FontFamily.Default, + fontWeight = FontWeight.Normal, + fontSize = 16.sp, + lineHeight = 24.sp, + letterSpacing = 0.5.sp + ) + /* Other default text styles to override + titleLarge = TextStyle( + fontFamily = FontFamily.Default, + fontWeight = FontWeight.Normal, + fontSize = 22.sp, + lineHeight = 28.sp, + letterSpacing = 0.sp + ), + labelSmall = TextStyle( + fontFamily = FontFamily.Default, + fontWeight = FontWeight.Medium, + fontSize = 11.sp, + lineHeight = 16.sp, + letterSpacing = 0.5.sp + ) + */ +)
\ No newline at end of file diff --git a/app/src/main/java/com/pwc/calculatorv2/presentation/ui/widgets/BottomNav.kt b/app/src/main/java/com/pwc/calculatorv2/presentation/ui/widgets/BottomNav.kt new file mode 100644 index 0000000..1ba2d4c --- /dev/null +++ b/app/src/main/java/com/pwc/calculatorv2/presentation/ui/widgets/BottomNav.kt @@ -0,0 +1,32 @@ +package com.pwc.calculatorv2.presentation.ui.widgets
+
+import androidx.compose.runtime.Composable
+import androidx.compose.material.BottomNavigation
+import androidx.compose.material.Button
+import androidx.compose.material.Text
+import androidx.compose.material.TopAppBar
+import androidx.navigation.NavController
+import com.pwc.calculatorv2.presentation.navigation.AppScreens
+
+@Composable
+fun BottomNav(navController: NavController) {
+ BottomNavigation(
+
+ ) {
+ Button(onClick = {
+ navController.navigate(AppScreens.CalculatorScreen.route)
+ }) {
+ Text(text = "Calculator")
+ }
+ Button(onClick = {
+ navController.navigate(AppScreens.FunctionListScreen.route)
+ }) {
+ Text(text = "History")
+ }
+ Button(onClick = {
+ navController.navigate(AppScreens.WipeScreen.route)
+ }) {
+ Text(text = "Wipe")
+ }
+ }
+}
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