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| /* | |
| * Copyright 2025 Kyriakos Georgiopoulos | |
| * | |
| * Licensed under the Apache License, Version 2.0 (the "License"); | |
| * you may not use this file except in compliance with the License. | |
| * You may obtain a copy of the License at | |
| * | |
| * http://www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, software | |
| * distributed under the License is distributed on an "AS IS" BASIS, | |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| * See the License for the specific language governing permissions and | |
| * limitations under the License. | |
| */ | |
| import androidx.compose.foundation.background | |
| import androidx.compose.foundation.layout.Arrangement | |
| import androidx.compose.foundation.layout.Box | |
| import androidx.compose.foundation.layout.Column | |
| import androidx.compose.foundation.layout.PaddingValues | |
| import androidx.compose.foundation.layout.Row | |
| import androidx.compose.foundation.layout.Spacer | |
| import androidx.compose.foundation.layout.fillMaxHeight | |
| import androidx.compose.foundation.layout.fillMaxSize | |
| import androidx.compose.foundation.layout.fillMaxWidth | |
| import androidx.compose.foundation.layout.height | |
| import androidx.compose.foundation.layout.padding | |
| import androidx.compose.foundation.layout.size | |
| import androidx.compose.foundation.layout.width | |
| import androidx.compose.foundation.lazy.LazyColumn | |
| import androidx.compose.foundation.lazy.LazyListState | |
| import androidx.compose.foundation.lazy.LazyRow | |
| import androidx.compose.foundation.shape.CircleShape | |
| import androidx.compose.foundation.shape.RoundedCornerShape | |
| import androidx.compose.material3.Card | |
| import androidx.compose.material3.CardDefaults | |
| import androidx.compose.material3.MaterialTheme | |
| import androidx.compose.material3.Text | |
| import androidx.compose.runtime.Composable | |
| import androidx.compose.runtime.LaunchedEffect | |
| import androidx.compose.runtime.remember | |
| import androidx.compose.runtime.snapshotFlow | |
| import androidx.compose.ui.Alignment | |
| import androidx.compose.ui.Modifier | |
| import androidx.compose.ui.graphics.Color | |
| import androidx.compose.ui.text.style.TextAlign | |
| import androidx.compose.ui.unit.dp | |
| import kotlinx.coroutines.flow.collectLatest | |
| @Composable | |
| fun GymSessions() { | |
| val sessionNames = listOf( | |
| "Cardio", "Yoga", "Strength", "Cycling", "Pilates", | |
| "Boxing", "HIIT", "Zumba", "CrossFit", "Stretching" | |
| ) | |
| val sessionColors = listOf( | |
| Color(0xFFEF5350), Color(0xFF26A69A), Color(0xFF7E57C2), | |
| Color(0xFF42A5F5), Color(0xFFFFB74D), Color(0xFFD32F2F), | |
| Color(0xFF66BB6A), Color(0xFFBA68C8), Color(0xFF5C6BC0), Color(0xFF90A4AE) | |
| ) | |
| val hours = (0..23).map { String.format("%02d:00", it) } | |
| val sessionLessons = remember { | |
| List(sessionNames.size) { sessionIndex -> | |
| val shuffledHours = hours.shuffled() | |
| val lessonHours = shuffledHours.take((10..18).random()) | |
| hours.associateWith { hour -> | |
| if (hour in lessonHours) { | |
| Lesson( | |
| title = "${sessionNames[sessionIndex]} - $hour", | |
| instructor = "Coach ${'A' + sessionIndex}" | |
| ) | |
| } else null | |
| } | |
| } | |
| } | |
| val hourHeaderState = remember { LazyListState() } | |
| val sessionStates = remember { List(sessionNames.size) { LazyListState() } } | |
| // Synchronize horizontal scroll of all session rows with the hour header | |
| LaunchedEffect(Unit) { | |
| snapshotFlow { hourHeaderState.firstVisibleItemIndex to hourHeaderState.firstVisibleItemScrollOffset } | |
| .collectLatest { (index, offset) -> | |
| sessionStates.forEach { state -> | |
| if (state.firstVisibleItemIndex != index || state.firstVisibleItemScrollOffset != offset) { | |
| state.scrollToItem(index, offset) | |
| } | |
| } | |
| } | |
| } | |
| Column( | |
| modifier = Modifier | |
| .fillMaxSize() | |
| .background(Color.Black) | |
| ) { | |
| Spacer(modifier = Modifier.height(50.dp)) | |
| Text( | |
| text = "Today's Gym Lessons", | |
| style = MaterialTheme.typography.headlineMedium, | |
| color = Color.White, | |
| modifier = Modifier.padding(16.dp) | |
| ) | |
| HourHeaderRow(hours = hours, state = hourHeaderState) | |
| Spacer(Modifier.height(8.dp)) | |
| LazyColumn( | |
| modifier = Modifier.fillMaxSize() | |
| ) { | |
| items(sessionNames.size) { index -> | |
| val sessionName = sessionNames[index] | |
| val sessionColor = sessionColors[index] | |
| val lessons = sessionLessons[index] | |
| Column( | |
| modifier = Modifier | |
| .fillMaxWidth() | |
| .padding(bottom = 24.dp) | |
| ) { | |
| Row( | |
| verticalAlignment = Alignment.CenterVertically, | |
| modifier = Modifier | |
| .padding(start = 16.dp, bottom = 4.dp) | |
| ) { | |
| Box( | |
| modifier = Modifier | |
| .size(12.dp) | |
| .background(sessionColor, CircleShape) | |
| ) | |
| Spacer(modifier = Modifier.width(8.dp)) | |
| Text( | |
| text = sessionName, | |
| style = MaterialTheme.typography.titleMedium, | |
| color = Color.White | |
| ) | |
| } | |
| LazyRow( | |
| state = sessionStates[index], | |
| contentPadding = PaddingValues(horizontal = 16.dp), | |
| horizontalArrangement = Arrangement.spacedBy(16.dp), | |
| modifier = Modifier | |
| .fillMaxWidth() | |
| .height(160.dp) | |
| ) { | |
| items(hours.size) { hourIndex -> | |
| val hour = hours[hourIndex] | |
| val lesson = lessons[hour] | |
| if (lesson != null) { | |
| GymLessonCard( | |
| title = lesson.title, | |
| time = hour, | |
| instructor = lesson.instructor, | |
| color = sessionColor | |
| ) | |
| } else { | |
| EmptyLessonCard(time = hour) | |
| } | |
| } | |
| } | |
| } | |
| } | |
| } | |
| Spacer(Modifier.height(100.dp)) | |
| } | |
| } | |
| @Composable | |
| fun HourHeaderRow(hours: List<String>, state: LazyListState) { | |
| Column( | |
| modifier = Modifier | |
| .fillMaxWidth() | |
| .height(80.dp) | |
| .padding(bottom = 8.dp) | |
| ) { | |
| Text( | |
| text = "Hours", | |
| style = MaterialTheme.typography.titleMedium, | |
| color = Color.White, | |
| modifier = Modifier.padding(start = 16.dp, bottom = 4.dp) | |
| ) | |
| LazyRow( | |
| state = state, | |
| contentPadding = PaddingValues(horizontal = 16.dp), | |
| horizontalArrangement = Arrangement.spacedBy(16.dp), | |
| modifier = Modifier.fillMaxSize() | |
| ) { | |
| items(hours.size) { index -> | |
| HourCard(hour = hours[index]) | |
| } | |
| } | |
| } | |
| } | |
| data class Lesson(val title: String, val instructor: String) | |
| @Composable | |
| fun GymLessonCard( | |
| title: String, | |
| time: String, | |
| instructor: String, | |
| color: Color | |
| ) { | |
| Card( | |
| shape = RoundedCornerShape(20.dp), | |
| elevation = CardDefaults.cardElevation(8.dp), | |
| colors = CardDefaults.cardColors(containerColor = color), | |
| modifier = Modifier | |
| .width(260.dp) | |
| .fillMaxHeight() | |
| ) { | |
| Column( | |
| modifier = Modifier | |
| .padding(16.dp) | |
| .fillMaxSize(), | |
| verticalArrangement = Arrangement.SpaceBetween | |
| ) { | |
| Text(text = title, style = MaterialTheme.typography.titleLarge, color = Color.White) | |
| Text(text = time, style = MaterialTheme.typography.bodyLarge, color = Color.White) | |
| Text( | |
| text = instructor, | |
| style = MaterialTheme.typography.bodyMedium, | |
| color = Color.White | |
| ) | |
| } | |
| } | |
| } | |
| @Composable | |
| fun EmptyLessonCard(time: String) { | |
| Card( | |
| shape = RoundedCornerShape(20.dp), | |
| elevation = CardDefaults.cardElevation(2.dp), | |
| colors = CardDefaults.cardColors(containerColor = Color.DarkGray), | |
| modifier = Modifier | |
| .width(260.dp) | |
| .fillMaxHeight() | |
| ) { | |
| Box( | |
| modifier = Modifier | |
| .fillMaxSize() | |
| .padding(16.dp), | |
| contentAlignment = Alignment.Center | |
| ) { | |
| Text( | |
| text = time, | |
| style = MaterialTheme.typography.bodySmall, | |
| color = Color.LightGray, | |
| textAlign = TextAlign.Center | |
| ) | |
| } | |
| } | |
| } | |
| @Composable | |
| fun HourCard(hour: String) { | |
| Card( | |
| shape = RoundedCornerShape(12.dp), | |
| elevation = CardDefaults.cardElevation(2.dp), | |
| colors = CardDefaults.cardColors(containerColor = Color.Gray), | |
| modifier = Modifier | |
| .width(260.dp) | |
| .fillMaxHeight() | |
| ) { | |
| Box( | |
| modifier = Modifier.fillMaxSize(), | |
| contentAlignment = Alignment.Center | |
| ) { | |
| Text( | |
| text = hour, | |
| style = MaterialTheme.typography.titleMedium, | |
| color = Color.White | |
| ) | |
| } | |
| } | |
| } |
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