[Feature] 콜밴 글쓰기 날짜 선택 필드 추가

feature/callvan/src/main/java/in/koreatech/koin/feature/callvan/ui/create/component/CallvanDateField.kt

@@ -0,0 +1,255 @@
+package `in`.koreatech.koin.feature.callvan.ui.create.component
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.animation.expandVertically
+import androidx.compose.animation.shrinkVertically
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.KeyboardArrowDown
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.rotate
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import `in`.koreatech.koin.core.designsystem.theme.RebrandKoinTheme
+import `in`.koreatech.koin.feature.callvan.R
+import java.time.LocalDate
+import java.time.YearMonth
+import kotlinx.collections.immutable.persistentListOf
+import kotlinx.collections.immutable.toPersistentList
+
+@Composable
+fun CallvanDateField(
+    formattedDate: String,
+    isPickerVisible: Boolean,
+    selectedYear: Int,
+    selectedMonth: Int,
+    selectedDay: Int,
+    modifier: Modifier = Modifier,
+    onFieldClick: () -> Unit = {},
+    onYearChange: (Int) -> Unit = {},
+    onMonthChange: (Int) -> Unit = {},
+    onDayChange: (Int) -> Unit = {},
+    onReset: () -> Unit = {},
+    onConfirm: () -> Unit = {}
+) {
+    val arrowRotation by animateFloatAsState(
+        targetValue = if (isPickerVisible) 180f else 0f,
+        label = "arrowRotation"
+    )
+
+    Column(modifier = modifier.fillMaxWidth()) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 24.dp, vertical = 12.dp),
+            verticalArrangement = Arrangement.spacedBy(4.dp)
+        ) {
+            CallvanSectionHeader(
+                label = stringResource(R.string.callvan_create_date_label),
+                hint = stringResource(R.string.callvan_create_date_hint)
+            )
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .background(RebrandKoinTheme.colors.neutral100, RebrandKoinTheme.shapes.small)
+                    .clickable(onClick = onFieldClick)
+                    .padding(horizontal = 12.dp, vertical = 8.dp),
+                horizontalArrangement = Arrangement.SpaceBetween,
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                Text(
+                    text = formattedDate,
+                    style = RebrandKoinTheme.typography.regular14,
+                    color = RebrandKoinTheme.colors.neutral800
+                )
+                Icon(
+                    imageVector = Icons.Default.KeyboardArrowDown,
+                    contentDescription = null,
+                    tint = RebrandKoinTheme.colors.neutral800,
+                    modifier = Modifier
+                        .size(24.dp)
+                        .rotate(arrowRotation)
+                )
+            }
+        }
+        AnimatedVisibility(
+            visible = isPickerVisible,
+            enter = expandVertically(),
+            exit = shrinkVertically()
+        ) {
+            CallvanDatePickerCard(
+                selectedYear = selectedYear,
+                selectedMonth = selectedMonth,
+                selectedDay = selectedDay,
+                onYearChange = onYearChange,
+                onMonthChange = onMonthChange,
+                onDayChange = onDayChange,
+                onReset = onReset,
+                onConfirm = onConfirm
+            )
+        }
+    }
+}
+
+@Composable
+private fun CallvanDatePickerCard(
+    selectedYear: Int,
+    selectedMonth: Int,
+    selectedDay: Int,
+    modifier: Modifier = Modifier,
+    onYearChange: (Int) -> Unit = {},
+    onMonthChange: (Int) -> Unit = {},
+    onDayChange: (Int) -> Unit = {},
+    onReset: () -> Unit = {},
+    onConfirm: () -> Unit = {}
+) {
+    val today = remember { LocalDate.now() }
+    val currentYear = remember { today.year }
+    val currentMonth = remember { today.monthValue }
+    val currentDay = remember { today.dayOfMonth }
+    val years = remember { persistentListOf("${currentYear}년", "${currentYear + 1}년") }
+    val startMonth = remember(selectedYear) {
+        if (selectedYear == currentYear) currentMonth else 1
+    }
+    val months = remember(selectedYear) {
+        (startMonth..12).map { "${it}월" }.toPersistentList()
+    }
+    val startDay = remember(selectedYear, selectedMonth) {
+        if (selectedYear == currentYear && selectedMonth == currentMonth) currentDay else 1
+    }
+    val days = remember(selectedYear, selectedMonth) {
+        val daysCount = YearMonth.of(selectedYear, selectedMonth).lengthOfMonth()
+        (startDay..daysCount).map { "${it}일" }.toPersistentList()
+    }
+
+    val yearIndex = remember(selectedYear, currentYear) {
+        (selectedYear - currentYear).coerceIn(0, years.size - 1)
+    }
+    val monthIndex = remember(selectedMonth, startMonth) {
+        (selectedMonth - startMonth).coerceIn(0, months.size - 1)
+    }
+    val dayIndex = remember(selectedDay, startDay, days.size) {
+        (selectedDay - startDay).coerceIn(0, days.size - 1)
+    }
+
+    Card(
+        modifier = modifier
+            .fillMaxWidth()
+            .padding(horizontal = 24.dp),
+        shape = RebrandKoinTheme.shapes.small,
+        colors = CardDefaults.cardColors(containerColor = RebrandKoinTheme.colors.neutral100),
+        elevation = CardDefaults.cardElevation(defaultElevation = 4.dp)
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 24.dp, vertical = 12.dp),
+            verticalArrangement = Arrangement.spacedBy(8.dp)
+        ) {
+            Row(
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                CallvanScrollPicker(
+                    items = years,
+                    selectedIndex = yearIndex,
+                    onIndexChange = { index ->
+                        val newYear = currentYear + index
+                        onYearChange(newYear)
+                        val newStartDay = if (newYear == currentYear && selectedMonth == currentMonth) currentDay else 1
+                        if (selectedDay < newStartDay) onDayChange(newStartDay)
+                    },
+                    modifier = Modifier.weight(1f)
+                )
+                CallvanScrollPicker(
+                    items = months,
+                    selectedIndex = monthIndex,
+                    onIndexChange = { index ->
+                        val newMonth = startMonth + index
+                        onMonthChange(newMonth)
+                        val newStartDay = if (selectedYear == currentYear && newMonth == currentMonth) currentDay else 1
+                        if (selectedDay < newStartDay) onDayChange(newStartDay)
+                    },
+                    modifier = Modifier.weight(1f)
+                )
+                CallvanScrollPicker(
+                    items = days,
+                    selectedIndex = dayIndex,
+                    onIndexChange = { index -> onDayChange(startDay + index) },
+                    modifier = Modifier.weight(1f)
+                )
+            }
+            HorizontalDivider(color = RebrandKoinTheme.colors.neutral200)
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.spacedBy(16.dp, Alignment.End)
+            ) {
+                Text(
+                    text = stringResource(R.string.callvan_create_picker_reset),
+                    style = RebrandKoinTheme.typography.medium14,
+                    color = RebrandKoinTheme.colors.primary500,
+                    modifier = Modifier.clickable(onClick = onReset)
+                )
+                Text(
+                    text = stringResource(R.string.callvan_create_picker_confirm),
+                    style = RebrandKoinTheme.typography.medium14,
+                    color = RebrandKoinTheme.colors.primary500,
+                    modifier = Modifier.clickable(onClick = onConfirm)
+                )
+            }
+        }
+    }
+}
+
+@Preview(showBackground = true)
+@Composable
+private fun CallvanDateFieldPreview() {
+    CallvanDateField(
+        formattedDate = "2026년 03월 07일",
+        isPickerVisible = false,
+        selectedYear = 2026,
+        selectedMonth = 3,
+        selectedDay = 7,
+        onFieldClick = {},
+        onYearChange = {},
+        onMonthChange = {},
+        onDayChange = {},
+        onReset = {},
+        onConfirm = {}
+    )
+}
+
+@Preview(showBackground = true)
+@Composable
+private fun CallvanDateFieldPickerVisiblePreview() {
+    CallvanDateField(
+        formattedDate = "2026년 03월 07일",
+        isPickerVisible = true,
+        selectedYear = 2026,
+        selectedMonth = 3,
+        selectedDay = 7,
+        onFieldClick = {},
+        onYearChange = {},
+        onMonthChange = {},
+        onDayChange = {},
+        onReset = {},
+        onConfirm = {}
+    )
+}