Refactor: Relocate PersianDatePickerState and SelectableDates

This commit refactors the location of `PersianDatePickerState` and introduces the `SelectableDates` interface to the `domain` package.

**Key changes:**

- **Moved `PersianDatePickerState`:**
    - `PersianDatePickerState` and its implementation `PersianDatePickerStateImpl` were moved from `io.github.faridsolgi.view.internal` to `io.github.faridsolgi.view`.
- **Created `SelectableDates` interface:**
    - The `SelectableDates` interface was created in `io.github.faridsolgi.domain`. This interface defines methods `isSelectableDate` and `isSelectableYear` to control which dates and years are enabled in the date picker.
- **Updated Imports:** All imports were updated to reflect the new locations of the moved and created files.
- **Version Update:** Project version bumped from `0.0.2` to `0.0.3` in `library/build.gradle.kts`.

This refactoring improves the project structure by placing `SelectableDates` within the domain layer, as it represents a core business rule, and by making `PersianDatePickerState` a public part of the view layer.

Author: faridsolgi

library/build.gradle.kts

@@ -16,7 +16,7 @@ plugins {
 }
 
 group = "io.github.faridsolgi"
-version = "0.0.2"
+version = "0.0.3"
 
 kotlin {
     jvm()

library/src/commonMain/kotlin/io/github/faridsolgi/domain/SelectableDates.kt

@@ -0,0 +1,21 @@
+package io.github.faridsolgi.domain
+
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.runtime.Stable
+
+
+@Stable
+interface SelectableDates {
+
+    /**
+     * Returns true if the date item representing the [utcTimeMillis] should be enabled for
+     * selection in the UI.
+     */
+    fun isSelectableDate(utcTimeMillis: Long) = true
+
+    /**
+     * Returns true if a given [year] should be enabled for selection in the UI. When a year is
+     * defined as non selectable, all the dates in that year will also be non selectable.
+     */
+    fun isSelectableYear(year: Int) = true
+}

library/src/commonMain/kotlin/io/github/faridsolgi/util/PersianDatePickerStateExtensions.kt

@@ -1,7 +1,7 @@
 package io.github.faridsolgi.util
 
 import io.github.faridsolgi.persiandatetime.domain.PersianDateTime
-import io.github.faridsolgi.view.internal.PersianDatePickerState
+import io.github.faridsolgi.view.PersianDatePickerState
 
 
 internal fun PersianDatePickerState.navigateToPreviousMonth() {

library/src/commonMain/kotlin/io/github/faridsolgi/view/PersianDatePicker.kt

@@ -28,9 +28,7 @@ import io.github.faridsolgi.domain.model.PersianDatePickerTokens
 import io.github.faridsolgi.persiandatetime.converter.toDateString
 import io.github.faridsolgi.view.internal.DisplayModeToggleButton
 import io.github.faridsolgi.view.internal.PersianDatePickerCalender
-import io.github.faridsolgi.view.internal.PersianDatePickerState
 import io.github.faridsolgi.view.internal.ProvideContentColorTextStyle
-import io.github.faridsolgi.view.internal.rememberPersianDatePickerState
 import org.jetbrains.compose.ui.tooling.preview.Preview
 
 @Composable

…/view/internal/PersianDatePickerState.kt …aridsolgi/view/PersianDatePickerState.ktlibrary/src/commonMain/kotlin/io/github/faridsolgi/view/internal/PersianDatePickerState.kt renamed to library/src/commonMain/kotlin/io/github/faridsolgi/view/PersianDatePickerState.kt library/src/commonMain/kotlin/io/github/faridsolgi/view/internal/PersianDatePickerState.kt renamed to library/src/commonMain/kotlin/io/github/faridsolgi/view/PersianDatePickerState.kt

@@ -1,4 +1,4 @@
-package io.github.faridsolgi.view.internal
+package io.github.faridsolgi.view
 
 
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -10,14 +10,13 @@ import androidx.compose.runtime.saveable.Saver
 import androidx.compose.runtime.saveable.listSaver
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
-import io.github.faridsolgi.domain.model.DisplayMode
 import io.github.faridsolgi.domain.SelectableDates
-import io.github.faridsolgi.view.internal.PersianDatePickerStateImpl.Companion.Saver
+import io.github.faridsolgi.domain.model.DisplayMode
+import io.github.faridsolgi.view.PersianDatePickerStateImpl.Companion.Saver
 import io.github.faridsolgi.persiandatetime.converter.nowPersianDate
 import io.github.faridsolgi.persiandatetime.converter.toLocalDate
 import io.github.faridsolgi.persiandatetime.converter.toPersianDateTime
 import io.github.faridsolgi.persiandatetime.domain.PersianDateTime
-import io.github.faridsolgi.view.PersianDatePickerDefaults
 import kotlinx.datetime.TimeZone
 import kotlinx.datetime.atStartOfDayIn
 import kotlin.time.Clock
@@ -192,7 +191,7 @@ fun rememberPersianDatePickerState(
     initialDisplayMode: DisplayMode = DisplayMode.Companion.Picker,
     selectableDates: SelectableDates = PersianDatePickerDefaults.AllDatesSelectable,
 ): PersianDatePickerState {
-    return rememberSaveable(saver = PersianDatePickerStateImpl.Companion.Saver(selectableDates)) {
+    return rememberSaveable(saver = Saver(selectableDates)) {
         PersianDatePickerStateImpl(
             initialSelectedDate = initialSelectedDate,
             initDisplayedDate = initialDisplayedDate,

library/src/commonMain/kotlin/io/github/faridsolgi/view/internal/PersianCalender.kt

@@ -17,7 +17,6 @@ import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.aspectRatio
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.heightIn
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.grid.GridCells
 import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
@@ -54,6 +53,7 @@ import io.github.faridsolgi.util.canNavigateToNextMonth
 import io.github.faridsolgi.util.canNavigateToPreviousMonth
 import io.github.faridsolgi.util.navigateToNextMonth
 import io.github.faridsolgi.util.navigateToPreviousMonth
+import io.github.faridsolgi.view.PersianDatePickerState
 import kotlinx.datetime.TimeZone
 import kotlin.time.Clock
 import kotlin.time.ExperimentalTime