Add Location, WeatherForecastData, Searchable and PreviewableItem models

src/main/kotlin/org/jetbrains/plugins/template/weatherApp/model/Location.kt

@@ -0,0 +1,34 @@
+package org.jetbrains.plugins.template.weatherApp.model
+
+import androidx.compose.runtime.Immutable
+
+/**
+ * Represents a location with a name and associated country.
+ *
+ * @property name The name of the location.
+ * @property country The associated country of the location.
+ * @property id A derived unique identifier for the location in the format `name, country`.
+ */
+@Immutable
+internal data class Location(val name: String, val country: String) : PreviewableItem, Searchable {
+    val id: String = "$name, $country"
+
+    override fun isSearchApplicable(query: String): Boolean {
+        val applicableCandidates = listOf(
+            id,
+            name,
+            country,
+            name.split(" ").map { it.first() }.joinToString(""),
+            "${name.first()}${country.first()}",
+            "${country.first()}${name.first()}"
+        )
+
+        return applicableCandidates.any { it.contains(query, ignoreCase = true) }
+    }
+
+    override val label: String
+        get() = id
+}
+
+@Immutable
+internal data class SelectableLocation(val location: Location, val isSelected: Boolean)

src/main/kotlin/org/jetbrains/plugins/template/weatherApp/model/PreviewableItem.kt

@@ -0,0 +1,5 @@
+package org.jetbrains.plugins.template.weatherApp.model
+
+interface PreviewableItem {
+    val label: String
+}

src/main/kotlin/org/jetbrains/plugins/template/weatherApp/model/Searchable.kt

@@ -0,0 +1,8 @@
+package org.jetbrains.plugins.template.weatherApp.model
+
+/**
+ * Represents an entity that can be filtered by a search query.
+ */
+internal interface Searchable {
+    fun isSearchApplicable(query: String): Boolean
+}

src/main/kotlin/org/jetbrains/plugins/template/weatherApp/model/WeatherForecastData.kt

@@ -0,0 +1,62 @@
+package org.jetbrains.plugins.template.weatherApp.model
+
+import java.time.LocalDateTime
+
+/**
+ * Data class representing weather information to be displayed in the Weather Card.
+ */
+data class WeatherForecastData(
+    val cityName: String,
+    val temperature: Float,
+    val currentTime: LocalDateTime,
+    val windSpeed: Float,
+    val windDirection: WindDirection,
+    val humidity: Int, // Percentage
+    val weatherType: WeatherType
+) {
+    companion object Companion {
+        val EMPTY: WeatherForecastData = WeatherForecastData(
+            "",
+            0f,
+            LocalDateTime.now(),
+            0f,
+            WindDirection.NORTH,
+            0,
+            WeatherType.SUNNY
+        )
+    }
+}
+
+/**
+ * Enum representing different weather types.
+ */
+enum class WeatherType(val label: String) {
+    SUNNY("Sunny"),
+    CLOUDY("Cloudy"),
+    PARTLY_CLOUDY("Partly Cloudy"),
+    RAINY("Rainy"),
+    SNOWY("Snowy"),
+    STORMY("Stormy");
+
+    companion object {
+        fun random(): WeatherType = entries.toTypedArray().random()
+    }
+}
+
+/**
+ * Enum representing wind directions.
+ */
+enum class WindDirection(val label: String) {
+    NORTH("N"),
+    NORTH_EAST("NE"),
+    EAST("E"),
+    SOUTH_EAST("SE"),
+    SOUTH("S"),
+    SOUTH_WEST("SW"),
+    WEST("W"),
+    NORTH_WEST("NW");
+
+    companion object {
+        fun random(): WindDirection = entries.toTypedArray().random()
+    }
+}