add android and desktop modules

icegps-shared/.gitignore

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+/build

icegps-shared/build.gradle.kts

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+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+
+plugins {
+    alias(libs.plugins.android.library)
+    alias(libs.plugins.kotlin.android)
+    alias(libs.plugins.kotlin.serialization)
+}
+
+android {
+    namespace = "com.icegps.shared"
+    compileSdk {
+        version = release(36)
+    }
+
+    defaultConfig {
+        minSdk = 28
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles("consumer-rules.pro")
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+}
+
+kotlin {
+    compilerOptions.jvmTarget = JvmTarget.JVM_17
+}
+
+dependencies {
+    implementation(libs.core.ktx)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.material)
+
+    api(libs.kotlinx.serialization.json)
+    api(libs.ktor.client.core)
+    api(libs.ktor.client.cio)
+    api(libs.ktor.serialization.kotlinx.json)
+    api(libs.ktor.client.content.negotiation)
+    api(libs.ktor.client.logging)
+    api(project(":math"))
+
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.ext.junit)
+    androidTestImplementation(libs.androidx.espresso.core)
+}

icegps-shared/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

icegps-shared/src/androidTest/java/com/icegps/shared/ExampleInstrumentedTest.kt

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+package com.icegps.shared
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.icegps.shared.test", appContext.packageName)
+    }
+}

icegps-shared/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+</manifest>

icegps-shared/src/main/java/com/icegps/shared/SharedHttpClient.kt

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+package com.icegps.shared
+
+import io.ktor.client.HttpClient
+import io.ktor.client.engine.cio.CIO
+import io.ktor.client.plugins.HttpTimeout
+import io.ktor.client.plugins.contentnegotiation.ContentNegotiation
+import io.ktor.client.plugins.logging.LogLevel
+import io.ktor.client.plugins.logging.Logger
+import io.ktor.client.plugins.logging.Logging
+import io.ktor.client.plugins.logging.SIMPLE
+import io.ktor.http.ContentType
+import io.ktor.serialization.kotlinx.json.json
+import kotlinx.serialization.json.Json
+
+/**
+ * @author tabidachinokaze
+ * @date 2025/11/20
+ */
+@Suppress("FunctionName")
+fun SharedHttpClient(json: Json): HttpClient {
+    return HttpClient(CIO) {
+        install(ContentNegotiation) {
+            json(
+                json = json,
+                contentType = ContentType.Text.Html
+            )
+            json(
+                json = json,
+                contentType = ContentType.Application.Json
+            )
+        }
+        install(Logging) {
+            this.level = LogLevel.ALL
+            this.logger = Logger.SIMPLE
+        }
+        install(HttpTimeout) {
+            requestTimeoutMillis = 1000 * 60 * 10
+            connectTimeoutMillis = 1000 * 60 * 5
+            socketTimeoutMillis = 1000 * 60 * 10
+        }
+    }
+}

icegps-shared/src/main/java/com/icegps/shared/SharedJson.kt

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+package com.icegps.shared
+
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.modules.SerializersModule
+
+/**
+ * @author tabidachinokaze
+ * @date 2025/11/20
+ */
+@Suppress("FunctionName")
+fun SharedJson(): Json {
+    return Json {
+        ignoreUnknownKeys = true
+        serializersModule = SerializersModule {
+        }
+    }
+}

icegps-shared/src/main/java/com/icegps/shared/api/LookupResponse.kt

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+package com.icegps.shared.api
+
+import com.icegps.shared.model.IGeoPoint
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class LookupResponse(
+    @SerialName("results")
+    val results: List<Result>
+) {
+    @Serializable
+    data class Result(
+        @SerialName("longitude")
+        override val longitude: Double,
+        @SerialName("latitude")
+        override val latitude: Double,
+        @SerialName("elevation")
+        override val altitude: Double,
+    ) : IGeoPoint
+}

icegps-shared/src/main/java/com/icegps/shared/api/OpenElevationApi.kt

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+package com.icegps.shared.api
+
+import com.icegps.shared.model.IGeoPoint
+import io.ktor.client.HttpClient
+import io.ktor.client.call.body
+import io.ktor.client.request.get
+import io.ktor.client.request.parameter
+import io.ktor.http.appendPathSegments
+
+/**
+ * @author tabidachinokaze
+ * @date 2025/11/20
+ */
+interface OpenElevationApi {
+    suspend fun lookup(values: List<IGeoPoint>): List<IGeoPoint>
+}
+
+class OpenElevation(
+    private val client: HttpClient
+) : OpenElevationApi {
+    private val baseUrl: String = "https://api.open-elevation.com/api/v1/"
+
+    // curl 'https://api.open-elevation.com/api/v1/lookup?locations=10,10|20,20|41.161758,-8.583933'
+    override suspend fun lookup(values: List<IGeoPoint>): List<IGeoPoint> {
+        val response = client.get(baseUrl) {
+            url {
+                appendPathSegments("lookup")
+                parameter(
+                    "locations",
+                    values.joinToString("|") { "${it.latitude},${it.longitude}" })
+            }
+        }
+        return response.body<LookupResponse>().results
+    }
+}

icegps-shared/src/main/java/com/icegps/shared/ktx/Any.kt

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+package com.icegps.shared.ktx
+
+/**
+ * @author tabidachinokaze
+ * @date 2025/11/22
+ */
+val Any.TAG: String get() = this::class.java.simpleName

icegps-shared/src/main/java/com/icegps/shared/model/GeoPoint.kt

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+package com.icegps.shared.model
+
+/**
+ * @author tabidachinokaze
+ * @date 2025/11/22
+ */
+data class GeoPoint(
+    override val longitude: Double,
+    override val latitude: Double,
+    override val altitude: Double
+) : IGeoPoint

icegps-shared/src/main/java/com/icegps/shared/model/IGeoPoint.kt

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+package com.icegps.shared.model
+
+/**
+ * @author tabidachinokaze
+ * @date 2025/11/22
+ */
+interface IGeoPoint {
+    val longitude: Double
+    val latitude: Double
+    val altitude: Double
+}

icegps-shared/src/test/java/com/icegps/shared/ExampleUnitTest.kt

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+package com.icegps.shared
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}