Feature/2

build.gradle.kts

@@ -2,6 +2,7 @@
 plugins {
     alias(libs.plugins.android.application) apply false
     alias(libs.plugins.kotlin.android) apply false
+    alias(libs.plugins.android.library) apply false
 //    alias(libs.plugins.secrets.gradle.plugin) apply false
 }
 

data/.gitignore

@@ -0,0 +1 @@
+/build

data/build.gradle.kts

@@ -0,0 +1,51 @@
+plugins {
+    alias(libs.plugins.android.library)
+    alias(libs.plugins.kotlin.android)
+}
+
+android {
+    namespace = "ny.photomap.data"
+    compileSdk = 35
+
+    defaultConfig {
+        minSdk = 29
+
+        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_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+    kotlinOptions {
+        jvmTarget = "11"
+    }
+    testOptions {
+        unitTests {
+            isIncludeAndroidResources = true
+        }
+    }
+}
+
+dependencies {
+
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.material)
+    implementation(libs.androidx.exifinterface)
+    testImplementation(libs.junit)
+    testImplementation(libs.mockito.kotlin)
+    testImplementation(libs.robolectric)
+    androidTestImplementation(libs.androidx.junit)
+    androidTestImplementation(libs.androidx.espresso.core)
+}

data/proguard-rules.pro

@@ -0,0 +1,21 @@
+# 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

data/src/androidTest/java/ny/photomap/data/ExampleInstrumentedTest.kt

@@ -0,0 +1,24 @@
+package ny.photomap.data
+
+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("ny.photomap.data.test", appContext.packageName)
+    }
+}

data/src/main/AndroidManifest.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+</manifest>

data/src/main/java/ny/photomap/data/PhotoDataSource.kt

@@ -0,0 +1,54 @@
+package ny.photomap.data
+
+import android.content.ContentResolver
+import android.content.ContentUris
+import android.database.Cursor
+import android.net.Uri
+import android.provider.MediaStore
+
+class PhotoDataSource(private val contentResolver: ContentResolver) {
+
+    private val projection = arrayOf(
+        MediaStore.Images.Media._ID,
+        MediaStore.Images.Media.DATE_TAKEN
+    )
+
+    private val order =
+        "${MediaStore.Images.Media.DATE_TAKEN}, ${MediaStore.Images.Media.DATE_ADDED}, ${MediaStore.Images.Media.DATE_MODIFIED} DESC"
+
+    fun getAllPhotoUriList(): List<Uri> = getPhotoUriList(null, null)
+    fun getDateRangePhotoUriList(startMilliSecond: Long, endMilliSecond: Long): List<Uri> =
+        getPhotoUriList(
+            "${MediaStore.Images.Media.DATE_TAKEN} BETWEEN ? AND ?",
+            arrayOf(startMilliSecond.toString(), endMilliSecond.toString())
+        )
+
+    private fun getPhotoUriList(selection: String?, selectionArgs: Array<String>?): List<Uri> {
+        val photoUriList = mutableListOf<Uri>()
+        try {
+            val query: Cursor? = contentResolver.query(
+                MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
+                projection,
+                selection,
+                selectionArgs,
+                order,
+                null
+            )
+
+            query?.use { cursor ->
+                val idColumn = cursor.getColumnIndexOrThrow(MediaStore.Images.Media._ID)
+
+                while (cursor.moveToNext()) {
+                    val id = cursor.getLong(idColumn)
+                    val uri =
+                        ContentUris.withAppendedId(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, id)
+                    photoUriList.add(uri)
+                }
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+        return photoUriList
+    }
+
+}

data/src/main/java/ny/photomap/data/PhotoRepository.kt

@@ -0,0 +1,83 @@
+package ny.photomap.data
+
+import android.content.ContentResolver
+import android.net.Uri
+import androidx.exifinterface.media.ExifInterface
+import ny.photomap.model.PhotoInfo
+
+class PhotoRepository(val contentResolver: ContentResolver, val dataSource: PhotoDataSource) {
+
+    fun getAllPhotoInfoList(): List<PhotoInfo> {
+        return dataSource.getAllPhotoUriList().mapNotNull {
+            convertPhotoInfo(it)
+        }
+    }
+
+    fun getDateRangePhotoInfoList(startMilliSecond: Long, endMilliSecond: Long): List<PhotoInfo> {
+        return dataSource.getDateRangePhotoUriList(
+            startMilliSecond = startMilliSecond,
+            endMilliSecond = endMilliSecond
+        ).mapNotNull {
+            convertPhotoInfo(it)
+        }
+    }
+
+    fun getLocationPhotoInfoList(
+        targetLatitude: Double,
+        targetLongitude: Double,
+        surroundRange: Double,
+    ): List<PhotoInfo> {
+        return dataSource.getAllPhotoUriList().mapNotNull {
+            convertPhotoInfo(
+                uri = it,
+                targetLatitude = targetLatitude,
+                targetLongitude = targetLongitude,
+                surroundRange = surroundRange
+            )
+        }
+    }
+
+    fun convertPhotoInfo(uri: Uri): PhotoInfo? = getExifInterface(uri)?.let {
+        it.latLong?.let { (latitude, longitude) ->
+            PhotoInfo(
+                uri = uri,
+                latitude = latitude,
+                longitude = longitude,
+                generationTime = it.generationTime
+            )
+        }
+    }
+
+    fun convertPhotoInfo(
+        uri : Uri,
+        targetLatitude: Double,
+        targetLongitude: Double,
+        surroundRange: Double,
+    ): PhotoInfo? =
+        getExifInterface(uri)?.let {
+            it.latLong?.let { (latitude, longitude) ->
+                // todo 근처 위치 판단 로직
+                if (targetLatitude in latitude - surroundRange..latitude + surroundRange
+                    && targetLongitude in longitude - surroundRange..longitude + surroundRange
+                ) {
+                    PhotoInfo(
+                        uri = uri,
+                        latitude = latitude,
+                        longitude = longitude,
+                        generationTime = it.generationTime
+                    )
+                } else null
+            }
+        }
+
+
+    fun getExifInterface(uri: Uri): ExifInterface? =
+        contentResolver.openInputStream(uri)?.use { inputStream ->
+            ExifInterface(inputStream)
+        }
+
+    val ExifInterface.generationTime: String?
+        get() = getAttribute(ExifInterface.TAG_DATETIME_ORIGINAL)
+            ?: getAttribute(ExifInterface.TAG_DATETIME)
+            ?: getAttribute(ExifInterface.TAG_DATETIME_DIGITIZED)
+}

data/src/main/java/ny/photomap/model/PhotoInfo.kt

@@ -0,0 +1,10 @@
+package ny.photomap.model
+
+import android.net.Uri
+
+data class PhotoInfo(
+    val uri: Uri,
+    val latitude: Double,
+    val longitude: Double,
+    val generationTime: String?,
+)

data/src/test/java/ny/photomap/data/ExampleUnitTest.kt

@@ -0,0 +1,17 @@
+package ny.photomap.data
+
+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)
+    }
+}