chore(contentreader): add deleteFromCache and allow copyToCache with a max size constraint

Signed-off-by: Brandon McAnsh <git@bmcreations.dev>

Author: bmc08gt

gradle/libs.versions.toml

@@ -18,6 +18,7 @@ androidx-camerax = "1.6.0"
 androidx-credentials = "1.5.0"
 androidx-core = "1.18.0"
 androidx-datastore = "1.2.1"
+androidx-exif = "1.4.2"
 androidx-lifecycle = "2.10.0"
 androidx-navigation = "2.9.7"
 navigation3 = "1.0.1"
@@ -120,6 +121,7 @@ androidx-core = { module = "androidx.core:core-ktx", version.ref = "androidx-cor
 androidx-credentials = { module = "androidx.credentials:credentials", version.ref = "androidx-credentials" }
 androidx-credentials-play-auth = { module = "androidx.credentials:credentials-play-services-auth", version.ref = "androidx-credentials" }
 androidx-localbroadcastmanager = { module = "androidx.localbroadcastmanager:localbroadcastmanager", version = "1.1.0" }
+androidx-exifinterface = { module = "androidx.exifinterface:exifinterface", version.ref = "androidx-exif" }
 androidx-lifecycle-process = { module = "androidx.lifecycle:lifecycle-process", version.ref = "androidx-lifecycle" }
 androidx-lifecycle-runtime = { module = "androidx.lifecycle:lifecycle-runtime-ktx", version.ref = "androidx-lifecycle" }
 androidx-lifecycle-viewmodel = { module = "androidx.lifecycle:lifecycle-viewmodel-ktx", version.ref = "androidx-lifecycle" }

ui/resources/build.gradle.kts

@@ -10,6 +10,7 @@ dependencies {
     api(libs.androidx.annotation)
     api(libs.androidx.appcompat)
     api(libs.androidx.core)
+    implementation(libs.androidx.exifinterface)
     api(libs.kotlin.stdlib)
     api(libs.kotlinx.coroutines.core)
     api(libs.kotlinx.coroutines.rx3)

ui/resources/src/main/java/com/getcode/util/resources/ContentReader.kt

@@ -5,20 +5,22 @@ import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 import android.graphics.Matrix
 import android.net.Uri
-import android.media.ExifInterface
+import androidx.exifinterface.media.ExifInterface
 import java.io.File
+import androidx.core.graphics.scale
 
 interface ContentReader {
     fun readBytes(uri: Uri): ByteArray?
-    fun copyToCache(uri: Uri, fileName: String): Uri?
+    fun copyToCache(uri: Uri, fileName: String, maxSize: Int = Int.MAX_VALUE): Uri?
+    fun removeFromCache(uri: Uri)
 }
 
 class AndroidContentReader(private val context: Context) : ContentReader {
     override fun readBytes(uri: Uri): ByteArray? {
         return context.contentResolver.openInputStream(uri)?.use { it.readBytes() }
     }
 
-    override fun copyToCache(uri: Uri, fileName: String): Uri? {
+    override fun copyToCache(uri: Uri, fileName: String, maxSize: Int): Uri? {
         val bytes = readBytes(uri) ?: return null
         val bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.size) ?: return null
 
@@ -39,8 +41,21 @@ class AndroidContentReader(private val context: Context) : ContentReader {
             bitmap
         }
 
+        val scaled = if (oriented.width > maxSize || oriented.height > maxSize) {
+            val scale = maxSize.toFloat() / maxOf(oriented.width, oriented.height)
+            val newWidth = (oriented.width * scale).toInt()
+            val newHeight = (oriented.height * scale).toInt()
+            oriented.scale(newWidth, newHeight)
+        } else {
+            oriented
+        }
+
         val file = File(context.cacheDir, fileName)
-        file.outputStream().use { oriented.compress(Bitmap.CompressFormat.PNG, 100, it) }
+        file.outputStream().use { scaled.compress(Bitmap.CompressFormat.PNG, 100, it) }
         return Uri.fromFile(file)
     }
+
+    override fun removeFromCache(uri: Uri) {
+        uri.path?.let { File(it).delete() }
+    }
 }