Move FileSizeFormatter to module :libraries:androidutils

libraries/androidutils/src/main/kotlin/io/element/android/libraries/androidutils/filesize/AndroidFileSizeFormatter.kt

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.libraries.androidutils.filesize
+
+import android.content.Context
+import android.os.Build
+import android.text.format.Formatter
+import com.squareup.anvil.annotations.ContributesBinding
+import io.element.android.libraries.di.AppScope
+import io.element.android.libraries.di.ApplicationContext
+import javax.inject.Inject
+
+@ContributesBinding(AppScope::class)
+class AndroidFileSizeFormatter @Inject constructor(
+    @ApplicationContext private val context: Context,
+    ) : FileSizeFormatter {
+    override fun format(fileSize: Long, useShortFormat: Boolean): String {
+        // Since Android O, the system considers that 1kB = 1000 bytes instead of 1024 bytes.
+        // We want to avoid that.
+        val normalizedSize = if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.N) {
+            fileSize
+        } else {
+            // First convert the size
+            when {
+                fileSize < 1024 -> fileSize
+                fileSize < 1024 * 1024 -> fileSize * 1000 / 1024
+                fileSize < 1024 * 1024 * 1024 -> fileSize * 1000 / 1024 * 1000 / 1024
+                else -> fileSize * 1000 / 1024 * 1000 / 1024 * 1000 / 1024
+            }
+        }
+
+        return if (useShortFormat) {
+            Formatter.formatShortFileSize(context, normalizedSize)
+        } else {
+            Formatter.formatFileSize(context, normalizedSize)
+        }
+    }
+}

libraries/androidutils/src/main/kotlin/io/element/android/libraries/androidutils/filesize/FakeFileSizeFormatter.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.libraries.androidutils.filesize
+
+class FakeFileSizeFormatter : FileSizeFormatter {
+    override fun format(fileSize: Long, useShortFormat: Boolean): String {
+        return "$fileSize Bytes"
+    }
+}

libraries/androidutils/src/main/kotlin/io/element/android/libraries/androidutils/filesize/FileSizeFormatter.kt

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.libraries.androidutils.filesize
+
+interface FileSizeFormatter {
+    /**
+     * Formats a content size to be in the form of bytes, kilobytes, megabytes, etc.
+     */
+    fun format(fileSize: Long, useShortFormat: Boolean = true): String
+}