live2d model

app/src/main/java/com/digitalperson/util/FileHelper.kt

@@ -0,0 +1,60 @@
+package com.digitalperson.util
+
+import android.content.Context
+import android.util.Log
+import com.digitalperson.config.AppConfig
+import java.io.File
+import java.io.FileOutputStream
+
+object FileHelper {
+    private const val TAG = AppConfig.TAG
+    
+    fun assetExists(context: Context, path: String): Boolean {
+        return try {
+            context.assets.open(path).close()
+            true
+        } catch (_: Throwable) {
+            false
+        }
+    }
+    
+    fun copyAssetsToInternal(context: Context, assetDir: String, targetDir: File, files: Array<String>): File {
+        if (!targetDir.exists()) targetDir.mkdirs()
+
+        for (name in files) {
+            val assetPath = "$assetDir/$name"
+            val outFile = File(targetDir, name)
+            if (outFile.exists() && outFile.length() > 0) continue
+            try {
+                context.assets.open(assetPath).use { input ->
+                    FileOutputStream(outFile).use { output ->
+                        input.copyTo(output)
+                    }
+                }
+            } catch (e: Exception) {
+                Log.e(TAG, "Failed to copy asset $assetPath: ${e.message}")
+            }
+        }
+        return targetDir
+    }
+    
+    fun copySenseVoiceAssets(context: Context): File {
+        val outDir = File(context.filesDir, AppConfig.Asr.MODEL_DIR)
+        val files = arrayOf(
+            "am.mvn",
+            "chn_jpn_yue_eng_ko_spectok.bpe.model",
+            "embedding.npy",
+            "sense-voice-encoder.rknn"
+        )
+        return copyAssetsToInternal(context, AppConfig.Asr.MODEL_DIR, outDir, files)
+    }
+    
+    fun ensureDir(dir: File): File {
+        if (!dir.exists()) dir.mkdirs()
+        return dir
+    }
+    
+    fun getAsrAudioDir(context: Context): File {
+        return ensureDir(File(context.filesDir, "asr_audio"))
+    }
+}