From 4295a011d31bc6335223f2c820c2e0aa5ae68785 Mon Sep 17 00:00:00 2001
From: Ming Ming <nkming2@gmail.com>
Date: Mon, 23 May 2022 22:18:51 +0800
Subject: [PATCH] Dump system logcat

---
 .../nc_photos/plugin/LogcatChannelHandler.kt  | 32 +++++++++++++++++++
 .../nkming/nc_photos/plugin/NcPhotosPlugin.kt |  9 ++++++
 plugin/lib/nc_photos_plugin.dart              |  1 +
 plugin/lib/src/logcat.dart                    | 12 +++++++
 4 files changed, 54 insertions(+)
 create mode 100644 plugin/android/src/main/kotlin/com/nkming/nc_photos/plugin/LogcatChannelHandler.kt
 create mode 100644 plugin/lib/src/logcat.dart

diff --git a/plugin/android/src/main/kotlin/com/nkming/nc_photos/plugin/LogcatChannelHandler.kt b/plugin/android/src/main/kotlin/com/nkming/nc_photos/plugin/LogcatChannelHandler.kt
new file mode 100644
index 00000000..c74c5e29
--- /dev/null
+++ b/plugin/android/src/main/kotlin/com/nkming/nc_photos/plugin/LogcatChannelHandler.kt
@@ -0,0 +1,32 @@
+package com.nkming.nc_photos.plugin
+
+import io.flutter.plugin.common.MethodCall
+import io.flutter.plugin.common.MethodChannel
+
+class LogcatChannelHandler : MethodChannel.MethodCallHandler {
+	companion object {
+		const val METHOD_CHANNEL = "${K.LIB_ID}/logcat_method"
+	}
+
+	override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {
+		when (call.method) {
+			"dump" -> {
+				try {
+					dump(result)
+				} catch (e: Throwable) {
+					result.error("systemException", e.toString(), null)
+				}
+			}
+		}
+	}
+
+	private fun dump(result: MethodChannel.Result) {
+		val logs = StringBuilder()
+		val process = Runtime.getRuntime().exec("logcat -d")
+		process.inputStream.bufferedReader().use {
+			while (it.readLine()?.also(logs::appendLine) != null) {
+			}
+		}
+		result.success(logs.toString())
+	}
+}
diff --git a/plugin/android/src/main/kotlin/com/nkming/nc_photos/plugin/NcPhotosPlugin.kt b/plugin/android/src/main/kotlin/com/nkming/nc_photos/plugin/NcPhotosPlugin.kt
index 8008ebf2..9f21006c 100644
--- a/plugin/android/src/main/kotlin/com/nkming/nc_photos/plugin/NcPhotosPlugin.kt
+++ b/plugin/android/src/main/kotlin/com/nkming/nc_photos/plugin/NcPhotosPlugin.kt
@@ -98,6 +98,13 @@ class NcPhotosPlugin : FlutterPlugin, ActivityAware,
 			PermissionChannelHandler.METHOD_CHANNEL
 		)
 		permissionMethodChannel.setMethodCallHandler(permissionChannelHandler)
+
+		val logcatChannelHandler = LogcatChannelHandler()
+		logcatMethodChannel = MethodChannel(
+			flutterPluginBinding.binaryMessenger,
+			LogcatChannelHandler.METHOD_CHANNEL
+		)
+		logcatMethodChannel.setMethodCallHandler(logcatChannelHandler)
 	}
 
 	override fun onDetachedFromEngine(
@@ -114,6 +121,7 @@ class NcPhotosPlugin : FlutterPlugin, ActivityAware,
 		contentUriMethodChannel.setMethodCallHandler(null)
 		permissionChannel.setStreamHandler(null)
 		permissionMethodChannel.setMethodCallHandler(null)
+		logcatMethodChannel.setMethodCallHandler(null)
 	}
 
 	override fun onAttachedToActivity(binding: ActivityPluginBinding) {
@@ -200,6 +208,7 @@ class NcPhotosPlugin : FlutterPlugin, ActivityAware,
 	private lateinit var contentUriMethodChannel: MethodChannel
 	private lateinit var permissionChannel: EventChannel
 	private lateinit var permissionMethodChannel: MethodChannel
+	private lateinit var logcatMethodChannel: MethodChannel
 
 	private lateinit var lockChannelHandler: LockChannelHandler
 	private lateinit var mediaStoreChannelHandler: MediaStoreChannelHandler
diff --git a/plugin/lib/nc_photos_plugin.dart b/plugin/lib/nc_photos_plugin.dart
index acb92591..f8e101f4 100644
--- a/plugin/lib/nc_photos_plugin.dart
+++ b/plugin/lib/nc_photos_plugin.dart
@@ -4,6 +4,7 @@ export 'src/content_uri.dart';
 export 'src/exception.dart';
 export 'src/image_processor.dart';
 export 'src/lock.dart';
+export 'src/logcat.dart';
 export 'src/media_store.dart';
 export 'src/native_event.dart';
 export 'src/notification.dart';
diff --git a/plugin/lib/src/logcat.dart b/plugin/lib/src/logcat.dart
new file mode 100644
index 00000000..2a7a57de
--- /dev/null
+++ b/plugin/lib/src/logcat.dart
@@ -0,0 +1,12 @@
+import 'dart:async';
+
+import 'package:flutter/services.dart';
+import 'package:nc_photos_plugin/src/k.dart' as k;
+
+class Logcat {
+  static Future<String> dump() async {
+    return await _methodChannel.invokeMethod("dump");
+  }
+
+  static const _methodChannel = MethodChannel("${k.libId}/logcat_method");
+}