From b908911417aecb847a9f493b063852a8939a9140 Mon Sep 17 00:00:00 2001
From: jscampucci <joris.scampucci@gmail.com>
Date: Fri, 14 Jun 2024 10:41:27 +0200
Subject: [PATCH] [archi] base archi dl

---
 .gitignore                  |   1 +
 .vscode/launch.json         |  25 ++++++++
 lib/models/Video.dart       |  32 +++++++++++
 lib/services/download.dart  | 112 ++++++++++++++++++++++++++++++++++++
 lib/states/dlFormState.dart |  40 +++----------
 5 files changed, 177 insertions(+), 33 deletions(-)
 create mode 100644 .vscode/launch.json
 create mode 100644 lib/models/Video.dart
 create mode 100644 lib/services/download.dart

diff --git a/.gitignore b/.gitignore
index 29a3a50..6b48af0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,6 +30,7 @@ migrate_working_dir/
 .pub-cache/
 .pub/
 /build/
+temp/
 
 # Symbolication related
 app.*.symbols
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..31032cd
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,25 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "notube",
+      "request": "launch",
+      "type": "dart"
+    },
+    {
+      "name": "notube (profile mode)",
+      "request": "launch",
+      "type": "dart",
+      "flutterMode": "profile"
+    },
+    {
+      "name": "notube (release mode)",
+      "request": "launch",
+      "type": "dart",
+      "flutterMode": "release"
+    }
+  ]
+}
diff --git a/lib/models/Video.dart b/lib/models/Video.dart
new file mode 100644
index 0000000..a4fe910
--- /dev/null
+++ b/lib/models/Video.dart
@@ -0,0 +1,32 @@
+import 'dart:developer' as developer;
+
+class Video {
+  String id;
+  String title;
+  String thumbnail;
+  String description;
+  String duration;
+  String uploader;
+  String uploadDate;
+
+  Video({
+    required this.id,
+    required this.title,
+    this.thumbnail = '',
+    this.description = '',
+    this.duration = '0:00',
+    required this.uploader,
+    required this.uploadDate,
+  });
+
+  factory Video.fromJson(Map<String, dynamic> json) {
+    return Video(
+        id: json['id'],
+        title: json['title'],
+        thumbnail: json['thumbnails']![0]['url'],
+        description: json['description'] ?? '',
+        duration: json['duration_string'] ?? '0:00',
+        uploader: json['uploader'] ?? '',
+        uploadDate: json['upload_date'] ?? '');
+  }
+}
diff --git a/lib/services/download.dart b/lib/services/download.dart
new file mode 100644
index 0000000..6f9a0a7
--- /dev/null
+++ b/lib/services/download.dart
@@ -0,0 +1,112 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:notube/models/Video.dart';
+import 'package:notube/states/dlFormState.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:process_run/shell.dart';
+import 'package:provider/provider.dart';
+
+import 'dart:developer';
+
+class DLServices {
+  late Directory tempDir;
+  late String assetName;
+  late String ytDlpPath;
+
+  String extractor = '';
+  String url = '';
+
+  bool isPlaylist = false;
+  String playlistTitle = '';
+
+  List<Video> videos = [];
+
+  DLServices._();
+
+  static Future<DLServices> init() async {
+    debugPrint('Initializing DLServices');
+    var dlService = DLServices._();
+    await dlService._init();
+    return dlService;
+  }
+
+  Future<void> _init() async {
+    tempDir = await getTemporaryDirectory();
+    assetName = 'yt-dlp.exe';
+    await copyExecutable();
+  }
+
+  Future<void> copyExecutable() async {
+    File tempFile = File('${tempDir.path}/$assetName');
+
+    ByteData data = await rootBundle.load('assets/executable/$assetName');
+    await tempFile.exists().then((value) {
+      if (!value) {
+        debugPrint('Copying $assetName to ${tempFile.path}');
+        tempFile.writeAsBytes(
+            data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes));
+      }
+    });
+
+    ytDlpPath = tempFile.path;
+  }
+
+  Future<void> downloadFile(String url, String format) async {
+    debugPrint('Downloading $url in $format format');
+
+    /*
+    https://youtu.be/playlist?list=PLk1fi9OrZmvGBdh9BdWIhZImGVDUqls1X
+    */
+    var command =
+        '${url.trim()}  --sub-langs "all,-live_chat" --embed-subs --embed-thumbnail --embed-metadata --windows-filenames --progress -o "temp/%(playlist)s/%(title)s"';
+
+    var shellLinesController = ShellLinesController();
+    var shell = Shell(stdout: shellLinesController.sink);
+
+    shellLinesController.stream.listen((line) {
+      if (line.contains('[download]')) {
+        debugPrint('___Download___');
+        debugPrint('%=${line.split('[download]')[1].split(' of')[0].trim()}');
+        debugPrint('______');
+      }
+      debugPrint(line);
+    });
+
+    debugPrint('Running $ytDlpPath $command');
+    await shell.run('''
+      $ytDlpPath $command
+    ''');
+  }
+
+  Future<void> analyseUrl(String url) async {
+    debugPrint('Analyse $url');
+
+    var command = '${url.trim()} -q --flat-playlist -J';
+
+    var shellLinesController = ShellLinesController();
+    var shell = Shell(stdout: shellLinesController.sink);
+
+    shellLinesController.stream.listen((line) {
+      if (line[0] == '{') {
+        var dataInfos = jsonDecode(line);
+        extractor = dataInfos['extractor_key'];
+        isPlaylist = dataInfos['_type'] == 'playlist';
+        if (isPlaylist) {
+          playlistTitle = dataInfos['title'];
+          for (var video in dataInfos['entries']) {
+            videos.add(Video.fromJson(video));
+          }
+        } else {
+          videos.add(Video.fromJson(dataInfos));
+        }
+      }
+    });
+
+    await shell.run('''
+      $ytDlpPath $command
+    ''');
+  }
+}
diff --git a/lib/states/dlFormState.dart b/lib/states/dlFormState.dart
index 7a78e39..882d463 100644
--- a/lib/states/dlFormState.dart
+++ b/lib/states/dlFormState.dart
@@ -1,14 +1,13 @@
-import 'dart:io';
-
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
-import 'package:path_provider/path_provider.dart';
-import 'package:process_run/shell.dart';
+import 'package:notube/services/download.dart';
 
 class DlFormState extends ChangeNotifier {
-  String url = '';
+  String url =
+      'https://youtu.be/playlist?list=PLk1fi9OrZmvGBdh9BdWIhZImGVDUqls1X';
   String format = 'MP3';
 
+  late DLServices dlService;
+
   void setUrl(String newUrl) {
     url = newUrl;
     notifyListeners();
@@ -20,32 +19,7 @@ class DlFormState extends ChangeNotifier {
   }
 
   Future<void> download() async {
-    debugPrint('Downloading $url in $format format');
-
-    Directory tempDir = await getTemporaryDirectory();
-
-    String assetName = 'yt-dlp.exe';
-
-    File tempFile = File('${tempDir.path}/$assetName');
-
-    ByteData data = await rootBundle.load('assets/executable/$assetName');
-    await tempFile.exists().then((value) {
-      if (!value) {
-        debugPrint('Copying $assetName to ${tempFile.path}');
-        tempFile.writeAsBytes(
-            data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes));
-      }
-    });
-
-    var ytDlpPath = tempFile.path;
-    var command =
-        '${url.trim()} --sub-langs "all,-live_chat" --embed-subs --embed-thumbnail --embed-metadata --output temp.mp4';
-    var shell = Shell();
-
-    debugPrint('Running $ytDlpPath $command');
-    var results = await shell.run('''
-      dir
-      $ytDlpPath $command
-    ''');
+    dlService = await DLServices.init();
+    await dlService.analyseUrl(url);
   }
 }