removed tinyurl logic added support for new short code logic

TASK.md

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+# 📱 Task List for SimpleLogUpload (Android App)
+
+## 🧭 Project Goals
+- Follow **MVC** architectural pattern
+- Allow users to upload files manually or via **Android share intent**
+- Automatically **zip uncompressed files** before upload
+- Show and manage a **local history** of uploaded files
+- Display the **upload code** from server after successful upload
+- Support configuration for:
+    - Max download count
+    - Expiry time (max 24 hours)
+
+---
+
+## 🛠️ Core Features to Implement
+
+### 🔗 Share Integration
+- [ ] Add `<intent-filter>` in `AndroidManifest.xml` for ACTION_SEND and ACTION_SEND_MULTIPLE
+- [ ] Handle incoming shared files in `MainActivity` or a new controller
+- [ ] Automatically start the upload process from shared intent
+
+### 📦 Zip Before Upload
+- [ ] Detect if selected/shared file is already a `.zip`
+- [ ] If not zipped, compress it to `.zip` format
+- [ ] Use the zipped version for upload
+
+### 📜 Upload History
+- [ ] Create a local database or use SharedPreferences to log:
+    - File name
+    - Upload time
+    - Server-returned code
+    - Max downloads & expiry
+- [ ] Add new UI to list previously uploaded files
+- [ ] Allow copy of upload code and option to delete history entry
+
+### ⬆️ Upload Enhancements
+- [x] Replace TinyURL logic with server-provided 6-digit alphanumeric code
+- [x] Display this code to the user after upload
+- [x] Validate file size before upload (max 2GB, increased from 16MB)
+- [x] Add retry logic and better error messages
+
+---
+
+## ✅ Existing Features (Audit)
+- [x] File selection and upload via UI
+- [x] Background upload using JobService
+- [x] Upload progress shown to user
+- [x] Uses SharedPreferences for config
+- [x] HTTP cleartext traffic support for server communication
+- [x] Support for large file uploads (up to 2GB)
+
+---
+
+## 🧪 Testing Scenarios
+- [ ] Manual upload with various file types
+- [ ] Share intent upload flow
+- [ ] Zip logic works on large files
+- [x] Network disruptions (offline/retry handling)
+- [ ] UI responsiveness on phones and tablets
+
+---
+
+## 🧼 Code Quality
+- [x] Ensure MVC separation in all components
+- [ ] Add unit tests for:
+    - Zip utility
+    - Upload manager
+    - History storage
+    - Share intent handler
+- [x] Improve logs for debugging failures
+
+---
+
+## 🚀 Future Ideas
+- [ ] Dark mode UI
+- [ ] Multi-file upload
+- [ ] Upload status notification with retry option