# Latest Updates - November 29, 2025

## Summary

This session focused on three major improvements to VideoTools:

1. **Auto-Resolution for DVD Formats** - Automatically sets correct resolution when selecting NTSC/PAL
2. **Queue System Improvements** - Better thread-safety and new control features
3. **Professional Installation System** - One-command setup for users

---

## 1. Auto-Resolution for DVD Formats

### What Changed

When you select a DVD format in the Convert module, the resolution and framerate now **automatically set** to match the standard:

- **Select "DVD-NTSC (MPEG-2)"** → automatically sets resolution to **720×480** and framerate to **30fps**
- **Select "DVD-PAL (MPEG-2)"** → automatically sets resolution to **720×576** and framerate to **25fps**

### Why It Matters

- **No More Manual Setting** - Users don't need to understand DVD resolution specs
- **Fewer Mistakes** - Prevents encoding to wrong resolution
- **Faster Workflow** - One click instead of three
- **Professional Output** - Ensures standards compliance

### How to Use

1. Go to Convert module
2. Load a video
3. Select a DVD format → resolution/framerate auto-set!
4. In Advanced Mode, you'll see the options pre-filled correctly

### Technical Details

**File:** `main.go` lines 1416-1643
- Added DVD resolution options to resolution selector dropdown
- Implemented `updateDVDOptions()` function to handle auto-setting
- Updates both UI state and convert configuration

---

## 2. Queue System Improvements

### New Methods

The queue system now includes several reliability and control improvements:

- **`PauseAll()`** - Pause any running job and stop processing
- **`ResumeAll()`** - Restart queue processing from paused state
- **`MoveUp(id)` / `MoveDown(id)`** - Reorder pending/paused jobs in the queue
- **Better thread-safety** - Improved locking in Add, Remove, Pause, Resume, Cancel operations

### UI Improvements

The queue view now displays:
- **Pause All button** - Quickly pause everything
- **Resume All button** - Restart processing
- **Up/Down arrows** on each job - Reorder items manually
- **Better status tracking** - Improved running/paused/completed indicators

### Why It Matters

- **More Control** - Users can pause/resume/reorder jobs
- **Better Reliability** - Improved thread-safety prevents race conditions
- **Batch Operations** - Control all jobs with single buttons
- **Flexibility** - Reorder jobs without removing them

### File Changes

**File:** `internal/queue/queue.go`
- Fixed mutex locking in critical sections
- Added PauseAll() and ResumeAll() methods
- Added MoveUp/MoveDown methods for reordering
- Improved Copy strategy in List() method
- Better handling of running job cancellation

**File:** `internal/ui/queueview.go`
- Added new control buttons (Pause All, Resume All, Start Queue)
- Added reordering UI (up/down arrows)
- Improved job display and status tracking

---

## 3. Professional Installation System

### New Files

1. **Enhanced `install.sh`** - One-command installation
2. **New `INSTALLATION.md`** - Comprehensive installation guide

### install.sh Features

The installer now performs all setup automatically:

```bash
bash install.sh
```

This handles:
1. ✅ Go installation verification
2. ✅ Building VideoTools from source
3. ✅ Choosing installation path (system-wide or user-local)
4. ✅ Installing binary to proper location
5. ✅ Auto-detecting shell (bash/zsh)
6. ✅ Updating PATH in shell rc file
7. ✅ Sourcing alias.sh for convenience commands
8. ✅ Providing next-steps instructions

### Installation Options

**Option 1: System-Wide (for shared computers)**
```bash
bash install.sh
# Select option 1 when prompted
```

**Option 2: User-Local (default, no sudo required)**
```bash
bash install.sh
# Select option 2 when prompted (or just press Enter)
```

### After Installation

```bash
source ~/.bashrc    # Load the new aliases
VideoTools          # Run the application
```

### Available Commands

After installation:
- `VideoTools` - Run the application
- `VideoToolsRebuild` - Force rebuild from source
- `VideoToolsClean` - Clean build artifacts

### Why It Matters

- **Zero Setup** - No manual shell configuration needed
- **User-Friendly** - Guided choices with sensible defaults
- **Automatic Environment** - PATH and aliases configured automatically
- **Professional Experience** - Matches expectations of modern software

### Documentation

**INSTALLATION.md** includes:
- Quick start instructions
- Multiple installation options
- Troubleshooting section
- Manual installation instructions
- Platform-specific notes
- Uninstallation instructions
- Verification steps

---

## Display Server Auto-Detection

### What Changed

The player controller now auto-detects the display server:

**File:** `internal/player/controller_linux.go`
- Checks for Wayland environment variable
- Uses Wayland if available, falls back to X11
- Conditional xdotool window placement (X11 only)

### Why It Matters

- **Works with Wayland** - Modern display server support
- **Backwards Compatible** - Still works with X11
- **No Configuration** - Auto-detects automatically

---

## Files Modified in This Session

### Major Changes
1. **main.go** - Auto-resolution for DVD formats (~50 lines added)
2. **install.sh** - Complete rewrite for professional setup (~150 lines)
3. **INSTALLATION.md** - New comprehensive guide (~280 lines)
4. **README.md** - Updated Quick Start section

### Queue System
5. **internal/queue/queue.go** - Thread-safety and new methods (~100 lines)
6. **internal/ui/queueview.go** - New UI controls (~60 lines)
7. **internal/ui/mainmenu.go** - Updated queue display
8. **internal/player/controller_linux.go** - Display server detection

---

## Git Commits

Two commits were created in this session:

### Commit 1: Auto-Resolution and Queue Improvements
```
Improve queue system reliability and add auto-resolution for DVD formats
- Auto-set resolution to 720×480 when NTSC DVD format selected
- Auto-set resolution to 720×576 when PAL DVD format selected
- Improved thread-safety in queue system
- Added PauseAll, ResumeAll, MoveUp, MoveDown queue methods
- Display server auto-detection (Wayland vs X11)
```

### Commit 2: Installation System
```
Add comprehensive installation system with install.sh and INSTALLATION.md
- 5-step installation wizard with visual progress indicators
- Auto-detects bash/zsh shell and updates rc files
- Automatically adds PATH exports
- Automatically sources alias.sh
- Comprehensive installation guide documentation
- Default to user-local installation (no sudo required)
```

---

## What's Ready for Testing

All features are built and ready:

### For Testing Auto-Resolution
1. Run `VideoTools`
2. Go to Convert module
3. Select "DVD-NTSC (MPEG-2)" or "DVD-PAL (MPEG-2)"
4. Check that resolution auto-sets (Advanced Mode)

### For Testing Queue Improvements
1. Add multiple jobs to queue
2. Test Pause All / Resume All buttons
3. Test reordering with up/down arrows

### For Testing Installation
1. Run `bash install.sh` on a clean system
2. Verify binary is in PATH
3. Verify aliases are available

---

## Next Steps

### For Your Testing
1. Test the new auto-resolution feature with NTSC and PAL formats
2. Test queue improvements (Pause All, Resume All, reordering)
3. Test the installation system on a fresh checkout

### For Future Development
1. Implement FFmpeg execution integration (call BuildDVDFFmpegArgs)
2. Display validation warnings in UI before queuing
3. Test with DVDStyler for compatibility verification
4. Test with actual PS2 hardware or emulator

---

## Documentation Updates

All documentation has been updated:

- **README.md** - Updated Quick Start, added INSTALLATION.md reference
- **INSTALLATION.md** - New comprehensive guide (280 lines)
- **BUILD_AND_RUN.md** - Existing user guide (still valid)
- **DVD_USER_GUIDE.md** - Existing user guide (still valid)

---

## Summary of Improvements

| Feature | Before | After |
|---------|--------|-------|
| DVD Resolution Setup | Manual selection | Auto-set on format selection |
| Queue Control | Basic (play/pause) | Advanced (Pause All, Resume All, reorder) |
| Installation | Manual shell config | One-command wizard |
| Alias Setup | Manual sourcing | Automatic in rc file |
| New User Experience | Complex | Simple (5 steps) |

---

## Technical Quality

All changes follow best practices:

- ✅ Proper mutex locking in queue operations
- ✅ Nil checks for function pointers
- ✅ User-friendly error messages
- ✅ Comprehensive documentation
- ✅ Backward compatible
- ✅ No breaking changes

---

Enjoy the improvements! 🎬

