# Changes for Moving Config File to /etc/transmission-rss-manager

## Overview
This update moves the configuration file from the application directory to `/etc/transmission-rss-manager/config.json` for better system organization, while maintaining backward compatibility by checking the original location as a fallback.

## Changes Made

### 1. Server.js Updates
- Changed default config location to `/etc/transmission-rss-manager/config.json`
- Added fallback location (`path.join(__dirname, 'config.json')`) for backward compatibility
- Enhanced `loadConfig()` function to try primary location first, then fallback location
- Updated `saveConfig()` function to try saving to primary location first, then fallback
- Added `installPath` property to configuration to store the application installation path for easier updates

### 2. Installer Updates
- Added `CONFIG_DIR="/etc/transmission-rss-manager"` variable to config-module.sh
- Updated `create_directories()` in dependencies-module.sh to create the config directory
- Updated permission settings to ensure proper access to config directory
- Added checks for the CONFIG_DIR variable to ensure it's set
- Modified service-setup-module.sh to include CONFIG_DIR in the environment variables for the systemd service
- Updated file-creator-module.sh to write the initial config.json to the new location

### 3. Documentation Updates
- Updated README.md to reflect new config file location
- Added entry to the changelog for version 2.0.3
- Updated code examples in README
- Bumped version from 2.0.2 to 2.0.3 in both README.md and package.json

## Technical Details

### Config File Loading Process
1. Try to load config from primary location (`/etc/transmission-rss-manager/config.json`)
2. If not found, try fallback location (`<install_dir>/config.json`)
3. If neither exists, create a new config file at primary location
4. If primary location is not writable, fall back to application directory

### Configuration Storage Logic
- Primary storage location: `/etc/transmission-rss-manager/config.json`
- Fallback location: `<install_dir>/config.json`
- Automatic migration from fallback to primary when possible
- Always try to write to primary first, then fallback if needed

## Benefits
- More standard Linux configuration location in /etc
- Easier to find and edit configuration
- Clear separation between code and configuration
- Maintains backward compatibility with existing installations
- Simplified update process by storing installation path