This script is designed for image processing, specifically for merging two images (a base texture and an alpha channel) into a single TGA file with 32-bit color support (including alpha). Below is a breakdown of its functionality:

Main Features of the Script:

1. Creating a unique log file name (`getLogFileName`):
- Generates a log file name based on the current date and time in the format `log_dd.mm.yyyy_hh-mm-ss.txt`, allowing separate logs for each processing session.

2. Loading configuration (`loadConfig`):
- Reads the `script_config.txt` file from a specified folder to determine the index of the last processed file. If the config file is missing, processing starts from the first file.

3. Saving configuration (`saveConfig`):
- Saves the current file index to `script_config.txt`, allowing the script to resume from where it left off.

4. Copying files to the error folder (`copyToErrorFolder`):
- If an error occurs during processing, the files are copied to the `ERROR_FILES` folder with a unique name (a suffix `_001`, `_002`, etc., is added if the name already exists).

5. Image processing (`processImages`):
- The core function opens two files (texture and alpha), checks for the presence of an alpha channel, copies it from the alpha image and inserts it into the texture. The result is saved as a TGA file with alpha support.

6. Saving as TGA (`saveAsTGA`):
- Saves the image as a 32-bit TGA file with an embedded alpha channel.

7. Alpha channel check (`hasAlphaChannel`):
- Checks if the document contains an alpha channel named "Alpha 1".

Script Workflow:
1. User selects a folder containing images.
2. The script searches for `.png` and `.psd` files.
3. Files are processed in pairs: the first file is treated as the texture, the second as the alpha.
4. For each pair:
- Checks for the presence of an alpha channel.
- Alpha channel is copied from the second file into the texture.
- The result is saved in the `output` folder as a TGA file.
5. If an error occurs, files are moved to the `ERROR_FILES` folder, and the error is logged.
6. After processing is complete, the configuration is reset, and the user is notified.

Key Features:
- Logging: All actions are recorded in a log file to track processing and errors.
- Resume Support: Remembers processed files and resumes from where it left off.
- Error Handling: If files are corrupted or problematic, they’re moved to `ERROR_FILES`, and the script continues with the next pair.
- Memory Cleanup: Closes all non-active documents to avoid memory leaks.

This script is useful for automating image processing tasks where texture and alpha need to be combined into one file.

---

Version History: Comparing Version 1.1 with Version 1.0

Changed:
1. Grouping by file names:
- Version 1.1 introduces grouping based on base filenames without extensions, enabling reliable pairing based on name rather than file order.

2. File index tracking:
- Indexing now reflects processed name-pairs instead of individual files, improving logic and progress tracking.

3. Pair existence checks:
- Version 1.1 checks for valid file pairs before processing, unlike 1.0 which could attempt processing unmatched files.

Added:
1. Dialog suppression:
- Added `app.displayDialogs = DialogModes.NO;` to suppress popups, improving automation.

2. File grouping via `fileMap` object:
- A `fileMap` object groups files by base name for easier pairing.

3. Logging missing pairs:
- Logs when a matching pair is not found, helping users identify skipped files.

Fixed:
1. Odd number of files:
- 1.0 could crash if file count was odd. 1.1 handles this using name-based pairing.

2. Error handling improvements:
- Enhanced stability during copy operations and error cases; script continues running after failures.

3. Improved memory cleanup:
- Now closes all non-active documents to prevent memory bloat when processing many files.

Summary:
Version 1.1 is a more robust and user-friendly release, focusing on smarter file pairing, error resilience, and better automation.