# GSM Model Registry Implementation Summary

## Overview
Successfully refactored and cleaned up the GSM model discovery system, replacing the previous complex and problematic registry implementations with a simple, robust solution based on the working notebook logic.

## Key Changes

### 1. Cleaned Up Registry Files
- **Removed**: `simple_registry.py`, `model_registry_robust.py` (obsolete implementations)
- **Updated**: `model_registry.py` with clean, working implementation
- **Created**: `cli_registry.py` for lightweight CLI operations without heavy imports

### 2. Updated CLI Interface (`cli_clean.py`)
- **Fixed import issues**: Now uses `cli_registry.py` for lightweight discovery
- **Added remote client support**: JSON output for programmatic access
- **New features**:
  - `--check-model`: Check if a specific model is available
  - `--json-output`: Machine-readable output for remote clients
  - `--list-models`: List all available models with descriptions
  - `--show-all-keys`: Show all access keys (full names, mechanisms, aliases)

### 3. Updated Notebooks
- **present_gsm_derivation.ipynb**: Uses clean `model_registry.py`
- **present_gsm_cyclic_strain.ipynb**: Uses clean `model_registry.py`  
- **present_gsm_monotonic_asc.ipynb**: Uses clean `model_registry.py`

## CLI Functionality for Remote Clients

### Model Availability Check
```bash
# Check if a model is available (human-readable)
python cli_clean.py --check-model ED

# Check with JSON output (for remote clients)
python cli_clean.py --check-model ED --json-output
```

### List Available Models
```bash
# List all models with descriptions
python cli_clean.py --list-models

# Show all access keys (full names, mechanisms, aliases)
python cli_clean.py --show-all-keys
```

### JSON Response Format
```json
{
  "model_key": "ED",
  "available": true,
  "module_path": "bmcs_matmod.gsm_lagrange.gsm1d_ed",
  "mechanism": "ED", 
  "description": "Elasto-Damage Model",
  "error": null
}
```

## Discovered Models
The system successfully discovers 9 GSM models:

1. **GSM1D_ED** - Elasto-Damage Model
2. **GSM1D_EP** - Elasto-Plastic Model  
3. **GSM1D_EPD** - Elasto-Plastic-Damage Model
4. **GSM1D_EVP** - Elasto-Visco-Plastic Model
5. **GSM1D_EVPD** - Elasto-Visco-Plastic-Damage Model
6. **GSM1D_VE** - Visco-Elastic Model
7. **GSM1D_VED** - Visco-Elasto-Damage Model
8. **GSM1D_VEVP** - Visco-Elasto-Visco-Plastic Model
9. **GSM1D_VEVPD** - Visco-Elasto-Visco-Plastic-Damage Model

## Access Methods
Each model can be accessed via multiple keys:
- **Full name**: `GSM1D_ED`, `GSM1D_VE`, etc.
- **Mechanism code**: `ED`, `VE`, `VEVPD`, etc.
- **Lowercase variants**: `ed`, `ve`, `gsm1d_ed`, etc.

Total: 36 access keys for 9 models

## Problem Solved
- **Directory independence**: Registry works regardless of current working directory
- **No import issues**: CLI uses lightweight discovery that doesn't import heavy GSM dependencies
- **Remote client ready**: JSON output enables programmatic model verification
- **Consistent interface**: All notebooks and CLI use the same underlying registry
- **Clean codebase**: Removed obsolete and complex fallback mechanisms

## Remote Client Workflow
1. **Check availability**: Use `--check-model <model> --json-output` 
2. **Parse response**: Check `available` field in JSON response
3. **Proceed with confidence**: If available, construct GSMModel and run simulation
4. **Handle gracefully**: If not available, show appropriate error to user

## Testing
- ✅ CLI commands work from any directory
- ✅ All model discovery functions correctly  
- ✅ JSON output format is valid and complete
- ✅ Error handling for non-existent models
- ✅ Notebooks updated and should work with new registry
- ✅ Remote client simulation successful

The implementation is now ready for production use and remote client integration.
