# VIPR Framework - CLI Installation

This guide covers installing VIPR Core and plugins for command-line usage.

## Table of Contents
1. [Prerequisites](#prerequisites)
2. [Installation](#installation)
3. [Environment Setup](#environment-setup)
4. [Verify Installation](#verify-installation)
5. [Quick Start Example](#quick-start-example)

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## Prerequisites

- **Python**: 3.10 or higher

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## Installation

### VIPR Core + Reflectometry Plugin

```bash
# Create virtual environment
python3.10 -m venv myenv
source myenv/bin/activate

# Install VIPR Core
pip install git+https://codebase.helmholtz.cloud/vipr/vipr-core.git

# Install Reflectometry Plugin
pip install git+https://codebase.helmholtz.cloud/vipr/vipr-reflectorch-plugin.git
```

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## Environment Setup

### Optional Variables

```bash
# Reflectorch storage directory (defaults to ${PWD}/storage/reflectorch)
export REFLECTORCH_ROOT_DIR=${PWD}/storage/reflectorch

# HuggingFace cache directory
export HF_HOME=${PWD}/storage/huggingface_cache

# Device selection (defaults to auto-detect)
export CUDA_VISIBLE_DEVICES=0
```

**Tip:** Add these to your `~/.bashrc` or `~/.zshrc` for permanent setup.

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## Verify Installation

### Check VIPR Version

```bash
vipr --version
```

### List Installed Plugins

```bash
vipr plugins list
```

Expected output should include:
- `reflectometry` (if installed)
- Other installed plugins

### Test Registry

```bash
# List all registered components
vipr discovery components

# List available predictors
vipr discovery predictors
```

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## Quick Start Example

### Run Example Prediction

Prediction for PTCDI-C3 (config from [reflectorch examples](https://codebase.helmholtz.cloud/vipr/vipr-reflectorch-plugin/-/blob/master/vipr_reflectometry/reflectorch/examples/configs/PTCDI-C3.yaml)):

```bash
vipr --config @vipr_reflectometry/reflectorch/examples/configs/PTCDI-C3.yaml inference run
```

### Test with Custom Config

```bash
# Using relative path (from current working directory)
vipr --config ./my-config.yaml inference run

# Using absolute path
vipr --config /path/to/config.yaml inference run
```

**Note:** To use your own experimental data file, set the `data_path` value in the `load_data` section to the relative path of your data file (relative to PWD).

### Check Results

```bash
# Results are typically stored in the storage directory
ls storage/results/
```

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