anyway-config-coder

# Anyway Config Coder

Implement type-safe configuration management using the `anyway_config` gem. Never access ENV directly - wrap all configuration in typed classes.

## Core Principle

**Never use ENV directly or Rails credentials.** Create typed configuration classes instead.

```ruby
# WRONG - scattered ENV access
api_key = ENV["GEMINI_API_KEY"]
timeout = ENV.fetch("API_TIMEOUT", 30).to_i

# RIGHT - typed configuration class
class GeminiConfig < Anyway::Config
  attr_config :api_key,
              timeout: 30

  required :api_key
end

# Usage
GeminiConfig.new.api_key
```

## Setup

```ruby
# Gemfile
gem "anyway_config", "~> 2.6"
```

## Configuration Class Structure

### Basic Configuration

```ruby
# config/configs/gemini_config.rb
class GeminiConfig < Anyway::Config
  # Define attributes with defaults
  attr_config :api_key,
              model: "gemini-pro",
              timeout: 30,
              max_retries: 3

  # Mark required attributes
  required :api_key

  # Computed helpers
  def configured?
    api_key.present?
  end

  def base_url
    "https://generativelanguage.googleapis.com/v1beta"
  end
end
```

### Environment Variable Mapping

Anyway Config automatically maps environment variables:

```ruby
class GeminiConfig < Anyway::Config
  attr_config :api_key    # GEMINI_API_KEY
  attr_config :model      # GEMINI_MODEL
  attr_config :timeout    # GEMINI_TIMEOUT
end

# Custom prefix
class StripeConfig < Anyway::Config
  config_name :payment    # Uses PAYMENT_* prefix instead of STRIPE_*

  attr_config :api_key,   # PAYMENT_API_KEY
              :webhook_secret
end
```

### Nested Configuration

```ruby
class AppConfig < Anyway::Config
  attr_config :name,
              :environment,
              database: {
                host: "localhost",
                port: 5432,
                pool: 5
              },
              redis: {
                url: "redis://localhost:6379"
              }
end

# Access nested values
AppConfig.new.database.host
Ap