/**
 * Provider configurations for @geepers/chat
 *
 * Model names match what the API Gateway (api-gateway/app.py) expects.
 * Sourced from Slate's MODELS constant and verified against the gateway.
 */

import type { Provider, ProviderConfig } from '../types/index.js';

export const MODELS: Record<Provider, ProviderConfig> = {
  xai: {
    model: 'grok-4',
    label: 'xAI Grok 4',
  },
  anthropic: {
    model: 'claude-sonnet-4-6',
    label: 'Claude Sonnet 4.6',
  },
  openai: {
    model: 'gpt-5.4',
    label: 'OpenAI GPT-5.4',
  },
  cohere: {
    model: 'command-r-plus-08-2024',
    label: 'Cohere Command R+',
  },
  mistral: {
    model: 'mistral-large-latest',
    label: 'Mistral Large',
  },
  perplexity: {
    model: 'sonar-pro',
    label: 'Perplexity Sonar Pro',
  },
  huggingface: {
    model: 'Qwen/Qwen3.5-9B',
    label: 'HuggingFace Qwen 3.5',
  },
  gemini: {
    model: 'gemini-2.5-flash',
    label: 'Google Gemini 2.5',
  },
  ollama: {
    model: 'llama3.2:3b',
    label: 'Ollama (Local)',
  },
};

/** Array of all valid provider keys, useful for validation and UI rendering */
export const PROVIDER_KEYS: Provider[] = Object.keys(MODELS) as Provider[];

/**
 * Validate that a string is a known provider key.
 * Logs a console warning for unknown providers but does not throw.
 */
export function isKnownProvider(value: string): value is Provider {
  const known = PROVIDER_KEYS.includes(value as Provider);
  if (!known) {
    console.warn(`[@geepers/chat] Unknown provider: "${value}". Known providers: ${PROVIDER_KEYS.join(', ')}`);
  }
  return known;
}

/**
 * Get the model config for a provider, falling back to xai if unknown.
 */
export function getProviderConfig(provider: string): ProviderConfig {
  if (isKnownProvider(provider)) {
    return MODELS[provider];
  }
  return MODELS.xai;
}