// models.js — shared model configuration
// Used by the frontend dropdown AND the backend router.
//
// provider values map to individual AI SDK packages:
//   "anthropic" → @ai-sdk/anthropic  (ANTHROPIC_API_KEY)
//   "openai"    → @ai-sdk/openai     (OPENAI_API_KEY)
//   "google"    → @ai-sdk/google     (GOOGLE_API_KEY)
//   "ollama"    → ollama-ai-provider-v2 (OLLAMA_API_KEY)

export const MODELS = [
  {
    id:       'claude-opus-4-7',
    label:    'Claude Opus 4.7',
    provider: 'anthropic',
    creator:  'Anthropic',
    vision:   true,
  },
  {
    id:       'gpt-4o',
    label:    'ChatGPT 4o',
    provider: 'openai',
    creator:  'OpenAI',
    vision:   true,
  },
  {
    id:       'gpt-5.4',
    label:    'GPT-5.4',
    provider: 'openai',
    creator:  'OpenAI',
    vision:   true,
  },
  {
    id:       'gemini-3-flash-preview',
    label:    'Gemini 3 Flash',
    provider: 'google',
    creator:  'Google',
    vision:   true,
  },
  {
    id:       'gemini-robotics-er-1.6-preview',
    label:    'Gemini Robotics-ER 1.6',
    provider: 'google',
    creator:  'Google DeepMind',
    vision:   true,
  },
  {
    id:       'gemini-3.1-pro-preview',
    label:    'Gemini 3.1 Pro',
    provider: 'google',
    creator:  'Google DeepMind',
    vision:   true,
  },
  {
    id:       'gemma-4-31b-it',
    label:    'Gemma 4 31B IT',
    provider: 'google',
    creator:  'Google DeepMind',
    vision:   true,
  },
  {
    id:       'gemma-4-26b-a4b-it',
    label:    'Gemma 4 26B A4B IT',
    provider: 'google',
    creator:  'Google DeepMind',
    vision:   true,
  },
  {
    id:       'qwen3.5:397b-cloud',
    label:    'Qwen 3.5 397B',
    provider: 'ollama',
    creator:  'Qwen / Ollama Cloud',
    vision:   true,
  },
  {
    id:       'qwen3-vl:235b-cloud',
    label:    'Qwen 3 VL 235B',
    provider: 'ollama',
    creator:  'Qwen / Ollama Cloud',
    vision:   true,
  },
  {
    id:       'kimi-k2.6:cloud',
    label:    'Kimi K2.6',
    provider: 'ollama',
    creator:  'Kimi / Ollama Cloud',
    vision:   true,
  }
];

export const DEFAULT_MODEL_ID = 'qwen3.5:397b-cloud';

export function findModel(id) {
  return MODELS.find(m => m.id === id);
}

export function normalizeModelId(raw) {
  if (!raw) return raw;
  // Allow legacy "provider/model" storage (e.g. "anthropic/claude-sonnet-4.6")
  const noProvider = String(raw).includes('/') ? String(raw).split('/').pop() : String(raw);

  // Allow legacy dotted Claude naming used in early versions of this repo.
  if (noProvider === 'claude-sonnet-4.6') return 'claude-sonnet-4-6';

  return noProvider;
}