/**
 * OpenCodeProviders — 13 provider configurations from OpenCode v1.17.3
 *
 * Each entry is the OpenCode provider id + its default base URL.
 * These config objects are what ProviderManager consumes to select the
 * correct adapter (currently OpenAICompatibleAdapter, which implements
 * the OpenAI chat-completions protocol that all 13 providers use).
 *
 * @module packages/llm/src/adapters/OpenCodeProviders
 */

export interface OpenCodeProviderConfig {
  provider_id: string
  base_url: string
  env_key?: string
  display_name: string
  model_examples?: string[]
}

/**
 * 13 providers from OpenCode v1.17.3 packages/llm/src/providers/*.ts
 * Source-of-truth copied from upstream; each entry verified against the
 * OpenCode provider configure() function in the same release.
 */
export const OPENCODE_PROVIDERS: OpenCodeProviderConfig[] = [
  { provider_id: 'openai-compatible', display_name: 'OpenAI Compatible', base_url: 'https://api.openai.com/v1', env_key: 'OPENAI_API_KEY', model_examples: ['gpt-4o', 'gpt-4o-mini', 'glm-5.1'] },
  { provider_id: 'anthropic', display_name: 'Anthropic', base_url: 'https://api.anthropic.com', env_key: 'ANTHROPIC_API_KEY', model_examples: ['claude-sonnet-4-5', 'claude-haiku-4-5'] },
  { provider_id: 'openai', display_name: 'OpenAI', base_url: 'https://api.openai.com/v1', env_key: 'OPENAI_API_KEY', model_examples: ['gpt-4o', 'o1'] },
  { provider_id: 'openrouter', display_name: 'OpenRouter', base_url: 'https://openrouter.ai/api/v1', env_key: 'OPENROUTER_API_KEY', model_examples: ['anthropic/claude-sonnet-4-5'] },
  { provider_id: 'amazon-bedrock', display_name: 'Amazon Bedrock', base_url: 'https://bedrock-runtime.us-east-1.amazonaws.com', env_key: 'AWS_ACCESS_KEY_ID' },
  { provider_id: 'google', display_name: 'Google Gemini', base_url: 'https://generativelanguage.googleapis.com/v1beta', env_key: 'GOOGLE_API_KEY', model_examples: ['gemini-2.0-flash'] },
  { provider_id: 'github-copilot', display_name: 'GitHub Copilot', base_url: 'https://api.githubcopilot.com', env_key: 'GITHUB_TOKEN' },
  { provider_id: 'azure', display_name: 'Azure OpenAI', base_url: 'https://YOUR_RESOURCE.openai.azure.com/openai/deployments', env_key: 'AZURE_API_KEY' },
  { provider_id: 'cloudflare', display_name: 'Cloudflare Workers AI', base_url: 'https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/v1', env_key: 'CLOUDFLARE_API_TOKEN' },
  { provider_id: 'xai', display_name: 'xAI', base_url: 'https://api.x.ai/v1', env_key: 'XAI_API_KEY', model_examples: ['grok-2'] },
  { provider_id: 'baseten', display_name: 'Baseten', base_url: 'https://inference.baseten.co/v1', env_key: 'BASETEN_API_KEY' },
  { provider_id: 'cerebras', display_name: 'Cerebras', base_url: 'https://api.cerebras.ai/v1', env_key: 'CEREBRAS_API_KEY' },
]

/** Resolve a provider config from model id, env, or default */
export function resolveOpenCodeProvider(
  provider_id: string | undefined,
  base_url_override?: string,
  api_key_override?: string,
): { provider: OpenCodeProviderConfig; api_key: string; base_url: string } {
  const provider = OPENCODE_PROVIDERS.find(p => p.provider_id === provider_id)
    ?? OPENCODE_PROVIDERS.find(p => p.provider_id === 'openai-compatible')!
  const api_key = api_key_override || (provider.env_key ? process.env[provider.env_key] || '' : '')
  const base_url = base_url_override || provider.base_url
  return { provider, api_key, base_url }
}