constants.ts

/**
 * Constants used for Antigravity OAuth flows and Cloud Code Assist API integration.
 */
export const ANTIGRAVITY_CLIENT_ID = "1071006060591-tmhssin2h21lcre235vtolojh4g403ep.apps.googleusercontent.com";

/**
 * Client secret issued for the Antigravity OAuth application.
 */
export const ANTIGRAVITY_CLIENT_SECRET = "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";

/**
 * Scopes required for Antigravity integrations.
 */
export const ANTIGRAVITY_SCOPES: readonly string[] = [
  "https://www.googleapis.com/auth/cloud-platform",
  "https://www.googleapis.com/auth/userinfo.email",
  "https://www.googleapis.com/auth/userinfo.profile",
  "https://www.googleapis.com/auth/cclog",
  "https://www.googleapis.com/auth/experimentsandconfigs",
];

/**
 * OAuth redirect URI used by the local CLI callback server.
 */
export const ANTIGRAVITY_REDIRECT_URI = "http://localhost:51121/oauth-callback";

/**
 * Root endpoints for the Antigravity API (in fallback order).
 * CLIProxy and Vibeproxy use the daily sandbox endpoint first,
 * then fallback to autopush and prod if needed.
 */
export const ANTIGRAVITY_ENDPOINT_DAILY = "https://daily-cloudcode-pa.sandbox.googleapis.com";
export const ANTIGRAVITY_ENDPOINT_AUTOPUSH = "https://autopush-cloudcode-pa.sandbox.googleapis.com";
export const ANTIGRAVITY_ENDPOINT_PROD = "https://cloudcode-pa.googleapis.com";

/**
 * Endpoint fallback order (daily → autopush → prod).
 * Shared across request handling and project discovery to mirror CLIProxy behavior.
 */
export const ANTIGRAVITY_ENDPOINT_FALLBACKS = [
  ANTIGRAVITY_ENDPOINT_DAILY,
  ANTIGRAVITY_ENDPOINT_AUTOPUSH,
  ANTIGRAVITY_ENDPOINT_PROD,
] as const;

/**
 * Preferred endpoint order for project discovery (prod first, then fallbacks).
 * loadCodeAssist appears to be best supported on prod for managed project resolution.
 */
export const ANTIGRAVITY_LOAD_ENDPOINTS = [
  ANTIGRAVITY_ENDPOINT_PROD,
  ANTIGRAVITY_ENDPOINT_DAILY,
  ANTIGRAVITY_ENDPOINT_AUTOPUSH,
] as const;

/**
 * Primary endpoint to use (daily sandbox - same as CLIProxy/Vibeproxy).
 */
export const ANTIGRAVITY_ENDPOINT = ANTIGRAVITY_ENDPOINT_DAILY;

/**
 * Gemini CLI endpoint (production).
 * Used for models without :antigravity suffix.
 * Same as opencode-gemini-auth's GEMINI_CODE_ASSIST_ENDPOINT.
 */
export const GEMINI_CLI_ENDPOINT = ANTIGRAVITY_ENDPOINT_PROD;

/**
 * Hardcoded project id used when Antigravity does not return one (e.g., business/workspace accounts).
 */
export const ANTIGRAVITY_DEFAULT_PROJECT_ID = "rising-fact-p41fc";

export const ANTIGRAVITY_HEADERS = {
  "User-Agent": "antigravity/1.11.5 windows/amd64",
  "X-Goog-Api-Client": "google-cloud-sdk vscode_cloudshelleditor/0.1",
  "Client-Metadata": '{"ideType":"IDE_UNSPECIFIED","platform":"PLATFORM_UNSPECIFIED","pluginType":"GEMINI"}',
} as const;

export const GEMINI_CLI_HEADERS = {
  "User-Agent": "google-api-nodejs-client/9.15.1",
  "X-Goog-Api-Client": "gl-node/22.17.0",
  "Client-Metadata": "ideType=IDE_UNSPECIFIED,platform=PLATFORM_UNSPECIFIED,pluginType=GEMINI",
} as const;

export type HeaderStyle = "antigravity" | "gemini-cli";

/**
 * Provider identifier shared between the plugin loader and credential store.
 */
export const ANTIGRAVITY_PROVIDER_ID = "google";

/**
 * Whether to preserve thinking blocks for Claude models.
 * 
 * This value is now controlled via config (see plugin/config/schema.ts).
 * The default is false for reliability. Set to true via:
 * - Config file: { "keep_thinking": true }
 * - Env var: OPENCODE_ANTIGRAVITY_KEEP_THINKING=1
 * 
 * @deprecated Use config.keep_thinking from loadConfig() instead.
 *             This export is kept for backward compatibility but reads from env.
 */
export const KEEP_THINKING_BLOCKS =
  process.env.OPENCODE_ANTIGRAVITY_KEEP_THINKING === "1" ||
  process.env.OPENCODE_ANTIGRAVITY_KEEP_THINKING === "true";

// ============================================================================
// TOOL HALLUCINATION PREVENTION (Ported from LLM-API-Key-Proxy)
// ============================================================================

/**
 * System instruction for Claude tool usage hardening.
 * Prevents hallucinated parameters by explicitly stating the rules.
 * 
 * This is injected when tools are present to reduce cases where Claude
 * uses parameter names from its training data instead of the actual schema.
 */
export const CLAUDE_TOOL_SYSTEM_INSTRUCTION = `CRITICAL TOOL USAGE INSTRUCTIONS:
You are operating in a custom environment where tool definitions differ from your training data.
You MUST follow these rules strictly:

1. DO NOT use your internal training data to guess tool parameters
2. ONLY use the exact parameter structure defined in the tool schema
3. Parameter names in schemas are EXACT - do not substitute with similar names from your training
4. Array parameters have specific item types - check the schema's 'items' field for the exact structure
5. When you see "STRICT PARAMETERS" in a tool description, those type definitions override any assumptions
6. Tool use in agentic workflows is REQUIRED - you must call tools with the exact parameters specified

If you are unsure about a tool's parameters, YOU MUST read the schema definition carefully.`;

/**
 * Template for parameter signature injection into tool descriptions.
 * {params} will be replaced with the actual parameter list.
 */
export const CLAUDE_DESCRIPTION_PROMPT = "\n\n⚠️ STRICT PARAMETERS: {params}.";

export const EMPTY_SCHEMA_PLACEHOLDER_NAME = "_placeholder";
export const EMPTY_SCHEMA_PLACEHOLDER_DESCRIPTION = "Placeholder. Always pass true.";