/**
 * Configuration constants for the OpenCode and Command Code providers.
 *
 * All URLs, env-var names, and auth-file paths live here so the catalog,
 * auth, and stream modules share a single source of truth.
 */

import { getAgentDir } from "@earendil-works/pi-coding-agent"
import { join } from "node:path"

// ---------------------------------------------------------------------------
// OpenCode Zen (public catalog tier)
// ---------------------------------------------------------------------------

/**
 * Zen base for OpenAI / Google transports. The SDKs append their own path:
 *   - OpenAI Responses:    {base}/responses
 *   - OpenAI Completions:  {base}/chat/completions
 *   - Google:              {base}/models/{id}:generateContent
 */
export const ZEN_BASE = "https://opencode.ai/zen/v1"

/**
 * Zen base for the Anthropic transport. The Anthropic SDK appends
 * `/v1/messages`, so the base must OMIT the trailing `/v1`.
 */
export const ZEN_ANTHROPIC_BASE = "https://opencode.ai/zen"

/** Live model-list endpoint (Zen advertises its full catalog here). */
export const ZEN_MODELS_URL = "https://opencode.ai/zen/v1/models"

// ---------------------------------------------------------------------------
// OpenCode Go (static tier)
// ---------------------------------------------------------------------------

/** Go base for OpenAI / Google transports. */
export const GO_BASE = "https://opencode.ai/zen/go/v1"

/** Go base for the Anthropic transport (Anthropic SDK appends `/v1/messages`). */
export const GO_ANTHROPIC_BASE = "https://opencode.ai/zen/go"

/** Go model-list endpoint (used for the live catalog refresh). */
export const GO_MODELS_URL = "https://opencode.ai/zen/go/v1/models"

// ---------------------------------------------------------------------------
// Command Code
// ---------------------------------------------------------------------------

export const CC_BASE = "https://api.commandcode.ai"

// ---------------------------------------------------------------------------
// Factory Droid
// ---------------------------------------------------------------------------

export const FACTORY_DROID_BASE = "https://api.factory.ai"

export const FACTORY_DROID_API_PREFIX = "/api/v0"

// ---------------------------------------------------------------------------
// Environment variable names
// ---------------------------------------------------------------------------

/** OpenCode API key env var (works for both Zen and Go tiers). */
export const OPENCODE_API_KEY_ENV = "OPENCODE_API_KEY"

/** Command Code API key env var. */
export const COMMANDCODE_API_KEY_ENV = "COMMANDCODE_API_KEY"

/** Factory Droid API key env var (keys have an `fk-` prefix). */
export const FACTORY_API_KEY_ENV = "FACTORY_API_KEY"

/**
 * Auth-file location. pi stores provider credentials under the agent dir.
 * OpenCode keys may live as `{ "opencode": "<key>" }` or
 * `{ "openCodeApiKey": "<key>" }`.
 */
export const AUTH_FILE_PATH = join(getAgentDir(), "auth.json")

/**
 * If a host passes the literal string "$OPENCODE_API_KEY" (or any value
 * starting with "$") as the resolved key, treat it as "not set" rather than
 * sending the placeholder upstream.
 */
export const ENV_LITERAL_PREFIX = "$"