openclaw-matrix-multiaccounts/src/agents/models-config.ts

import fs from "node:fs/promises";
import path from "node:path";

import { type ClawdbotConfig, loadConfig } from "../config/config.js";
import {
  DEFAULT_COPILOT_API_BASE_URL,
  resolveCopilotApiToken,
} from "../providers/github-copilot-token.js";
import { resolveClawdbotAgentDir } from "./agent-paths.js";
import {
  ensureAuthProfileStore,
  listProfilesForProvider,
} from "./auth-profiles.js";
import { resolveEnvApiKey } from "./model-auth.js";

type ModelsConfig = NonNullable<ClawdbotConfig["models"]>;
type ProviderConfig = NonNullable<ModelsConfig["providers"]>[string];

const DEFAULT_MODE: NonNullable<ModelsConfig["mode"]> = "merge";
const MINIMAX_API_BASE_URL = "https://api.minimax.io/anthropic";
const MINIMAX_DEFAULT_MODEL_ID = "MiniMax-M2.1";
const MINIMAX_DEFAULT_CONTEXT_WINDOW = 200000;
const MINIMAX_DEFAULT_MAX_TOKENS = 8192;
// Pricing: MiniMax doesn't publish public rates. Override in models.json for accurate costs.
const MINIMAX_API_COST = {
  input: 15,
  output: 60,
  cacheRead: 2,
  cacheWrite: 10,
};

function isRecord(value: unknown): value is Record<string, unknown> {
  return Boolean(value && typeof value === "object" && !Array.isArray(value));
}

function normalizeGoogleModelId(id: string): string {
  if (id === "gemini-3-pro") return "gemini-3-pro-preview";
  if (id === "gemini-3-flash") return "gemini-3-flash-preview";
  return id;
}

function normalizeGoogleProvider(provider: ProviderConfig): ProviderConfig {
  let mutated = false;
  const models = provider.models.map((model) => {
    const nextId = normalizeGoogleModelId(model.id);
    if (nextId === model.id) return model;
    mutated = true;
    return { ...model, id: nextId };
  });
  return mutated ? { ...provider, models } : provider;
}

function normalizeProviders(
  providers: ModelsConfig["providers"],
): ModelsConfig["providers"] {
  if (!providers) return providers;
  let mutated = false;
  const next: Record<string, ProviderConfig> = {};
  for (const [key, provider] of Object.entries(providers)) {
    const normalized =
      key === "google" ? normalizeGoogleProvider(provider) : provider;
    if (normalized !== provider) mutated = true;
    next[key] = normalized;
  }
  return mutated ? next : providers;
}

async function readJson(pathname: string): Promise<unknown> {
  try {
    const raw = await fs.readFile(pathname, "utf8");
    return JSON.parse(raw) as unknown;
  } catch {
    return null;
  }
}

function buildMinimaxApiProvider(): ProviderConfig {
  return {
    baseUrl: MINIMAX_API_BASE_URL,
    api: "anthropic-messages",
    models: [
      {
        id: MINIMAX_DEFAULT_MODEL_ID,
        name: "MiniMax M2.1",
        reasoning: false,
        input: ["text"],
        cost: MINIMAX_API_COST,
        contextWindow: MINIMAX_DEFAULT_CONTEXT_WINDOW,
        maxTokens: MINIMAX_DEFAULT_MAX_TOKENS,
      },
    ],
  };
}

function resolveImplicitProviders(params: {
  cfg: ClawdbotConfig;
  agentDir: string;
}): ModelsConfig["providers"] {
  const providers: Record<string, ProviderConfig> = {};
  const minimaxEnv = resolveEnvApiKey("minimax");
  const authStore = ensureAuthProfileStore(params.agentDir);
  const hasMinimaxProfile =
    listProfilesForProvider(authStore, "minimax").length > 0;
  if (minimaxEnv || hasMinimaxProfile) {
    providers.minimax = buildMinimaxApiProvider();
  }
  return providers;
}

async function maybeBuildCopilotProvider(params: {
  agentDir: string;
  env?: NodeJS.ProcessEnv;
}): Promise<ProviderConfig | null> {
  const env = params.env ?? process.env;
  const authStore = ensureAuthProfileStore(params.agentDir);
  const hasProfile =
    listProfilesForProvider(authStore, "github-copilot").length > 0;
  const envToken = env.COPILOT_GITHUB_TOKEN ?? env.GH_TOKEN ?? env.GITHUB_TOKEN;
  const githubToken = (envToken ?? "").trim();

  if (!hasProfile && !githubToken) return null;

  let selectedGithubToken = githubToken;
  if (!selectedGithubToken && hasProfile) {
    // Use the first available profile as a default for discovery (it will be
    // re-resolved per-run by the embedded runner).
    const profileId = listProfilesForProvider(authStore, "github-copilot")[0];
    const profile = profileId ? authStore.profiles[profileId] : undefined;
    if (profile && profile.type === "token") {
      selectedGithubToken = profile.token;
    }
  }

  let baseUrl = DEFAULT_COPILOT_API_BASE_URL;
  if (selectedGithubToken) {
    try {
      const token = await resolveCopilotApiToken({
        githubToken: selectedGithubToken,
        env,
      });
      baseUrl = token.baseUrl;
    } catch {
      baseUrl = DEFAULT_COPILOT_API_BASE_URL;
    }
  }

  // pi-coding-agent's ModelRegistry marks a model "available" only if its
  // `AuthStorage` has auth configured for that provider (via auth.json/env/etc).
  // Our Copilot auth lives in Clawdbot's auth-profiles store instead, so we also
  // write a runtime-only auth.json entry for pi-coding-agent to pick up.
  //
  // This is safe because it's (1) within Clawdbot's agent dir, (2) contains the
  // GitHub token (not the exchanged Copilot token), and (3) matches existing
  // patterns for OAuth-like providers in pi-coding-agent.
  // Note: we deliberately do not write pi-coding-agent's `auth.json` here.
  // Clawdbot uses its own auth store and exchanges tokens at runtime.
  // `models list` uses Clawdbot's auth heuristics for availability.

  // We intentionally do NOT define custom models for Copilot in models.json.
  // pi-coding-agent treats providers with models as replacements requiring apiKey.
  // We only override baseUrl; the model list comes from pi-ai built-ins.
  return {
    baseUrl,
    models: [],
  } satisfies ProviderConfig;
}

export async function ensureClawdbotModelsJson(
  config?: ClawdbotConfig,
  agentDirOverride?: string,
): Promise<{ agentDir: string; wrote: boolean }> {
  const cfg = config ?? loadConfig();
  const agentDir = agentDirOverride?.trim()
    ? agentDirOverride.trim()
    : resolveClawdbotAgentDir();

  const explicitProviders = cfg.models?.providers ?? {};
  const implicitProviders = resolveImplicitProviders({ cfg, agentDir });
  const providers: Record<string, ProviderConfig> = {
    ...implicitProviders,
    ...explicitProviders,
  };
  const implicitCopilot = await maybeBuildCopilotProvider({ agentDir });
  if (implicitCopilot && !providers["github-copilot"]) {
    providers["github-copilot"] = implicitCopilot;
  }

  if (Object.keys(providers).length === 0) {
    return { agentDir, wrote: false };
  }

  const mode = cfg.models?.mode ?? DEFAULT_MODE;
  const targetPath = path.join(agentDir, "models.json");

  let mergedProviders = providers;
  let existingRaw = "";
  if (mode === "merge") {
    const existing = await readJson(targetPath);
    if (isRecord(existing) && isRecord(existing.providers)) {
      const existingProviders = existing.providers as Record<
        string,
        NonNullable<ModelsConfig["providers"]>[string]
      >;
      mergedProviders = { ...existingProviders, ...providers };
    }
  }

  const normalizedProviders = normalizeProviders(mergedProviders);
  const next = `${JSON.stringify({ providers: normalizedProviders }, null, 2)}\n`;
  try {
    existingRaw = await fs.readFile(targetPath, "utf8");
  } catch {
    existingRaw = "";
  }

  if (existingRaw === next) {
    return { agentDir, wrote: false };
  }

  await fs.mkdir(agentDir, { recursive: true, mode: 0o700 });
  await fs.writeFile(targetPath, next, { mode: 0o600 });
  return { agentDir, wrote: true };
}