"use strict";Object.defineProperty(exports, "__esModule", { value: true });exports.getGitHubCopilotBaseUrl = getGitHubCopilotBaseUrl;exports.githubCopilotOAuthProvider = void 0;exports.loginGitHubCopilot = loginGitHubCopilot;exports.normalizeDomain = normalizeDomain;exports.refreshGitHubCopilotToken = refreshGitHubCopilotToken;


var _models = require("../../models.js"); /**
 * GitHub Copilot OAuth flow
 */const decode = (s) => atob(s);const CLIENT_ID = decode("SXYxLmI1MDdhMDhjODdlY2ZlOTg=");
const COPILOT_HEADERS = {
  "User-Agent": "GitHubCopilotChat/0.35.0",
  "Editor-Version": "vscode/1.107.0",
  "Editor-Plugin-Version": "copilot-chat/0.35.0",
  "Copilot-Integration-Id": "vscode-chat"
};
function normalizeDomain(input) {
  const trimmed = input.trim();
  if (!trimmed)
  return null;
  try {
    const url = trimmed.includes("://") ? new URL(trimmed) : new URL(`https://${trimmed}`);
    return url.hostname;
  }
  catch {
    return null;
  }
}
function getUrls(domain) {
  return {
    deviceCodeUrl: `https://${domain}/login/device/code`,
    accessTokenUrl: `https://${domain}/login/oauth/access_token`,
    copilotTokenUrl: `https://api.${domain}/copilot_internal/v2/token`
  };
}
/**
 * Parse the proxy-ep from a Copilot token and convert to API base URL.
 * Token format: tid=...;exp=...;proxy-ep=proxy.individual.githubcopilot.com;...
 * Returns API URL like https://api.individual.githubcopilot.com
 */
function getBaseUrlFromToken(token) {
  const match = token.match(/proxy-ep=([^;]+)/);
  if (!match)
  return null;
  const proxyHost = match[1];
  // Convert proxy.xxx to api.xxx
  const apiHost = proxyHost.replace(/^proxy\./, "api.");
  return `https://${apiHost}`;
}
function getGitHubCopilotBaseUrl(token, enterpriseDomain) {
  // If we have a token, extract the base URL from proxy-ep
  if (token) {
    const urlFromToken = getBaseUrlFromToken(token);
    if (urlFromToken)
    return urlFromToken;
  }
  // Fallback for enterprise or if token parsing fails
  if (enterpriseDomain)
  return `https://copilot-api.${enterpriseDomain}`;
  return "https://api.individual.githubcopilot.com";
}
async function fetchJson(url, init) {
  const response = await fetch(url, init);
  if (!response.ok) {
    const text = await response.text();
    throw new Error(`${response.status} ${response.statusText}: ${text}`);
  }
  return response.json();
}
async function startDeviceFlow(domain) {
  const urls = getUrls(domain);
  const data = await fetchJson(urls.deviceCodeUrl, {
    method: "POST",
    headers: {
      Accept: "application/json",
      "Content-Type": "application/json",
      "User-Agent": "GitHubCopilotChat/0.35.0"
    },
    body: JSON.stringify({
      client_id: CLIENT_ID,
      scope: "read:user"
    })
  });
  if (!data || typeof data !== "object") {
    throw new Error("Invalid device code response");
  }
  const deviceCode = data.device_code;
  const userCode = data.user_code;
  const verificationUri = data.verification_uri;
  const interval = data.interval;
  const expiresIn = data.expires_in;
  if (typeof deviceCode !== "string" ||
  typeof userCode !== "string" ||
  typeof verificationUri !== "string" ||
  typeof interval !== "number" ||
  typeof expiresIn !== "number") {
    throw new Error("Invalid device code response fields");
  }
  return {
    device_code: deviceCode,
    user_code: userCode,
    verification_uri: verificationUri,
    interval,
    expires_in: expiresIn
  };
}
/**
 * Sleep that can be interrupted by an AbortSignal
 */
function abortableSleep(ms, signal) {
  return new Promise((resolve, reject) => {
    if (signal?.aborted) {
      reject(new Error("Login cancelled"));
      return;
    }
    const timeout = setTimeout(resolve, ms);
    signal?.addEventListener("abort", () => {
      clearTimeout(timeout);
      reject(new Error("Login cancelled"));
    }, { once: true });
  });
}
async function pollForGitHubAccessToken(domain, deviceCode, intervalSeconds, expiresIn, signal) {
  const urls = getUrls(domain);
  const deadline = Date.now() + expiresIn * 1000;
  let intervalMs = Math.max(1000, Math.floor(intervalSeconds * 1000));
  while (Date.now() < deadline) {
    if (signal?.aborted) {
      throw new Error("Login cancelled");
    }
    const raw = await fetchJson(urls.accessTokenUrl, {
      method: "POST",
      headers: {
        Accept: "application/json",
        "Content-Type": "application/json",
        "User-Agent": "GitHubCopilotChat/0.35.0"
      },
      body: JSON.stringify({
        client_id: CLIENT_ID,
        device_code: deviceCode,
        grant_type: "urn:ietf:params:oauth:grant-type:device_code"
      })
    });
    if (raw && typeof raw === "object" && typeof raw.access_token === "string") {
      return raw.access_token;
    }
    if (raw && typeof raw === "object" && typeof raw.error === "string") {
      const err = raw.error;
      if (err === "authorization_pending") {
        await abortableSleep(intervalMs, signal);
        continue;
      }
      if (err === "slow_down") {
        intervalMs += 5000;
        await abortableSleep(intervalMs, signal);
        continue;
      }
      throw new Error(`Device flow failed: ${err}`);
    }
    await abortableSleep(intervalMs, signal);
  }
  throw new Error("Device flow timed out");
}
/**
 * Refresh GitHub Copilot token
 */
async function refreshGitHubCopilotToken(refreshToken, enterpriseDomain) {
  const domain = enterpriseDomain || "github.com";
  const urls = getUrls(domain);
  const raw = await fetchJson(urls.copilotTokenUrl, {
    headers: {
      Accept: "application/json",
      Authorization: `Bearer ${refreshToken}`,
      ...COPILOT_HEADERS
    }
  });
  if (!raw || typeof raw !== "object") {
    throw new Error("Invalid Copilot token response");
  }
  const token = raw.token;
  const expiresAt = raw.expires_at;
  if (typeof token !== "string" || typeof expiresAt !== "number") {
    throw new Error("Invalid Copilot token response fields");
  }
  return {
    refresh: refreshToken,
    access: token,
    expires: expiresAt * 1000 - 5 * 60 * 1000,
    enterpriseUrl: enterpriseDomain
  };
}
/**
 * Enable a model for the user's GitHub Copilot account.
 * This is required for some models (like Claude, Grok) before they can be used.
 */
async function enableGitHubCopilotModel(token, modelId, enterpriseDomain) {
  const baseUrl = getGitHubCopilotBaseUrl(token, enterpriseDomain);
  const url = `${baseUrl}/models/${modelId}/policy`;
  try {
    const response = await fetch(url, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
        Authorization: `Bearer ${token}`,
        ...COPILOT_HEADERS,
        "openai-intent": "chat-policy",
        "x-interaction-type": "chat-policy"
      },
      body: JSON.stringify({ state: "enabled" })
    });
    return response.ok;
  }
  catch {
    return false;
  }
}
/**
 * Enable all known GitHub Copilot models that may require policy acceptance.
 * Called after successful login to ensure all models are available.
 */
async function enableAllGitHubCopilotModels(token, enterpriseDomain, onProgress) {
  const models = (0, _models.getModels)("github-copilot");
  await Promise.all(models.map(async (model) => {
    const success = await enableGitHubCopilotModel(token, model.id, enterpriseDomain);
    onProgress?.(model.id, success);
  }));
}
/**
 * Login with GitHub Copilot OAuth (device code flow)
 *
 * @param options.onAuth - Callback with URL and optional instructions (user code)
 * @param options.onPrompt - Callback to prompt user for input
 * @param options.onProgress - Optional progress callback
 * @param options.signal - Optional AbortSignal for cancellation
 */
async function loginGitHubCopilot(options) {
  const input = await options.onPrompt({
    message: "GitHub Enterprise URL/domain (blank for github.com)",
    placeholder: "company.ghe.com",
    allowEmpty: true
  });
  if (options.signal?.aborted) {
    throw new Error("Login cancelled");
  }
  const trimmed = input.trim();
  const enterpriseDomain = normalizeDomain(input);
  if (trimmed && !enterpriseDomain) {
    throw new Error("Invalid GitHub Enterprise URL/domain");
  }
  const domain = enterpriseDomain || "github.com";
  const device = await startDeviceFlow(domain);
  options.onAuth(device.verification_uri, `Enter code: ${device.user_code}`);
  const githubAccessToken = await pollForGitHubAccessToken(domain, device.device_code, device.interval, device.expires_in, options.signal);
  const credentials = await refreshGitHubCopilotToken(githubAccessToken, enterpriseDomain ?? undefined);
  // Enable all models after successful login
  options.onProgress?.("Enabling models...");
  await enableAllGitHubCopilotModels(credentials.access, enterpriseDomain ?? undefined);
  return credentials;
}
const githubCopilotOAuthProvider = exports.githubCopilotOAuthProvider = {
  id: "github-copilot",
  name: "GitHub Copilot",
  async login(callbacks) {
    return loginGitHubCopilot({
      onAuth: (url, instructions) => callbacks.onAuth({ url, instructions }),
      onPrompt: callbacks.onPrompt,
      onProgress: callbacks.onProgress,
      signal: callbacks.signal
    });
  },
  async refreshToken(credentials) {
    const creds = credentials;
    return refreshGitHubCopilotToken(creds.refresh, creds.enterpriseUrl);
  },
  getApiKey(credentials) {
    return credentials.access;
  },
  modifyModels(models, credentials) {
    const creds = credentials;
    const domain = creds.enterpriseUrl ? normalizeDomain(creds.enterpriseUrl) ?? undefined : undefined;
    const baseUrl = getGitHubCopilotBaseUrl(creds.access, domain);
    return models.map((m) => m.provider === "github-copilot" ? { ...m, baseUrl } : m);
  }
}; /* v9-ec5dea0ab3e7551e */