export class AuthCommandError extends Error {
}
const AUTH_COMMAND_USAGE = {
    check: "pi auth check --provider <provider> [--json] [--credentials] [--no-refresh]",
    api_key: "pi auth print-api-key --provider <provider> [--model <model>]",
    bearer_token: "pi auth print-bearer-token --provider <provider> [--model <model>] [--min-expiry <duration>]",
};
export function getAuthCommandName(kind) {
    return kind === "check" ? "auth check" : kind === "api_key" ? "auth print-api-key" : "auth print-bearer-token";
}
export function getAuthCommandUsage(kind) {
    return AUTH_COMMAND_USAGE[kind];
}
export function isAuthCommandHelp(args) {
    return (args[0] === "auth" &&
        (args[1] === undefined || args[1] === "help" || args.includes("--help") || args.includes("-h")));
}
export function printAuthCommandHelp() {
    console.log(`Usage:
  pi auth print-api-key [--provider <provider>] [--model <model>]
  pi auth print-bearer-token [--provider <provider>] [--model <model>] [--min-expiry <duration>]
  pi auth check [--provider <provider>] [--model <model>] [--json] [--credentials] [--no-refresh]

Auth commands require at least one of --provider or --model. Checks refresh expired OAuth credentials by default; --no-refresh prevents this. --credentials emits the credential, or includes it in JSON output.`);
}
export function parseAuthCommand(args) {
    if (args[0] !== "auth")
        return undefined;
    const kind = args[1] === "check"
        ? "check"
        : args[1] === "print-api-key"
            ? "api_key"
            : args[1] === "print-bearer-token"
                ? "bearer_token"
                : undefined;
    if (!kind) {
        throw new AuthCommandError(`Unknown auth command "${args[1] ?? ""}". Use "pi auth print-api-key", "pi auth print-bearer-token", or "pi auth check".`);
    }
    const commandArgs = [];
    let json = false;
    let credentials = false;
    let noRefresh = false;
    let minExpiryMs;
    for (let index = 2; index < args.length; index++) {
        const arg = args[index];
        if (arg === "--min-expiry") {
            if (kind !== "bearer_token")
                throw new AuthCommandError("--min-expiry is only supported by print-bearer-token");
            const value = args[++index];
            const match = value ? /^(\d+)(ms|s|m|h)$/iu.exec(value) : undefined;
            if (!match)
                throw new AuthCommandError("--min-expiry must use a duration such as 30m or 1h");
            const amount = Number(match[1]);
            const unit = match[2];
            minExpiryMs = amount * (unit === "ms" ? 1 : unit === "s" ? 1_000 : unit === "m" ? 60_000 : 3_600_000);
            continue;
        }
        if (arg === "--json" || arg === "--credentials" || arg === "--no-refresh") {
            if (kind !== "check")
                throw new AuthCommandError(`${arg} is only supported by auth check`);
            if (arg === "--json")
                json = true;
            else if (arg === "--credentials")
                credentials = true;
            else
                noRefresh = true;
            continue;
        }
        commandArgs.push(arg);
    }
    return minExpiryMs === undefined
        ? { kind, args: commandArgs, json, credentials, noRefresh }
        : { kind, args: commandArgs, json, credentials, noRefresh, minExpiryMs };
}
export function validateAuthCommandArgs(args, kind) {
    const provider = args.provider?.trim() || undefined;
    const model = args.model?.trim() || undefined;
    if (args.unknownFlags.size > 0) {
        const option = args.unknownFlags.keys().next().value;
        throw new AuthCommandError(`Unknown option --${option} for "${getAuthCommandName(kind)}".`);
    }
    if (args.apiKey !== undefined || args.messages.length > 0 || args.fileArgs.length > 0) {
        throw new AuthCommandError("Auth commands only accept --provider and --model");
    }
    if (kind === "check") {
        if (!provider && !model) {
            throw new AuthCommandError("Auth checks require --provider <provider> or --model <model>");
        }
        return { provider, model };
    }
    if (!provider && !model) {
        throw new AuthCommandError("Credential printing requires --provider <provider> or --model <model>");
    }
    return { provider, model };
}
export function getAuthCredential(auth) {
    if (auth?.auth.apiKey)
        return auth.auth.apiKey;
    const authorization = Object.entries(auth?.auth.headers ?? {}).find(([name]) => name.toLowerCase() === "authorization")?.[1];
    return typeof authorization === "string" ? /^Bearer\s+(.+)$/iu.exec(authorization)?.[1] : undefined;
}
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