import { type Recipient } from "./recipients.js";
/**
 * Build a Microsoft Graph message resource from the tool input shape shared by
 * outlook-mail-send and outlook-draft. Graph stores one body with a single
 * contentType, so `isHtml` chooses HTML vs Text for the whole message.
 *
 * `MessageInput` is the TOOL INPUT shape, not the Graph message shape —
 * `GraphMessage` below is the latter. That is why `attachments` lives here but
 * never reaches `buildMessage`'s output.
 */
export interface MessageInput {
    to: string[];
    cc?: string[];
    bcc?: string[];
    subject: string;
    body: string;
    isHtml?: boolean;
    /** Absolute paths inside the account directory. Attachments are separate Graph
     *  POSTs against the created draft, NOT part of the message resource, so
     *  `buildMessage` deliberately ignores this field. */
    attachments?: string[];
}
export interface GraphMessage {
    subject: string;
    body: {
        contentType: "HTML" | "Text";
        content: string;
    };
    toRecipients: Recipient[];
    ccRecipients?: Recipient[];
    bccRecipients?: Recipient[];
}
export declare function buildMessage(input: MessageInput): GraphMessage;
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