import { BaseConnector } from '../../base/base.connector';
import type { EmailSendInput, EmailSendResult, IEmailConnector } from '../../types';
import { ChannelTypeEnum } from '../../types';
import type { ScalewayConfig } from './scaleway.config';
export declare class ScalewayEmailConnector extends BaseConnector implements IEmailConnector {
    private config;
    readonly id = "scaleway";
    readonly channelType: ChannelTypeEnum.EMAIL;
    constructor(config: ScalewayConfig, fetchImpl?: typeof fetch);
    /**
     * Thinwrap-native send. Implements `IEmailConnector`.
     * Builds Scaleway TEM's snake_case JSON body (nested `from`/`to` address
     * objects + mandatory `project_id`) and POSTs to the region-scoped path
     * `…/regions/{region}/emails` with `X-Auth-Token` auth.
     *
     * Scaleway is structurally close to SparkPost (region + nested address
     * objects + snake_case wire) but differs in three ways handled here:
     *   1. **Region is part of the URL path**, not a host swap (see
     *      `resolveEndpoint()`).
     *   2. **Auth is `X-Auth-Token: <secretKey>`** — not `Authorization`.
     *   3. **`project_id` is mandatory** and comes from config.
     *
     * There is NO Novu-compatible `sendMessage()` surface here: Novu has no Scaleway
     * provider, so there is no shape to be compatible with.
     *
     * Graceful degradation where Scaleway falls below the >=90% baseline:
     *   - `tags` — Scaleway has no tags field at v1.0; silently dropped.
     *   - attachment `contentId` — no inline-image field at v1.0; silently dropped.
     *   - `replyTo` — Scaleway has no `reply_to` field; emitted as a
     *     `Reply-To` entry in `additional_headers`.
     */
    send(input: EmailSendInput): Promise<EmailSendResult>;
    /**
     * Resolve the region-scoped Scaleway endpoint. The region (default `fr-par`)
     * is interpolated into the PATH — Scaleway uses one host for every region.
     */
    private resolveEndpoint;
    /**
     * Hand-build Scaleway's snake_case wire body from Thinwrap's `EmailSendInput`.
     * (locality) the structural wire translation is local to
     * this connector — `additional_headers` Record→array adapter and the nested
     * address-object shaping live here, not in shared middleware.
     */
    private buildScalewayBody;
    /**
     * Map Scaleway error responses to canonical `ConnectorError` with the 6-value
     * `ProviderCode` union. Parses `Retry-After`:
     * parsed seconds embedded in `providerMessage` text; raw header
     * value on `cause.retryAfter`. No top-level `retryAfterSeconds` field per
     * Retry is consumer policy (no retryAfterSeconds field).
     */
    private mapVendorError;
}