import type { DeploymentConfig, Deployment, CostEstimate, Message, ProviderName } from '../types.js';
/**
 * The unified provider interface every AxonSDK backend must satisfy.
 *
 * Five primitives map to five method groups:
 *   Deploy → deploy()
 *   Match  → (handled internally by provider)
 *   Execute → (handled by deployed code)
 *   Message → send() / onMessage()
 *   Pay    → estimate()
 */
export interface IAxonProvider {
    readonly name: ProviderName;
    /**
     * Authenticate against the provider network.
     * @param secretKey — P256 private key hex string (or provider equivalent)
     */
    connect(secretKey: string): Promise<void>;
    /** Tear down any open connections gracefully. */
    disconnect(): void;
    /**
     * Deploy code to the network and return a Deployment object.
     * Implementations must bundle the entry file, upload it, and register it.
     */
    deploy(config: DeploymentConfig): Promise<Deployment>;
    /**
     * Estimate the cost of a deployment without actually deploying.
     */
    estimate(config: DeploymentConfig): Promise<CostEstimate>;
    /**
     * Return a list of all deployments owned by the current keypair.
     */
    listDeployments(): Promise<Deployment[]>;
    /**
     * Delete/stop a deployment by its ID.
     * Should be a no-op (not throw) if the deployment no longer exists.
     */
    teardown(deploymentId: string): Promise<void>;
    /**
     * Send a message payload to a specific processor node.
     * @param processorId — processor public key (hex string)
     * @param payload     — arbitrary JSON-serialisable data
     */
    send(processorId: string, payload: unknown): Promise<void>;
    /**
     * Register a handler for incoming messages from processors.
     * @returns An unsubscribe function — call it to remove the handler.
     */
    onMessage(handler: (msg: Message) => void): () => void;
}
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