import { DestinationServer, sendServer } from '@walkeros/server-core';
import { ChatPostMessageArguments, ChatPostMessageResponse, ChatPostEphemeralArguments, ChatPostEphemeralResponse, ConversationsOpenArguments, ConversationsOpenResponse, WebClient } from '@slack/web-api';
import { Flow } from '@walkeros/core';

/** A single Block Kit block (kept loose -- Slack does not export a union type). */
type SlackBlock = Record<string, unknown>;
interface Settings {
    /** Slack Bot token (xoxb-...). Enables Web API mode. */
    token?: string;
    /** Incoming Webhook URL. Enables webhook mode. */
    webhookUrl?: string;
    /** Default channel ID or name. Required for Web API mode unless every rule provides one. */
    channel?: string;
    /** Default text template. Supports `${data.field}` interpolation against the walkerOS event. */
    text?: string;
    /** Default Block Kit blocks applied when no mapping override is set. */
    blocks?: SlackBlock[];
    /** Auto-add an event-name header block when generating default blocks. Default: true. */
    includeHeader?: boolean;
    /** Enable link unfurling. Default: false. */
    unfurlLinks?: boolean;
    /** Enable media unfurling. Default: false. */
    unfurlMedia?: boolean;
    /** Use mrkdwn formatting. Default: true. */
    mrkdwn?: boolean;
    /** Static thread_ts to reply to (rarely set at destination level). */
    threadTs?: string;
    /** Retry policy passed to WebClient. Default: 'default'. */
    retryConfig?: 'default' | 'fiveRetriesInFiveMinutes' | 'none';
    _client?: WebClient;
}
/**
 * Mock-friendly interface for the WebClient methods the destination calls.
 * Tests inject this via env.slackClient.
 */
interface SlackClientMock {
    chat: {
        postMessage: (opts: ChatPostMessageArguments) => Promise<ChatPostMessageResponse>;
        postEphemeral: (opts: ChatPostEphemeralArguments) => Promise<ChatPostEphemeralResponse>;
    };
    conversations: {
        open: (opts: ConversationsOpenArguments) => Promise<ConversationsOpenResponse>;
    };
}
/**
 * Env -- optional SDK / transport overrides. Production leaves these undefined.
 * Tests inject `slackClient` (Web API mode) and/or `sendServer` (webhook mode).
 */
interface Env extends DestinationServer.Env {
    slackClient?: SlackClientMock;
    sendServer?: typeof sendServer;
}

declare const push: Env;
declare const simulation: string[];

declare const env_push: typeof push;
declare const env_simulation: typeof simulation;
declare namespace env {
  export { env_push as push, env_simulation as simulation };
}

/**
 * Extended step example that may carry destination-level settings overrides.
 */
type SlackStepExample = Flow.StepExample & {
    settings?: Partial<Settings>;
};
/**
 * Slack server destination operates in two modes:
 *
 * 1. Web API mode - calls the injected `env.slackClient` SDK methods
 *    (`chat.postMessage`, `chat.postEphemeral`, `conversations.open`).
 *    Captured as `[callable, args]` with dotted callable names such as
 *    `'slackClient.chat.postMessage'`.
 *
 * 2. Webhook mode - calls `env.sendServer(url, JSON.stringify(body))`.
 *    Captured as `['sendServer', url, bodyAsString]` where `bodyAsString`
 *    is the already-stringified JSON body. Key insertion order in the
 *    source object matters for string equality.
 *
 * A single push may emit multiple calls (e.g. a DM opens a conversation
 * then posts to the returned channel id), so every `out` is wrapped as
 * `[[callable, ...args], ...]`.
 */
/**
 * Purchase notification -- Web API mode, channel from mapping override,
 * text template interpolated against event.data.
 */
declare const purchaseAlert: SlackStepExample;
/**
 * Error alert -- routes to a different channel via mapping override.
 */
declare const errorAlert: SlackStepExample;
/**
 * Welcome DM -- conversations.open(users) -> chat.postMessage(channel: D-id).
 */
declare const welcomeDM: SlackStepExample;
/**
 * Threaded checkout step -- thread_ts override puts the reply into a thread.
 */
declare const threadedCheckoutStep: SlackStepExample;
/**
 * Ephemeral message -- visible to one user in the target channel.
 */
declare const ephemeralMessage: SlackStepExample;
/**
 * Default blocks -- no custom text/blocks, destination auto-generates a
 * Block Kit message from the event data.
 */
declare const defaultBlocks: SlackStepExample;
/**
 * Webhook mode -- no token, just webhookUrl. The destination calls
 * `env.sendServer(url, JSON.stringify(body))`. Channel is baked into the
 * URL by Slack.
 */
declare const deployNotification: SlackStepExample;

type step_SlackStepExample = SlackStepExample;
declare const step_defaultBlocks: typeof defaultBlocks;
declare const step_deployNotification: typeof deployNotification;
declare const step_ephemeralMessage: typeof ephemeralMessage;
declare const step_errorAlert: typeof errorAlert;
declare const step_purchaseAlert: typeof purchaseAlert;
declare const step_threadedCheckoutStep: typeof threadedCheckoutStep;
declare const step_welcomeDM: typeof welcomeDM;
declare namespace step {
  export { type step_SlackStepExample as SlackStepExample, step_defaultBlocks as defaultBlocks, step_deployNotification as deployNotification, step_ephemeralMessage as ephemeralMessage, step_errorAlert as errorAlert, step_purchaseAlert as purchaseAlert, step_threadedCheckoutStep as threadedCheckoutStep, step_welcomeDM as welcomeDM };
}

export { env, step };