/**
 * @fileoverview Defines the core logic, schemas, and types for the `perplexity_search` tool.
 * This tool interfaces with the Perplexity API to provide search-augmented answers.
 * @module src/mcp-server/tools/perplexitySearch/logic
 */
import { z } from 'zod';
import { RequestContext } from '../../../utils/index.js';
export declare const PerplexitySearchInputSchema: z.ZodObject<{
    query: z.ZodString;
    return_related_questions: z.ZodDefault<z.ZodOptional<z.ZodBoolean>>;
    search_recency_filter: z.ZodOptional<z.ZodString>;
    search_domain_filter: z.ZodOptional<z.ZodArray<z.ZodString, "many">>;
    search_after_date_filter: z.ZodOptional<z.ZodString>;
    search_before_date_filter: z.ZodOptional<z.ZodString>;
    search_mode: z.ZodOptional<z.ZodEnum<["web", "academic"]>>;
    showThinking: z.ZodDefault<z.ZodOptional<z.ZodBoolean>>;
}, "strip", z.ZodTypeAny, {
    return_related_questions: boolean;
    query: string;
    showThinking: boolean;
    search_domain_filter?: string[] | undefined;
    search_recency_filter?: string | undefined;
    search_after_date_filter?: string | undefined;
    search_before_date_filter?: string | undefined;
    search_mode?: "web" | "academic" | undefined;
}, {
    query: string;
    search_domain_filter?: string[] | undefined;
    search_recency_filter?: string | undefined;
    search_after_date_filter?: string | undefined;
    search_before_date_filter?: string | undefined;
    return_related_questions?: boolean | undefined;
    search_mode?: "web" | "academic" | undefined;
    showThinking?: boolean | undefined;
}>;
declare const SearchResultSchema: z.ZodObject<{
    title: z.ZodString;
    url: z.ZodString;
    date: z.ZodOptional<z.ZodNullable<z.ZodString>>;
}, "strip", z.ZodTypeAny, {
    url: string;
    title: string;
    date?: string | null | undefined;
}, {
    url: string;
    title: string;
    date?: string | null | undefined;
}>;
export declare const PerplexitySearchResponseSchema: z.ZodObject<{
    rawResultText: z.ZodString;
    responseId: z.ZodString;
    modelUsed: z.ZodString;
    usage: z.ZodObject<{
        prompt_tokens: z.ZodNumber;
        completion_tokens: z.ZodNumber;
        total_tokens: z.ZodNumber;
    }, "strip", z.ZodTypeAny, {
        prompt_tokens: number;
        completion_tokens: number;
        total_tokens: number;
    }, {
        prompt_tokens: number;
        completion_tokens: number;
        total_tokens: number;
    }>;
    searchResults: z.ZodOptional<z.ZodArray<z.ZodObject<{
        title: z.ZodString;
        url: z.ZodString;
        date: z.ZodOptional<z.ZodNullable<z.ZodString>>;
    }, "strip", z.ZodTypeAny, {
        url: string;
        title: string;
        date?: string | null | undefined;
    }, {
        url: string;
        title: string;
        date?: string | null | undefined;
    }>, "many">>;
}, "strip", z.ZodTypeAny, {
    usage: {
        prompt_tokens: number;
        completion_tokens: number;
        total_tokens: number;
    };
    responseId: string;
    rawResultText: string;
    modelUsed: string;
    searchResults?: {
        url: string;
        title: string;
        date?: string | null | undefined;
    }[] | undefined;
}, {
    usage: {
        prompt_tokens: number;
        completion_tokens: number;
        total_tokens: number;
    };
    responseId: string;
    rawResultText: string;
    modelUsed: string;
    searchResults?: {
        url: string;
        title: string;
        date?: string | null | undefined;
    }[] | undefined;
}>;
export type PerplexitySearchInput = z.infer<typeof PerplexitySearchInputSchema>;
export type PerplexitySearchResponse = z.infer<typeof PerplexitySearchResponseSchema>;
export type SearchResult = z.infer<typeof SearchResultSchema>;
/**
 * 3. IMPLEMENT and export the core logic function.
 * It must remain pure: its only concerns are its inputs and its return value or thrown error.
 * @throws {McpError} If the logic encounters an unrecoverable issue.
 */
export declare function perplexitySearchLogic(params: PerplexitySearchInput, context: RequestContext): Promise<PerplexitySearchResponse>;
export {};