import type {
    SearchConfig,
    SearchProvider,
    SearchResult,
} from '../plugins/docuservix-search/types';

interface RawResult {
    score: number;
    file: string;
    heading: string;
    anchor?: string;
    content: string;
}

function stripNumericPrefixes(p: string): string {
    return p
        .split('/')
        .map((seg) => seg.replace(/^\d+-/, ''))
        .join('/');
}

function resultToUrl(file: string, anchor: string): string {
    let p = file.replace(/^docs\//, '').replace(/\.md$/, '');

    p = stripNumericPrefixes(p);

    return `/docs/${p}#${anchor}`;
}

function resultToDisplayPath(file: string): string {
    const p = file.replace(/^docs\//, '').replace(/\.md$/, '');

    return stripNumericPrefixes(p);
}

function rawToSearchResult(raw: RawResult): SearchResult {
    return {
        title: raw.heading,
        content: raw.content,
        path: resultToDisplayPath(raw.file),
        anchor: raw.anchor,
        type: 'docs',
        relevance: raw.score,
        url: resultToUrl(raw.file, raw.anchor),
    };
}

const docsProvider: SearchProvider = {
    id: 'docs',
    name: 'Документация',
    timeout: 5000,
    async search(query, signal) {
        const res = await fetch(
            `http://localhost:8080/1vit/more/v1/search?q=${encodeURIComponent(query)}&limit=25`,
            { signal },
        );

        if (!res.ok) {
            throw new Error(`HTTP ${res.status}`);
        }

        const data: { results: RawResult[] } = await res.json();

        return {
            results: (data.results ?? []).map(rawToSearchResult),
        };
    },
};

const searchConfig: SearchConfig = {
    timeout: 5000,
    providers: [docsProvider],
};

export default searchConfig;

export const chatUrl = 'http://localhost:8080/1vit/more/v1/chat';