/**
 * Google Search Script
 * This script performs a Google search and extracts results including AI answers,
 * organic results, related questions, and related searches
 */

// Export metadata about the script
export const metadata = {
    name: "google-search",
    version: "1.0.0",
    description:
        "Search Google and extract AI answers, organic results, PAA questions, and related searches",
    inputSchema: {
        type: "object",
        properties: {
            query: {
                type: "string",
                description: "The search query/keyword",
                default: "chatgpt"
            },
            language: {
                type: "string",
                description: "Language code for search results (e.g., en, ja, zh-CN)",
                default: "en"
            },
            page: {
                type: "number",
                description: "Page index (0 for first page, 1 for second, etc.)",
                default: 0,
                minimum: 0
            }
        },
        required: ["query"]
    },
    type: "puppeteer",
    defaultTimeout: 30000,
    fsEnabled: false,
    networkEnabled: true,
    domainsAllowed: ["google.com"],
};

// Export the main run method
// The page object is automatically provided in the context
export const main = async function (input) {
    try {
        // Note: "page" here refers to the Puppeteer browser page object
        const page = global.page;

        if (!page) {
            throw new Error("Page object is not available");
        }

        const keyword = input?.query || "chatgpt";
        const language = input?.language || "en";
        const pageIndex = (input?.page !== undefined && input?.page !== null) ? input.page : 0;

        const start = pageIndex * 10;
        const url = `https://www.google.com/search?q=${encodeURIComponent(keyword)}&hl=${language}&start=${start}`;

        await page.goto(url, {waitUntil: "networkidle2"});
        await page.waitForSelector("div#search");

        const data = await page.evaluate(() => {
            const result = {
                aiAnswer: null,
                results: [],
                questions: [],
                relatedSearches: []
            };

            const answer = document.querySelector(
                "#search div[data-attrid]:not([data-attrid=\"title\"]):not([data-attrid=\"subtitle\"])"
            );
            if (answer) {
                result.aiAnswer = answer.innerText.trim();
            }

            const anchors = document.querySelectorAll("#search a h3");
            anchors.forEach((h3) => {
                const a = h3.closest("a");
                if (a && a.href && h3.innerText.trim()) {
                    const snippetNode = a.parentElement?.parentElement?.querySelector(
                        "div[data-sncf] span, div:not([class]) span"
                    );
                    const snippet = snippetNode ? snippetNode.innerText.trim() : "";

                    result.results.push({
                        title: h3.innerText.trim(),
                        link: a.href,
                        snippet
                    });
                }
            });

            return result;
        });

        return {
            result: {
                content: [{
                    type: "text",
                    text: JSON.stringify(data, null, 2),
                }]
            }
        };
    } catch (error) {
        return {
            error: {
                message: error.message || "Unknown error occurred",
            }
        };
    }
};