use backend::browser::{BrowserFetchOptions, BrowserModule, BrowserModuleConfig};
use backend::persona;
use backend::proxy::ProxyConfig;

#[tokio::main]
async fn main() -> anyhow::Result<()> {
    let _ = dotenvy::dotenv();
    backend::logs::init();
    let request_id = "diag-yt";

    let proxy = ProxyConfig::from_env(request_id)?;
    let browser_config = BrowserModuleConfig {
        no_sandbox: true,
        navigation_timeout_secs: 75,
        ..Default::default()
    };
    let browser = BrowserModule::new(proxy, browser_config)?;

    let persona = persona::generate(request_id, Some("br"));
    println!(
        "persona: chrome_major={} platform={:?} locale={}",
        persona.chrome_major, persona.platform, persona.locale
    );

    let options = BrowserFetchOptions {
        warmup_url: Some("https://www.youtube.com/".into()),
        wait_after_load_ms: 6_000,
        block_heavy_resources: false,
        max_html_bytes: 32 * 1024 * 1024,
        scroll_rounds: 0,
        scroll_delay_ms: 800,
        interaction_query: None,
        interaction_selector: None,
        skip_challenge_check: false,
    };

    let url = "https://www.youtube.com/results?search_query=podcast+tecnologia&sp=EgIQAg%3D%3D&hl=pt-BR&gl=BR";
    let page = browser
        .fetch_html_with_options_and_persona(request_id, url, options, persona)
        .await?;

    println!("final_url: {}", page.final_url);
    println!("html_len: {}", page.html.len());
    std::fs::write("/tmp/yt_diag.html", &page.html)?;
    println!("html salvo em /tmp/yt_diag.html");

    // Procurar sinais de challenge/cookiewall
    let lower = page.html.to_ascii_lowercase();
    let needles = [
        "unusual traffic",
        "detected unusual traffic",
        "não sou um robô",
        "recaptcha",
        "hcaptcha",
        "cf-chl-challenge",
        "consent.google.com",
        "consent.youtube",
        "g-recaptcha",
        "sorry/index",
        "ogat",
        "servicey",
        "our systems have detected",
        "consent.youtube.com",
        "agree",
        "aceitar",
        "sign in",
        "faça login",
        "before you continue",
        "antes de continuar",
    ];
    for n in needles {
        if let Some(idx) = lower.find(n) {
            let start = idx.saturating_sub(80);
            let ctx: String = page.html.chars().skip(start).take(200).collect();
            println!("FOUND needle {n:?}: ...{ctx}...");
        }
    }

    if page.html.contains("ytInitialData") {
        println!("ytInitialData encontrado");
    } else {
        println!("ytInitialData AUSENTE");
    }
    if page.html.contains("ytInitialPlayerResponse") {
        println!("ytInitialPlayerResponse encontrado (raro em /results)");
    }
    println!("\ntitle (primeiros 500 chars):");
    if let Some(start) = page.html.find("<title") {
        let end = page.html[start..]
            .find("</title>")
            .map(|e| start + e + 8)
            .unwrap_or(start + 500);
        println!("{}", &page.html[start..end.min(page.html.len())]);
    }

    Ok(())
}