// Phase 7 — search via Sulkta-Coop/strawcore-core. Exposed to Kotlin
// as a suspend fun. SearchItem field shape is unchanged from Phase U-2
// so Kotlin callers (SearchViewModel) keep working with no code
// changes.

use strawcore_core::stream::StreamInfoItem;
use strawcore_core::youtube::linkhandler::search::SearchFilter;
use strawcore_core::youtube::search_extractor;

use crate::error::StrawcoreError;

#[derive(Debug, Clone, uniffi::Record)]
pub struct SearchItem {
    pub url: String,
    pub title: String,
    pub uploader: String,
    pub uploader_url: Option<String>,
    pub thumbnail: Option<String>,
    /// Duration in seconds. 0 = live/unknown.
    pub duration_seconds: i64,
    /// Reported view count. 0 = unknown.
    pub view_count: i64,
    /// Relative upload date as YT renders it ("2 days ago", "3 weeks
    /// ago"). Empty if not extracted. Strawcore-core already populates
    /// this on StreamInfoItem; we just pass it through.
    pub upload_date_relative: String,
}

pub(crate) fn from_core(item: StreamInfoItem) -> SearchItem {
    let uploader_url = if item.uploader_url.is_empty() {
        None
    } else {
        Some(item.uploader_url)
    };
    let thumbnail = item
        .thumbnails
        .last()
        .map(|i| i.url().to_string());
    SearchItem {
        url: item.url,
        title: item.name,
        uploader: item.uploader_name,
        uploader_url,
        thumbnail,
        duration_seconds: item.duration_seconds,
        view_count: if item.view_count < 0 {
            0
        } else {
            item.view_count
        },
        upload_date_relative: item.upload_date_relative,
    }
}

#[uniffi::export(async_runtime = "tokio")]
pub async fn search(query: String) -> Result<Vec<SearchItem>, StrawcoreError> {
    log::info!("strawcore::search query={}", query);
    let result = tokio::task::spawn_blocking(move || {
        search_extractor::search(&query, SearchFilter::Videos)
    })
    .await
    .map_err(|e| StrawcoreError::Extractor {
        msg: format!("join: {e}"),
    })??;
    Ok(result.videos.into_iter().map(from_core).collect())
}