//! Repo-level integration tests for the crawl_metrics timing log.

use chrono::Utc;
use mangalord::repo::crawl_metrics::{
    self, OpFilter, OP_CHAPTER, OP_MANGA_COVER, OP_MANGA_DETAIL, OP_MANGA_LIST,
};
use sqlx::PgPool;
use uuid::Uuid;

async fn seed_manga_chapter(pool: &PgPool, title: &str) -> (Uuid, Uuid) {
    let manga_id: Uuid =
        sqlx::query_scalar("INSERT INTO mangas (title) VALUES ($1) RETURNING id")
            .bind(title)
            .fetch_one(pool)
            .await
            .unwrap();
    let chapter_id: Uuid = sqlx::query_scalar(
        "INSERT INTO chapters (manga_id, number) VALUES ($1, 12) RETURNING id",
    )
    .bind(manga_id)
    .fetch_one(pool)
    .await
    .unwrap();
    (manga_id, chapter_id)
}

#[sqlx::test(migrations = "./migrations")]
async fn summary_rolls_up_avg_counts_and_success(pool: PgPool) {
    let (m, c) = seed_manga_chapter(&pool, "Berserk").await;

    // Two chapter ops (one ok, one failed) + one cover op.
    crawl_metrics::record(&pool, OP_CHAPTER, Some(m), Some(c), "ok", 6000, Some(20), None)
        .await
        .unwrap();
    crawl_metrics::record(
        &pool, OP_CHAPTER, Some(m), Some(c), "failed", 8000, Some(10), Some("boom"),
    )
    .await
    .unwrap();
    crawl_metrics::record(&pool, OP_MANGA_COVER, Some(m), None, "ok", 500, None, None)
        .await
        .unwrap();

    let summary = crawl_metrics::summary(&pool, None).await.unwrap();
    let chapter = summary.iter().find(|s| s.op == OP_CHAPTER).unwrap();
    assert_eq!(chapter.n, 2);
    assert_eq!(chapter.ok, 1);
    assert_eq!(chapter.failed, 1);
    assert_eq!(chapter.avg_ms, Some(7000.0));
    assert_eq!(chapter.avg_items, Some(15.0));

    let cover = summary.iter().find(|s| s.op == OP_MANGA_COVER).unwrap();
    assert_eq!(cover.n, 1);
    assert_eq!(cover.avg_ms, Some(500.0));
    assert_eq!(cover.avg_items, None);
}

#[sqlx::test(migrations = "./migrations")]
async fn summary_window_excludes_old_rows(pool: PgPool) {
    let (m, _c) = seed_manga_chapter(&pool, "X").await;
    crawl_metrics::record(&pool, OP_MANGA_DETAIL, Some(m), None, "ok", 1000, None, None)
        .await
        .unwrap();
    // Backdate it two days.
    sqlx::query("UPDATE crawl_metrics SET finished_at = now() - interval '2 days'")
        .execute(&pool)
        .await
        .unwrap();

    let since = Utc::now() - chrono::Duration::days(1);
    let windowed = crawl_metrics::summary(&pool, Some(since)).await.unwrap();
    assert!(windowed.is_empty(), "row older than the window must be excluded");

    let all = crawl_metrics::summary(&pool, None).await.unwrap();
    assert_eq!(all.len(), 1);
}

#[sqlx::test(migrations = "./migrations")]
async fn list_ops_filters_paginates_and_labels(pool: PgPool) {
    let (m, c) = seed_manga_chapter(&pool, "Bleach").await;
    crawl_metrics::record(&pool, OP_CHAPTER, Some(m), Some(c), "ok", 6000, Some(20), None)
        .await
        .unwrap();
    crawl_metrics::record(&pool, OP_MANGA_LIST, None, None, "failed", 42000, Some(8), Some("oops"))
        .await
        .unwrap();

    // Unfiltered: both, newest-first, with labels resolved.
    let (rows, total) =
        crawl_metrics::list_ops(&pool, OpFilter::default(), 50, 0).await.unwrap();
    assert_eq!(total, 2);
    assert_eq!(rows.len(), 2);
    let chapter_row = rows.iter().find(|r| r.op == OP_CHAPTER).unwrap();
    assert_eq!(chapter_row.manga_title.as_deref(), Some("Bleach"));
    assert_eq!(chapter_row.chapter_number, Some(12));
    assert_eq!(chapter_row.items, Some(20));

    // Filter by op.
    let (rows, total) = crawl_metrics::list_ops(
        &pool, OpFilter { op: Some(OP_MANGA_LIST), ..Default::default() }, 50, 0,
    )
    .await
    .unwrap();
    assert_eq!(total, 1);
    assert_eq!(rows[0].outcome, "failed");
    assert_eq!(rows[0].error.as_deref(), Some("oops"));

    // Filter by outcome.
    let (_rows, total) = crawl_metrics::list_ops(
        &pool, OpFilter { outcome: Some("ok"), ..Default::default() }, 50, 0,
    )
    .await
    .unwrap();
    assert_eq!(total, 1);

    // Pagination: limit clamps the slice; total reflects the full set.
    let (rows, total) =
        crawl_metrics::list_ops(&pool, OpFilter::default(), 1, 0).await.unwrap();
    assert_eq!(rows.len(), 1);
    assert_eq!(total, 2);
}

#[sqlx::test(migrations = "./migrations")]
async fn reap_deletes_old_rows_and_zero_disables(pool: PgPool) {
    crawl_metrics::record(&pool, OP_MANGA_LIST, None, None, "ok", 1000, Some(5), None)
        .await
        .unwrap();
    sqlx::query("UPDATE crawl_metrics SET finished_at = now() - interval '100 days'")
        .execute(&pool)
        .await
        .unwrap();

    // 0 disables — nothing removed.
    assert_eq!(crawl_metrics::reap(&pool, 0).await.unwrap(), 0);
    // 90-day retention removes the 100-day-old row.
    assert_eq!(crawl_metrics::reap(&pool, 90).await.unwrap(), 1);
    let (_rows, total) =
        crawl_metrics::list_ops(&pool, OpFilter::default(), 50, 0).await.unwrap();
    assert_eq!(total, 0);
}