//! Scan-pipeline health-check storage.
//!
//! Unlike the other checks, the scan pipeline was originally only alerted on and
//! never persisted, so `/status.json` had nothing to read. This stores the
//! latest result per target the same way `backup_checks` does, so the release
//! viewer can render it from the ledger rather than re-running a live probe on
//! every poll.

use super::{Result, ScanPipelineCheckResult, SqlitePool};
use tracing::instrument;

#[instrument(skip_all)]
pub async fn insert_scan_pipeline_check(
    pool: &SqlitePool,
    result: &ScanPipelineCheckResult,
) -> Result<i64> {
    let issues = serde_json::to_string(&result.issues).unwrap_or_default();
    let row = sqlx::query(
        "INSERT INTO scan_pipeline_checks (target, status, issues, queue_pending, queue_running, queue_stuck, held_total, checked_at, error)
         VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)",
    )
    .bind(&result.target)
    .bind(&result.status)
    .bind(&issues)
    .bind(result.queue_pending)
    .bind(result.queue_running)
    .bind(result.queue_stuck)
    .bind(result.held_total)
    .bind(&result.checked_at)
    .bind(&result.error)
    .execute(pool)
    .await?;
    Ok(row.last_insert_rowid())
}

/// The latest scan-pipeline check for a target, if one has been recorded.
#[instrument(skip_all)]
pub async fn get_latest_scan_pipeline_check(
    pool: &SqlitePool,
    target: &str,
) -> Result<Option<ScanPipelineCheckRow>> {
    Ok(sqlx::query_as::<_, ScanPipelineCheckRow>(
        "SELECT id, target, status, issues, queue_pending, queue_running, queue_stuck, held_total, checked_at, error
         FROM scan_pipeline_checks WHERE target = ? ORDER BY id DESC LIMIT 1",
    )
    .bind(target)
    .fetch_optional(pool)
    .await?)
}

#[derive(Debug, Clone, sqlx::FromRow, serde::Serialize)]
pub struct ScanPipelineCheckRow {
    pub id: i64,
    pub target: String,
    pub status: String,
    /// JSON array of the fired-threshold issue lines. Use [`Self::issue_list`].
    pub issues: String,
    pub queue_pending: i64,
    pub queue_running: i64,
    pub queue_stuck: i64,
    pub held_total: i64,
    pub checked_at: String,
    pub error: Option<String>,
}

impl ScanPipelineCheckRow {
    /// Decode the stored issue lines, tolerating a malformed blob as empty.
    pub fn issue_list(&self) -> Vec<String> {
        serde_json::from_str(&self.issues).unwrap_or_default()
    }
}