// Code generated by sqlc. DO NOT EDIT.
// versions:
//   sqlc v1.31.1
// source: admin_status.sql

package dbq

import (
	"context"

	"github.com/jackc/pgx/v5/pgtype"
)

const downloadsStatus = `-- name: DownloadsStatus :one
SELECT COUNT(*) FILTER (WHERE ended_at IS NULL AND import_state IN ('', 'downloading', 'waiting', 'importing'))::bigint AS running,
       COUNT(*) FILTER (WHERE ended_at IS NULL AND import_state IN ('review', 'failed'))::bigint AS needs_you,
       MIN(COALESCE(import_updated_at, grabbed_at)) FILTER (WHERE ended_at IS NULL AND import_state IN ('review', 'failed'))::timestamptz AS needs_you_since,
       COUNT(*) FILTER (WHERE imported_at > now() - INTERVAL '24 hours')::bigint AS imported_day,
       COUNT(*) FILTER (WHERE ended_at > now() - INTERVAL '24 hours'
                          AND end_reason IN ('stalled', 'failed', 'gone', 'abandoned'))::bigint AS given_up_day
  FROM grabs
 WHERE ended_at IS NULL
    OR ended_at > now() - INTERVAL '24 hours'
    OR imported_at > now() - INTERVAL '24 hours'
`

type DownloadsStatusRow struct {
	Running       int64
	NeedsYou      int64
	NeedsYouSince pgtype.Timestamptz
	ImportedDay   int64
	GivenUpDay    int64
}

// Downloads at a glance: running, waiting on a person (and since when), and
// the last day's imports and give-ups.
func (q *Queries) DownloadsStatus(ctx context.Context) (DownloadsStatusRow, error) {
	row := q.db.QueryRow(ctx, downloadsStatus)
	var i DownloadsStatusRow
	err := row.Scan(
		&i.Running,
		&i.NeedsYou,
		&i.NeedsYouSince,
		&i.ImportedDay,
		&i.GivenUpDay,
	)
	return i, err
}

const libraryStatus = `-- name: LibraryStatus :one
SELECT COUNT(*)::bigint                   AS tracks,
       COUNT(DISTINCT album_id)::bigint   AS albums,
       COUNT(DISTINCT artist_id)::bigint  AS artists,
       COALESCE(SUM(file_size), 0)::bigint AS bytes
  FROM tracks
 WHERE missing_since IS NULL
`

type LibraryStatusRow struct {
	Tracks  int64
	Albums  int64
	Artists int64
	Bytes   int64
}

// What the library holds on disk: tracks whose files are present, the
// albums and artists they make, and their size.
func (q *Queries) LibraryStatus(ctx context.Context) (LibraryStatusRow, error) {
	row := q.db.QueryRow(ctx, libraryStatus)
	var i LibraryStatusRow
	err := row.Scan(
		&i.Tracks,
		&i.Albums,
		&i.Artists,
		&i.Bytes,
	)
	return i, err
}

const listListeningNow = `-- name: ListListeningNow :many

SELECT pe.started_at, pe.client_id, pe.device_class,
       u.username,
       t.id AS track_id, t.title AS track_title, t.duration_ms,
       ar.name AS artist_name,
       al.id AS album_id, al.title AS album_title
  FROM play_events pe
  JOIN users u    ON u.id = pe.user_id
  JOIN tracks t   ON t.id = pe.track_id
  JOIN albums al  ON al.id = t.album_id
  JOIN artists ar ON ar.id = t.artist_id
 WHERE pe.ended_at IS NULL
   AND pe.started_at > now() - INTERVAL '24 hours'
   AND pe.started_at + make_interval(secs => t.duration_ms / 1000.0) + INTERVAL '5 minutes' > now()
 ORDER BY pe.started_at DESC
 LIMIT 20
`

type ListListeningNowRow struct {
	StartedAt   pgtype.Timestamptz
	ClientID    *string
	DeviceClass *string
	Username    string
	TrackID     pgtype.UUID
	TrackTitle  string
	DurationMs  int32
	ArtistName  string
	AlbumID     pgtype.UUID
	AlbumTitle  string
}

// The admin Overview's status sections (M504): who is listening, what is
// downloading, what the library holds. Each is one cheap read.
// Plays in progress: open play events still inside their track's length,
// with a few minutes' grace for a pause. A client that never says a play
// ended would otherwise read as listening until the 24-hour sweep closes it.
func (q *Queries) ListListeningNow(ctx context.Context) ([]ListListeningNowRow, error) {
	rows, err := q.db.Query(ctx, listListeningNow)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []ListListeningNowRow
	for rows.Next() {
		var i ListListeningNowRow
		if err := rows.Scan(
			&i.StartedAt,
			&i.ClientID,
			&i.DeviceClass,
			&i.Username,
			&i.TrackID,
			&i.TrackTitle,
			&i.DurationMs,
			&i.ArtistName,
			&i.AlbumID,
			&i.AlbumTitle,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const playsLastDay = `-- name: PlaysLastDay :one
SELECT COUNT(*)::bigint                AS plays,
       COUNT(DISTINCT user_id)::bigint AS listeners,
       MAX(started_at)::timestamptz    AS last_at
  FROM play_events
 WHERE started_at > now() - INTERVAL '24 hours'
`

type PlaysLastDayRow struct {
	Plays     int64
	Listeners int64
	LastAt    pgtype.Timestamptz
}

// The last day's listening, for the line under Listening now.
func (q *Queries) PlaysLastDay(ctx context.Context) (PlaysLastDayRow, error) {
	row := q.db.QueryRow(ctx, playsLastDay)
	var i PlaysLastDayRow
	err := row.Scan(&i.Plays, &i.Listeners, &i.LastAt)
	return i, err
}