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

package db

import (
	"context"

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

const getPathStats = `-- name: GetPathStats :many
WITH readings AS (
    SELECT iata, hour, category, hash_bytes, entries, receptions FROM analytics_hourly_paths
    WHERE hour >= $1::timestamptz AND hour < $2::timestamptz
      AND COALESCE(cardinality($3::bpchar[]), 0) = 0
    UNION ALL
    SELECT iata, hour, category, hash_bytes, entries, receptions FROM analytics_hourly_paths
    WHERE hour >= $1::timestamptz AND hour < $2::timestamptz
      AND cardinality($3::bpchar[]) > 0 AND iata = ANY($3::bpchar[])
)
SELECT (grouping(hour) = 0)::boolean AS is_hourly,
       COALESCE(hour, 'epoch'::timestamptz)::timestamptz AS hour,
       category, hash_bytes, COALESCE(entries, 0)::integer AS entries,
       sum(receptions)::bigint AS receptions,
       -- Non-routed categories store entries = 0, so an hour of only empty paths gives 0.
       COALESCE(max(entries) FILTER (WHERE receptions > 0), 0)::integer AS max_entries
FROM readings
GROUP BY GROUPING SETS ((category, hash_bytes, entries), (hour, category, hash_bytes))
ORDER BY is_hourly, hour, category, hash_bytes, entries
`

type GetPathStatsParams struct {
	Since pgtype.Timestamptz `json:"since"`
	Until pgtype.Timestamptz `json:"until"`
	Iatas []string           `json:"iatas"`
}

type GetPathStatsRow struct {
	IsHourly   bool               `json:"is_hourly"`
	Hour       pgtype.Timestamptz `json:"hour"`
	Category   int32              `json:"category"`
	HashBytes  int32              `json:"hash_bytes"`
	Entries    int32              `json:"entries"`
	Receptions int64              `json:"receptions"`
	MaxEntries int32              `json:"max_entries"`
}

// All HTTP aggregates read the hourly rollup, never observations.
func (q *Queries) GetPathStats(ctx context.Context, arg GetPathStatsParams) ([]GetPathStatsRow, error) {
	rows, err := q.db.Query(ctx, getPathStats, arg.Since, arg.Until, arg.Iatas)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	items := []GetPathStatsRow{}
	for rows.Next() {
		var i GetPathStatsRow
		if err := rows.Scan(
			&i.IsHourly,
			&i.Hour,
			&i.Category,
			&i.HashBytes,
			&i.Entries,
			&i.Receptions,
			&i.MaxEntries,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}