// Code generated by sqlc. DO NOT EDIT.
// versions:
//   sqlc v1.30.0
// source: metrics.sql

package db

import (
	"context"

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

const getCurrentMetrics = `-- name: GetCurrentMetrics :one
SELECT running_count, vcpus_reserved, memory_mb_reserved, sampled_at
FROM sandbox_metrics_snapshots
WHERE team_id = $1
ORDER BY sampled_at DESC
LIMIT 1
`

type GetCurrentMetricsRow struct {
	RunningCount     int32              `json:"running_count"`
	VcpusReserved    int32              `json:"vcpus_reserved"`
	MemoryMbReserved int32              `json:"memory_mb_reserved"`
	SampledAt        pgtype.Timestamptz `json:"sampled_at"`
}

func (q *Queries) GetCurrentMetrics(ctx context.Context, teamID string) (GetCurrentMetricsRow, error) {
	row := q.db.QueryRow(ctx, getCurrentMetrics, teamID)
	var i GetCurrentMetricsRow
	err := row.Scan(
		&i.RunningCount,
		&i.VcpusReserved,
		&i.MemoryMbReserved,
		&i.SampledAt,
	)
	return i, err
}

const getPeakMetrics = `-- name: GetPeakMetrics :one
SELECT
    COALESCE(MAX(running_count), 0)::INTEGER      AS peak_running_count,
    COALESCE(MAX(vcpus_reserved), 0)::INTEGER     AS peak_vcpus,
    COALESCE(MAX(memory_mb_reserved), 0)::INTEGER AS peak_memory_mb
FROM sandbox_metrics_snapshots
WHERE team_id = $1
  AND sampled_at > NOW() - INTERVAL '30 days'
`

type GetPeakMetricsRow struct {
	PeakRunningCount int32 `json:"peak_running_count"`
	PeakVcpus        int32 `json:"peak_vcpus"`
	PeakMemoryMb     int32 `json:"peak_memory_mb"`
}

func (q *Queries) GetPeakMetrics(ctx context.Context, teamID string) (GetPeakMetricsRow, error) {
	row := q.db.QueryRow(ctx, getPeakMetrics, teamID)
	var i GetPeakMetricsRow
	err := row.Scan(&i.PeakRunningCount, &i.PeakVcpus, &i.PeakMemoryMb)
	return i, err
}

const insertMetricsSnapshot = `-- name: InsertMetricsSnapshot :exec
INSERT INTO sandbox_metrics_snapshots (team_id, running_count, vcpus_reserved, memory_mb_reserved)
VALUES ($1, $2, $3, $4)
`

type InsertMetricsSnapshotParams struct {
	TeamID           string `json:"team_id"`
	RunningCount     int32  `json:"running_count"`
	VcpusReserved    int32  `json:"vcpus_reserved"`
	MemoryMbReserved int32  `json:"memory_mb_reserved"`
}

func (q *Queries) InsertMetricsSnapshot(ctx context.Context, arg InsertMetricsSnapshotParams) error {
	_, err := q.db.Exec(ctx, insertMetricsSnapshot,
		arg.TeamID,
		arg.RunningCount,
		arg.VcpusReserved,
		arg.MemoryMbReserved,
	)
	return err
}

const pruneOldMetrics = `-- name: PruneOldMetrics :exec
DELETE FROM sandbox_metrics_snapshots
WHERE sampled_at < NOW() - INTERVAL '60 days'
`

func (q *Queries) PruneOldMetrics(ctx context.Context) error {
	_, err := q.db.Exec(ctx, pruneOldMetrics)
	return err
}

const sampleSandboxMetrics = `-- name: SampleSandboxMetrics :many
SELECT
    team_id,
    (COUNT(*) FILTER (WHERE status IN ('running', 'starting')))::INTEGER                                              AS running_count,
    (COALESCE(SUM(vcpus)    FILTER (WHERE status IN ('running', 'starting')), 0)
     + CEIL(COALESCE(SUM(vcpus)    FILTER (WHERE status = 'paused'), 0)::NUMERIC / 2))::INTEGER                      AS vcpus_reserved,
    (COALESCE(SUM(memory_mb) FILTER (WHERE status IN ('running', 'starting')), 0)
     + CEIL(COALESCE(SUM(memory_mb) FILTER (WHERE status = 'paused'), 0)::NUMERIC / 2))::INTEGER                     AS memory_mb_reserved
FROM sandboxes
WHERE status IN ('running', 'starting', 'paused')
GROUP BY team_id
`

type SampleSandboxMetricsRow struct {
	TeamID           string `json:"team_id"`
	RunningCount     int32  `json:"running_count"`
	VcpusReserved    int32  `json:"vcpus_reserved"`
	MemoryMbReserved int32  `json:"memory_mb_reserved"`
}

// Aggregates per-team resource usage from the live sandboxes table.
// paused sandboxes count at 50% (ceil) for capacity reservation.
func (q *Queries) SampleSandboxMetrics(ctx context.Context) ([]SampleSandboxMetricsRow, error) {
	rows, err := q.db.Query(ctx, sampleSandboxMetrics)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []SampleSandboxMetricsRow
	for rows.Next() {
		var i SampleSandboxMetricsRow
		if err := rows.Scan(
			&i.TeamID,
			&i.RunningCount,
			&i.VcpusReserved,
			&i.MemoryMbReserved,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}