package api

import (
	"context"
	"database/sql"
	"strings"
	"time"

	"git.ryuvia.com/niklas/terdut-server/internal/config"
)

// DeadmanConfig is a test fixture only: a set of matchers with one timeout and
// severity, turned into switches over the API by the test helpers. Production
// has no server-wide default any more -- switches belong to teams.
type DeadmanConfig struct {
	Matchers []DeadmanMatcher
	Timeout  time.Duration
	Severity string
}

// ParseDeadmanConfig reads a ";"-separated matcher list the way the removed
// environment variable did, dropping malformed entries.
func ParseDeadmanConfig(matchers string, timeout time.Duration, severity string) DeadmanConfig {
	cfg := DeadmanConfig{Timeout: timeout, Severity: severity}
	for _, entry := range strings.Split(matchers, ";") {
		entry = strings.TrimSpace(entry)
		if entry == "" {
			continue
		}
		if m, err := parseDeadmanMatcher(entry); err == nil {
			cfg.Matchers = append(cfg.Matchers, m)
		}
	}
	return cfg
}

// MetricsSweep runs one pass of the metrics worker, so a test need not wait on
// its ticker.
func MetricsSweep(ctx context.Context, db *sql.DB, cfg config.Config) {
	newMetricsService(cfg).sweep(ctx, db)
}