package engine

import (
	"context"
	"fmt"

	"aiaa-notification-service/internal/cache"
	"aiaa-notification-service/internal/model"
	"aiaa-notification-service/internal/store"
)

type Matcher struct {
	store *store.Store
}

func NewMatcher(s *store.Store, _ *cache.Cache) *Matcher {
	return &Matcher{store: s}
}

func (m *Matcher) Match(ctx context.Context, sourceID int, event string) ([]model.Rule, error) {
	rules, err := m.store.ListEnabledRulesBySource(ctx, sourceID)
	if err != nil {
		return nil, fmt.Errorf("match rule: %w", err)
	}
	picked := PickEventRules(event, rules)
	if len(picked) == 0 {
		return nil, fmt.Errorf("match rule: no rule for source %d event %s", sourceID, event)
	}
	return picked, nil
}