package emarsys

import (
	"context"

	"github.com/foomo/sesamy-cli/pkg/config"
	"github.com/foomo/sesamy-cli/pkg/provider/emarsys/web/tag"
	"github.com/foomo/sesamy-cli/pkg/provider/emarsys/web/template"
	containertag "github.com/foomo/sesamy-cli/pkg/provider/googleanalytics/web/tag"
	"github.com/foomo/sesamy-cli/pkg/provider/googletag"
	commonvariable "github.com/foomo/sesamy-cli/pkg/provider/googletag/web/variable"
	"github.com/foomo/sesamy-cli/pkg/tagmanager"
	commontrigger "github.com/foomo/sesamy-cli/pkg/tagmanager/common/trigger"
	"github.com/pkg/errors"
)

func Web(ctx context.Context, tm *tagmanager.TagManager, cfg config.Emarsys) error {
	folder, err := tm.UpsertFolder(ctx, "Sesamy - "+Name)
	if err != nil {
		return err
	}

	{ // create initialization tag
		tagTemplate, err := tm.UpsertCustomTemplate(ctx, template.NewEmarsysInitializationTag(NameWebEmarsysInitalizationTagTemplate))
		if err != nil {
			return err
		}

		if _, err = tm.UpsertTag(ctx, folder, tag.NewEmarsysInitialization(NameWebEmarsysInitalizationTag, tagTemplate)); err != nil {
			return err
		}
	}

	if _, err := googletag.CreateWebDatalayerVariables(ctx, tm, map[string]string{
		"emarsys_page_view_id": "emarsys.page_view_id",
	}); err != nil {
		return err
	}

	{ // create event tags
		tagID, err := tm.LookupVariable(ctx, googletag.NameGoogleTagID)
		if err != nil {
			return err
		}

		eventParameters, err := googletag.CreateWebEventTriggers(ctx, tm, cfg.WebContainer)
		if err != nil {
			return err
		}

		for event := range eventParameters {
			eventTrigger, err := tm.LookupTrigger(ctx, commontrigger.EventName(event))
			if err != nil {
				return errors.Wrap(err, "failed to lookup event trigger: "+event)
			}

			eventSettings, err := tm.LookupVariable(ctx, commonvariable.GoogleTagEventSettingsName(event))
			if err != nil {
				return errors.Wrap(err, "failed to lookup google tag event setting: "+event)
			}

			if _, err := tm.UpsertTag(ctx, folder, containertag.NewGoogleAnalyticsEvent(event, tagID, eventSettings, eventTrigger)); err != nil {
				return err
			}
		}
	}

	return nil
}