// Package exchange 提供换货业务对公共基础设施的 Adapter。
package exchange

import (
	"context"
	"fmt"
	"strconv"

	"gorm.io/gorm"

	exchangeapp "github.com/break/junhong_cmp_fiber/internal/application/exchange"
	notificationapp "github.com/break/junhong_cmp_fiber/internal/application/notification"
	"github.com/break/junhong_cmp_fiber/internal/infrastructure/messaging/outbox"
	"github.com/break/junhong_cmp_fiber/pkg/constants"
	"github.com/break/junhong_cmp_fiber/pkg/errors"
)

// ShippingNotificationWriter 将物流换货创建事实转换为个人客户通知 Outbox。
type ShippingNotificationWriter struct {
	outbox *outbox.Repository
}

// NewShippingNotificationWriter 创建物流换货通知 Outbox Adapter。
func NewShippingNotificationWriter(repository *outbox.Repository) *ShippingNotificationWriter {
	return &ShippingNotificationWriter{outbox: repository}
}

// Append 在换货业务事务中追加稳定且可重复提交的个人客户通知事件。
func (w *ShippingNotificationWriter) Append(ctx context.Context, tx *gorm.DB, event exchangeapp.ShippingCreatedEvent) error {
	if w == nil || w.outbox == nil {
		return errors.New(errors.CodeInternalError, "物流换货通知 Outbox Writer 未配置")
	}
	exchangeID := strconv.FormatUint(uint64(event.ExchangeID), 10)
	assetID := strconv.FormatUint(uint64(event.AssetID), 10)
	eventID := fmt.Sprintf("exchange-created:%d:%d", event.ExchangeID, event.CustomerID)
	_, err := w.outbox.AppendIdempotent(ctx, tx, outbox.Envelope{
		EventID: eventID, EventType: constants.OutboxEventTypePersonalCustomerDirectNotification,
		PayloadVersion: constants.NotificationPayloadVersionV1,
		AggregateType:  "exchange", AggregateID: exchangeID,
		ResourceType: event.AssetType, ResourceID: assetID,
		BusinessKey: eventID, RequestID: event.RequestID, CorrelationID: event.CorrelationID,
		Payload: notificationapp.PersonalCustomerDirectPayload{
			RecipientID: event.CustomerID, NotificationType: constants.NotificationTypeExchangeShippingCreated,
			TemplateData: map[string]string{}, RefType: constants.NotificationRefTypeAsset,
			RefID: assetID, RefKey: event.AssetIdentifier,
		},
	})
	return err
}
