314 lines
11 KiB
Go
314 lines
11 KiB
Go
package product
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import (
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"context"
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"github.com/shopspring/decimal"
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"go.uber.org/zap"
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"tyapi-server/internal/application/product/dto/commands"
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appQueries "tyapi-server/internal/application/product/dto/queries"
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"tyapi-server/internal/application/product/dto/responses"
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"tyapi-server/internal/domains/product/entities"
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repoQueries "tyapi-server/internal/domains/product/repositories/queries"
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product_service "tyapi-server/internal/domains/product/services"
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user_repositories "tyapi-server/internal/domains/user/repositories"
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)
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// SubscriptionApplicationServiceImpl 订阅应用服务实现
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// 负责业务流程编排、事务管理、数据转换，不直接操作仓库
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type SubscriptionApplicationServiceImpl struct {
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productSubscriptionService *product_service.ProductSubscriptionService
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userRepo user_repositories.UserRepository
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logger *zap.Logger
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}
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// NewSubscriptionApplicationService 创建订阅应用服务
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func NewSubscriptionApplicationService(
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productSubscriptionService *product_service.ProductSubscriptionService,
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userRepo user_repositories.UserRepository,
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logger *zap.Logger,
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) SubscriptionApplicationService {
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return &SubscriptionApplicationServiceImpl{
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productSubscriptionService: productSubscriptionService,
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userRepo: userRepo,
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logger: logger,
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}
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}
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// UpdateSubscriptionPrice 更新订阅价格
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// 业务流程：1. 获取订阅 2. 更新价格 3. 保存订阅
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func (s *SubscriptionApplicationServiceImpl) UpdateSubscriptionPrice(ctx context.Context, cmd *commands.UpdateSubscriptionPriceCommand) error {
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return s.productSubscriptionService.UpdateSubscriptionPrice(ctx, cmd.ID, cmd.Price)
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}
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// BatchUpdateSubscriptionPrices 一键改价
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// 业务流程：1. 获取用户所有订阅 2. 根据范围筛选 3. 批量更新价格
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func (s *SubscriptionApplicationServiceImpl) BatchUpdateSubscriptionPrices(ctx context.Context, cmd *commands.BatchUpdateSubscriptionPricesCommand) error {
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subscriptions, _, err := s.productSubscriptionService.ListSubscriptions(ctx, &repoQueries.ListSubscriptionsQuery{
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UserID: cmd.UserID,
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Page: 1,
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PageSize: 1000,
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})
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if err != nil {
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return err
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}
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// 根据范围筛选订阅
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var targetSubscriptions []*entities.Subscription
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for _, sub := range subscriptions {
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if cmd.Scope == "all" {
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// 所有订阅都修改
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targetSubscriptions = append(targetSubscriptions, sub)
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} else if cmd.Scope == "undiscounted" {
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// 只修改未打折的订阅（价格等于产品原价）
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if sub.Product != nil && sub.Price.Equal(sub.Product.Price) {
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targetSubscriptions = append(targetSubscriptions, sub)
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}
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}
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}
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// 批量更新价格
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for _, sub := range targetSubscriptions {
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if sub.Product != nil {
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// 计算折扣后的价格
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discountRatio := cmd.Discount / 10
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newPrice := sub.Product.Price.Mul(decimal.NewFromFloat(discountRatio))
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// 四舍五入到2位小数
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newPrice = newPrice.Round(2)
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err := s.productSubscriptionService.UpdateSubscriptionPrice(ctx, sub.ID, newPrice.InexactFloat64())
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if err != nil {
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s.logger.Error("批量更新订阅价格失败",
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zap.String("subscription_id", sub.ID),
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zap.Error(err))
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// 继续处理其他订阅，不中断整个流程
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}
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}
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}
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return nil
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}
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// CreateSubscription 创建订阅
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// 业务流程：1. 创建订阅
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func (s *SubscriptionApplicationServiceImpl) CreateSubscription(ctx context.Context, cmd *commands.CreateSubscriptionCommand) error {
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_, err := s.productSubscriptionService.CreateSubscription(ctx, cmd.UserID, cmd.ProductID)
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return err
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}
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// GetSubscriptionByID 根据ID获取订阅
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// 业务流程：1. 获取订阅信息 2. 构建响应数据
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func (s *SubscriptionApplicationServiceImpl) GetSubscriptionByID(ctx context.Context, query *appQueries.GetSubscriptionQuery) (*responses.SubscriptionInfoResponse, error) {
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subscription, err := s.productSubscriptionService.GetSubscriptionByID(ctx, query.ID)
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if err != nil {
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return nil, err
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}
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return s.convertToSubscriptionInfoResponse(subscription), nil
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}
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// ListSubscriptions 获取订阅列表（管理员用）
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// 业务流程：1. 获取订阅列表 2. 构建响应数据
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func (s *SubscriptionApplicationServiceImpl) ListSubscriptions(ctx context.Context, query *appQueries.ListSubscriptionsQuery) (*responses.SubscriptionListResponse, error) {
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repoQuery := &repoQueries.ListSubscriptionsQuery{
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Page: query.Page,
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PageSize: query.PageSize,
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UserID: query.UserID, // 管理员可以按用户筛选
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Keyword: query.Keyword,
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SortBy: query.SortBy,
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SortOrder: query.SortOrder,
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CompanyName: query.CompanyName,
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ProductName: query.ProductName,
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StartTime: query.StartTime,
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EndTime: query.EndTime,
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}
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subscriptions, total, err := s.productSubscriptionService.ListSubscriptions(ctx, repoQuery)
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if err != nil {
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return nil, err
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}
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items := make([]responses.SubscriptionInfoResponse, len(subscriptions))
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for i := range subscriptions {
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resp := s.convertToSubscriptionInfoResponse(subscriptions[i])
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if resp != nil {
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items[i] = *resp // 解引用指针
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}
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}
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return &responses.SubscriptionListResponse{
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Total: total,
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Page: query.Page,
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Size: query.PageSize,
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Items: items,
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}, nil
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}
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// ListMySubscriptions 获取我的订阅列表（用户用）
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// 业务流程：1. 获取用户订阅列表 2. 构建响应数据
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func (s *SubscriptionApplicationServiceImpl) ListMySubscriptions(ctx context.Context, userID string, query *appQueries.ListSubscriptionsQuery) (*responses.SubscriptionListResponse, error) {
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repoQuery := &repoQueries.ListSubscriptionsQuery{
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Page: query.Page,
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PageSize: query.PageSize,
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UserID: userID, // 强制设置为当前用户ID
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Keyword: query.Keyword,
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SortBy: query.SortBy,
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SortOrder: query.SortOrder,
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CompanyName: query.CompanyName,
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ProductName: query.ProductName,
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StartTime: query.StartTime,
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EndTime: query.EndTime,
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}
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subscriptions, total, err := s.productSubscriptionService.ListSubscriptions(ctx, repoQuery)
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if err != nil {
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return nil, err
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}
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items := make([]responses.SubscriptionInfoResponse, len(subscriptions))
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for i := range subscriptions {
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resp := s.convertToSubscriptionInfoResponse(subscriptions[i])
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if resp != nil {
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items[i] = *resp // 解引用指针
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}
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}
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return &responses.SubscriptionListResponse{
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Total: total,
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Page: query.Page,
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Size: query.PageSize,
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Items: items,
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}, nil
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}
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// GetUserSubscriptions 获取用户订阅
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// 业务流程：1. 获取用户订阅 2. 构建响应数据
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func (s *SubscriptionApplicationServiceImpl) GetUserSubscriptions(ctx context.Context, query *appQueries.GetUserSubscriptionsQuery) ([]*responses.SubscriptionInfoResponse, error) {
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subscriptions, err := s.productSubscriptionService.GetUserSubscriptions(ctx, query.UserID)
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if err != nil {
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return nil, err
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}
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// 转换为响应对象
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items := make([]*responses.SubscriptionInfoResponse, len(subscriptions))
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for i := range subscriptions {
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items[i] = s.convertToSubscriptionInfoResponse(subscriptions[i])
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}
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return items, nil
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}
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// GetProductSubscriptions 获取产品订阅
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// 业务流程：1. 获取产品订阅 2. 构建响应数据
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func (s *SubscriptionApplicationServiceImpl) GetProductSubscriptions(ctx context.Context, query *appQueries.GetProductSubscriptionsQuery) ([]*responses.SubscriptionInfoResponse, error) {
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// 这里需要扩展领域服务来支持按产品查询订阅
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// 暂时返回空列表
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return []*responses.SubscriptionInfoResponse{}, nil
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}
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// GetSubscriptionUsage 获取订阅使用情况
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// 业务流程：1. 获取订阅使用情况 2. 构建响应数据
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func (s *SubscriptionApplicationServiceImpl) GetSubscriptionUsage(ctx context.Context, subscriptionID string) (*responses.SubscriptionUsageResponse, error) {
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subscription, err := s.productSubscriptionService.GetSubscriptionByID(ctx, subscriptionID)
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if err != nil {
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return nil, err
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}
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return &responses.SubscriptionUsageResponse{
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ID: subscription.ID,
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ProductID: subscription.ProductID,
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APIUsed: subscription.APIUsed,
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}, nil
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}
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// GetSubscriptionStats 获取订阅统计信息
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// 业务流程：1. 获取订阅统计 2. 构建响应数据
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func (s *SubscriptionApplicationServiceImpl) GetSubscriptionStats(ctx context.Context) (*responses.SubscriptionStatsResponse, error) {
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stats, err := s.productSubscriptionService.GetSubscriptionStats(ctx)
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if err != nil {
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return nil, err
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}
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return &responses.SubscriptionStatsResponse{
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TotalSubscriptions: stats["total_subscriptions"].(int64),
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TotalRevenue: stats["total_revenue"].(float64),
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}, nil
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}
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// GetMySubscriptionStats 获取我的订阅统计信息
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// 业务流程：1. 获取用户订阅统计 2. 构建响应数据
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func (s *SubscriptionApplicationServiceImpl) GetMySubscriptionStats(ctx context.Context, userID string) (*responses.SubscriptionStatsResponse, error) {
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stats, err := s.productSubscriptionService.GetUserSubscriptionStats(ctx, userID)
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if err != nil {
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return nil, err
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}
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return &responses.SubscriptionStatsResponse{
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TotalSubscriptions: stats["total_subscriptions"].(int64),
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TotalRevenue: stats["total_revenue"].(float64),
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}, nil
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}
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// convertToSubscriptionInfoResponse 转换为订阅信息响应
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func (s *SubscriptionApplicationServiceImpl) convertToSubscriptionInfoResponse(subscription *entities.Subscription) *responses.SubscriptionInfoResponse {
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// 查询用户信息
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var userInfo *responses.UserSimpleResponse
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if subscription.UserID != "" {
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user, err := s.userRepo.GetByIDWithEnterpriseInfo(context.Background(), subscription.UserID)
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if err == nil {
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companyName := "未知公司"
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if user.EnterpriseInfo != nil {
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companyName = user.EnterpriseInfo.CompanyName
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}
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userInfo = &responses.UserSimpleResponse{
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ID: user.ID,
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CompanyName: companyName,
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Phone: user.Phone,
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}
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}
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}
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var productResponse *responses.ProductSimpleResponse
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if subscription.Product != nil {
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productResponse = s.convertToProductSimpleResponse(subscription.Product)
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}
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return &responses.SubscriptionInfoResponse{
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ID: subscription.ID,
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UserID: subscription.UserID,
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ProductID: subscription.ProductID,
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Price: subscription.Price.InexactFloat64(),
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User: userInfo,
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Product: productResponse,
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APIUsed: subscription.APIUsed,
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CreatedAt: subscription.CreatedAt,
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UpdatedAt: subscription.UpdatedAt,
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}
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}
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// convertToProductSimpleResponse 转换为产品简单信息响应
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func (s *SubscriptionApplicationServiceImpl) convertToProductSimpleResponse(product *entities.Product) *responses.ProductSimpleResponse {
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var categoryResponse *responses.CategorySimpleResponse
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if product.Category != nil {
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categoryResponse = s.convertToCategorySimpleResponse(product.Category)
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}
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return &responses.ProductSimpleResponse{
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ID: product.ID,
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OldID: product.OldID,
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Name: product.Name,
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Code: product.Code,
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Description: product.Description,
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Price: product.Price.InexactFloat64(),
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Category: categoryResponse,
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IsPackage: product.IsPackage,
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}
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}
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// convertToCategorySimpleResponse 转换为分类简单信息响应
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func (s *SubscriptionApplicationServiceImpl) convertToCategorySimpleResponse(category *entities.ProductCategory) *responses.CategorySimpleResponse {
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if category == nil {
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return nil
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}
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return &responses.CategorySimpleResponse{
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ID: category.ID,
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Name: category.Name,
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}
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}
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