package paymentconfig

import "context"

type Service struct {
	repo *Repository
}

func NewService(repo *Repository) *Service {
	return &Service{repo: repo}
}

// List 获取配置列表
func (s *Service) List(ctx context.Context, query ListQuery) (*ListResponse, error) {
	items, total, err := s.repo.List(ctx, query)
	if err != nil {
		return nil, err
	}

	page := query.Page
	if page < 1 {
		page = 1
	}
	pageSize := query.PageSize
	if pageSize < 1 {
		pageSize = 20
	}

	return &ListResponse{
		Items:    items,
		Total:    total,
		Page:     page,
		PageSize: pageSize,
	}, nil
}

// Get 获取单个配置
func (s *Service) Get(ctx context.Context, id uint64, includeSecret bool, actorID uint64, meta AuditMeta) (*ConfigDTO, error) {
	return s.repo.FindByID(ctx, id, includeSecret, actorID, meta)
}

// ExportBackup 导出支付配置备份。
func (s *Service) ExportBackup(ctx context.Context, actorID uint64, meta AuditMeta) (*ExportBackup, error) {
	return s.repo.ExportBackup(ctx, actorID, meta)
}

// ImportBackup 导入支付配置备份。
func (s *Service) ImportBackup(ctx context.Context, backup ExportBackup, actorID uint64, meta AuditMeta) (*ImportBackupResult, error) {
	return s.repo.ImportBackup(ctx, backup, actorID, meta)
}

// Create 创建配置
func (s *Service) Create(ctx context.Context, req CreateRequest, actorID uint64, meta AuditMeta) (*ConfigDTO, error) {
	return s.repo.Create(ctx, req, actorID, meta)
}

// Update 更新配置
func (s *Service) Update(ctx context.Context, id uint64, req UpdateRequest, actorID uint64, meta AuditMeta) (*ConfigDTO, error) {
	return s.repo.Update(ctx, id, req, actorID, meta)
}

// Delete 删除配置
func (s *Service) Delete(ctx context.Context, id uint64, actorID uint64, meta AuditMeta) error {
	return s.repo.Delete(ctx, id, actorID, meta)
}

// GetDefaultConfig 获取默认配置（用于支付模块调用）
func (s *Service) GetDefaultConfig(ctx context.Context, provider string) (*ConfigDTO, error) {
	config, err := s.repo.FindDefault(ctx, provider)
	if err != nil {
		return nil, err
	}
	dto, err := s.repo.toDTO(*config, true) // 包含密钥
	if err != nil {
		return nil, err
	}
	return &dto, nil
}