package session

import (
	"context"
	"fmt"

	"github.com/Tencent/WeKnora/internal/types"
)

// Only call with the server-saved uploads or owned temporary documents prepared
// by prepareQARequest. Text and client-supplied URLs are not ownership evidence.
func (h *Handler) bindUploadedMessageResources(ctx context.Context, message *types.Message) error {
	if h.resourceCatalog == nil || message == nil {
		return nil
	}
	tenantID, _ := types.TenantIDFromContext(ctx)
	refs := make(map[string]struct{})
	for _, image := range message.Images {
		refs[image.URL] = struct{}{}
	}
	for _, attachment := range message.Attachments {
		refs[attachment.URL] = struct{}{}
	}
	for ref := range refs {
		if _, ok := types.ParseResourcePath(ref); !ok {
			continue
		}
		resource, err := h.resourceCatalog.Resolve(ctx, ref)
		if err != nil {
			return err
		}
		if resource == nil || resource.TenantID != tenantID || message.ID == "" {
			return fmt.Errorf("invalid uploaded message resource")
		}
		if err := h.resourceCatalog.Bind(ctx, ref, types.ResourceOwnerMessage, message.ID, types.ResourceRelationAttachment); err != nil {
			return err
		}
	}
	return nil
}