Add Notification Filters for Seen and Priority

- Introduced new optional fields in the SearchForm for filtering notifications by 'seen' status and 'priority', enhancing the flexibility of notification retrieval.
- Updated the GetNotifications method in the notification service to accommodate the new filters, ensuring they are included in the query parameters.
- Enhanced the notification client to support the new filters in API requests, improving the overall functionality of the notification system.
- Updated API documentation with Swagger comments to reflect the new query parameters, ensuring clarity for API consumers.

pkg/notification/client.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"strings"
 	"time"
 )
 
@@ -206,6 +207,8 @@ func (c *Client) GetNotifications(ctx context.Context, req *GetNotificationsRequ
 			"event_type": req.EventType,
 			"type":       req.Type,
 			"user_id":    req.UserID,
+			"seen":       req.Seen,
+			"priority":   req.Priority,
 			"base_url":   c.config.BaseURL,
 		})
 	}
@@ -354,16 +357,19 @@ func (c *Client) buildQueryParams(req *GetNotificationsRequest) string {
 	if req.PerPage > 0 {
 		params = append(params, fmt.Sprintf("per_page=%d", req.PerPage))
 	}
+	if req.Seen != nil {
+		params = append(params, fmt.Sprintf("seen=%t", *req.Seen))
+	}
+	if req.Priority != "" {
+		params = append(params, fmt.Sprintf("priority=%s", req.Priority))
+	}
 
 	// Join parameters with &
 	if len(params) == 0 {
 		return ""
 	}
 
-	result := params[0]
-	for i := 1; i < len(params); i++ {
-		result += "&" + params[i]
-	}
+	result := strings.Join(params, "&")
 
 	return result
 }

pkg/notification/entities.go

@@ -187,6 +187,8 @@ type GetNotificationsRequest struct {
 	EventType string `json:"event_type,omitempty" valid:"optional"`
 	Type      string `json:"type,omitempty" valid:"optional"`
 	UserID    string `json:"user_id,omitempty" valid:"optional"`
+	Seen      *bool  `json:"seen,omitempty" valid:"optional"`
+	Priority  string `json:"priority,omitempty" valid:"optional"`
 	Page      int    `json:"page,omitempty" valid:"optional"`
 	PerPage   int    `json:"per_page,omitempty" valid:"optional"`
 }