Merge pull request 'kanban dashboard refactor' (#21) from kanban into develop

Reviewed-on: https://repo.ravanertebat.com/TM/tm_back/pulls/21
Reviewed-by: Hadi Barzegar <barzagarhadi@gmail.com>

pkg/gorules/client.go

@@ -0,0 +1,85 @@
+package gorules
+
+import (
+	"context"
+	"errors"
+	"strings"
+	"time"
+	"tm/pkg/logger"
+
+	"repo.ravanertebat.com/k.khodayari/gorulessdk"
+)
+
+const (
+	showAvailableStatusAction = gorulessdk.ShowAvailableStatus
+)
+
+// Config contains GoRules client configuration.
+type Config struct {
+	BaseURL string
+	Token   string
+	Timeout time.Duration
+}
+
+// StatusWithCategory contains status and category values returned by GoRules.
+type StatusWithCategory struct {
+	Status         string `json:"status"`
+	StatusCategory string `json:"status_category"`
+}
+
+// Client evaluates available statuses against GoRules.
+type Client interface {
+	EvaluateAvailableStatuses(ctx context.Context, currentStatus string, ruleID string) ([]StatusWithCategory, error)
+}
+
+type sdkClient struct {
+	client *gorulessdk.Client
+	logger logger.Logger
+}
+
+// New creates a new GoRules client.
+func New(cfg Config, log logger.Logger) (Client, error) {
+	if strings.TrimSpace(cfg.BaseURL) == "" {
+		return nil, errors.New("gorules base url is required")
+	}
+	if strings.TrimSpace(cfg.Token) == "" {
+		return nil, errors.New("gorules token is required")
+	}
+
+	timeout := cfg.Timeout
+	if timeout <= 0 {
+		timeout = 10 * time.Second
+	}
+
+	client, err := gorulessdk.NewClient(cfg.BaseURL, cfg.Token, gorulessdk.WithTimeout(timeout))
+	if err != nil {
+		return nil, err
+	}
+
+	return &sdkClient{
+		client: client,
+		logger: log,
+	}, nil
+}
+
+func (s *sdkClient) EvaluateAvailableStatuses(ctx context.Context, currentStatus string, ruleID string) ([]StatusWithCategory, error) {
+	input := gorulessdk.Input{
+		Status: currentStatus,
+		Action: showAvailableStatusAction,
+	}
+
+	resp, err := s.client.Evaluate(ctx, ruleID, &input)
+	if err != nil {
+		return nil, err
+	}
+
+	available := resp.AvailableStatuses()
+	statuses := make([]StatusWithCategory, 0, len(available))
+	for _, item := range available {
+		statuses = append(statuses, StatusWithCategory{
+			Status:         item.Status,
+			StatusCategory: item.Category,
+		})
+	}
+	return statuses, nil
+}