refactor backend packages and global db service

backend/internal/logic/projects/handlers.go

@@ -0,0 +1,78 @@
+package projects
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+	"senlinai-agent/backend/internal/logic/auth"
+)
+
+type Handler struct {
+	service *Service
+}
+
+func NewHandler(service *Service) *Handler {
+	return &Handler{service: service}
+}
+
+func (h *Handler) Register(router gin.IRouter) {
+	router.POST("/projects", h.createProject)
+	router.GET("/projects", h.listProjects)
+	router.GET("/projects/:id/dashboard", h.dashboard)
+}
+
+func (h *Handler) createProject(c *gin.Context) {
+	userID, ok := auth.CurrentUserID(c)
+	if !ok {
+		c.JSON(http.StatusUnauthorized, gin.H{"error": "missing current user"})
+		return
+	}
+	var input struct {
+		Name        string `json:"name"`
+		Description string `json:"description"`
+	}
+	if err := c.ShouldBindJSON(&input); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid request"})
+		return
+	}
+	project, err := h.service.CreateProject(userID, input.Name, input.Description)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	c.JSON(http.StatusCreated, project)
+}
+
+func (h *Handler) listProjects(c *gin.Context) {
+	userID, ok := auth.CurrentUserID(c)
+	if !ok {
+		c.JSON(http.StatusUnauthorized, gin.H{"error": "missing current user"})
+		return
+	}
+	projects, err := h.service.ListProjects(userID)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to list projects"})
+		return
+	}
+	c.JSON(http.StatusOK, projects)
+}
+
+func (h *Handler) dashboard(c *gin.Context) {
+	userID, ok := auth.CurrentUserID(c)
+	if !ok {
+		c.JSON(http.StatusUnauthorized, gin.H{"error": "missing current user"})
+		return
+	}
+	projectID, err := strconv.ParseUint(c.Param("id"), 10, 64)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid project id"})
+		return
+	}
+	dashboard, err := h.service.Dashboard(userID, uint(projectID))
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to load dashboard"})
+		return
+	}
+	c.JSON(http.StatusOK, dashboard)
+}