getStatistics handler, db-interface and ts API

backend/internal/handlers/reports/Statistics.go

@@ -0,0 +1,50 @@
+package reports
+
+import (
+	db "ttime/internal/database"
+
+	"github.com/gofiber/fiber/v2"
+	"github.com/gofiber/fiber/v2/log"
+	"github.com/golang-jwt/jwt/v5"
+)
+
+func GetStatistics(c *fiber.Ctx) error {
+	// Extract the necessary parameters from the token
+	user := c.Locals("user").(*jwt.Token)
+	claims := user.Claims.(jwt.MapClaims)
+	username := claims["name"].(string)
+
+	// Extract project name from query parameters
+	projectName := c.Query("projectName")
+
+	log.Info(username, " trying to get statistics for project: ", projectName)
+
+	if projectName == "" {
+		log.Info("Missing project name")
+		return c.Status(400).SendString("Missing project name")
+	}
+
+	// If the user is not a project manager, they can't view statistics
+	pm, err := db.GetDb(c).IsProjectManager(username, projectName)
+	if err != nil {
+		log.Info("Error checking if user is project manager:", err)
+		return c.Status(500).SendString(err.Error())
+	}
+
+	if !pm {
+		log.Info("Unauthorized access")
+		return c.Status(403).SendString("Unauthorized access")
+	}
+
+	// Retrieve statistics for the project from the database
+	statistics, err := db.GetDb(c).ReportStatistics(username, projectName)
+	if err != nil {
+		log.Error("Error getting statistics for project:", projectName, ":", err)
+		return c.Status(500).SendString(err.Error())
+	}
+
+	log.Info("Returning statistics")
+	// Return the retrieved statistics
+	return c.JSON(statistics)
+
+}