feat: status api

internal/router/status.go

@@ -0,0 +1,37 @@
+package router
+
+import (
+	"errors"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	e "github.com/iliadenisov/galaxy/internal/error"
+	"github.com/iliadenisov/galaxy/internal/game"
+	"github.com/iliadenisov/galaxy/internal/model/rest"
+)
+
+func StatusHandler(c *gin.Context) {
+	g, err := game.LoadState(param())
+
+	if err == nil {
+		c.JSON(http.StatusOK, rest.Status{
+			Turn:    g.Age,
+			Players: len(g.Race),
+		})
+		return
+	}
+
+	var ge = new(e.GenericError)
+
+	if errors.As(err, ge) {
+		switch ge.Code {
+		case e.ErrGameNotInitialized:
+			c.Status(http.StatusNotImplemented)
+		default:
+			c.JSON(http.StatusInternalServerError, gin.H{"generic_error": ge.Error(), "code": ge.Code})
+		}
+		return
+	}
+
+	c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+}