From 67fedd7153362edef3f4c77eb97e18e64a4a2606 Mon Sep 17 00:00:00 2001
From: WoodenMaiden <yann.pomie@laposte.net>
Date: Wed, 20 Mar 2024 16:43:58 +0100
Subject: [PATCH] feat: Run function route

---
 database/functionState.go | 14 ++++++---
 routes/runFunction.go     | 60 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+), 4 deletions(-)
 create mode 100644 routes/runFunction.go

diff --git a/database/functionState.go b/database/functionState.go
index a446f73..d1e322b 100644
--- a/database/functionState.go
+++ b/database/functionState.go
@@ -1,14 +1,20 @@
 package database
 
 import (
-	"gorm.io/gorm"
 	"github.com/google/uuid"
+	"gorm.io/gorm"
 )
 
 type FunctionState struct {
 	gorm.Model
-	ID uuid.UUID `gorm:"primarykey;type:uuid;default:gen_random_uuid()"`
-	Code string
-	Status string
+	ID      uuid.UUID `json:"id", gorm:"primarykey;type:uuid;default:gen_random_uuid()"`
+	Code    string `json:"code"`
+	Status  string `json:"status"`
+	Address string `json:"address"`
+	Port    uint16 `json:"port"`
 	// OwnerID
 }
+
+func (FunctionState) TableName() string {
+	return "function_state"
+}
diff --git a/routes/runFunction.go b/routes/runFunction.go
new file mode 100644
index 0000000..81a0ed8
--- /dev/null
+++ b/routes/runFunction.go
@@ -0,0 +1,60 @@
+package routes
+
+import (
+	"errors"
+	"log"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+
+	"github.com/do4-2022/grobuzin/database"
+)
+
+func (c *Controller) RunFunction(ctx *gin.Context) {
+    fnID, err := uuid.Parse(ctx.Param("id"))
+	
+	var fnBody any; // because the body is entirely defined by the user, we just forward it to the function
+
+	if err := ctx.BindJSON(&fnBody); err != nil {
+		ctx.JSON(400, gin.H{"error": "Could not parse function body"})
+		return
+	}
+
+	if err != nil {
+		ctx.JSON(400, gin.H{"error": "Invalid function ID"})
+		return
+	}
+
+	var fn database.FunctionState
+	err = c.DB.Where(&database.FunctionState{ID: fnID}).First(&fn).Error
+
+	if (err != nil && errors.Is(err, gorm.ErrRecordNotFound)) {
+		log.Println("Waiting for new function to be ready")
+
+		for tries := 0 ; tries < 5; tries++ {
+			if !errors.Is(err, gorm.ErrRecordNotFound) {
+				ctx.JSON(500, gin.H{"error": err.Error()})
+				return
+			} else {
+				log.Println("Function", fn.ID, "is not ready yet... Retrying")
+
+				time.Sleep(100 * time.Millisecond)
+				err = c.DB.Where(&database.FunctionState{ID: fnID}).First(&fn).Error
+			}
+
+			if fn.Status == "Ready" { 
+				log.Println("Function", fn.ID, "is ready")
+
+				break 
+			};
+
+		}
+	}
+
+	ctx.JSON(200, fn)
+	// forward the body to fn.Address:fn.Port
+	// define this
+	// ctx.JSON(200, gin.H{"stdout": "stdout", "stderr": "stderr", "status": "status"})
+}
\ No newline at end of file