new backend changes

new-backend/models/submission.go

@@ -0,0 +1,28 @@
+package models
+
+import (
+	"time"
+)
+
+// CodeSubmission represents a code submission for execution
+type CodeSubmission struct {
+	ID          string    `json:"id"`
+	Code        string    `json:"code"`
+	Language    string    `json:"language"`
+	Input       string    `json:"input,omitempty"`
+	Status      string    `json:"status"` // "queued", "running", "completed", "failed"
+	QueuedAt    time.Time `json:"queuedAt"`
+	StartedAt   time.Time `json:"startedAt,omitempty"`
+	CompletedAt time.Time `json:"completedAt,omitempty"`
+	Output      string    `json:"output"`
+	Memory      string    `json:"memory,omitempty"`     // Memory usage statistics
+	CPU         string    `json:"cpu,omitempty"`        // CPU usage statistics
+	ExecutionTime float64 `json:"executionTime,omitempty"` // Execution time in seconds
+}
+
+// SubmissionResponse is the response returned after submitting code
+type SubmissionResponse struct {
+	ID      string `json:"id"`
+	Status  string `json:"status"`
+	Message string `json:"message"`
+}