reroute on success/failure

router/handlers/results.go

@@ -3,20 +3,145 @@ package handlers
 import (
 	"html/template"
 	"net/http"
+	"strconv"
+	"strings"
 )
 
 type ResultHandler struct {
 	Tmpl *template.Template
 }
 
+type SuccessData struct {
+	LevelName     string
+	Score         int
+	TargetRPS     int
+	AchievedRPS   int
+	TargetLatency int
+	ActualLatency float64
+	Availability  float64
+	Feedback      []string
+	LevelID       string
+}
+
+type FailureData struct {
+	LevelName     string
+	Reason        string
+	TargetRPS     int
+	AchievedRPS   int
+	TargetLatency int
+	ActualLatency float64
+	TargetAvail   float64
+	ActualAvail   float64
+	FailedReqs    []string
+	LevelID       string
+}
+
 func (r *ResultHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
-	data := struct {
+	// Default to success page for backward compatibility
-		Title string
+	data := SuccessData{
-	}{
+		LevelName:     "Demo Level",
-		Title: "Title",
+		Score:         85,
+		TargetRPS:     10000,
+		AchievedRPS:   10417,
+		TargetLatency: 200,
+		ActualLatency: 87,
+		Availability:  99.9,
+		Feedback:      []string{"All requirements met successfully!"},
+		LevelID:       "demo",
 	}
 
 	if err := r.Tmpl.ExecuteTemplate(w, "success.html", data); err != nil {
 		http.Error(w, "Template Error", http.StatusInternalServerError)
 	}
 }
+
+type SuccessHandler struct {
+	Tmpl *template.Template
+}
+
+func (h *SuccessHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	data := SuccessData{
+		LevelName:     req.URL.Query().Get("level"),
+		Score:         parseInt(req.URL.Query().Get("score"), 85),
+		TargetRPS:     parseInt(req.URL.Query().Get("targetRPS"), 10000),
+		AchievedRPS:   parseInt(req.URL.Query().Get("achievedRPS"), 10417),
+		TargetLatency: parseInt(req.URL.Query().Get("targetLatency"), 200),
+		ActualLatency: parseFloat(req.URL.Query().Get("actualLatency"), 87),
+		Availability:  parseFloat(req.URL.Query().Get("availability"), 99.9),
+		Feedback:      parseStringSlice(req.URL.Query().Get("feedback")),
+		LevelID:       req.URL.Query().Get("levelId"),
+	}
+
+	if data.LevelName == "" {
+		data.LevelName = "System Design Challenge"
+	}
+	if len(data.Feedback) == 0 {
+		data.Feedback = []string{"All requirements met successfully!"}
+	}
+
+	if err := h.Tmpl.ExecuteTemplate(w, "success.html", data); err != nil {
+		http.Error(w, "Template Error", http.StatusInternalServerError)
+	}
+}
+
+type FailureHandler struct {
+	Tmpl *template.Template
+}
+
+func (h *FailureHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	data := FailureData{
+		LevelName:     req.URL.Query().Get("level"),
+		Reason:        req.URL.Query().Get("reason"),
+		TargetRPS:     parseInt(req.URL.Query().Get("targetRPS"), 10000),
+		AchievedRPS:   parseInt(req.URL.Query().Get("achievedRPS"), 2847),
+		TargetLatency: parseInt(req.URL.Query().Get("targetLatency"), 200),
+		ActualLatency: parseFloat(req.URL.Query().Get("actualLatency"), 1247),
+		TargetAvail:   parseFloat(req.URL.Query().Get("targetAvail"), 99.9),
+		ActualAvail:   parseFloat(req.URL.Query().Get("actualAvail"), 87.3),
+		FailedReqs:    parseStringSlice(req.URL.Query().Get("failedReqs")),
+		LevelID:       req.URL.Query().Get("levelId"),
+	}
+
+	if data.LevelName == "" {
+		data.LevelName = "System Design Challenge"
+	}
+	if data.Reason == "" {
+		data.Reason = "performance"
+	}
+	if len(data.FailedReqs) == 0 {
+		data.FailedReqs = []string{"Latency exceeded target", "Availability below requirement"}
+	}
+
+	if err := h.Tmpl.ExecuteTemplate(w, "failure.html", data); err != nil {
+		http.Error(w, "Template Error", http.StatusInternalServerError)
+	}
+}
+
+// Helper functions
+func parseInt(s string, defaultValue int) int {
+	if s == "" {
+		return defaultValue
+	}
+	if val, err := strconv.Atoi(s); err == nil {
+		return val
+	}
+	return defaultValue
+}
+
+func parseFloat(s string, defaultValue float64) float64 {
+	if s == "" {
+		return defaultValue
+	}
+	if val, err := strconv.ParseFloat(s, 64); err == nil {
+		return val
+	}
+	return defaultValue
+}
+
+func parseStringSlice(s string) []string {
+	if s == "" {
+		return []string{}
+	}
+	// Split by pipe character for multiple values
+	return strings.Split(s, "|")
+}

router/handlers/simulation.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"strings"
 	"systemdesigngame/internal/design"
 	"systemdesigngame/internal/level"
 	"systemdesigngame/internal/simulation"
@@ -113,21 +114,18 @@ func (h *SimulationHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	response := SimulationResponse{
+	// Build redirect URL based on success/failure
-		Success:   true,
+	var redirectURL string
-		Metrics:   metrics,
+	if passed {
-		Timeline:  timeline,
+		// Success page
-		Passed:    passed,
+		redirectURL = buildSuccessURL(levelName, score, metrics, feedback, requestBody.LevelID)
-		Score:     score,
+	} else {
-		Feedback:  feedback,
+		// Failure page
-		LevelName: levelName,
+		redirectURL = buildFailureURL(levelName, metrics, feedback, requestBody.LevelID)
 	}
 
-	w.Header().Set("Content-Type", "application/json")
+	// Redirect to appropriate result page
-	if err := json.NewEncoder(w).Encode(response); err != nil {
+	http.Redirect(w, r, redirectURL, http.StatusSeeOther)
-		http.Error(w, "Failed to encode response", http.StatusInternalServerError)
-		return
-	}
 }
 
 // calculateMetrics computes key performance metrics from simulation snapshots
@@ -457,3 +455,96 @@ func min(a, b int) int {
 	}
 	return b
 }
+
+// buildSuccessURL creates a URL for the success page with simulation results
+func buildSuccessURL(levelName string, score int, metrics map[string]interface{}, feedback []string, levelID string) string {
+	baseURL := "/success"
+
+	// Get level data if available
+	var targetRPS, targetLatency int
+	var targetAvail float64
+	if levelID != "" {
+		if lvl, err := level.GetLevelByID(levelID); err == nil {
+			targetRPS = lvl.TargetRPS
+			targetLatency = lvl.MaxP95LatencyMs
+			targetAvail = lvl.RequiredAvailabilityPct
+		}
+	}
+
+	// Use defaults if level not found
+	if targetRPS == 0 {
+		targetRPS = 10000
+	}
+	if targetLatency == 0 {
+		targetLatency = 200
+	}
+	if targetAvail == 0 {
+		targetAvail = 99.9
+	}
+
+	params := []string{
+		fmt.Sprintf("level=%s", levelName),
+		fmt.Sprintf("score=%d", score),
+		fmt.Sprintf("targetRPS=%d", targetRPS),
+		fmt.Sprintf("achievedRPS=%d", int(metrics["throughput"].(float64))),
+		fmt.Sprintf("targetLatency=%d", targetLatency),
+		fmt.Sprintf("actualLatency=%.1f", metrics["latency_avg"].(float64)),
+		fmt.Sprintf("availability=%.1f", metrics["availability"].(float64)),
+		fmt.Sprintf("levelId=%s", levelID),
+	}
+
+	// Add feedback as pipe-separated values
+	if len(feedback) > 0 {
+		feedbackStr := strings.Join(feedback, "|")
+		params = append(params, fmt.Sprintf("feedback=%s", feedbackStr))
+	}
+
+	return baseURL + "?" + strings.Join(params, "&")
+}
+
+// buildFailureURL creates a URL for the failure page with simulation results
+func buildFailureURL(levelName string, metrics map[string]interface{}, feedback []string, levelID string) string {
+	baseURL := "/failure"
+
+	// Get level data if available
+	var targetRPS, targetLatency int
+	var targetAvail float64
+	if levelID != "" {
+		if lvl, err := level.GetLevelByID(levelID); err == nil {
+			targetRPS = lvl.TargetRPS
+			targetLatency = lvl.MaxP95LatencyMs
+			targetAvail = lvl.RequiredAvailabilityPct
+		}
+	}
+
+	// Use defaults if level not found
+	if targetRPS == 0 {
+		targetRPS = 10000
+	}
+	if targetLatency == 0 {
+		targetLatency = 200
+	}
+	if targetAvail == 0 {
+		targetAvail = 99.9
+	}
+
+	params := []string{
+		fmt.Sprintf("level=%s", levelName),
+		fmt.Sprintf("reason=performance"),
+		fmt.Sprintf("targetRPS=%d", targetRPS),
+		fmt.Sprintf("achievedRPS=%d", int(metrics["throughput"].(float64))),
+		fmt.Sprintf("targetLatency=%d", targetLatency),
+		fmt.Sprintf("actualLatency=%.1f", metrics["latency_avg"].(float64)),
+		fmt.Sprintf("targetAvail=%.1f", targetAvail),
+		fmt.Sprintf("actualAvail=%.1f", metrics["availability"].(float64)),
+		fmt.Sprintf("levelId=%s", levelID),
+	}
+
+	// Add failed requirements as pipe-separated values
+	if len(feedback) > 0 {
+		failedReqsStr := strings.Join(feedback, "|")
+		params = append(params, fmt.Sprintf("failedReqs=%s", failedReqsStr))
+	}
+
+	return baseURL + "?" + strings.Join(params, "&")
+}

router/router.go

@@ -16,6 +16,8 @@ func SetupRoutes(tmpl *template.Template) *http.ServeMux {
 
 	mux.Handle("/play/{levelId}", auth.RequireAuth(&handlers.PlayHandler{Tmpl: tmpl}))
 	mux.Handle("/simulate", auth.RequireAuth(&handlers.SimulationHandler{}))
+	mux.Handle("/success", auth.RequireAuth(&handlers.SuccessHandler{Tmpl: tmpl}))
+	mux.Handle("/failure", auth.RequireAuth(&handlers.FailureHandler{Tmpl: tmpl}))
 	mux.HandleFunc("/login", auth.LoginHandler)
 	mux.HandleFunc("/callback", auth.CallbackHandler)
 	mux.HandleFunc("/ws", handlers.Messages)

static/commands.js

@@ -285,8 +285,15 @@ export class RunSimulationCommand extends Command {
                 throw new Error(`HTTP ${response.status}: ${response.statusText}`);
             }
 
-            const result = await response.json();
+            // Check if response is a redirect (status 303)
+            if (response.redirected || response.status === 303) {
+                // Follow the redirect to the result page
+                window.location.href = response.url;
+                return;
+            }
 
+            // Fallback: try to parse as JSON for backward compatibility
+            const result = await response.json();
             console.log('result', result);
             if (result.passed && result.success) {
                 console.log('Simulation successful:', result);

static/failure.html

@@ -641,29 +641,35 @@
 
     <div class="failure-container">
         <h1 class="failure-title glitch" data-text="SYSTEM OVERLOAD" id="failureTitle">SYSTEM OVERLOAD</h1>
-        <p class="failure-subtitle" id="failureSubtitle">Your architecture couldn't handle the load</p>
+        <p class="failure-subtitle" id="failureSubtitle">{{.LevelName}} - Your architecture couldn't handle the load</p>
 
         <div class="failure-details">
             <div class="failure-reason" id="failureReason">
                 Critical system failure detected. Your design exceeded operational limits.
+                {{if .FailedReqs}}
+                <br><br>Failed requirements:
+                {{range .FailedReqs}}
+                <br>• {{.}}
+                {{end}}
+                {{end}}
             </div>
 
             <div class="failure-metrics">
                 <div class="metric-item">
                     <div class="metric-label">Target RPS</div>
-                    <div class="metric-value">10,000</div>
+                    <div class="metric-value">{{.TargetRPS | printf "%d"}}</div>
                 </div>
                 <div class="metric-item">
                     <div class="metric-label">Achieved RPS</div>
-                    <div class="metric-value exceeded">2,847</div>
+                    <div class="metric-value exceeded">{{.AchievedRPS | printf "%d"}}</div>
                 </div>
                 <div class="metric-item">
                     <div class="metric-label">Max Latency</div>
-                    <div class="metric-value">200ms</div>
+                    <div class="metric-value">{{.TargetLatency}}ms</div>
                 </div>
                 <div class="metric-item">
                     <div class="metric-label">Actual Latency</div>
-                    <div class="metric-value exceeded">1,247ms</div>
+                    <div class="metric-value exceeded">{{.ActualLatency | printf "%.0f"}}ms</div>
                 </div>
             </div>
 
@@ -672,6 +678,9 @@
                 <div class="error-line">[ERROR] Load balancer timeout after 30s</div>
                 <div class="error-line">[ERROR] Cache miss ratio: 89%</div>
                 <div class="error-line">[FATAL] System unresponsive - shutting down</div>
+                {{range .FailedReqs}}
+                <div class="error-line">[ERROR] {{.}}</div>
+                {{end}}
             </div>
         </div>
 
@@ -710,11 +719,20 @@
                 
                 // Hide recovery message after transition
                 setTimeout(() => {
+                    if (typeof recoveryMessage !== 'undefined') {
                         recoveryMessage.classList.remove('show');
+                    }
                 }, 3000);
             }, 1000);
         }, 15000);
 
+        // Add retry function
+        function retryLevel() {
+            const levelId = '{{.LevelID}}';
+            const retryUrl = levelId ? `/play/${levelId}?retry=true` : '/game?retry=true';
+            window.location.href = retryUrl;
+        }
+
         // Add some random glitch effects (only during failure state)
         function addRandomGlitch() {
             if (!document.body.classList.contains('recovering')) {

static/success.html

@@ -591,25 +591,25 @@ input[name="tab"] {
       <div style="max-width: 600px; width: 100%; background: var(--color-bg-component); border: 1px solid var(--color-border); border-radius: var(--radius-large); padding: 32px;">
         <h2 style="color: var(--color-text-accent); font-size: 32px; text-align: center; margin-top: 0;">🏆 Mission Accomplished</h2>
         <p style="text-align: center; font-size: 16px; color: var(--color-text-muted); margin-bottom: 32px;">
-          Your architecture scaled successfully and met all performance targets. Well done!
+          {{.LevelName}} completed successfully! Your architecture scaled and met all performance targets. Well done!
         </p>
 
         <div class="failure-metrics" style="display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px;">
           <div class="metric-item" style="background: var(--color-bg-dark); border: 1px solid var(--color-border); padding: 16px; border-radius: var(--radius-medium); text-align: center;">
             <div class="metric-label" style="color: var(--color-text-muted); margin-bottom: 6px;">Target RPS</div>
-            <div class="metric-value" style="font-size: 20px; font-weight: bold;">10,000</div>
+            <div class="metric-value" style="font-size: 20px; font-weight: bold;">{{.TargetRPS | printf "%d"}}</div>
           </div>
           <div class="metric-item" style="background: var(--color-bg-dark); border: 1px solid var(--color-border); padding: 16px; border-radius: var(--radius-medium); text-align: center;">
             <div class="metric-label" style="color: var(--color-text-muted); margin-bottom: 6px;">Achieved RPS</div>
-            <div class="metric-value" style="font-size: 20px; font-weight: bold; color: var(--color-text-accent);">10,417</div>
+            <div class="metric-value" style="font-size: 20px; font-weight: bold; color: var(--color-text-accent);">{{.AchievedRPS | printf "%d"}}</div>
           </div>
           <div class="metric-item" style="background: var(--color-bg-dark); border: 1px solid var(--color-border); padding: 16px; border-radius: var(--radius-medium); text-align: center;">
             <div class="metric-label" style="color: var(--color-text-muted); margin-bottom: 6px;">Max Latency</div>
-            <div class="metric-value" style="font-size: 20px; font-weight: bold;">200ms</div>
+            <div class="metric-value" style="font-size: 20px; font-weight: bold;">{{.TargetLatency}}ms</div>
           </div>
           <div class="metric-item" style="background: var(--color-bg-dark); border: 1px solid var(--color-border); padding: 16px; border-radius: var(--radius-medium); text-align: center;">
             <div class="metric-label" style="color: var(--color-text-muted); margin-bottom: 6px;">Actual Latency</div>
-            <div class="metric-value" style="font-size: 20px; font-weight: bold; color: var(--color-text-accent);">87ms</div>
+            <div class="metric-value" style="font-size: 20px; font-weight: bold; color: var(--color-text-accent);">{{.ActualLatency | printf "%.0f"}}ms</div>
           </div>
         </div>
 
@@ -618,6 +618,9 @@ input[name="tab"] {
           <div>[INFO] Load balancer handled traffic with 0% errors</div>
           <div>[INFO] Cache hit ratio: 97%</div>
           <div>[SUCCESS] SLA met - all objectives achieved</div>
+          {{range .Feedback}}
+          <div>[SUCCESS] {{.}}</div>
+          {{end}}
         </div>
 
         <div class="action-buttons" style="display: flex; justify-content: center; gap: 16px; margin-top: 32px;">
@@ -636,8 +639,10 @@ input[name="tab"] {
         const btn = document.getElementById('retry-button');
         btn.textContent = '⏳ Reloading...';
         btn.disabled = true;
+        const levelId = '{{.LevelID}}';
+        const retryUrl = levelId ? `/play/${levelId}?retry=true` : '/game?retry=true';
         setTimeout(() => {
-          window.location.href = '/game?retry=true';
+          window.location.href = retryUrl;
         }, 1500);
       }