fix: stars count rendered server-side with 30min cache, no client-side API calls

internal/handlers/cv_helpers.go

@@ -1,11 +1,14 @@
 package handlers
 
 import (
+	"encoding/json"
 	"fmt"
 	"log"
+	"net/http"
 	"os"
 	"path/filepath"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/go-git/go-git/v5"
@@ -327,9 +330,12 @@ func (h *CVHandler) prepareTemplateData(lang string) (map[string]interface{}, er
 		)
 	}
 
-	// Process projects for dynamic dates
+	// Process projects for dynamic dates and fetch GitHub stars
 	for i := range cv.Projects {
 		processProjectDates(&cv.Projects[i], lang)
+		if cv.Projects[i].OpenSource && cv.Projects[i].GitRepoUrl != "" {
+			cv.Projects[i].Stars = getGitHubStars(cv.Projects[i].GitRepoUrl)
+		}
 	}
 
 	// Split skills between left and right sidebars
@@ -383,6 +389,65 @@ func (h *CVHandler) prepareTemplateData(lang string) (map[string]interface{}, er
 	return data, nil
 }
 
+// ==============================================================================
+// GITHUB STARS
+// ==============================================================================
+
+var (
+	starsCache   = make(map[string]starsCacheEntry)
+	starsCacheMu sync.RWMutex
+)
+
+type starsCacheEntry struct {
+	count   int
+	fetched time.Time
+}
+
+// getGitHubStars fetches the star count for a GitHub repo URL, cached for 30 minutes.
+func getGitHubStars(repoURL string) int {
+	// Extract "owner/repo" from URL
+	repoURL = strings.TrimSuffix(repoURL, "/")
+	parts := strings.SplitN(repoURL, "github.com/", 2)
+	if len(parts) != 2 {
+		return 0
+	}
+	repo := parts[1]
+
+	// Check cache
+	starsCacheMu.RLock()
+	if entry, ok := starsCache[repo]; ok && time.Since(entry.fetched) < 30*time.Minute {
+		starsCacheMu.RUnlock()
+		return entry.count
+	}
+	starsCacheMu.RUnlock()
+
+	// Fetch from GitHub API
+	client := &http.Client{Timeout: 3 * time.Second}
+	resp, err := client.Get(fmt.Sprintf("https://api.github.com/repos/%s", repo))
+	if err != nil {
+		return 0
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != 200 {
+		return 0
+	}
+
+	var result struct {
+		Stars int `json:"stargazers_count"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+		return 0
+	}
+
+	// Cache the result
+	starsCacheMu.Lock()
+	starsCache[repo] = starsCacheEntry{count: result.Stars, fetched: time.Now()}
+	starsCacheMu.Unlock()
+
+	return result.Stars
+}
+
 // ==============================================================================
 // COOKIE HELPERS
 // ==============================================================================

internal/models/cv.go

@@ -112,6 +112,7 @@ type Project struct {
 	// Computed fields (not stored in JSON)
 	ComputedStartDate string `json:"-"` // Dynamically calculated from git repo or system
 	DynamicDate       string `json:"-"` // Current date for ongoing projects
+	Stars             int    `json:"-"` // GitHub star count (fetched at runtime)
 }
 
 type Award struct {

internal/models/cv/cv.go

@@ -117,6 +117,7 @@ type Project struct {
 	// Computed fields (not stored in JSON)
 	ComputedStartDate string `json:"-"` // Dynamically calculated from git repo or system
 	DynamicDate       string `json:"-"` // Current date for ongoing projects
+	Stars             int    `json:"-"` // GitHub star count (fetched at runtime)
 }
 
 type Award struct {