Initial commit

app/internal/handlers/admin_dashboard.go

@@ -0,0 +1,81 @@
+package handlers
+
+import (
+	"log"
+	"net/http"
+
+	"github.com/patel-mann/poll-system/app/internal/models"
+	"github.com/patel-mann/poll-system/app/internal/utils"
+)
+
+
+func AdminDashboardHandler(w http.ResponseWriter, r *http.Request) {
+	currentAdminID := r.Context().Value("user_id").(int)
+
+	role, _ := r.Context().Value("uesr_role").(int)
+
+    var volunteerCount int
+	var totalDonations float64
+	var validatedCount int
+	var housesLeftPercent float64
+
+	// 1. Count volunteers assigned to this admin
+	err := models.DB.QueryRow(`
+		SELECT COUNT(av.volunteer_id) 
+		FROM admin_volunteers av
+		WHERE av.admin_id = $1 AND av.is_active = TRUE;
+	`, currentAdminID).Scan(&volunteerCount)
+	if err != nil {
+		log.Println("Volunteer query error:", err)
+		volunteerCount = 0 // Set default value on error
+	}
+
+	// 2. Total donations from polls
+	err = models.DB.QueryRow(`
+		SELECT COALESCE(SUM(amount_donated), 0) 
+		FROM poll;
+	`).Scan(&totalDonations)
+	if err != nil {
+		log.Println("Donation query error:", err)
+		totalDonations = 0 // Set default value on error
+	}
+
+	// 3. Count validated addresses
+	err = models.DB.QueryRow(`
+		SELECT COUNT(*) 
+		FROM address_database
+		WHERE visited_validated = TRUE;
+	`).Scan(&validatedCount)
+	if err != nil {
+		log.Println("Validated addresses query error:", err)
+		validatedCount = 0 // Set default value on error
+	}
+
+	// 4. Calculate percentage of houses left to visit
+	err = models.DB.QueryRow(`
+		SELECT 
+			CASE 
+				WHEN COUNT(*) = 0 THEN 0
+				ELSE ROUND(
+					(COUNT(*) FILTER (WHERE visited_validated = FALSE)::numeric / COUNT(*)::numeric) * 100, 2
+				)
+			END
+		FROM address_database;
+	`).Scan(&housesLeftPercent)
+	if err != nil {
+		log.Println("Houses left query error:", err)
+		housesLeftPercent = 0 // Set default value on error
+	}
+
+	utils.Render(w, "dashboard/dashboard.html", map[string]interface{}{
+		"Title":              "Admin Dashboard",
+		"IsAuthenticated":    true,
+		"VolunteerCount":     volunteerCount,
+		"TotalDonations":     totalDonations,
+		"ValidatedCount":     validatedCount,
+		"HousesLeftPercent":  housesLeftPercent,
+		"ShowAdminNav": 	  true,
+		"Role": 			  role,
+		"ActiveSection":      "dashboard",
+	})
+}