Add report user command

model/campaign_reports.go

@@ -0,0 +1,30 @@
+package model
+
+import (
+	"fmt"
+	"os"
+	"text/tabwriter"
+)
+
+func (c *Campaign) PrintUserReport() {
+	userTickets := map[string]int{}
+	for _, ticket := range c.Tickets {
+		user := ticket.GithubAssignee
+		if user != "" {
+			if count, ok := userTickets[user]; ok {
+				userTickets[user] = count+1
+			} else {
+				userTickets[user] = 1
+			}
+		}
+	}
+
+	fmt.Println("User report:\n")
+	w := tabwriter.NewWriter(os.Stdout, 3, 0, 3, ' ', tabwriter.AlignRight)
+	fmt.Fprintln(w, "GitHub username\tTickets closed\t")
+	for user, count := range userTickets {
+		fmt.Fprintf(w, "%s\t%d\t\n", user, count)
+	}
+	w.Flush()
+	fmt.Println()
+}