52 lines
1.0 KiB
Go
52 lines
1.0 KiB
Go
// For more tutorials: https://blog.learngoprogramming.com
|
|
//
|
|
// Copyright © 2018 Inanc Gumus
|
|
// Learn Go Programming Course
|
|
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
|
|
//
|
|
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
)
|
|
|
|
// summarize prints the parsing results.
|
|
//
|
|
// it prints the errors and returns if there are any.
|
|
//
|
|
// --json flag encodes to json and prints.
|
|
func summarize(sum *summary, errors ...error) {
|
|
if errs(errors...) {
|
|
return
|
|
}
|
|
|
|
const (
|
|
head = "%-30s %10s %20s\n"
|
|
val = "%-30s %10d %20d\n"
|
|
)
|
|
|
|
fmt.Printf(head, "DOMAIN", "VISITS", "TIME SPENT")
|
|
fmt.Println(strings.Repeat("-", 65))
|
|
|
|
for next, cur := sum.iterator(); next(); {
|
|
r := cur()
|
|
fmt.Printf(val, r.domain, r.visits, r.timeSpent)
|
|
}
|
|
|
|
t := sum.totals()
|
|
fmt.Printf("\n"+val, "TOTAL", t.visits, t.timeSpent)
|
|
}
|
|
|
|
// this variadic func simplifies the multiple error handling
|
|
func errs(errs ...error) (wasErr bool) {
|
|
for _, err := range errs {
|
|
if err != nil {
|
|
fmt.Printf("> Err: %s\n", err)
|
|
wasErr = true
|
|
}
|
|
}
|
|
return
|
|
}
|