package utils

import (
	"fmt"
	"math/rand"
	"strings"
	"time"
)

var nameAdjectives = []string{"waddly", "frosty", "noot", "sleepy", "tuxedo", "briny", "squeaky", "blizzard", "pebble", "slippy"}
var nameNouns = []string{"penguin", "gentoo", "rockhopper", "emperor", "macaroni", "chinstrap", "skua", "krill", "iceberg", "fishstick"}

func SuggestName() string {
	return nameAdjectives[rand.Intn(len(nameAdjectives))] + "-" + nameNouns[rand.Intn(len(nameNouns))]
}

func Sanitize(raw string) string {
	return strings.ReplaceAll(strings.TrimSpace(raw), "\n", " ")
}

func SanitizeName(raw string) string {
	clean := strings.ToLower(Sanitize(raw))
	clean = strings.ReplaceAll(clean, " ", "-")
	if len(clean) > 24 {
		clean = clean[:24]
	}
	return clean
}

func FormatSince(t time.Time) string {
	d := time.Since(t)
	switch {
	case d < time.Minute && d.Seconds() < 20:
		return "just now"
	case d < time.Hour:
		return fmt.Sprintf("%d minutes ago", int(d.Minutes()))
	case d < 24*time.Hour:
		return fmt.Sprintf("%d hours ago", int(d.Hours()))
	default:
		return fmt.Sprintf("%d days ago", int(d.Hours()/24))
	}
}

func Truncate(s string, n int) string {
	if len(s) > n {
		return s[:n]
	}
	return s
}