package model

import (
	"errors"
	"fmt"
	"html"
	"html/template"
	"regexp"
	"strings"
	"time"
)

type Status struct {
	Id        int64
	User      string
	Content   string
	Face      string
	CreatedAt time.Time
}

var urlRegexp = regexp.MustCompile(`https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)`)

func (s Status) ContentDisplay() string {
	content := html.EscapeString(s.Content)
	if urlRegexp.MatchString(s.Content) {
		matches := urlRegexp.FindAllStringSubmatch(s.Content, -1)
		for _, m := range matches {
			url := m[0]
			content = strings.Replace(content, url, fmt.Sprintf("<a href=\"%s\" target=\"_blank\">%s</a>", url, url), 1)
		}
	}
	return content
}

func (s Status) ContentHtml() template.HTML {
	return template.HTML(s.ContentDisplay())
}

func (s Status) Validate() error {
	if len(s.Content) == 0 {
		return errors.New("content is empty")
	}
	return nil
}

func (s Status) Date() string {
	return s.CreatedAt.Format("2006-01-02")
}

func (s Status) TimeAgo() string {
	// Taken from flounder.online <3
	// https://github.com/alexwennerberg/flounder
	d := time.Since(s.CreatedAt)
	if d.Seconds() < 60 {
		seconds := int(d.Seconds())
		if seconds == 1 {
			return "1 second ago"
		}
		return fmt.Sprintf("%d seconds ago", seconds)
	} else if d.Minutes() < 60 {
		minutes := int(d.Minutes())
		if minutes == 1 {
			return "1 minute ago"
		}
		return fmt.Sprintf("%d minutes ago", minutes)
	} else if d.Hours() < 24 {
		hours := int(d.Hours())
		if hours == 1 {
			return "1 hour ago"
		}
		return fmt.Sprintf("%d hours ago", hours)
	} else {
		days := int(d.Hours()) / 24
		if days == 1 {
			return "1 day ago"
		}
		return fmt.Sprintf("%d days ago", days)
	}
}