mirror of https://github.com/velour/catbase.git
149 lines
2.9 KiB
Go
149 lines
2.9 KiB
Go
// © 2013 the CatBase Authors under the WTFPL. See AUTHORS for the list of authors.
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package reminder
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import (
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"fmt"
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"sort"
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"strings"
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"sync"
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"time"
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"github.com/velour/catbase/bot"
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"github.com/velour/catbase/bot/msg"
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)
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type ReminderPlugin struct {
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Bot bot.Bot
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reminders []*Reminder
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mutex *sync.Mutex
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timer *time.Timer
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}
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type Reminder struct {
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from string
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who string
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what string
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when time.Time
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channel string
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}
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type reminderSlice []*Reminder
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func (s reminderSlice) Len() int {
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return len(s)
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}
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func (s reminderSlice) Less(i, j int) bool {
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return s[i].when.Before(s[j].when)
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}
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func (s reminderSlice) Swap(i, j int) {
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s[i], s[j] = s[j], s[i]
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}
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func New(bot bot.Bot) *ReminderPlugin {
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dur, _ := time.ParseDuration("1h")
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timer := time.NewTimer(dur)
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timer.Stop()
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plugin := &ReminderPlugin{
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Bot: bot,
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reminders: []*Reminder{},
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mutex: &sync.Mutex{},
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timer: timer,
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}
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go reminderer(plugin)
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return plugin
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}
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func reminderer(p *ReminderPlugin) {
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//welcome to the reminderererererererererer
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for {
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fmt.Println()
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fmt.Println("waiting...")
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fmt.Println()
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<-p.timer.C
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p.mutex.Lock()
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reminder := p.reminders[0]
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if len(p.reminders) >= 2 {
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p.reminders = p.reminders[1:]
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p.timer.Reset(p.reminders[0].when.Sub(time.Now()))
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} else {
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p.reminders = []*Reminder{}
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}
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p.mutex.Unlock()
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message := fmt.Sprintf("Hey %s, %s wanted you to be reminded: %s", reminder.who, reminder.from, reminder.what)
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p.Bot.SendMessage(reminder.channel, message)
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}
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}
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func (p *ReminderPlugin) Message(message msg.Message) bool {
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channel := message.Channel
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from := message.User.Name
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parts := strings.Fields(message.Body)
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if len(parts) > 5 {
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if strings.ToLower(parts[0]) == "remind" {
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who := parts[1]
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dur, err := time.ParseDuration(parts[3])
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if err != nil {
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p.Bot.SendMessage(channel, "Easy cowboy, not sure I can parse that duration.")
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return true
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}
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when := time.Now().Add(dur)
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what := strings.Join(parts[4:], " ")
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response := fmt.Sprintf("Sure %s, I'll remind %s.", from, who)
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p.Bot.SendMessage(channel, response)
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p.mutex.Lock()
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p.timer.Stop()
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p.reminders = append(p.reminders, &Reminder{
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from: from,
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who: who,
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what: what,
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when: when,
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channel: channel,
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})
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sort.Sort(reminderSlice(p.reminders))
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p.timer.Reset(p.reminders[0].when.Sub(time.Now()))
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p.mutex.Unlock()
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return true
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}
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}
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return false
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}
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func (p *ReminderPlugin) Help(channel string, parts []string) {
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p.Bot.SendMessage(channel, "Pester someone with a reminder. Try \"remind <user> in <duration> message\".\n\nUnsure about duration syntax? Check https://golang.org/pkg/time/#ParseDuration")
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}
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func (p *ReminderPlugin) Event(kind string, message msg.Message) bool {
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return false
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}
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func (p *ReminderPlugin) BotMessage(message msg.Message) bool {
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return false
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}
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func (p *ReminderPlugin) RegisterWeb() *string {
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return nil
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}
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