forked from JonasFranzDEV/mensabot
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132 lines
3.3 KiB
132 lines
3.3 KiB
package main
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import (
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"fmt"
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"os"
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"os/signal"
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"strings"
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"syscall"
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"time"
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"github.com/bwmarrin/discordgo"
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"github.com/kiliankoe/openmensa"
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)
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var (
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canteen *openmensa.Canteen
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emojis = map[string][]string{
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":pizza:": {"pizza"},
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":hotdog:": {"wurst", "würstchen", "hotdog"},
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":fries:": {"pommes"},
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":hamburger:": {"burger"},
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":fish:": {"lachs", "filet", "fisch", "kabeljau", "hering", "makrele", "sardine", "schellfisch", "seezunge"},
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":apple:": {"apfel", "äpfel"},
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":poultry_leg:": {"hähnchen"},
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":meat_on_bone:": {"schnitzel", "steak", "schwein", "huhn", "geflügel"},
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":spaghetti:": {"nudel", "spaghetti", "pasta"},
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":bread:": {"brot", "brötchen"},
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":rice:": {"reis"},
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}
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)
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func main() {
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token := os.Getenv("MENSABOT_TOKEN")
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if len(token) == 0 || token == "token" {
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println("Please add token as environment variable: MENSABOT_TOKEN.")
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return
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}
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dg, err := discordgo.New(fmt.Sprintf("Bot %s", token))
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if err != nil {
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fmt.Println("error creating dicord bot: ", err)
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}
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canteens, err := openmensa.GetCanteens(175)
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if err != nil {
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fmt.Println("error getting mensa: ", err)
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return
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}
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dg.AddHandler(messageCreate)
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canteen = canteens[0]
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// Open a websocket connection to Discord and begin listening.
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err = dg.Open()
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if err != nil {
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fmt.Println("error opening connection,", err)
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return
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}
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// Wait here until CTRL-C or other term signal is received.
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fmt.Println("Bot is now running. Press CTRL-C to exit.")
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sc := make(chan os.Signal, 1)
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signal.Notify(sc, syscall.SIGINT, syscall.SIGTERM, os.Interrupt, os.Kill)
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<-sc
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// Cleanly close down the Discord session.
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dg.Close()
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}
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func messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
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// Ignore all messages created by the bot itself
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// This isn't required in this specific example but it's a good practice.
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if m.Author.ID == s.State.User.ID {
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return
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}
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if m.Content == "!mensa" {
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date := time.Now()
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switch date.Weekday() {
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case time.Saturday:
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date = date.AddDate(0, 0, -1)
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break
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case time.Sunday:
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date = date.AddDate(0, 0, -2)
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break
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}
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sendMealsForDate(s, date, m.ChannelID)
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}
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}
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func sendMealsForDate(s *discordgo.Session, t time.Time, channel string) {
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meals, err := canteen.GetMeals(t)
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if err != nil {
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s.ChannelMessageSend(channel, ":angry: an error occured")
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return
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}
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var messages = make([]*discordgo.MessageEmbedField, len(meals))
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var footer = ""
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for i, meal := range meals {
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prefix := ""
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outer:
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for emoji, keywords := range emojis {
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for _, keyword := range keywords {
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if strings.Contains(strings.ToLower(meal.Name), keyword) {
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prefix += emoji
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continue outer
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}
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}
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}
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if len(prefix) > 0 {
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prefix += " "
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}
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messages[i] = &discordgo.MessageEmbedField{
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Name: prefix + meal.Name,
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Value: fmt.Sprintf("%.2f€", *meal.Prices.Students),
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}
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if len(meal.Notes) > 0 {
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footer += fmt.Sprintf("[%d] %s\n", i+1, strings.Join(meal.Notes, ", "))
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}
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}
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s.ChannelMessageSendComplex(channel, &discordgo.MessageSend{
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Embed: &discordgo.MessageEmbed{
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Title: fmt.Sprintf("**Menü vom %s**", t.Format("02.01.2006")),
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Fields: messages,
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Footer: &discordgo.MessageEmbedFooter{
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IconURL: "https://pbs.twimg.com/profile_images/643755515118505984/xzZMK7fU_400x400.png",
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Text: footer,
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},
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},
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})
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}
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