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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