sync

go.mod

@@ -0,0 +1,8 @@
+module paxpamir
+
+go 1.23.1
+
+require (
+	git.niplace.ru/XoxJlopeZi4BB/imageutils v0.0.0-20241224134015-2709034fc322
+	github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1
+)

go.sum

@@ -0,0 +1,4 @@
+git.niplace.ru/XoxJlopeZi4BB/imageutils v0.0.0-20241224134015-2709034fc322 h1:jefEdqKZ/JKnmky9LipaS/UH0phAhz/56ORHIjmHREk=
+git.niplace.ru/XoxJlopeZi4BB/imageutils v0.0.0-20241224134015-2709034fc322/go.mod h1:QieEgSGk9ZYISDv5XyMMktQXi/2qlTmdHuxTlt1Xfq8=
+github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1 h1:wG8n/XJQ07TmjbITcGiUaOtXxdrINDz1b0J1w0SzqDc=
+github.com/go-telegram-bot-api/telegram-bot-api/v5 v5.5.1/go.mod h1:A2S0CWkNylc2phvKXWBBdD3K0iGnDBGbzRpISP2zBl8=

market.go

@@ -0,0 +1,152 @@
+package market
+
+import (
+	"bytes"
+	"fmt"
+	"image"
+	"io"
+	"log"
+	"math/rand"
+	"net/http"
+	"time"
+
+	"git.niplace.ru/XoxJlopeZi4BB/imageutils"
+	tg "github.com/go-telegram-bot-api/telegram-bot-api/v5"
+)
+
+func shuffle[S ~[]E, E any](a S) {
+	rand.Seed(time.Now().UnixNano())
+	for i := len(a) - 1; i > 0; i-- {
+		j := rand.Intn(i + 1)
+		a[i], a[j] = a[j], a[i]
+	}
+}
+
+func takeOne[S ~[]T, T any](s S) T {
+	v := s[0]
+	s = s[1:]
+	return v
+}
+
+var ShuffledCardPool []int = func(n int) []int {
+	arr := make([]int, n, n)
+	for i := 0; i < n; i++ {
+		arr[i] = i + 1
+	}
+	shuffle(arr)
+	return arr
+}(116)
+
+var RupeesOnCards []int = func() (ns []int) {
+	rand.Seed(time.Now().UnixNano())
+	for i := 0; i < 2; i++ {
+		ns = append(ns, rand.Intn(4))
+	}
+	return
+}()
+
+var LinkFormat string = "https://rally-the-troops.com/" +
+	"pax-pamir/cards/card_%d.jpg"
+
+type Button struct {
+	Text string `json:"text"`
+	Data string `json:"data"`
+}
+
+type ListEntry struct {
+	Images  []string
+	Buttons []Button
+}
+
+func Buttons(b []Button) tg.InlineKeyboardMarkup {
+	return tg.NewInlineKeyboardMarkup(
+		func() []tg.InlineKeyboardButton {
+			var row []tg.InlineKeyboardButton
+			for _, Button := range b {
+				row = append(row,
+					tg.NewInlineKeyboardButtonData(
+						Button.Text,
+						Button.Data,
+					),
+				)
+			}
+			return row
+		}(),
+	)
+}
+
+func HandleCommand(update tg.Update, bot *tg.BotAPI) {
+	maxCost := 5
+	for i := 0; i <= maxCost; i++ {
+		var (
+			msg tg.PhotoConfig
+			buf *bytes.Buffer
+			img image.Image
+		)
+
+		for j := 0; j < 2; j++ {
+			cardNum := ShuffledCardPool[0]
+			ShuffledCardPool = ShuffledCardPool[1:]
+			resp, err := http.Get(fmt.Sprintf(LinkFormat,
+				cardNum))
+			if err != nil {
+				log.Println("http GET error:", err)
+			}
+			defer resp.Body.Close()
+
+			io.Copy(buf, resp.Body)
+		}
+		msg = tg.NewPhoto(
+			update.Message.Chat.ID,
+			tg.FileBytes(buf.Bytes()),
+		)
+		buttons := []Button{}
+		for j := 0; j < 2; j++ {
+			text := func() (s string) {
+				s = fmt.Sprintf("buy for %d", i)
+				if RupeesOnCard[j] >= i {
+					s += fmt.Sprintf(", get 1")
+				}
+				return
+			}()
+			buttons := append(buttons, Button{Text: text})
+		}
+		_, err := bot.Send(msg) // get response message
+		if err != nil {
+			log.Println("failed to send message on command:",
+				err)
+		}
+		log.Print("message sent. id:", responseMsg.MessageID)
+	}
+}
+
+func HandleUpdate(update tg.Update, bot *tg.BotAPI) {
+	switch {
+	case update.Message != nil:
+		log.Print("new message. id:", update.Message.MessageID)
+		if update.Message.IsCommand() {
+			HandleCommand(update, bot)
+		} else {
+			log.Println("message is not a command:\n",
+				update.Message.Text)
+		}
+	case update.CallbackQuery != nil:
+		ConsumeCallback(update, bot)
+	}
+	return
+}
+
+func ConsumeCallback(update tg.Update, bot *tg.BotAPI) {
+	updateMsg := update.CallbackQuery.Message
+	log.Print("new CallbackQuery. id:", updateMsg.MessageID)
+	callback := tg.NewCallback(
+		update.CallbackQuery.ID,
+		update.CallbackQuery.Data)
+
+	// Recieve callback
+	req, err := bot.Request(callback)
+	if err != nil {
+		log.Println("failed on request:", err)
+	}
+	log.Print("request sent. response:", req.Description)
+}