From c9876c40703b6723f94eea5638a0779c0550b2d7 Mon Sep 17 00:00:00 2001
From: terminaldweller <thabogre@gmail.com>
Date: Mon, 22 Feb 2021 00:44:09 +0330
Subject: the price end point works, the telegram bot is only echo though

---
 Dockerfile          |  11 ++++
 docker-compose.yaml |  18 +++++++
 hived.go            | 150 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 run.sh              |   2 +
 4 files changed, 181 insertions(+)
 create mode 100644 Dockerfile
 create mode 100644 docker-compose.yaml
 create mode 100644 hived.go
 create mode 100755 run.sh

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..2848f6c
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,11 @@
+FROM alpine:3.13 as builder
+
+RUN apk update && apk upgrade
+RUN apk add go git
+RUN go get -u github.com/go-telegram-bot-api/telegram-bot-api
+COPY *.go /hived/
+RUN cd /hived && go build
+
+FROM alpine:3.13
+COPY --from=builder /hived/hived /hived/
+ENTRYPOINT ["/hived/hived"]
diff --git a/docker-compose.yaml b/docker-compose.yaml
new file mode 100644
index 0000000..8ac47b4
--- /dev/null
+++ b/docker-compose.yaml
@@ -0,0 +1,18 @@
+version: "3.8"
+services:
+  hived:
+    image: hived
+    build:
+      context: ./
+    secrets:
+      - tg_bot_token
+    networks:
+      - hivednet
+    restart: unless-stopped
+    ports:
+      - "8008:8008"
+networks:
+  hivednet:
+secrets:
+  tg_bot_token:
+    file: ./tgtoken.json
diff --git a/hived.go b/hived.go
new file mode 100644
index 0000000..14fa696
--- /dev/null
+++ b/hived.go
@@ -0,0 +1,150 @@
+package main
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/url"
+
+	"github.com/go-telegram-bot-api/telegram-bot-api"
+)
+
+var flagPort = flag.String("port", "8008", "determined the port the sercice runs on")
+var flagTgTokenFile = flag.String("tgtokenfile", "/run/secrets/tg_bot_token", "determines the location of the telegram bot token file")
+
+const cryptocomparePriceURL = "https://min-api.cryptocompare.com/data/price?"
+
+func getTgToken() string {
+	tgTokenJsonBytes, err := ioutil.ReadFile(*flagTgTokenFile)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	type TgToken struct {
+		Token string `json:"token"`
+	}
+
+	var tgToken TgToken
+
+	err = json.Unmarshal(tgTokenJsonBytes, &tgToken)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return tgToken.Token
+}
+
+func runTgBot() {
+	botToken := getTgToken()
+	bot, err := tgbotapi.NewBotAPI(botToken)
+	if err != nil {
+		log.Panic(err)
+	}
+
+	bot.Debug = true
+
+	log.Printf("Authorized on account %s", bot.Self.UserName)
+
+	u := tgbotapi.NewUpdate(0)
+	u.Timeout = 60
+
+	updates, err := bot.GetUpdatesChan(u)
+	if err != nil {
+		log.Panic(err)
+	}
+
+	for update := range updates {
+		if update.Message == nil {
+			continue
+		}
+
+		log.Printf("[%s] %s", update.Message.From.UserName, update.Message.Text)
+
+		msg := tgbotapi.NewMessage(update.Message.Chat.ID, update.Message.Text)
+		msg.ReplyToMessageID = update.Message.MessageID
+
+		bot.Send(msg)
+	}
+}
+
+func sendGetToCryptoCompare(ccurl, name, unit string) (float64, string, error) {
+	params := "fsym=" + url.QueryEscape(name) + "&" +
+		"tsyms=" + url.QueryEscape(unit)
+	path := ccurl + params
+	fmt.Println(path)
+	resp, err := http.Get(path)
+	if err != nil {
+		log.Fatal(err)
+		return 0., "", err
+	}
+	defer resp.Body.Close()
+
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		log.Fatal(err)
+		return 0., "", err
+	}
+
+	jsonBody := make(map[string]float64)
+	err = json.Unmarshal(body, &jsonBody)
+	if err != nil {
+		log.Fatal(err)
+		return 0., "", err
+	}
+
+	fmt.Println(string(body))
+
+	return jsonBody[unit], unit, nil
+}
+
+//TODO
+func healthHandler(w http.ResponseWriter, r *http.Request) {
+}
+
+func cryptoHandler(w http.ResponseWriter, r *http.Request) {
+	if r.URL.Path != "/crypto" {
+		http.Error(w, "404 not found.", http.StatusNotFound)
+		return
+	}
+
+	if r.Method != "GET" {
+		http.Error(w, "Method is not supported.", http.StatusNotFound)
+	}
+
+	var name string
+	var unit string
+	params := r.URL.Query()
+	for key, value := range params {
+		switch key {
+		case "name":
+			name = value[0]
+		case "unit":
+			unit = value[0]
+		default:
+		}
+	}
+
+	price, unit, err := sendGetToCryptoCompare(cryptocomparePriceURL, name, unit)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	json.NewEncoder(w).Encode(map[string]interface{}{"name": price, "unit": unit})
+}
+
+func startServer() {
+	http.HandleFunc("/crypto", cryptoHandler)
+	http.HandleFunc("/health", healthHandler)
+
+	if err := http.ListenAndServe(":"+*flagPort, nil); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func main() {
+	go runTgBot()
+	startServer()
+}
diff --git a/run.sh b/run.sh
new file mode 100755
index 0000000..4031990
--- /dev/null
+++ b/run.sh
@@ -0,0 +1,2 @@
+#!/usr/bin/env sh
+docker build -t hived ./ && docker-compose up
-- 
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