From 657f967a49e6f66a42fe76c19e1ed91ece0fcb9d Mon Sep 17 00:00:00 2001
From: Artyom Belousov <flygrounder@yandex.ru>
Date: Sat, 11 May 2019 14:01:40 +0300
Subject: [PATCH] Added VK part

---
 .gitignore     |  1 +
 main.go        | 11 +++++++++++
 vk/handlers.go | 18 ++++++++++++++++++
 vk/message.go  | 24 ++++++++++++++++++++++++
 vk/structs.go  | 11 +++++++++++
 5 files changed, 65 insertions(+)
 create mode 100644 vk/handlers.go
 create mode 100644 vk/message.go
 create mode 100644 vk/structs.go

diff --git a/.gitignore b/.gitignore
index e3a1c23..0360cc5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 mtg-price-vk
 */.swp
+vk/token.go
diff --git a/main.go b/main.go
index da29a2c..0a49521 100644
--- a/main.go
+++ b/main.go
@@ -1,4 +1,15 @@
 package main
 
+import (
+	"github.com/flygrounder/mtg-price-vk/vk"
+	"github.com/gin-gonic/gin"
+	"math/rand"
+	"time"
+)
+
 func main() {
+	rand.Seed(time.Now().UTC().UnixNano())
+	r := gin.Default()
+	r.POST("callback/message", vk.HandleMessage)
+	r.Run()
 }
diff --git a/vk/handlers.go b/vk/handlers.go
new file mode 100644
index 0000000..45f41a1
--- /dev/null
+++ b/vk/handlers.go
@@ -0,0 +1,18 @@
+package vk
+
+import (
+	"github.com/flygrounder/mtg-price-vk/cardsinfo"
+	"github.com/gin-gonic/gin"
+	"net/http"
+)
+
+func HandleMessage(c *gin.Context) {
+	defer c.String(http.StatusOK, "ok")
+	var req MessageRequest
+	c.BindJSON(&req)
+	if req.Secret != SECRET_KEY {
+		return
+	}
+	cardName := cardsinfo.GetOriginalName(req.Object.Body)
+	Message(req.Object.UserId, cardName)
+}
diff --git a/vk/message.go b/vk/message.go
new file mode 100644
index 0000000..2bc00ab
--- /dev/null
+++ b/vk/message.go
@@ -0,0 +1,24 @@
+package vk
+
+import (
+	"math/rand"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+)
+
+const VKURL = "https://api.vk.com/method/messages.send"
+
+func Message(userId int64, message string) {
+	randomId := rand.Int31()
+	params := []string{
+		"access_token=" + TOKEN,
+		"peer_id=" + strconv.FormatInt(userId, 10),
+		"message=" + url.QueryEscape(message),
+		"v=5.95",
+		"random_id=" + strconv.FormatInt(int64(randomId), 10),
+	}
+	paramString := strings.Join(params, "&")
+	http.Get(VKURL + "?" + paramString)
+}
diff --git a/vk/structs.go b/vk/structs.go
new file mode 100644
index 0000000..ee1ef27
--- /dev/null
+++ b/vk/structs.go
@@ -0,0 +1,11 @@
+package vk
+
+type MessageRequest struct {
+	Object UserMessage `json:"object"`
+	Secret string      `json:"secret"`
+}
+
+type UserMessage struct {
+	Body   string `json:"body"`
+	UserId int64  `json:"user_id"`
+}