batch-sale

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/Wine-Server.iml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="Go" enabled="true" />
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/dataSources.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="local-wine" uuid="6f7b2da5-92ba-4ca4-a101-04b73448071d">
+      <driver-ref>mysql.8</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>com.mysql.cj.jdbc.Driver</jdbc-driver>
+      <jdbc-url>jdbc:mysql://localhost:3306/wine</jdbc-url>
+      <working-dir>$ProjectFileDir$</working-dir>
+    </data-source>
+    <data-source source="LOCAL" name="hm-root" uuid="197a63b4-c095-47da-bf5b-aeec28ce284d">
+      <driver-ref>mysql.8</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>com.mysql.cj.jdbc.Driver</jdbc-driver>
+      <jdbc-url>jdbc:mysql://122.112.224.199:3306</jdbc-url>
+      <working-dir>$ProjectFileDir$</working-dir>
+    </data-source>
+    <data-source source="LOCAL" name="hm-wine" uuid="e0722947-3cd2-413c-a044-4c233b7f5104">
+      <driver-ref>mysql.8</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>com.mysql.cj.jdbc.Driver</jdbc-driver>
+      <jdbc-url>jdbc:mysql://122.112.224.199:3306/wine</jdbc-url>
+      <working-dir>$ProjectFileDir$</working-dir>
+    </data-source>
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/Wine-Server.iml" filepath="$PROJECT_DIR$/.idea/Wine-Server.iml" />
+    </modules>
+  </component>
+</project>

config.json

@@ -0,0 +1,21 @@
+{
+  "release": false,
+  "server_addr": "0.0.0.0:3080",
+  "time_format": "2006-01-02 15:04:05",
+
+  "mysql_host": "122.112.224.199",
+  "mysql_port": 3306,
+  "mysql_user": "wine",
+  "mysql_pass": "Wine-Mysql.122",
+  "mysql_database": "wine",
+
+  "redis_host": "122.112.224.199",
+  "redis_port": 6379,
+  "redis_pass": "hm123456",
+  "redis_database": 1,
+
+  "wx_merchant_acc": "1658095373",
+  "wx_api_cert_seq": "34931049643AF4C82415D882E6FF2875E2F5F1B7",
+  "wx_api_cert_path": "./utils/cert/apiclient_key.pem",
+  "wx_api_v3_key": "0HangZhou1GuiZhou2LiQuanGuNiang3"
+}

docker-compose.yml

@@ -0,0 +1,15 @@
+version: "3"
+
+services:
+  WineServer:
+    image: ubuntu:latest
+    container_name: WineServer
+    restart: unless-stopped
+    working_dir: /srv
+    ports:
+      - 4090:4090
+    environment:
+      - TZ=Asia/Shanghai
+    volumes:
+      - ./:/srv
+    command: ["./main", "config.json"]

go.mod

@@ -0,0 +1,43 @@
+module Wine-Server
+
+go 1.20
+
+require (
+	github.com/gin-contrib/cors v1.4.0
+	github.com/gin-gonic/gin v1.9.1
+	github.com/go-sql-driver/mysql v1.7.1
+	github.com/redis/go-redis/v9 v9.1.0
+)
+
+require (
+	github.com/bytedance/sonic v1.10.0 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d // indirect
+	github.com/chenzhuoyu/iasm v0.9.0 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.15.3 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/gorilla/websocket v1.5.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
+	github.com/leodido/go-urn v1.2.4 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.11 // indirect
+	github.com/wechatpay-apiv3/wechatpay-go v0.2.18 // indirect
+	github.com/wenzhenxi/gorsa v0.0.0-20230530123828-0320cce15d81 // indirect
+	golang.org/x/arch v0.5.0 // indirect
+	golang.org/x/crypto v0.13.0 // indirect
+	golang.org/x/net v0.15.0 // indirect
+	golang.org/x/sys v0.12.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,151 @@
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handlers/buyer/router.go

@@ -0,0 +1,7 @@
+package buyer
+
+import "github.com/gin-gonic/gin"
+
+func Router(route *gin.Engine)  {
+	// worker := route.Group("buyer")
+}

handlers/buyer/worker.go

@@ -0,0 +1 @@
+package buyer

handlers/manager/router.go

@@ -0,0 +1,11 @@
+package manager
+
+import (
+	"github.com/gin-gonic/gin"
+)
+
+func Router(route *gin.Engine) {
+	manager := route.Group("manager")
+	manager.POST("/key", PublicKeyHandler)
+	manager.POST("/test", EncryptTestHandler)
+}

handlers/manager/spliter.go

@@ -0,0 +1,60 @@
+package manager
+
+import (
+	"Wine-Server/utils"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
+)
+
+func managerConnected(mid string, conn *websocket.Conn) {
+	utils.ManagerLock.Lock()
+	utils.ManagerWss[mid] = conn
+	utils.ManagerLock.Unlock()
+	fmt.Printf("manager[%s] connected\n", mid)
+}
+
+func managerDisconnect(mid string) {
+	utils.ManagerLock.Lock()
+	delete(utils.ManagerWss, mid)
+	utils.ManagerLock.Unlock()
+	fmt.Printf("manager[%s] disconnected\n", mid)
+}
+
+func SocketHandler(ctx *gin.Context) {
+	conn, err := utils.UpgradeHttp2Ws.Upgrade(ctx.Writer, ctx.Request, nil)
+	if err != nil {
+		ctx.JSON(utils.HttpError, utils.Fail("can't establish socket connect"))
+		return
+	}
+	var ok bool
+	var mid string
+	if mid, ok = ctx.GetQuery("token"); ok {
+		if _, err = utils.Redis.Get(ctx, mid).Bool(); err != nil {  // better to get pub,pri secret here
+			// token is invalid
+		} else {
+			// token is valid
+		}
+	} else {
+		// no token
+	}
+
+	managerConnected(mid, conn)
+	for {
+		var msg utils.WsMsg
+		err = conn.ReadJSON(&msg)
+		if err != nil {
+			managerDisconnect(mid)
+			return
+		}
+		switch msg.Event {
+		case "openGate":
+			break
+		case "orderFinished":
+			break
+		default:
+			_ = conn.WriteJSON(utils.WsError("unrecognized event"))
+			break
+		}
+	}
+}

handlers/manager/worker.go

@@ -0,0 +1,64 @@
+package manager
+
+import (
+	"Wine-Server/utils"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/redis/go-redis/v9"
+)
+
+func PublicKeyHandler(ctx *gin.Context) {
+	ctx.JSON(utils.HttpOk, utils.Success(utils.JsonType{"public": utils.ClientPub, "private": utils.ClientPri}))
+}
+
+func EncryptTestHandler(ctx *gin.Context) {
+	type Param struct {
+		User string `json:"user"`
+		Pass string `json:"pass"`
+	}
+	var param Param
+	err := ctx.ShouldBind(&param)
+	if err != nil {
+		fmt.Println(err.Error())
+		ctx.JSON(utils.HttpOk, utils.Fail("param error 1"))
+		return
+	}
+
+	param.Pass, err = utils.Decrypt(param.Pass)
+	if err != nil {
+		fmt.Println(err.Error())
+		ctx.JSON(utils.HttpOk, utils.Fail("param error 3"))
+		return
+	}
+
+	fmt.Printf("user: %s, password: %s\n", param.User, param.Pass)
+	ctx.JSON(utils.HttpOk, utils.Success(param.Pass))
+}
+
+func RegisterHandler(ctx *gin.Context) {
+	_, ok := ctx.GetPostForm("device")
+	if !ok {
+		ctx.JSON(utils.HttpOk, utils.Fail("param lost."))
+	}
+	token := utils.RandomString(16, utils.AlphaNumPatten)
+	key := fmt.Sprintf("Seller-%s", token)
+Diff:
+	for {
+		res, err := utils.Redis.Get(ctx, key).Result()
+		switch {
+		case err == redis.Nil:
+			break Diff
+		case err != nil:
+			ctx.JSON(utils.HttpOk, utils.Fail("获取Token失败"))
+			return
+		case res == "":
+			break Diff
+		}
+		token = utils.RandomString(16, utils.AlphaNumPatten)
+		key = fmt.Sprintf("Seller-%s", token)
+	}
+	utils.Redis.Set(ctx, key, 1, 0)
+
+	ctx.Header("Token", token)
+	ctx.JSON(utils.HttpOk, utils.Success(token))
+}

handlers/seller/router.go

@@ -0,0 +1,9 @@
+package seller
+
+import "github.com/gin-gonic/gin"
+
+func Router(route *gin.Engine) {
+	seller := route.Group("seller")
+	seller.GET("/version", VersionHandler)
+	seller.GET("/socket/:seq", SocketHandler)
+}

handlers/seller/spliter.go

@@ -0,0 +1,90 @@
+package seller
+
+import (
+	"Wine-Server/utils"
+	"Wine-Server/utils/tables"
+	"database/sql"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
+)
+
+func sellerConnected(seq string, conn *websocket.Conn) *tables.DeviceTable {
+	device := tables.DeviceTable{Id: seq}
+	err := device.Get()
+	if err == sql.ErrNoRows { // insert new device
+		err = device.Insert()
+		if err != nil {
+			_ = conn.WriteJSON(utils.WsError("New device join failed"))
+			return nil
+		}
+		_ = device.Get()
+	} else { // update last time
+		device.Last = utils.TimeNow()
+		err = device.Update(utils.JsonType{"last": device.Last})
+		if err != nil {
+			_ = conn.WriteJSON(utils.WsError("Update last active time failed"))
+			return nil
+		}
+	}
+
+	utils.SellerLock.Lock()
+	utils.SellerWss[seq] = conn
+	utils.SellerLock.Unlock()
+	fmt.Printf("device connected: %s\n", seq)
+	return &device
+}
+
+func sellerDisconnect(seq string) {
+	utils.SellerLock.Lock()
+	delete(utils.SellerWss, seq)
+	utils.SellerLock.Unlock()
+	fmt.Printf("device[%s] disconnected\n", seq)
+}
+
+func SocketHandler(ctx *gin.Context) {
+	conn, err := utils.UpgradeHttp2Ws.Upgrade(ctx.Writer, ctx.Request, nil)
+	if err != nil {
+		ctx.JSON(utils.HttpError, utils.Fail("can't establish socket connect"))
+		return
+	}
+	seq := ctx.Param("seq")  //ctx.DefaultQuery("seq", "")
+	if seq == "" {
+		_ = conn.WriteJSON(utils.WsError("device seq is required"))
+		return
+	}
+
+	device := sellerConnected(seq, conn)
+	if device == nil {
+		return
+	}
+	infoOfDevice(device, conn)
+	for {
+		var msg utils.WsMsg
+		err = conn.ReadJSON(&msg)
+		if err != nil {
+			sellerDisconnect(seq)
+			return
+		}
+		switch msg.Event {
+		case "setLocation":
+			updateLocation(device, conn, msg.Data)
+			break
+		case "getQrcode":
+			getQrcode(conn, msg.Data)
+			break
+		case "checkAuthCode":
+			checkAuthCode(conn, device.Id, msg.Data)
+			break
+		case "openResult":
+			openResult(conn, msg.Data)
+			break
+		case "workFinished":
+			workFinished(conn, msg.Data)
+			break
+		default:
+			_ = conn.WriteJSON(utils.WsError("unrecognized event"))
+			break
+		}
+	}
+}

handlers/seller/worker.go

@@ -0,0 +1,191 @@
+package seller
+
+import (
+	"Wine-Server/utils"
+	"Wine-Server/utils/tables"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
+)
+
+func VersionHandler(ctx *gin.Context) {
+	version := tables.VersionTable{}
+	err := version.GetLatest()
+	if err != nil {
+		ctx.JSON(utils.HttpError, utils.Fail("Get latest version failed"))
+		return
+	}
+	ctx.JSON(utils.HttpOk, utils.Success(version))
+}
+
+func infoOfDevice(device *tables.DeviceTable, conn *websocket.Conn) {
+	_ = conn.WriteJSON(utils.WsEvent("locationResult", utils.JsonType{
+		"val": device.Addr, "close": false,
+	}))
+
+	var err error
+	for i := 0; i < 4; i++ {
+		err = device.Wines[i].Get()
+		if err != nil {
+			_ = conn.WriteJSON(utils.WsError("Query wine info failed"))
+			return
+		}
+	}
+	_ = conn.WriteJSON(utils.WsEvent("wineResult", device.Wines))
+
+	var advList []tables.AdvertiseTable
+	advList, err = tables.AdvListAll()
+	if err != nil {
+		_ = conn.WriteJSON(utils.WsError("Query advertise failed"))
+		return
+	}
+	_ = conn.WriteJSON(utils.WsEvent("advResult", advList))
+
+	var runParams []tables.ParamsTable
+	runParams, err = tables.ParamsListAll()
+	if err != nil {
+		_ = conn.WriteJSON(utils.WsError("Query running params failed"))
+		return
+	}
+	_ = conn.WriteJSON(utils.WsEvent("runParamResult", runParams))
+	_ = conn.WriteJSON(utils.WsEvent("initFinish", nil))
+}
+
+func updateLocation(device *tables.DeviceTable, conn *websocket.Conn, data any) {
+	if data == "" {
+		_ = conn.WriteJSON(utils.WsError("Blank address is not allowed"))
+		return
+	}
+	if device.Addr != data {
+		err := device.Update(utils.JsonType{"addr": data})
+		if err != nil {
+			_ = conn.WriteJSON(utils.WsError("Update location failed"))
+			return
+		}
+		_ = conn.WriteJSON(utils.WsEvent("locationResult", utils.JsonType{
+			"val": data, "close": true,
+		}))
+		return
+	}
+	_ = conn.WriteJSON(utils.WsError("same location"))
+}
+
+type wineParam struct {
+	Id     uint16 `json:"id"`
+	Weight int    `json:"weight"`
+}
+
+func getQrcode(conn *websocket.Conn, data any) {
+	var list []wineParam
+	err := utils.AnyTrans(data, &list)
+	if err != nil {
+		_ = conn.WriteJSON(utils.WsError("param error"))
+		return
+	}
+	sum := 0
+	for _, item := range list {
+		wine := tables.WineTable{Id: item.Id}
+		err = wine.Get()
+		if err != nil {
+			_ = conn.WriteJSON(utils.WsError(fmt.Sprintf("no such wine: %d", item.Id)))
+			return
+		}
+		sum += item.Weight * int(wine.Price)
+	}
+	fmt.Println(sum)
+	_ = conn.WriteJSON(utils.WsEvent("qrcodeOkayed", "/seller/icon/qrcode.svg"))
+}
+
+type authParam struct {
+	Type string `json:"type"`
+	Wid  string `json:"wid"`
+	Code string `json:"code"`
+}
+
+func checkAuthCode(conn *websocket.Conn, did string, data any) {
+	var param authParam
+	err := utils.AnyTrans(data, &param)
+	if err != nil {
+		_ = conn.WriteJSON(utils.WsError("params error"))
+		return
+	}
+	fmt.Printf("checkAuthCode: device[%s], code[%s]\n", did, data)
+	switch param.Type {
+	case "Changing":
+		// TODO: check redis `Change_${did}_${param.wid}` === param.code, query real work
+		_ = conn.WriteJSON(utils.WsEvent("authCodeResult", utils.JsonType{
+			"type": param.Type, "ok": true, "work": []utils.JsonType{
+				{
+					"cell": 1,
+					"old": utils.JsonType{"id": 13026, "name": "某一款酒名-1", "remain": 300},
+					"new": utils.JsonType{"id": 13026, "name": "某一款酒名-1", "remain": 15000},
+				},
+				{
+					"cell": 2,
+					"old": utils.JsonType{"id": 13027, "name": "某一款酒名-2", "remain": 286},
+					"new": utils.JsonType{"id": 13029, "name": "某一款酒名-3", "remain": 15000},
+				},
+				{
+					"cell": 3,
+					"old": utils.JsonType{"id": 13027, "name": "某一款酒名-2", "remain": 286},
+					"new": utils.JsonType{"id": 13029, "name": "某一款酒名-3", "remain": 15000},
+				},
+				{
+					"cell": 4,
+					"old": utils.JsonType{"id": 13027, "name": "某一款酒名-2", "remain": 286},
+					"new": utils.JsonType{"id": 13029, "name": "某一款酒名-3", "remain": 15000},
+				},
+			},
+		}))
+		break
+	case "Fixing":
+		// TODO: check redis `Fix_${did}_${param.wid}` === param.code
+		_ = conn.WriteJSON(utils.WsEvent("authCodeResult", utils.JsonType{
+			"type": param.Type, "ok": true,
+		}))
+		break
+	default:
+		_ = conn.WriteJSON(utils.WsError("unrecognized open type"))
+	}
+}
+
+type resultParam struct {
+	Type   string `json:"type"`
+	Wid    string `json:"wid"`
+	Result bool   `json:"result"`
+}
+
+func openResult(conn *websocket.Conn, data any) {
+	var param resultParam
+	err := utils.AnyTrans(data, &param)
+	if err != nil {
+		_ = conn.WriteJSON(utils.WsError("params error"))
+		return
+	}
+	if worker, win := utils.WorkerWss[param.Wid]; win {
+		_ = worker.WriteJSON(utils.WsEvent("openResult", utils.JsonType{
+			"type": param.Type, "result": param.Result,
+		}))
+		return
+	}
+	_ = conn.WriteJSON(utils.WsError("no such worker"))
+}
+
+type finishParam struct {
+	Type string `json:"type"`
+	Wid  string `json:"wid"`
+}
+
+func workFinished(conn *websocket.Conn, data any) {
+	var param finishParam
+	err := utils.AnyTrans(data, &param)
+	if err != nil {
+		_ = conn.WriteJSON(utils.WsError("params error"))
+		return
+	}
+	if worker, win := utils.WorkerWss[param.Wid]; win {
+		_ = worker.WriteJSON(utils.WsEvent("workFinished", param.Type))
+	} else {
+		_ = conn.WriteJSON(utils.WsError("no such worker"))
+	}
+}

handlers/setup.go

@@ -0,0 +1,96 @@
+package handlers
+
+import (
+	"Wine-Server/utils"
+	"Wine-Server/utils/tables"
+	"fmt"
+	"github.com/gin-contrib/cors"
+	"github.com/gin-gonic/gin"
+	"os"
+)
+
+type routeFn func(*gin.Engine)
+type createTableFn func() error
+
+type App struct {
+	router *gin.Engine
+	config *utils.Config
+}
+
+func lostHandler(ctx *gin.Context) {
+	ctx.JSON(utils.HttpNotFound, utils.Fail("api/resource not found"))
+}
+
+func loggerFormat(timeFmt string) gin.HandlerFunc {
+	return gin.LoggerWithFormatter(func(param gin.LogFormatterParams) string {
+		return fmt.Sprintf("[wine] %s - %s [%s %s %s] %s, %s %d %s: %s\n",
+			param.ClientIP,
+			param.TimeStamp.Format(timeFmt),
+			param.MethodColor(), param.Method, param.ResetColor(),
+			param.Path,
+			param.StatusCodeColor(), param.StatusCode, param.ResetColor(),
+			param.ErrorMessage,
+		)
+	})
+}
+
+func CreateApp(config *utils.Config) *App {
+	if config.WxMerchantAcc == "" {
+		fmt.Println("wx-pay-api config is null")
+		os.Exit(-1)
+	}
+	utils.WxMerchantAcc, utils.WxApiV3Key = config.WxMerchantAcc, config.WxApiV3Key
+	utils.WxApiCertSeq, utils.WxApiCertPath = config.WxApiCertSeq, config.WxApiCertPath
+
+	if config.Release {
+		gin.SetMode(gin.ReleaseMode)
+	} else {
+		gin.SetMode(gin.DebugMode)
+	}
+
+	router := gin.New()
+	err := router.SetTrustedProxies([]string{"127.0.0.1"})
+	if err != nil {
+		fmt.Printf("can't trust '127.0.0.1', for: %s", err)
+		os.Exit(-1)
+	}
+	if err = utils.GenRsaKey(); err != nil {
+		fmt.Println("can't generate private and public key.")
+		os.Exit(-1)
+	}
+
+	conf := cors.DefaultConfig()
+	allow := append(conf.AllowHeaders, "Token", "Device")
+	conf.AllowAllOrigins, conf.AllowHeaders = true, allow
+	router.Use(loggerFormat(config.TimeFormat), gin.Recovery(), utils.ErrorHandler, cors.New(conf))
+	router.NoRoute(lostHandler)
+	router.Static("/static", "./static")
+
+	utils.SqlInit(config)
+	toCreate := []createTableFn{
+		tables.CreateAdvertiseTable, tables.CreateDeviceTable, tables.CreateManagerTable,
+		tables.CreateParamsTable, tables.CreateVersionTable, tables.CreateWineTable,
+	}
+	for _, Fn := range toCreate {
+		err = Fn()
+		if err != nil {
+			fmt.Println("create mysql tables failed.")
+			os.Exit(-1)
+		}
+	}
+
+	return &App{router: router, config: config}
+}
+
+func (app *App) RouteRegister(routeFns ...routeFn) {
+	for _, fn := range routeFns {
+		fn(app.router)
+	}
+}
+
+func (app *App) Start() {
+	err := app.router.Run(app.config.ServerAddr)
+	if err != nil {
+		fmt.Printf("server can't run on address[%s] for: %s", app.config.ServerAddr, err)
+	}
+}

handlers/test/router.go

@@ -0,0 +1,9 @@
+package test
+
+import "github.com/gin-gonic/gin"
+
+func Router(route *gin.Engine) {
+	test := route.Group("test")
+	test.GET("/ws", WsHandler)
+	test.GET("/send", SendHandler)
+}

handlers/test/worker.go

@@ -0,0 +1,194 @@
+package test
+
+import (
+	"Wine-Server/utils"
+	"Wine-Server/utils/tables"
+	"database/sql"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
+	"sync"
+)
+
+var upgrader = websocket.Upgrader{
+	ReadBufferSize:  1024,
+	WriteBufferSize: 1024,
+	CheckOrigin:     utils.CheckOrigin,
+}
+
+var (
+	devices    = make(map[string]*websocket.Conn)
+	deviceLock sync.Mutex
+	workers    = make(map[string]*websocket.Conn)
+	workerLock sync.Mutex
+)
+
+func deviceAdd(seq string, conn *websocket.Conn) *tables.DeviceTable {
+	device := tables.DeviceTable{Id: seq}
+	err := device.Get()
+	if err == sql.ErrNoRows { // insert new device
+		err = device.Insert()
+		if err != nil {
+			_ = conn.WriteJSON(utils.WsError("New device join failed"))
+			return nil
+		}
+		_ = device.Get()
+	} else { // update last time
+		device.Last = utils.TimeNow()
+		err = device.Update(utils.JsonType{"last": device.Last})
+		if err != nil {
+			_ = conn.WriteJSON(utils.WsError("Update last active time failed"))
+			return nil
+		}
+	}
+
+	deviceLock.Lock()
+	devices[seq] = conn
+	deviceLock.Unlock()
+	fmt.Printf("device connected: %s\n", seq)
+	return &device
+}
+
+func deviceDel(seq string) {
+	deviceLock.Lock()
+	delete(devices, seq)
+	deviceLock.Unlock()
+	fmt.Printf("device[%s] disconnected\n", seq)
+}
+
+type Message struct {
+	Event string `json:"event"`
+	Data  any    `json:"data"`
+}
+
+func WsHandler(c *gin.Context) {
+	conn, err := upgrader.Upgrade(c.Writer, c.Request, nil)
+	if err != nil {
+		c.JSON(utils.HttpError, utils.Fail("can't establish socket connect"))
+		return
+	}
+	seq := c.DefaultQuery("seq", "")
+	if seq == "" {
+		_ = conn.WriteJSON(utils.WsError("device seq is required"))
+		return
+	}
+
+	device := deviceAdd(seq, conn)
+	if device == nil {
+		return
+	}
+	for {
+		var msg Message
+		err = conn.ReadJSON(&msg)
+		if err != nil {
+			deviceDel(seq)
+			return
+		}
+		switch msg.Event {
+		case "getInfo":
+			infoOfDevice(device, conn, msg.Data)
+			break
+		case "setLocation":
+			updateLocation(device, conn, msg.Data)
+			break
+		case "getQrcode":
+			break
+		case "openResult":
+			break
+		default:
+			_ = conn.WriteJSON(utils.WsError("unrecognized event"))
+			break
+		}
+	}
+}
+
+func infoOfDevice(device *tables.DeviceTable, conn *websocket.Conn, data any) {
+	var err error
+	for i := 0; i < 4; i++ {
+		err = device.Wines[i].Get()
+		if err != nil {
+			_ = conn.WriteJSON(utils.WsError("Query wine info failed"))
+			return
+		}
+	}
+	var advList []tables.AdvertiseTable
+	advList, err = tables.AdvListAll()
+	if err != nil {
+		_ = conn.WriteJSON(utils.WsError("Query advertise failed"))
+		return
+	}
+
+	var runParams []tables.ParamsTable
+	runParams, err = tables.ParamsListAll()
+	if err != nil {
+		_ = conn.WriteJSON(utils.WsError("Query running params failed"))
+		return
+	}
+
+	_ = conn.WriteJSON(utils.WsEvent("infoResult", utils.JsonType{
+		"wines":     device.Wines,
+		"position":  device.Addr,
+		"params":    runParams,
+		"advertise": advList,
+	}))
+}
+
+func updateLocation(device *tables.DeviceTable, conn *websocket.Conn, data any) {
+	if data == "" {
+		_ = conn.WriteJSON(utils.WsError("Blank address is not allowed"))
+		return
+	}
+	if device.Addr != data {
+		err := device.Update(utils.JsonType{"addr": data})
+		if err != nil {
+			_ = conn.WriteJSON(utils.WsError("Update location failed"))
+			return
+		}
+		_ = conn.WriteJSON(utils.WsEvent("locationResult", data))
+		return
+	}
+	_ = conn.WriteJSON(utils.WsError("same location"))
+}
+
+type openParam struct {
+	Seq  string `json:"seq"`
+	Uid  string `json:"uid"`
+	Type string `json:"type"`
+}
+
+func SendHandler(c *gin.Context) {
+	conn, err := upgrader.Upgrade(c.Writer, c.Request, nil)
+	if err != nil {
+		c.JSON(utils.HttpError, utils.Fail("can't establish socket connect"))
+		return
+	}
+	var param openParam
+	err = c.ShouldBind(&param)
+	if err != nil {
+		_ = conn.WriteJSON(utils.WsError("param error"))
+		return
+	}
+	if param.Seq == "" || param.Uid == "" || param.Type == "" {
+		_ = conn.WriteJSON(utils.WsError("seq, uid, type is required"))
+		return
+	}
+	if device, ok := devices[param.Seq]; ok {
+		_ = device.WriteJSON(utils.WsEvent("openGate", param.Type))
+	} else {
+		_ = conn.WriteJSON(utils.WsError("no such device or device offline"))
+	}
+
+	workerLock.Lock()
+	workers[param.Uid] = conn
+	workerLock.Unlock()
+	for {
+		var msg Message
+		err = conn.ReadJSON(&msg)
+		if err != nil {
+			workerLock.Lock()
+			delete(workers, param.Uid)
+			workerLock.Unlock()
+			return
+		}
+	}
+}

handlers/worker/router.go

@@ -0,0 +1,8 @@
+package worker
+
+import "github.com/gin-gonic/gin"
+
+func Router(route *gin.Engine)  {
+	worker := route.Group("worker")
+	worker.GET("/socket/:wid", SocketHandler)
+}

handlers/worker/spliter.go

@@ -0,0 +1,56 @@
+package worker
+
+import (
+	"Wine-Server/utils"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
+)
+
+func workerConnected(wid string, conn *websocket.Conn)  {
+	utils.WorkerLock.Lock()
+	utils.WorkerWss[wid] = conn
+	utils.WorkerLock.Unlock()
+	fmt.Printf("worker[%s] connected\n", wid)
+}
+
+func workerDisconnect(wid string)  {
+	utils.WorkerLock.Lock()
+	delete(utils.WorkerWss, wid)
+	utils.WorkerLock.Unlock()
+	fmt.Printf("worker[%s] disconnected\n", wid)
+}
+
+func SocketHandler(ctx *gin.Context) {
+	conn, err := utils.UpgradeHttp2Ws.Upgrade(ctx.Writer, ctx.Request, nil)
+	if err != nil {
+		ctx.JSON(utils.HttpError, utils.Fail("can't establish socket connect"))
+		return
+	}
+	wid := ctx.Param("wid")
+	if wid == "" {
+		_ = conn.WriteJSON(utils.WsError("device seq is required"))
+		return
+	}
+
+	workerConnected(wid, conn)
+	for {
+		var msg utils.WsMsg
+		err = conn.ReadJSON(&msg)
+		if err != nil {
+			workerDisconnect(wid)
+			return
+		}
+		switch msg.Event {
+		case "openGate":
+			openGate(conn, wid, msg.Data)
+			break
+		case "orderFinished":
+			orderFinished(conn, msg.Data)
+			break
+		default:
+			_ = conn.WriteJSON(utils.WsError("unrecognized event"))
+			break
+		}
+	}
+}

handlers/worker/worker.go

@@ -0,0 +1,32 @@
+package worker
+
+import (
+	"Wine-Server/utils"
+	"github.com/gorilla/websocket"
+)
+
+type openParam struct {
+	Seq  string `json:"seq"`
+	Kind string `json:"kind"`
+}
+
+func openGate(conn *websocket.Conn, wid string, data any) {
+	var param openParam
+	err := utils.AnyTrans(data, &param)
+	if err != nil {
+		_ = conn.WriteJSON(utils.WsError("params error"))
+		return
+	}
+	if device, exist := utils.SellerWss[param.Seq]; exist {
+		_ = device.WriteJSON(utils.WsEvent("openGate", utils.JsonType{
+			"kind":   param.Kind,
+			"worker": wid,
+		}))
+		return
+	}
+	_ = conn.WriteJSON(utils.WsError("no such device or device offline"))
+}
+
+func orderFinished(conn *websocket.Conn, obj any) {
+	//
+}

main.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"Wine-Server/handlers"
+	"Wine-Server/handlers/manager"
+	"Wine-Server/handlers/seller"
+	"Wine-Server/handlers/worker"
+	"Wine-Server/utils"
+	"os"
+)
+
+func main() {
+	/*
+	TODO: 微信支付、管理端、（员工端、用户端）小程序
+	*/
+	args, filepath := os.Args, "config.json"
+	if len(args) == 2 {
+		filepath = args[1]
+	}
+	config := utils.ReadConfig(filepath)
+	app := handlers.CreateApp(&config)
+	app.RouteRegister(
+		seller.Router,
+		manager.Router,
+		worker.Router,
+	)
+	app.Start()
+}

utils/cert/APIV3.txt

@@ -0,0 +1 @@
+0HangZhou1GuiZhou2LiQuanGuNiang3

utils/cert/apiclient_cert.pem

@@ -0,0 +1,25 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

utils/cert/apiclient_key.pem

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----

utils/com.go

@@ -0,0 +1,98 @@
+package utils
+
+import (
+	"crypto/rsa"
+	"database/sql"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/gorilla/websocket"
+	"github.com/redis/go-redis/v9"
+	"sync"
+)
+
+const (
+	HttpOk       = 200
+	HttpAuthFail = 403
+	HttpNotFound = 404
+	HttpError    = 500
+
+	FullPatten      = "QWERTYUIOPLKJHGFDSAZXCVBNM0123456789zxcvbnmlkjhgfdsaqwertyuiop-_"
+	NumberPatten    = "0123456789"
+	AlphaPatten     = "QWERTYUIOPLKJHGFDSAZXCVBNMzxcvbnmlkjhgfdsaqwertyuiop"
+	AlphaNumPatten  = "QWERTYUIOPLKJHGFDSAZXCVBNM0123456789zxcvbnmlkjhgfdsaqwertyuiop"
+	UppercasePatten = "QWERTYUIOPLKJHGFDSAZXCVBNM"
+	LowercasePatten = "zxcvbnmlkjhgfdsaqwertyuiop"
+
+	RedisNil = redis.Nil
+)
+
+type WsMsg struct {
+	Event string `json:"event"`
+	Data  any    `json:"data"`
+}
+
+type Response struct {
+	Status bool   `json:"status"`
+	Msg    string `json:"msg"`
+	Data   any    `json:"data"`
+}
+
+type JsonType = map[string]any
+
+type Config struct {
+	Release    bool   `json:"release"`
+	ServerAddr string `json:"server_addr"`
+	TimeFormat string `json:"time_format"`
+
+	MysqlHost     string `json:"mysql_host"`
+	MysqlPort     int    `json:"mysql_port"`
+	MysqlUser     string `json:"mysql_user"`
+	MysqlPass     string `json:"mysql_pass"`
+	MysqlDatabase string `json:"mysql_database"`
+
+	RedisHost     string `json:"redis_host"`
+	RedisPort     int    `json:"redis_port"`
+	RedisPass     string `json:"redis_pass"`
+	RedisDatabase int    `json:"redis_database"`
+
+	WxMerchantAcc string `json:"wx_merchant_acc"`
+	WxApiCertSeq  string `json:"wx_api_cert_seq"`
+	WxApiCertPath string `json:"wx_api_cert_path"`
+	WxApiV3Key    string `json:"wx_api_v3_key"`
+}
+
+// database
+var (
+	Redis        *redis.Client
+	Mysql        *sql.DB
+)
+
+// de-encrypt
+var (
+	ClientPri string
+	ClientPub string
+	ServerPri *rsa.PrivateKey
+	ServerPub *rsa.PublicKey
+)
+
+// wechat pay
+var (
+	WxMerchantAcc string
+	WxApiCertSeq  string
+	WxApiCertPath string
+	WxApiV3Key    string
+)
+
+// websocket
+var (
+	UpgradeHttp2Ws = websocket.Upgrader{
+		ReadBufferSize:  1024,
+		WriteBufferSize: 1024,
+		CheckOrigin:     CheckOrigin,
+	}
+	SellerWss   = make(map[string]*websocket.Conn)
+	SellerLock  sync.Mutex
+	ManagerWss  = make(map[string]*websocket.Conn)
+	ManagerLock sync.Mutex
+	WorkerWss   = make(map[string]*websocket.Conn)
+	WorkerLock  sync.Mutex
+)

utils/errors_here.go

@@ -0,0 +1,41 @@
+package utils
+
+import (
+	"crypto/rsa"
+	"crypto/x509"
+	"github.com/gin-gonic/gin"
+	"math/rand"
+	"net/http"
+	"time"
+)
+
+type TimeType = time.Time
+
+func TimeNow() TimeType {
+	return time.Now()
+}
+
+func Sleep(sec int)  {
+	time.Sleep(time.Duration(sec) * time.Second)
+}
+
+func RandInt(n int) int {
+	return rand.Intn(n)
+}
+
+func MarshalPublicKey(key *rsa.PublicKey) ([]byte, error) {
+	return x509.MarshalPKIXPublicKey(key)
+}
+
+func ErrorHandler(ctx *gin.Context) {
+	defer func() {
+		if recover() != nil {
+			ctx.JSON(HttpError, Fail("oops! Something bad happened."))
+		}
+	}()
+	ctx.Next()
+}
+
+func CheckOrigin(r *http.Request) bool {
+	return true
+}

utils/lib.go

@@ -0,0 +1,162 @@
+package utils
+
+import (
+	"crypto/rand"
+	"crypto/rsa"
+	"database/sql"
+	"encoding/base64"
+	"encoding/json"
+	"encoding/pem"
+	"fmt"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/redis/go-redis/v9"
+	"os"
+)
+
+func RandomString(size int, patten string) string {
+	buffer, limit := make([]byte, size), len(patten)
+	for i := 0; i < size; i++ {
+		buffer[i] = patten[RandInt(limit)]
+	}
+	return string(buffer)
+}
+
+func WsEvent(event string, data any) WsMsg {
+	return WsMsg{Event: event, Data: data}
+}
+
+func WsError(msg string) WsMsg {
+	return WsMsg{Event: "_ERROR_", Data: msg}
+}
+
+func Success(data any) Response {
+	return Response{true, "success", data}
+}
+
+func Fail(msg string) Response {
+	return Response{false, msg, nil}
+}
+
+func ReadConfig(filepath string) Config {
+	config := Config{
+		Release: false, ServerAddr: "127.0.0.1:3080", TimeFormat: "15:04:05",
+		MysqlHost: "127.0.0.1", MysqlPort: 3306, MysqlUser: "wine", MysqlPass: "Wine-Mysql.1000", MysqlDatabase: "wine",
+		RedisHost: "127.0.0.1", RedisPort: 6379, RedisPass: "Wine-Redis.1000", RedisDatabase: 0,
+	}
+
+	file, err := os.Open(filepath)
+	if err != nil {
+		return config
+	}
+	defer func() {
+		err = file.Close()
+		if err != nil {
+		}
+	}()
+
+	decoder := json.NewDecoder(file)
+	var conf Config
+	err = decoder.Decode(&conf)
+	if err != nil {
+		return config
+	}
+
+	return conf
+}
+
+func SqlInit(config *Config) {
+	Redis = redis.NewClient(&redis.Options{
+		Addr:     fmt.Sprintf("%s:%d", config.RedisHost, config.RedisPort),
+		Password: config.RedisPass, DB: config.RedisDatabase,
+	})
+
+	db, err := sql.Open(
+		"mysql",
+		fmt.Sprintf(
+			"%s:%s@tcp(%s:%d)/%s?loc=Local&charset=utf8&parseTime=true",
+			config.MysqlUser, config.MysqlPass, config.MysqlHost, config.MysqlPort, config.MysqlDatabase,
+		),
+	)
+	if err != nil {
+		fmt.Println("mysql init failed.")
+		os.Exit(-1)
+	}
+	err = db.Ping()
+	if err != nil {
+		fmt.Println("mysql connection failed.")
+		os.Exit(-1)
+	}
+
+	Mysql = db
+}
+
+func GenRsaKey() error {
+	var err error
+	var bytes []byte
+
+	ServerPri, err = rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		return err
+	}
+	bytes, err = MarshalPublicKey(&ServerPri.PublicKey)
+	if err != nil {
+		return err
+	}
+	publicBlock := &pem.Block{
+		Type:  "PUBLIC KEY",
+		Bytes: bytes,
+	}
+	ClientPub = string(pem.EncodeToMemory(publicBlock))
+
+	return nil
+}
+
+func Encrypt(data string) (string, error) {
+	return "", nil
+}
+
+func Decrypt(data string) (string, error) {
+	bytes, err := base64.StdEncoding.DecodeString(data)
+	if err != nil {
+		return "", err
+	}
+	bytes, err = rsa.DecryptPKCS1v15(rand.Reader, ServerPri, bytes)
+	if err != nil {
+		return "", err
+	}
+	return string(bytes), nil
+}
+
+func UnZip(list JsonType) ([]string, []any) {
+	var keys []string
+	var values []any
+	for k, v := range list {
+		keys = append(keys, k)
+		values = append(values, v)
+	}
+	return keys, values
+}
+
+func SqlFields(names []string) string {
+	var res string
+	for _, name := range names {
+		res += fmt.Sprintf("`%s`=?, ", name)
+	}
+	ll := len(res)
+	if ll > 0 {
+		return res[:ll-2]
+	}
+	return res
+}
+
+func AnyTrans(data any, aim any) error {
+	tmp, err := json.Marshal(data)
+	if err != nil {
+		return err
+	}
+	err = json.Unmarshal(tmp, aim)
+	if err != nil {
+		return err
+	}
+	return nil
+}

utils/tables/advertise.go

@@ -0,0 +1,99 @@
+package tables
+
+import (
+	"Wine-Server/utils"
+	"fmt"
+)
+
+type AdvertiseTable struct {
+	Id       uint32         `json:"id"`
+	Order    uint8          `json:"order"`
+	Time     utils.TimeType `json:"time"`
+	Src      string         `json:"src"`
+	Type     bool           `json:"type"`     // true: pic, false: video
+	Duration uint16         `json:"duration"` // ms
+}
+
+func CreateAdvertiseTable() error {
+	sql := "CREATE TABLE IF NOT EXISTS `advertise`(" +
+		"`id` INT UNSIGNED AUTO_INCREMENT PRIMARY KEY," +
+		"`order` TINYINT UNSIGNED NOT NULL," +
+		"`time` DATETIME DEFAULT CURRENT_TIMESTAMP," +
+		"`type` BOOL DEFAULT TRUE," +
+		"`src` VARCHAR(128) NOT NULL," +
+		"`duration` SMALLINT UNSIGNED DEFAULT 3000);"
+	_, err := utils.Mysql.Exec(sql)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *AdvertiseTable) Insert() error {
+	sql := "INSERT INTO `advertise` (`id`, `order`, `type`, `src`, `duration`) VALUES (?, ?, ?, ?, ?);"
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Id, row.Order, row.Type, row.Src, row.Duration)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *AdvertiseTable) Delete() error {
+	pre, err := utils.Mysql.Prepare("DELETE FROM `advertise` WHERE `id`=?;")
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Id)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *AdvertiseTable) Update(args utils.JsonType) error {
+	keys, values := utils.UnZip(args)
+	sql := fmt.Sprintf("UPDATE `advertise` SET %s WHERE `id`=%d;", utils.SqlFields(keys), row.Id)
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(values...)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *AdvertiseTable) Get() error {
+	sql := "SELECT `order`, `time`, `src`, `type`, `duration` FROM `advertise` WHERE `id`=?;"
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	err = pre.QueryRow(row.Id).Scan(&row.Order, &row.Time, &row.Src, &row.Type, &row.Duration)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func AdvListAll() ([]AdvertiseTable, error) {
+	var res []AdvertiseTable
+	query, err := utils.Mysql.Query("SELECT `id`, `order`, `time`, `src`, `type`, `duration` FROM `advertise` ORDER BY `order`;")
+	if err != nil {
+		return nil, err
+	}
+	for query.Next() {
+		var one AdvertiseTable
+		err = query.Scan(&one.Id, &one.Order, &one.Time, &one.Src, &one.Type, &one.Duration)
+		if err != nil {
+			return nil, err
+		}
+		res = append(res, one)
+	}
+	return res, nil
+}

utils/tables/create-tables.txt

@@ -0,0 +1,75 @@
+# test
+CREATE TABLE IF NOT EXISTS `test` (
+    `id`   INT AUTO_INCREMENT PRIMARY KEY,
+    `name` VARCHAR(12) NOT NULL,
+    `time` DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+# device
+CREATE TABLE IF NOT EXISTS `device` (
+    `id`           VARCHAR(32) PRIMARY KEY,     -- 板卡SN号为device-id，最大长度不确定
+    `addr`         VARCHAR(128) NOT NULL,
+    `first`        DATETIME          DEFAULT CURRENT_TIMESTAMP,
+    `last`         DATETIME          DEFAULT CURRENT_TIMESTAMP,
+    `wine1`        SMALLINT UNSIGNED,
+    `remain1`      SMALLINT UNSIGNED DEFAULT 0, -- 单位：ml, max=65535ml=65.535L
+    `wine2`        SMALLINT UNSIGNED,
+    `remain2`      SMALLINT UNSIGNED DEFAULT 0,
+    `wine3`        SMALLINT UNSIGNED,
+    `remain3`      SMALLINT UNSIGNED DEFAULT 0,
+    `wine4`        SMALLINT UNSIGNED,
+    `remain4`      SMALLINT UNSIGNED DEFAULT 0,
+    `manager`      VARCHAR(16),
+    `mark`         VARCHAR(256),
+    `order`        INT UNSIGNED      DEFAULT 0, -- max=42,9496,7295
+    `income`       DOUBLE            DEFAULT 0
+);
+
+# wine
+CREATE TABLE IF NOT EXISTS `wine` (
+    `id`       SMALLINT UNSIGNED PRIMARY KEY,
+    `name`     VARCHAR(16)  NOT NULL,
+    `price`    SMALLINT UNSIGNED DEFAULT 9999, -- 单位为：分
+    `density`  DOUBLE            DEFAULT 1,    -- 单位：g/ml
+    `picture`  VARCHAR(128) NOT NULL,
+    `time`     DATETIME          DEFAULT CURRENT_TIMESTAMP,
+    `describe` VARCHAR(256),
+    `order`    INT UNSIGNED      DEFAULT 0,
+    `income`   DOUBLE            DEFAULT 0
+);
+# data
+10100,开发用酒-1,2888,http://localhost:3080/static/images/wine/10100.png,2023-09-22 11:42:53,kai-fa-yong-jiu-1,0,0
+10101,开发用酒-2,2689,http://localhost:3080/static/images/wine/10101.png,2023-09-22 11:42:53,kai-fa-yong-jiu-2,0,0
+10103,开发用酒-3,2566,http://localhost:3080/static/images/wine/10103.png,2023-09-22 11:42:53,kai-fa-yong-jiu-3,0,0
+10105,开发用酒-4,2199,http://localhost:3080/static/images/wine/10105.png,2023-09-22 11:42:53,kai-fa-yong-jiu-4,0,0
+
+
+# manager
+CREATE TABLE IF NOT EXISTS `manager` (
+    `id`           VARCHAR(16) PRIMARY KEY,
+    `super`        BOOL         DEFAULT FALSE,
+    `first`        DATETIME     DEFAULT CURRENT_TIMESTAMP,
+    `last`         DATETIME     DEFAULT CURRENT_TIMESTAMP,
+    `name`         VARCHAR(16)  NOT NULL,
+    `account`      VARCHAR(32)  NOT NULL,
+    `password`     VARCHAR(512) NOT NULL,
+    `order`        INT UNSIGNED DEFAULT 0,
+    `income`       DOUBLE       DEFAULT 0
+);
+
+# advertise
+CREATE TABLE IF NOT EXISTS `advertise` (
+    `id`       INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+    `order`    TINYINT UNSIGNED NOT NULL,
+    `time`     DATETIME          DEFAULT CURRENT_TIMESTAMP,
+    `type`     BOOL              DEFAULT TRUE,
+    `src`      VARCHAR(128)     NOT NULL,
+    `duration` SMALLINT UNSIGNED DEFAULT 3000
+);
+
+# params
+CREATE TABLE IF NOT EXISTS `params` (
+    `id`  INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+    `key` VARCHAR(32) NOT NULL,
+    `value`  INT UNSIGNED DEFAULT 0
+);

utils/tables/device.go

@@ -0,0 +1,123 @@
+package tables
+
+import (
+	"Wine-Server/utils"
+	"fmt"
+)
+
+type deviceWine struct {
+	Id       uint16  `json:"id"`
+	Name     string  `json:"name"`
+	Price    uint16  `json:"price"`
+	Density  float64 `json:"density"`
+	Picture  string  `json:"picture"`
+	Describe string  `json:"describe"`
+	Remain   uint16  `json:"remain"`
+}
+
+func (dv *deviceWine) Get() error {
+	if dv.Id == 0 {
+		return nil
+	}
+	src := &WineTable{Id: dv.Id}
+	err := src.Get()
+	if err != nil {
+		return err
+	}
+	dv.Name = src.Name
+	dv.Price = src.Price
+	dv.Density = src.Density
+	dv.Picture = src.Picture
+	dv.Describe = src.Describe
+	return nil
+}
+
+type DeviceTable struct {
+	Id    string
+	Addr  string
+	First utils.TimeType
+	Last  utils.TimeType
+	Wines [4]deviceWine // db col-name: wine1, remain1, ...
+
+	Manager     string
+	Mark        string
+	OrderCount  uint32
+	TotalIncome float64
+}
+
+func CreateDeviceTable() error {
+	sql := "CREATE TABLE IF NOT EXISTS `device`(" +
+		"`id` VARCHAR(32) PRIMARY KEY," +
+		"`addr` VARCHAR(128) NOT NULL," +
+		"`first` DATETIME DEFAULT CURRENT_TIMESTAMP," +
+		"`last` DATETIME DEFAULT CURRENT_TIMESTAMP," +
+		"`wine1` SMALLINT UNSIGNED,`remain1` SMALLINT UNSIGNED DEFAULT 0," +
+		"`wine2` SMALLINT UNSIGNED,`remain2` SMALLINT UNSIGNED DEFAULT 0," +
+		"`wine3` SMALLINT UNSIGNED,`remain3` SMALLINT UNSIGNED DEFAULT 0," +
+		"`wine4` SMALLINT UNSIGNED,`remain4` SMALLINT UNSIGNED DEFAULT 0," +
+		"`manager` VARCHAR(16),`mark` VARCHAR(256)," +
+		"`order` INT UNSIGNED DEFAULT 0,`income` DOUBLE DEFAULT 0);"
+	_, err := utils.Mysql.Exec(sql)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *DeviceTable) Insert() error {
+	pre, err := utils.Mysql.Prepare("INSERT INTO `device` (`id`, `addr`) VALUES (?, ?);")
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Id, row.Addr)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *DeviceTable) Delete() error {
+	pre, err := utils.Mysql.Prepare("DELETE FROM `device` WHERE `id`=?;")
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Id)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *DeviceTable) Update(args utils.JsonType) error {
+	keys, values := utils.UnZip(args)
+	sql := fmt.Sprintf("UPDATE `device` SET %s WHERE `id`='%s';", utils.SqlFields(keys), row.Id)
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(values...)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *DeviceTable) Get() error {
+	sql := "SELECT `addr`, `first`, `last`, IFNULL(`wine1`, 10100), `remain1`, IFNULL(`wine2`, 10100), `remain2`, " +
+		"IFNULL(`wine3`, 10100), `remain3`, IFNULL(`wine4`, 10100), `remain4`, IFNULL(`manager`, '-'), " +
+		"IFNULL(`mark`, '-'), `order`, `income` " +
+		"FROM `device` WHERE `id`=?;"
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	err = pre.QueryRow(row.Id).Scan(
+		&row.Addr, &row.First, &row.Last, &row.Wines[0].Id, &row.Wines[0].Remain,
+		&row.Wines[1].Id, &row.Wines[1].Remain, &row.Wines[2].Id, &row.Wines[2].Remain,
+		&row.Wines[3].Id, &row.Wines[3].Remain, &row.Manager, &row.Mark, &row.OrderCount, &row.TotalIncome,
+	)
+	if err != nil {
+		return err
+	}
+	return nil
+}

utils/tables/manager.go

@@ -0,0 +1,90 @@
+package tables
+
+import (
+	"Wine-Server/utils"
+	"fmt"
+)
+
+type ManagerTable struct {
+	Id    string
+	Super bool
+	First utils.TimeType
+	Last  utils.TimeType
+
+	Name     string
+	Account  string
+	Password string
+
+	OrderCount  uint32
+	TotalIncome float64
+}
+
+func CreateManagerTable() error {
+	sql := "CREATE TABLE IF NOT EXISTS `manager`(" +
+		"`id` VARCHAR(16) PRIMARY KEY," +
+		"`super` BOOL DEFAULT FALSE," +
+		"`first` DATETIME DEFAULT CURRENT_TIMESTAMP," +
+		"`last` DATETIME DEFAULT CURRENT_TIMESTAMP," +
+		"`name` VARCHAR(16) NOT NULL," +
+		"`account` VARCHAR(32) NOT NULL," +
+		"`password` VARCHAR(512) NOT NULL," +
+		"`order` INT UNSIGNED DEFAULT 0," +
+		"`income` DOUBLE DEFAULT 0);"
+	_, err := utils.Mysql.Exec(sql)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *ManagerTable) Insert() error {
+	sql := "INSERT INTO `manager` (`id`, `name`, `account`, `password`) VALUES (?, ?, ?, ?);"
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Id, row.Name, row.Account, row.Password)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *ManagerTable) Delete() error {
+	pre, err := utils.Mysql.Prepare("DELETE FROM `manager` WHERE `id`=?;")
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Id)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *ManagerTable) Update(args utils.JsonType) error {
+	keys, values := utils.UnZip(args)
+	sql := fmt.Sprintf("UPDATE `manager` SET %s WHERE `id`='%s';", utils.SqlFields(keys), row.Id)
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(values...)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *ManagerTable) Get() error {
+	sql := "SELECT `super`, `first`, `last`, `name`, `account`, `password`, `count`, `income` FROM `manager` WHERE `id`=?;"
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	err = pre.QueryRow(row.Id).Scan(&row.Super, &row.First, &row.Last, &row.Name, &row.Account, &row.Password, &row.OrderCount, &row.TotalIncome)
+	if err != nil {
+		return err
+	}
+	return nil
+}

utils/tables/params.go

@@ -0,0 +1,93 @@
+package tables
+
+import (
+	"Wine-Server/utils"
+	"fmt"
+)
+
+type ParamsTable struct {
+	Id    uint32 `json:"id"`
+	Key   string `json:"key"`
+	Value uint32 `json:"value"`
+}
+
+func CreateParamsTable() error {
+	sql := "CREATE TABLE IF NOT EXISTS `params`(" +
+		"`id` INT UNSIGNED AUTO_INCREMENT PRIMARY KEY," +
+		"`key` VARCHAR(32) NOT NULL," +
+		"`value` INT UNSIGNED NOT NULL);"
+	_, err := utils.Mysql.Exec(sql)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *ParamsTable) Insert() error {
+	sql := "INSERT INTO `params` (`key`, `value`) VALUES (?, ?);"
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Key, row.Value)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *ParamsTable) Delete() error {
+	pre, err := utils.Mysql.Prepare("DELETE FROM `params` WHERE `id`=?;")
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Id)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *ParamsTable) Update(args utils.JsonType) error {
+	keys, values := utils.UnZip(args)
+	sql := fmt.Sprintf("UPDATE `params` SET %s WHERE `id`=%d;", utils.SqlFields(keys), row.Id)
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(values...)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *ParamsTable) Get() error {
+	sql := "SELECT `key`, `value` FROM `params` WHERE `id`=?;"
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	err = pre.QueryRow(row.Id).Scan(&row.Key, &row.Value)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func ParamsListAll() ([]ParamsTable, error) {
+	var res []ParamsTable
+	query, err := utils.Mysql.Query("SELECT `id`, `key`, `value` FROM `params`;")
+	if err != nil {
+		return nil, err
+	}
+	for query.Next() {
+		var one ParamsTable
+		err = query.Scan(&one.Id, &one.Key, &one.Value)
+		if err != nil {
+			return nil, err
+		}
+		res = append(res, one)
+	}
+	return res, nil
+}

utils/tables/version.go

@@ -0,0 +1,89 @@
+package tables
+
+import (
+	"Wine-Server/utils"
+	"fmt"
+)
+
+type VersionTable struct {
+	Ver  uint32 `json:"ver"`
+	Name string `json:"name"`
+	Url  string `json:"url"`
+}
+
+func CreateVersionTable() error {
+	sql := "CREATE TABLE IF NOT EXISTS `version` (" +
+		"`ver` INT UNSIGNED PRIMARY KEY NOT NULL," +
+		"`name` VARCHAR(32)," +
+		"`url` VARCHAR(128) NOT NULL);"
+	_, err := utils.Mysql.Exec(sql)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *VersionTable) Insert() error {
+	sql := "INSERT INTO `version` (`ver`, `name`, `url`) VALUES (?, ?, ?);"
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Ver, row.Name, row.Url)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *VersionTable) Delete() error {
+	pre, err := utils.Mysql.Prepare("DELETE FROM `version` WHERE `ver`=?;")
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Ver)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *VersionTable) Update(args utils.JsonType) error {
+	keys, values := utils.UnZip(args)
+	sql := fmt.Sprintf("UPDATE `version` SET %s WHERE `ver`=%d;", utils.SqlFields(keys), row.Ver)
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(values...)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *VersionTable) GetLatest() error {
+	sql := "SELECT `ver`, `name`, `url` FROM `version` ORDER BY `ver` DESC LIMIT 1;"
+	err := utils.Mysql.QueryRow(sql).Scan(&row.Ver, &row.Name, &row.Url)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func VersionListAll() ([]VersionTable, error) {
+	var res []VersionTable
+	query, err := utils.Mysql.Query("SELECT `ver`, `name`, `url` FROM `version`;")
+	if err != nil {
+		return nil, err
+	}
+	for query.Next() {
+		var one VersionTable
+		err = query.Scan(&one.Ver, &one.Name, &one.Url)
+		if err != nil {
+			return nil, err
+		}
+		res = append(res, one)
+	}
+	return res, nil
+}

utils/tables/wine.go

@@ -0,0 +1,91 @@
+package tables
+
+import (
+	"Wine-Server/utils"
+	"fmt"
+)
+
+type WineTable struct {
+	Id       uint16
+	Name     string
+	Price    uint16
+	Density  float64
+	Picture  string
+	Time     utils.TimeType
+	Describe string
+
+	OrderCount  uint32
+	TotalIncome float64
+}
+
+func CreateWineTable() error {
+	sql := "CREATE TABLE IF NOT EXISTS `wine`(" +
+		"`id` SMALLINT UNSIGNED PRIMARY KEY," +
+		"`name` VARCHAR(16)  NOT NULL," +
+		"`price` SMALLINT UNSIGNED DEFAULT 9999," +
+		"`density` DOUBLE DEFAULT 1," +
+		"`picture` VARCHAR(128) NOT NULL," +
+		"`time` DATETIME DEFAULT CURRENT_TIMESTAMP," +
+		"`describe` VARCHAR(256)," +
+		"`order` INT UNSIGNED DEFAULT 0," +
+		"`income` DOUBLE DEFAULT 0);"
+	_, err := utils.Mysql.Exec(sql)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *WineTable) Insert() error {
+	sql := "INSERT INTO `wine` (`name`, `price`, `picture`, `describe`) VALUES (?, ?, ?, ?, ?, ?, ?);"
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Name, row.Price, row.Picture, row.Describe)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *WineTable) Delete() error {
+	pre, err := utils.Mysql.Prepare("DELETE FROM `wine` WHERE `id`=?;")
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(row.Id)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *WineTable) Update(args utils.JsonType) error {
+	keys, values := utils.UnZip(args)
+	sql := fmt.Sprintf("UPDATE `wine` SET %s WHERE `id`=%d;", utils.SqlFields(keys), row.Id)
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	_, err = pre.Exec(values...)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (row *WineTable) Get() error {
+	sql := "SELECT `name`, `price`, `density`, `picture`, IFNULL(`describe`, ''), `time`, `order`, `income` FROM `wine` WHERE `id`=?;"
+	pre, err := utils.Mysql.Prepare(sql)
+	if err != nil {
+		return err
+	}
+	err = pre.QueryRow(row.Id).Scan(
+		&row.Name, &row.Price, &row.Density, &row.Picture, &row.Describe, &row.Time, &row.OrderCount, &row.TotalIncome,
+	)
+	if err != nil {
+		return err
+	}
+	return nil
+}