add core services, add graph service, add component graph

consts.go

@@ -11,6 +11,9 @@ const CONTENT_TYPE string = "content-Type"
 const CONTENT_TYPE_HTML string = "text/html; charset=utf-8"
 const CONTENT_TYPE_JSON string = "application/json"
 const CONTENT_TYPE_TEXT string = "text/plain"
+const CONTENT_TYPE_IMAGEPNG string = "image/png"
+const CONTENT_TYPE_IMAGEJPG string = "image/jpeg"
+const CONTENT_TYPE_IMAGESVGXML string = "image/svg+xml"
 const CONTENT_TYPE_MULTIPART_FORM_DATA string = "multipart/form-data;"
 const LOCALHOST string = "http://localhost"
 const TEST_STR string = "Testing!"

core.go

@@ -176,6 +176,18 @@ func (app *App) RegisterRoutes(routes []Route, router *httprouter.Router) *httpr
 			router.HEAD(route.Path, app.makeHTTPRouterHandlerFunc(route.Controller, route.Hooks))
 		}
 	}
+
+	// check if use letsencrypt
+	UseCoreServicesStr := os.Getenv("App_USE_CORESERVICES")
+	if UseCoreServicesStr == "" {
+		UseCoreServicesStr = "false"
+	}
+	UseCoreServices, _ := strconv.ParseBool(UseCoreServicesStr)
+	if UseCoreServices {
+		// Register router for graphs
+		router.GET("/coregraph/*graph", Graph)
+	}
+
 	return router
 }
 

go.mod

@@ -4,9 +4,10 @@ replace git.smarteching.com/goffee/core/logger => ./logger
 
 replace git.smarteching.com/goffee/core/env => ./env
 
-go 1.20
+go 1.23.1
 
 require (
+	git.smarteching.com/zeni/go-chart/v2 v2.1.4
 	github.com/brianvoe/gofakeit/v6 v6.21.0
 	github.com/golang-jwt/jwt/v5 v5.0.0
 	github.com/google/uuid v1.3.0
@@ -26,6 +27,7 @@ require (
 	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
 	github.com/go-chi/chi/v5 v5.0.8 // indirect
 	github.com/go-sql-driver/mysql v1.7.0 // indirect
+	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
 	github.com/jackc/pgx/v5 v5.3.1 // indirect
@@ -37,8 +39,9 @@ require (
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/sendgrid/rest v2.6.9+incompatible // indirect
 	github.com/sendgrid/sendgrid-go v3.12.0+incompatible // indirect
+	golang.org/x/image v0.21.0 // indirect
 	golang.org/x/net v0.10.0 // indirect
-	golang.org/x/text v0.11.0 // indirect
+	golang.org/x/text v0.19.0 // indirect
 )
 
 require (

go.sum

@@ -1,3 +1,5 @@
+git.smarteching.com/zeni/go-chart/v2 v2.1.4 h1:pF06+F6eqJLIG8uMiTVPR5TygPGMjM/FHMzTxmu5V/Q=
+git.smarteching.com/zeni/go-chart/v2 v2.1.4/go.mod h1:b3ueW9h3pGGXyhkormZAvilHaG4+mQti+bMNPdQBeOQ=
 github.com/SparkPost/gosparkpost v0.2.0 h1:yzhHQT7cE+rqzd5tANNC74j+2x3lrPznqPJrxC1yR8s=
 github.com/SparkPost/gosparkpost v0.2.0/go.mod h1:S9WKcGeou7cbPpx0kTIgo8Q69WZvUmVeVzbD+djalJ4=
 github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 h1:DklsrG3dyBCFEj5IhUbnKptjxatkF07cF2ak3yi77so=
@@ -5,7 +7,9 @@ github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2/go.mod h1:W
 github.com/brianvoe/gofakeit/v6 v6.21.0 h1:tNkm9yxEbpuPK8Bx39tT4sSc5i9SUGiciLdNix+VDQY=
 github.com/brianvoe/gofakeit/v6 v6.21.0/go.mod h1:Ow6qC71xtwm79anlwKRlWZW6zVq9D2XHE4QSSMP/rU8=
 github.com/bsm/ginkgo/v2 v2.7.0 h1:ItPMPH90RbmZJt5GtkcNvIRuGEdwlBItdNVoyzaNQao=
+github.com/bsm/ginkgo/v2 v2.7.0/go.mod h1:AiKlXPm7ItEHNc/2+OkrNG4E0ITzojb9/xWzvQ9XZ9w=
 github.com/bsm/gomega v1.26.0 h1:LhQm+AFcgV2M0WyKroMASzAzCAJVpAxQXv4SaI9a69Y=
+github.com/bsm/gomega v1.26.0/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
 github.com/buger/jsonparser v1.0.0/go.mod h1:tgcrVJ81GPSF0mz+0nu1Xaz0fazGPrmmJfJtxjbHhUQ=
 github.com/cention-sany/utf7 v0.0.0-20170124080048-26cad61bd60a/go.mod h1:2GxOXOlEPAMFPfp014mK1SWq8G8BN8o7/dfYqJrVGn8=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
@@ -31,6 +35,8 @@ github.com/go-test/deep v1.0.2/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3a
 github.com/gogs/chardet v0.0.0-20150115103509-2404f7772561/go.mod h1:Pcatq5tYkCW2Q6yrR2VRHlbHpZ/R4/7qyL1TCF7vl14=
 github.com/golang-jwt/jwt/v5 v5.0.0 h1:1n1XNM9hk7O9mnQoNBGolZvzebBQ7p93ULHRc28XJUE=
 github.com/golang-jwt/jwt/v5 v5.0.0/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
@@ -83,21 +89,25 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.11.0 h1:6Ewdq3tDic1mg5xRO4milcWCfMVQhI4NkqWWvqejpuA=
 golang.org/x/crypto v0.11.0/go.mod h1:xgJhtzW8F9jGdVFWZESrid1U1bjeNy4zgy5cRr/CIio=
+golang.org/x/image v0.21.0 h1:c5qV36ajHpdj4Qi0GnE0jUc/yuo33OLFaa0d+crTD5s=
+golang.org/x/image v0.21.0/go.mod h1:vUbsLavqK/W303ZroQQVKQ+Af3Yl6Uz1Ppu5J/cLz78=
 golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.10.0 h1:X2//UzNDwYmtCLn7To6G58Wr6f5ahEAQgKNzv9Y951M=
 golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/text v0.11.0 h1:LAntKIrcmeSKERyiOh0XMV39LXS8IE9UL2yP7+f5ij4=
+golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
-golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gorm.io/driver/mysql v1.5.1 h1:WUEH5VF9obL/lTtzjmML/5e6VfFR/788coz2uaVCAZw=
 gorm.io/driver/mysql v1.5.1/go.mod h1:Jo3Xu7mMhCyj8dlrb3WoCaRd1FhsVh+yMXb1jUInf5o=
 gorm.io/driver/postgres v1.5.2 h1:ytTDxxEv+MplXOfFe3Lzm7SjG09fcdb3Z/c056DTBx0=

graph.go

@@ -0,0 +1,140 @@
+// Copyright (c) 2024 Zeni Kim <zenik@smarteching.com>
+// Use of this source code is governed by MIT-style
+// license that can be found in the LICENSE file.
+
+package core
+
+import (
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"git.smarteching.com/zeni/go-chart/v2"
+	"github.com/julienschmidt/httprouter"
+)
+
+func Graph(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
+
+	// $_GET values
+
+	service := ps.ByName("graph")
+
+	if service != "" {
+
+		//serv := strings.TrimPrefix(service, "/")
+		serv := strings.Split(service, "/")
+
+		switch serv[1] {
+
+		case "graph":
+
+			kindg := serv[2]
+
+			if kindg != "" {
+
+				switch kindg {
+				// case graph pie
+				case "pie":
+
+					queryValues := r.URL.Query()
+					labels := strings.Split(queryValues.Get("l"), "|")
+					values := strings.Split(queryValues.Get("v"), "|")
+
+					qtyl := len(labels)
+					qtyv := len(values)
+
+					// cjeck qty and equal values from url
+					if qtyl < 2 {
+						fmt.Fprintf(w, "Missing captions in pie")
+						return
+					}
+					if qtyv != qtyl {
+						fmt.Fprintf(w, "Labels and values mismatch")
+						return
+					}
+
+					var cvalues []chart.Value
+					var row chart.Value
+					// fill values
+					for index, line := range labels {
+						valuefloat, _ := strconv.ParseFloat(values[index], 64)
+						row.Value = valuefloat
+						row.Label = line
+						cvalues = append(cvalues, row)
+					}
+
+					pie := chart.PieChart{
+						Width:  512,
+						Height: 512,
+						Values: cvalues,
+					}
+					w.Header().Set("Content-Type", "image/png")
+					err := pie.Render(chart.PNG, w)
+					if err != nil {
+						fmt.Printf("Error rendering pie chart: %v\n", err)
+					}
+
+				// case graph bar
+				case "bar":
+
+					queryValues := r.URL.Query()
+					labels := strings.Split(queryValues.Get("l"), "|")
+					values := strings.Split(queryValues.Get("v"), "|")
+
+					qtyl := len(labels)
+					qtyv := len(values)
+
+					// cjeck qty and equal values from url
+					if qtyl < 2 {
+						fmt.Fprintf(w, "Missing captions in pie")
+						return
+					}
+					if qtyv != qtyl {
+						fmt.Fprintf(w, "Labels and values mismatch")
+						return
+					}
+
+					var cvalues []chart.Value
+					var row chart.Value
+					// fill values
+					for index, line := range labels {
+						valuefloat, _ := strconv.ParseFloat(values[index], 64)
+						row.Value = valuefloat
+						row.Label = line
+						cvalues = append(cvalues, row)
+					}
+
+					bar := chart.BarChart{
+						Height:   512,
+						BarWidth: 50,
+						Bars:     cvalues,
+					}
+					w.Header().Set("Content-Type", "image/png")
+					err := bar.Render(chart.PNG, w)
+					if err != nil {
+						fmt.Printf("Error rendering pie chart: %v\n", err)
+					}
+
+				default:
+					fmt.Fprintf(w, "Unknown graph %s!\n", kindg)
+				}
+
+			} else {
+				fmt.Fprintf(w, "Kind graph not exists")
+			}
+			//
+
+		default:
+
+			fmt.Fprintf(w, "Unknown option in core service %s!\n", ps.ByName("serv"))
+
+		}
+		fmt.Fprintf(w, "Service %s!\n", serv)
+
+	} else {
+
+		fmt.Fprintf(w, "Unknown core service %s!\n", ps.ByName("graph"))
+	}
+
+}

template/components/content_graph.go

@@ -0,0 +1,8 @@
+package components
+
+type ContentGraph struct {
+	Graph  string // pie, bar
+	Labels string
+	Values string
+	Alt    string
+}

template/components/content_graph.html

@@ -0,0 +1,3 @@
+{{define "content_graph"}}
+   <img src="/coregraph/graph/{{.Graph}}?l={{.Labels}}&v={{.Values}}" alt="{{.Alt}}">
+{{end}}