add working webserver example

bin/main.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"math/rand"
+	"net/http"
+	"time"
+
+	"github.com/gorilla/mux"
+	"github.com/taigrr/gitgraph/graph"
+)
+
+type DayCount [366]int
+
+func init() {
+	rand.Seed(time.Now().UnixMilli())
+}
+func main() {
+	r := mux.NewRouter()
+	r.HandleFunc("/weekly.svg", func(w http.ResponseWriter, r *http.Request) {
+		freq := []int{}
+		for i := 0; i < 7; i++ {
+			freq = append(freq, rand.Int())
+		}
+		w.Header().Add("Content-Type", "text/html")
+		svg := graph.GetWeekImage(freq)
+		svg.WriteTo(w)
+
+	})
+	r.HandleFunc("/yearly.svg", func(w http.ResponseWriter, r *http.Request) {
+		freq := []int{}
+		for i := 0; i < 365; i++ {
+			freq = append(freq, rand.Int())
+		}
+		svg := graph.GetYearImage(freq)
+		w.Header().Add("Content-Type", "text/html")
+		svg.WriteTo(w)
+
+	})
+
+	http.ListenAndServe("0.0.0.0:5578", r)
+}

go.mod

@@ -6,6 +6,7 @@ replace github.com/taigrr/go-colorpallettes => ../go-colorpallettes
 
 require (
 	github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b
+	github.com/gorilla/mux v1.8.0
 	github.com/srwiley/oksvg v0.0.0-20220128195007-1f435e4c2b44
 	github.com/srwiley/rasterx v0.0.0-20220615024203-67b7089efd25
 	github.com/taigrr/go-colorpallettes v0.0.0-00010101000000-000000000000

go.sum

@@ -3,6 +3,8 @@ github.com/ajstarks/deck v0.0.0-20200831202436-30c9fc6549a9/go.mod h1:JynElWSGnm
 github.com/ajstarks/deck/generate v0.0.0-20210309230005-c3f852c02e19/go.mod h1:T13YZdzov6OU0A1+RfKZiZN9ca6VeKdBdyDV+BY97Tk=
 github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b h1:slYM766cy2nI3BwyRiyQj/Ud48djTMtMebDqepE95rw=
 github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b/go.mod h1:1KcenG0jGWcpt8ov532z81sp/kMMUG485J2InIOyADM=
+github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
+github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/srwiley/oksvg v0.0.0-20220128195007-1f435e4c2b44 h1:XPYXKIuH/n5zpUoEWk2jWV/SjEMNYmqDYmTgbjmhtaI=
 github.com/srwiley/oksvg v0.0.0-20220128195007-1f435e4c2b44/go.mod h1:cNQ3dwVJtS5Hmnjxy6AgTPd0Inb3pW05ftPSX7NZO7Q=

graph/graph.go

@@ -26,7 +26,7 @@ func CreateGraph() bytes.Buffer {
 
 func init() {
 	colors := []string{"#767960", "#a7297f", "#e8ca89", "#f5efd6", "#858966"}
-	colors = []string{"#161b22", "#0e4429", "#006d32", "#26a641", "#39d353"}
+	// colors = []string{"#000000", "#0e4429", "#006d32", "#26a641", "#39d353"}
 	for _, c := range colors {
 		color := sc.FromHexString(c)
 		colorScheme = append(colorScheme, color)
@@ -51,6 +51,31 @@ func ColorForFrequency(freq, min, max int) sc.SimpleColor {
 	}
 	return colorScheme[colorIndex]
 }
+func GetWeekImage(frequencies []int) bytes.Buffer {
+	squareColors := []sc.SimpleColor{}
+	min, max := minmax(frequencies)
+	for _, f := range frequencies {
+		squareColors = append(squareColors, ColorForFrequency(f, min, max))
+	}
+	return drawWeekImage(squareColors)
+}
+
+func drawWeekImage(c []sc.SimpleColor) bytes.Buffer {
+	var sb bytes.Buffer
+	sbw := bufio.NewWriter(&sb)
+	squareLength := 10
+	width := (len(c) + 1) * squareLength * 2
+	height := squareLength * 2
+	canvas := svg.New(sbw)
+	canvas.Start(width, height)
+	canvas.Rect(0, 0, width, height, "fill:black")
+	for i, s := range c {
+		canvas.Square(squareLength*2*(i+1), squareLength/2, squareLength, fmt.Sprintf("fill:%s", s.HexString()))
+	}
+	canvas.End()
+	sbw.Flush()
+	return sb
+}
 func GetYearImage(frequencies []int) bytes.Buffer {
 	squareColors := []sc.SimpleColor{}
 	min, max := minmax(frequencies)

main.go

@@ -1,28 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"math/rand"
-	"os"
-	"time"
-
-	"github.com/taigrr/gitgraph/graph"
-)
-
-type DayCount [366]int
-
-func main() {
-	freq := []int{}
-	rand.Seed(time.Now().UnixMilli())
-	for i := 0; i < 366; i++ {
-		freq = append(freq, rand.Int())
-	}
-	svg := graph.GetYearImage(freq)
-	f, err := os.Create("out.svg")
-	if err != nil {
-		fmt.Printf("Error: %v\n", err)
-		return
-	}
-	defer f.Close()
-	svg.WriteTo(f)
-}