38 lines
844 B
Go
38 lines
844 B
Go
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package http
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import (
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"bytes"
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"io"
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"net/http"
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"os"
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"text/template"
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)
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var GoodAvailablityTemplate string
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func tempProcent(value, max int) int {
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return value * 100 / max
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}
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func tempProcessRadius(value, max, radius int) float64 {
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return (1 - float64(value)/float64(max)) * float64(radius) * 2 * 3.14
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}
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func getGoodAvailablitySVG(w http.ResponseWriter, count int) {
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t := template.New("some")
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t = t.Funcs(template.FuncMap{"procent": tempProcent,
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"process_radius": tempProcessRadius,
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})
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buf := bytes.NewBuffer(nil)
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f, _ := os.Open(GoodAvailablityTemplate) // Error handling elided for brevity.
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io.Copy(buf, f) // Error handling elided for brevity.
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f.Close()
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s := string(buf.Bytes())
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t.Parse(s)
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w.Header().Set("Content-Type", "image/svg+xml")
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t.Execute(w, map[string]interface{}{"Count": count})
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}
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