package main

import (
	"os"
	"path/filepath"

	"github.com/vicanso/go-charts/v2"
)

func writeFile(buf []byte) error {
	tmpPath := "./tmp"
	err := os.MkdirAll(tmpPath, 0700)
	if err != nil {
		return err
	}

	file := filepath.Join(tmpPath, "radar-chart.png")
	err = os.WriteFile(file, buf, 0600)
	if err != nil {
		return err
	}
	return nil
}

func main() {
	values := [][]float64{
		{
			4200,
			3000,
			20000,
			35000,
			50000,
			18000,
		},
		{
			5000,
			14000,
			28000,
			26000,
			42000,
			21000,
		},
	}
	p, err := charts.RadarRender(
		values,
		charts.TitleTextOptionFunc("Basic Radar Chart"),
		charts.LegendLabelsOptionFunc([]string{
			"Allocated Budget",
			"Actual Spending",
		}),
		charts.RadarIndicatorOptionFunc([]string{
			"Sales",
			"Administration",
			"Information Technology",
			"Customer Support",
			"Development",
			"Marketing",
		}, []float64{
			6500,
			16000,
			30000,
			38000,
			52000,
			25000,
		}),
	)
	if err != nil {
		panic(err)
	}

	buf, err := p.Bytes()
	if err != nil {
		panic(err)
	}
	err = writeFile(buf)
	if err != nil {
		panic(err)
	}
}