initial commit

iso/currency.go

@@ -0,0 +1,10 @@
+package iso
+
+type ISOCurrency struct {
+	Name      string
+	Code      string
+	Number    string
+	MinorUnit string
+}
+
+//go:generate go run generate.go

iso/generate.go

@@ -0,0 +1,98 @@
+//go:build ignore
+
+package main
+
+import (
+	"bytes"
+	"encoding/xml"
+	"fmt"
+	"os"
+	"os/exec"
+	"time"
+
+	"github.com/go-resty/resty/v2"
+)
+
+const (
+	xmlFileURL = "https://www.six-group.com/dam/download/financial-information/data-center/iso-currrency/lists/list-one.xml"
+)
+
+type iso4217 struct {
+	XMLName       xml.Name `xml:"ISO_4217"`
+	Published     string   `xml:"Pblshd,attr"`
+	CurrencyTable struct {
+		XMLName         xml.Name               `xml:"CcyTbl"`
+		CurrencyEntries []iso4217CurrencyEntry `xml:"CcyNtry"`
+	} `xml:"CcyTbl"`
+}
+
+type iso4217CurrencyEntry struct {
+	XMLName            xml.Name `xml:"CcyNtry"`
+	CountryName        string   `xml:"CtryNm"`
+	CurrencyName       string   `xml:"CcyNm"`
+	Currency           string   `xml:"Ccy"`
+	CurrencyNumber     string   `xml:"CcyNbr"`
+	CurrencyMinorUnits string   `xml:"CcyMnrUnts"`
+}
+
+func main() {
+	resp, err := resty.New().
+		SetTimeout(time.Second * 10).
+		R().Get(xmlFileURL)
+
+	if err != nil {
+		panic(err)
+	}
+	if resp.StatusCode() != 200 {
+		panic(fmt.Sprintf("response from %q: %d %q", xmlFileURL, resp.StatusCode(), string(resp.Body())))
+	}
+
+	var parsed iso4217
+
+	err = xml.Unmarshal(resp.Body(), &parsed)
+	if err != nil {
+		panic(err)
+	}
+
+	buf := bytes.NewBuffer(nil)
+
+	_, _ = fmt.Fprint(buf, "// Code generated with `go generate`. DO NOT EDIT.\n\n")
+	_, _ = fmt.Fprint(buf, "package iso\n\n")
+	_, _ = fmt.Fprint(buf, "var Currencies = map[string]ISOCurrency {\n")
+
+	sean := map[string]struct{}{}
+	for _, entry := range parsed.CurrencyTable.CurrencyEntries {
+		if entry.Currency == "" {
+			continue
+		}
+		if _, ok := sean[entry.Currency]; ok {
+			continue
+		}
+		sean[entry.Currency] = struct{}{}
+
+		_, _ = fmt.Fprintf(buf, "\t%q: {\n", entry.Currency)
+		_, _ = fmt.Fprintf(buf, "\t\t%s: %q,\n", "Name", entry.CurrencyName)
+		_, _ = fmt.Fprintf(buf, "\t\t%s: %q,\n", "Code", entry.Currency)
+		_, _ = fmt.Fprintf(buf, "\t\t%s: %q,\n", "Number", entry.CurrencyNumber)
+		_, _ = fmt.Fprintf(buf, "\t\t%s: %q,\n", "MinorUnit", entry.CurrencyMinorUnits)
+		_, _ = fmt.Fprint(buf, "\t},\n")
+	}
+
+	_, _ = fmt.Fprint(buf, "}\n")
+
+	oF, err := os.OpenFile("currencies.go", os.O_WRONLY|os.O_TRUNC, 0644)
+	if err != nil {
+		panic(err)
+	}
+
+	fmtCmd := exec.Command("gofmt", "-s")
+	fmtCmd.Stdin = bytes.NewReader(buf.Bytes())
+	fmtCmd.Stdout = oF
+	if err = fmtCmd.Start(); err != nil {
+		panic(err)
+	}
+
+	if err = fmtCmd.Wait(); err != nil {
+		panic(err)
+	}
+}