build.go

package main

import (
	"fmt"
	"io/ioutil"
	"os"
	"regexp"
	"strings"

	"github.com/BurntSushi/toml"
	"github.com/google/uuid"
)

const (
	Package = "lukechilds/company-contacts"

	vBegin     = "BEGIN:VCARD"
	vVersion   = "VERSION:3.0"
	vKindOrg   = "KIND:org"
	vKindGroup = "KIND:group"
	vNote      = "NOTE:Generated by " + Package
	vEnd       = "END:VCARD"
)

type (
	Company struct {
		ID,
		Name,
		Logo,
		Color,
		Website string

		LogoPadding int

		Phone interface{}
		Email interface{}

		vcard []string
	}

	Companies map[string]Company
)

func (c Company) UUID() string {
	b := []byte(fmt.Sprintf("%s:%s", Package, c.ID))

	// Convert last 16 bytes into UUID
	uid, err := uuid.FromBytes(b[len(b)-16:])
	if err != nil {
		panic(err)
	}

	return uid.URN()
}

func unFuck(fuck interface{}) string {
	if cuss, ok := fuck.(string); ok {
		return cuss
	}
	return ""
}

func unClusterFuck(clusterFuck interface{}) (clusterCuss []string) {
	if cuss := unFuck(clusterFuck); cuss != "" {
		return []string{cuss}
	}

	if fucks, ok := clusterFuck.([]interface{}); ok {
		for _, fuck := range fucks {
			clusterCuss = append(clusterCuss, unFuck(fuck))
		}
	}

	return
}

func (c Company) ToVCard() string {
	v := []string{
		vBegin,
		vVersion,
		vKindOrg,
	}

	v = append(v, fmt.Sprintf("FN:%s", c.Name))
	v = append(v, fmt.Sprintf("URL:%s", c.Website))

	for _, phone := range unClusterFuck(c.Phone) {
		v = append(v, fmt.Sprintf("TEL;VALUE=uri;TYPE=cell:tel:%s", phone))
	}

	for _, email := range unClusterFuck(c.Email) {
		v = append(v, fmt.Sprintf("EMAIL;TYPE=INTERNET;TYPE=WORK:%s", email))
	}

	logo, err := ioutil.ReadFile(fmt.Sprintf("logos/%s", c.Logo))
	if err != nil {
		panic(err)
	}

	logoMinimized := regexp.MustCompile(`[\n\t]|[\s\p{Zs}]{2,}`).ReplaceAllString(string(logo), "")
	v = append(v, fmt.Sprintf("LOGO:data:image/svg+xml;utf8,%s", logoMinimized))
	v = append(v, fmt.Sprintf("PHOTO:data:image/svg+xml;utf8,%s", logoMinimized))

	v = append(v, fmt.Sprintf("CATEGORIES:Company Logos"))
	v = append(v, fmt.Sprintf("UID:%s", c.UUID()))
	return strings.Join(append(v, vNote, vEnd), "\n")
}

func main() {
	_ = os.MkdirAll("dist/individual-vcards", os.ModePerm)

	var companies Companies
	if _, err := toml.DecodeFile("companies.toml", &companies); err != nil {
		panic(err)
	}

	f, err := os.Create("dist/company-contacts.vcf")
	if err != nil {
		panic(err)
	}


	defer f.Close()

	var group []string
	for id, company := range companies {
		company.ID = id

		group = append(group, fmt.Sprintf("MEMBER:%s", company.UUID()))

		vcard := company.ToVCard()

		err := ioutil.WriteFile(
			fmt.Sprintf("dist/individual-vcards/%s.vcf", id),
			[]byte(vcard),
			os.ModePerm,
		)
		if err != nil {
			panic(err)
		}

		if _, err := f.WriteString(fmt.Sprintf("%s\n\n", vcard)); err != nil {
			panic(err)
		}
	}

	_, err = f.WriteString(fmt.Sprintf("\n\n%s\n%s", strings.Join(
		append([]string{
			vBegin,
			vVersion,
			vKindGroup,
			fmt.Sprintf("FN:Company Logos"),
		}, group...), "\n"),
		vEnd))
	if err != nil {
		panic(err)
	}
}