310 lines
9.0 KiB
Go
310 lines
9.0 KiB
Go
package pkg
|
||
|
||
import (
|
||
"context"
|
||
"errors"
|
||
"github.com/julienschmidt/httprouter"
|
||
"html/template"
|
||
"net/http"
|
||
"net/url"
|
||
"strconv"
|
||
)
|
||
|
||
const (
|
||
ContextCompanyKey = "numerus-company"
|
||
)
|
||
|
||
type Company struct {
|
||
Id int
|
||
CurrencySymbol string
|
||
DecimalDigits int
|
||
Slug string
|
||
}
|
||
|
||
func CompanyHandler(next http.Handler) httprouter.Handle {
|
||
return func(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
|
||
company := &Company{
|
||
Slug: params[0].Value,
|
||
}
|
||
conn := getConn(r)
|
||
err := conn.QueryRow(r.Context(), "select company_id, currency_symbol, decimal_digits from company join currency using (currency_code) where slug = $1", company.Slug).Scan(&company.Id, &company.CurrencySymbol, &company.DecimalDigits)
|
||
if err != nil {
|
||
http.NotFound(w, r)
|
||
return
|
||
}
|
||
ctx := context.WithValue(r.Context(), ContextCompanyKey, company)
|
||
r = r.WithContext(ctx)
|
||
r2 := new(http.Request)
|
||
*r2 = *r
|
||
r2.URL = new(url.URL)
|
||
*r2.URL = *r.URL
|
||
r2.URL.Path = params[1].Value
|
||
next.ServeHTTP(w, r2)
|
||
}
|
||
}
|
||
|
||
func (c Company) MinCents() float64 {
|
||
var r float64
|
||
r = 1
|
||
for i := 0; i < c.DecimalDigits; i++ {
|
||
r /= 10.0
|
||
}
|
||
return r
|
||
}
|
||
|
||
func getCompany(r *http.Request) *Company {
|
||
company := r.Context().Value(ContextCompanyKey)
|
||
if company == nil {
|
||
return nil
|
||
}
|
||
return company.(*Company)
|
||
}
|
||
|
||
type CurrencyOption struct {
|
||
Code string
|
||
Symbol string
|
||
}
|
||
|
||
type CountryOption struct {
|
||
Code string
|
||
Name string
|
||
}
|
||
|
||
type Tax struct {
|
||
Id int
|
||
Name string
|
||
Class string
|
||
Rate int
|
||
}
|
||
|
||
type taxDetailsForm struct {
|
||
*contactForm
|
||
Currency *SelectField
|
||
}
|
||
|
||
func newTaxDetailsForm(ctx context.Context, conn *Conn, locale *Locale) *taxDetailsForm {
|
||
return &taxDetailsForm{
|
||
contactForm: newContactForm(ctx, conn, locale),
|
||
Currency: &SelectField{
|
||
Name: "currency",
|
||
Label: pgettext("input", "Currency", locale),
|
||
Options: MustGetOptions(ctx, conn, "select currency_code, currency_symbol from currency order by currency_code"),
|
||
Required: true,
|
||
Selected: []string{"EUR"},
|
||
},
|
||
}
|
||
}
|
||
|
||
func (form *taxDetailsForm) Parse(r *http.Request) error {
|
||
if err := form.contactForm.Parse(r); err != nil {
|
||
return err
|
||
}
|
||
form.Currency.FillValue(r)
|
||
return nil
|
||
}
|
||
|
||
func (form *taxDetailsForm) Validate(ctx context.Context, conn *Conn) bool {
|
||
validator := newFormValidator()
|
||
validator.CheckValidSelectOption(form.Currency, gettext("Selected currency is not valid.", form.locale))
|
||
return form.contactForm.Validate(ctx, conn) && validator.AllOK()
|
||
}
|
||
|
||
func (form *taxDetailsForm) mustFillFromDatabase(ctx context.Context, conn *Conn, company *Company) *taxDetailsForm {
|
||
err := conn.QueryRow(ctx, "select business_name, substr(vatin::text, 3), trade_name, phone, email, web, address, city, province, postal_code, country_code, currency_code from company where company_id = $1", company.Id).Scan(form.BusinessName, form.VATIN, form.TradeName, form.Phone, form.Email, form.Web, form.Address, form.City, form.Province, form.PostalCode, form.Country, form.Currency)
|
||
if err != nil {
|
||
panic(err)
|
||
}
|
||
return form
|
||
}
|
||
|
||
type TaxDetailsPage struct {
|
||
DetailsForm *taxDetailsForm
|
||
NewTaxForm *taxForm
|
||
Taxes []*Tax
|
||
}
|
||
|
||
func GetCompanyTaxDetailsForm(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
|
||
mustRenderTaxDetailsForm(w, r, newTaxDetailsFormFromDatabase(r))
|
||
}
|
||
|
||
func newTaxDetailsFormFromDatabase(r *http.Request) *taxDetailsForm {
|
||
locale := getLocale(r)
|
||
conn := getConn(r)
|
||
form := newTaxDetailsForm(r.Context(), conn, locale)
|
||
|
||
company := mustGetCompany(r)
|
||
form.mustFillFromDatabase(r.Context(), conn, company)
|
||
|
||
return form
|
||
}
|
||
|
||
func HandleCompanyTaxDetailsForm(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
|
||
locale := getLocale(r)
|
||
conn := getConn(r)
|
||
form := newTaxDetailsForm(r.Context(), conn, locale)
|
||
if err := form.Parse(r); err != nil {
|
||
http.Error(w, err.Error(), http.StatusBadRequest)
|
||
return
|
||
}
|
||
if err := verifyCsrfTokenValid(r); err != nil {
|
||
http.Error(w, err.Error(), http.StatusForbidden)
|
||
return
|
||
}
|
||
if ok := form.Validate(r.Context(), conn); !ok {
|
||
w.WriteHeader(http.StatusUnprocessableEntity)
|
||
mustRenderTaxDetailsForm(w, r, form)
|
||
return
|
||
}
|
||
company := mustGetCompany(r)
|
||
conn.MustExec(r.Context(), "update company set business_name = $1, vatin = ($11 || $2)::vatin, trade_name = $3, phone = parse_packed_phone_number($4, $11), email = $5, web = $6, address = $7, city = $8, province = $9, postal_code = $10, country_code = $11, currency_code = $12 where company_id = $13", form.BusinessName, form.VATIN, form.TradeName, form.Phone, form.Email, form.Web, form.Address, form.City, form.Province, form.PostalCode, form.Country, form.Currency, company.Id)
|
||
http.Redirect(w, r, companyURI(company, "/tax-details"), http.StatusSeeOther)
|
||
return
|
||
}
|
||
|
||
func mustRenderTaxDetailsForm(w http.ResponseWriter, r *http.Request, form *taxDetailsForm) {
|
||
page := &TaxDetailsPage{
|
||
DetailsForm: form,
|
||
NewTaxForm: newTaxForm(r.Context(), getConn(r), mustGetCompany(r), getLocale(r)),
|
||
}
|
||
mustRenderTexDetailsPage(w, r, page)
|
||
}
|
||
|
||
func mustRenderTaxForm(w http.ResponseWriter, r *http.Request, form *taxForm) {
|
||
page := &TaxDetailsPage{
|
||
DetailsForm: newTaxDetailsFormFromDatabase(r),
|
||
NewTaxForm: form,
|
||
}
|
||
mustRenderTexDetailsPage(w, r, page)
|
||
}
|
||
|
||
func mustRenderTexDetailsPage(w http.ResponseWriter, r *http.Request, page *TaxDetailsPage) {
|
||
conn := getConn(r)
|
||
company := mustGetCompany(r)
|
||
page.Taxes = mustGetTaxes(r.Context(), conn, company)
|
||
mustRenderAppTemplate(w, r, "tax-details.gohtml", page)
|
||
}
|
||
|
||
func mustGetCompany(r *http.Request) *Company {
|
||
company := getCompany(r)
|
||
if company == nil {
|
||
panic(errors.New("company: required but not found"))
|
||
}
|
||
return company
|
||
}
|
||
|
||
func mustGetTaxes(ctx context.Context, conn *Conn, company *Company) []*Tax {
|
||
rows, err := conn.Query(ctx, "select tax_id, tax.name, tax_class.name, (rate * 100)::integer from tax join tax_class using (tax_class_id) where tax.company_id = $1 order by rate, tax.name", company.Id)
|
||
if err != nil {
|
||
panic(err)
|
||
}
|
||
defer rows.Close()
|
||
|
||
var taxes []*Tax
|
||
for rows.Next() {
|
||
tax := &Tax{}
|
||
err = rows.Scan(&tax.Id, &tax.Name, &tax.Class, &tax.Rate)
|
||
if err != nil {
|
||
panic(err)
|
||
}
|
||
taxes = append(taxes, tax)
|
||
}
|
||
if rows.Err() != nil {
|
||
panic(rows.Err())
|
||
}
|
||
|
||
return taxes
|
||
}
|
||
|
||
type taxForm struct {
|
||
locale *Locale
|
||
Name *InputField
|
||
Class *SelectField
|
||
Rate *InputField
|
||
}
|
||
|
||
func newTaxForm(ctx context.Context, conn *Conn, company *Company, locale *Locale) *taxForm {
|
||
return &taxForm{
|
||
locale: locale,
|
||
Name: &InputField{
|
||
Name: "tax_name",
|
||
Label: pgettext("input", "Tax name", locale),
|
||
Type: "text",
|
||
Required: true,
|
||
},
|
||
Class: &SelectField{
|
||
Name: "tax_class",
|
||
Label: pgettext("input", "Tax Class", locale),
|
||
Options: MustGetOptions(ctx, conn, "select tax_class_id::text, name from tax_class where company_id = $1 order by name", company.Id),
|
||
Required: true,
|
||
EmptyLabel: gettext("Select a tax class", locale),
|
||
},
|
||
Rate: &InputField{
|
||
Name: "tax_rate",
|
||
Label: pgettext("input", "Rate (%)", locale),
|
||
Type: "number",
|
||
Required: true,
|
||
Attributes: []template.HTMLAttr{
|
||
"min=-99",
|
||
"max=99",
|
||
},
|
||
},
|
||
}
|
||
}
|
||
|
||
func (form *taxForm) Parse(r *http.Request) error {
|
||
if err := r.ParseForm(); err != nil {
|
||
return err
|
||
}
|
||
form.Name.FillValue(r)
|
||
form.Class.FillValue(r)
|
||
form.Rate.FillValue(r)
|
||
return nil
|
||
}
|
||
|
||
func (form *taxForm) Validate() bool {
|
||
validator := newFormValidator()
|
||
validator.CheckRequiredInput(form.Name, gettext("Tax name can not be empty.", form.locale))
|
||
validator.CheckValidSelectOption(form.Class, gettext("Selected tax class is not valid.", form.locale))
|
||
if validator.CheckRequiredInput(form.Rate, gettext("Tax rate can not be empty.", form.locale)) {
|
||
validator.CheckValidInteger(form.Rate, -99, 99, gettext("Tax rate must be an integer between -99 and 99.", form.locale))
|
||
}
|
||
return validator.AllOK()
|
||
}
|
||
|
||
func HandleDeleteCompanyTax(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
|
||
taxId, err := strconv.Atoi(params[0].Value)
|
||
if err != nil {
|
||
http.NotFound(w, r)
|
||
return
|
||
}
|
||
if err := verifyCsrfTokenValid(r); err != nil {
|
||
http.Error(w, err.Error(), http.StatusForbidden)
|
||
return
|
||
}
|
||
conn := getConn(r)
|
||
conn.MustExec(r.Context(), "delete from tax where tax_id = $1", taxId)
|
||
http.Redirect(w, r, companyURI(mustGetCompany(r), "/tax-details"), http.StatusSeeOther)
|
||
}
|
||
|
||
func HandleAddCompanyTax(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
|
||
locale := getLocale(r)
|
||
conn := getConn(r)
|
||
company := mustGetCompany(r)
|
||
form := newTaxForm(r.Context(), conn, company, locale)
|
||
if err := form.Parse(r); err != nil {
|
||
http.Error(w, err.Error(), http.StatusBadRequest)
|
||
return
|
||
}
|
||
if err := verifyCsrfTokenValid(r); err != nil {
|
||
http.Error(w, err.Error(), http.StatusForbidden)
|
||
return
|
||
}
|
||
if !form.Validate() {
|
||
w.WriteHeader(http.StatusUnprocessableEntity)
|
||
mustRenderTaxForm(w, r, form)
|
||
return
|
||
}
|
||
conn.MustExec(r.Context(), "insert into tax (company_id, tax_class_id, name, rate) values ($1, $2, $3, $4 / 100::decimal)", company.Id, form.Class, form.Name, form.Rate.Integer())
|
||
http.Redirect(w, r, companyURI(company, "/tax-details"), http.StatusSeeOther)
|
||
}
|