numerus/pkg/quote.go

1192 lines
35 KiB
Go

package pkg
import (
"archive/zip"
"bytes"
"context"
"errors"
"fmt"
"github.com/julienschmidt/httprouter"
"html/template"
"io"
"log"
"math"
"net/http"
"os"
"os/exec"
"sort"
"strconv"
"strings"
"time"
)
type QuoteEntry struct {
Slug string
Date time.Time
Number string
Total string
CustomerName string
Tags []string
Status string
StatusLabel string
}
type QuotesIndexPage struct {
Quotes []*QuoteEntry
TotalAmount string
Filters *quoteFilterForm
QuoteStatuses map[string]string
}
func IndexQuotes(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
conn := getConn(r)
locale := getLocale(r)
company := mustGetCompany(r)
filters := newQuoteFilterForm(r.Context(), conn, locale, company)
if err := filters.Parse(r); err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
page := &QuotesIndexPage{
Quotes: mustCollectQuoteEntries(r.Context(), conn, locale, filters),
TotalAmount: mustComputeQuotesTotalAmount(r.Context(), conn, filters),
Filters: filters,
QuoteStatuses: mustCollectQuoteStatuses(r.Context(), conn, locale),
}
mustRenderMainTemplate(w, r, "quotes/index.gohtml", page)
}
func mustCollectQuoteEntries(ctx context.Context, conn *Conn, locale *Locale, filters *quoteFilterForm) []*QuoteEntry {
where, args := filters.BuildQuery([]interface{}{locale.Language.String()})
rows := conn.MustQuery(ctx, fmt.Sprintf(`
select quote.slug
, quote_date
, quote_number
, coalesce(contact.name, '')
, quote.tags
, quote.quote_status
, isi18n.name
, to_price(total, decimal_digits)
from quote
left join quote_contact using (quote_id)
left join contact using (contact_id)
join quote_status_i18n isi18n on quote.quote_status = isi18n.quote_status and isi18n.lang_tag = $1
join quote_amount using (quote_id)
join currency using (currency_code)
where (%s)
order by quote_date desc
, quote_number desc
`, where), args...)
defer rows.Close()
var entries []*QuoteEntry
for rows.Next() {
entry := &QuoteEntry{}
if err := rows.Scan(&entry.Slug, &entry.Date, &entry.Number, &entry.CustomerName, &entry.Tags, &entry.Status, &entry.StatusLabel, &entry.Total); err != nil {
panic(err)
}
entries = append(entries, entry)
}
if rows.Err() != nil {
panic(rows.Err())
}
return entries
}
func mustComputeQuotesTotalAmount(ctx context.Context, conn *Conn, filters *quoteFilterForm) string {
where, args := filters.BuildQuery(nil)
return conn.MustGetText(ctx, "0", fmt.Sprintf(`
select to_price(sum(total)::integer, decimal_digits)
from quote
left join quote_contact using (quote_id)
join quote_amount using (quote_id)
join currency using (currency_code)
where (%s)
group by decimal_digits
`, where), args...)
}
func mustCollectQuoteStatuses(ctx context.Context, conn *Conn, locale *Locale) map[string]string {
rows := conn.MustQuery(ctx, "select quote_status.quote_status, isi18n.name from quote_status join quote_status_i18n isi18n using(quote_status) where isi18n.lang_tag = $1 order by quote_status", locale.Language.String())
defer rows.Close()
statuses := map[string]string{}
for rows.Next() {
var key, name string
if err := rows.Scan(&key, &name); err != nil {
panic(err)
}
statuses[key] = name
}
if rows.Err() != nil {
panic(rows.Err())
}
return statuses
}
type quoteFilterForm struct {
locale *Locale
company *Company
Customer *SelectField
QuoteStatus *SelectField
QuoteNumber *InputField
FromDate *InputField
ToDate *InputField
Tags *TagsField
TagsCondition *ToggleField
}
func newQuoteFilterForm(ctx context.Context, conn *Conn, locale *Locale, company *Company) *quoteFilterForm {
return &quoteFilterForm{
locale: locale,
company: company,
Customer: &SelectField{
Name: "customer",
Label: pgettext("input", "Customer", locale),
EmptyLabel: gettext("All customers", locale),
Options: mustGetContactOptions(ctx, conn, company),
},
QuoteStatus: &SelectField{
Name: "quote_status",
Label: pgettext("input", "Quotation Status", locale),
EmptyLabel: gettext("All status", locale),
Options: MustGetOptions(ctx, conn, "select quote_status.quote_status, isi18n.name from quote_status join quote_status_i18n isi18n using(quote_status) where isi18n.lang_tag = $1 order by quote_status", locale.Language.String()),
},
QuoteNumber: &InputField{
Name: "number",
Label: pgettext("input", "Quotation Number", locale),
Type: "search",
},
FromDate: &InputField{
Name: "from_date",
Label: pgettext("input", "From Date", locale),
Type: "date",
},
ToDate: &InputField{
Name: "to_date",
Label: pgettext("input", "To Date", locale),
Type: "date",
},
Tags: &TagsField{
Name: "tags",
Label: pgettext("input", "Tags", locale),
},
TagsCondition: &ToggleField{
Name: "tags_condition",
Label: pgettext("input", "Tags Condition", locale),
Selected: "and",
FirstOption: &ToggleOption{
Value: "and",
Label: pgettext("tag condition", "All", locale),
Description: gettext("Quotations must have all the specified labels.", locale),
},
SecondOption: &ToggleOption{
Value: "or",
Label: pgettext("tag condition", "Any", locale),
Description: gettext("Quotations must have at least one of the specified labels.", locale),
},
},
}
}
func (form *quoteFilterForm) Parse(r *http.Request) error {
if err := r.ParseForm(); err != nil {
return err
}
form.Customer.FillValue(r)
form.QuoteStatus.FillValue(r)
form.QuoteNumber.FillValue(r)
form.FromDate.FillValue(r)
form.ToDate.FillValue(r)
form.Tags.FillValue(r)
form.TagsCondition.FillValue(r)
return nil
}
func (form *quoteFilterForm) HasValue() bool {
return form.Customer.HasValue() ||
form.QuoteStatus.HasValue() ||
form.QuoteNumber.HasValue() ||
form.FromDate.HasValue() ||
form.ToDate.HasValue() ||
form.Tags.HasValue()
}
func (form *quoteFilterForm) BuildQuery(args []interface{}) (string, []interface{}) {
var where []string
appendWhere := func(expression string, value interface{}) {
args = append(args, value)
where = append(where, fmt.Sprintf(expression, len(args)))
}
maybeAppendWhere := func(expression string, value string, conv func(string) interface{}) {
if value != "" {
if conv == nil {
appendWhere(expression, value)
} else {
appendWhere(expression, conv(value))
}
}
}
appendWhere("quote.company_id = $%d", form.company.Id)
maybeAppendWhere("contact_id = $%d", form.Customer.String(), func(v string) interface{} {
customerId, _ := strconv.Atoi(form.Customer.Selected[0])
return customerId
})
maybeAppendWhere("quote.quote_status = $%d", form.QuoteStatus.String(), nil)
maybeAppendWhere("quote_number = $%d", form.QuoteNumber.String(), nil)
maybeAppendWhere("quote_date >= $%d", form.FromDate.String(), nil)
maybeAppendWhere("quote_date <= $%d", form.ToDate.String(), nil)
if len(form.Tags.Tags) > 0 {
if form.TagsCondition.Selected == "and" {
appendWhere("quote.tags @> $%d", form.Tags)
} else {
appendWhere("quote.tags && $%d", form.Tags)
}
}
return strings.Join(where, ") AND ("), args
}
func ServeQuote(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
conn := getConn(r)
company := mustGetCompany(r)
slug := params[0].Value
switch slug {
case "new":
locale := getLocale(r)
form := newQuoteForm(r.Context(), conn, locale, company)
if quoteToDuplicate := r.URL.Query().Get("duplicate"); ValidUuid(quoteToDuplicate) {
form.MustFillFromDatabase(r.Context(), conn, quoteToDuplicate)
form.QuoteStatus.Selected = []string{"created"}
}
form.Date.Val = time.Now().Format("2006-01-02")
w.WriteHeader(http.StatusOK)
mustRenderNewQuoteForm(w, r, form)
case "product-form":
query := r.URL.Query()
index, _ := strconv.Atoi(query.Get("index"))
form := newQuoteProductForm(index, company, getLocale(r), mustGetTaxOptions(r.Context(), conn, company))
productSlug := query.Get("slug")
if len(productSlug) > 0 {
if !form.MustFillFromDatabase(r.Context(), conn, productSlug) {
http.NotFound(w, r)
return
}
quantity, _ := strconv.Atoi(query.Get("product.quantity." + strconv.Itoa(index)))
if quantity > 0 {
form.Quantity.Val = strconv.Itoa(quantity)
}
w.Header().Set(HxTriggerAfterSettle, "recompute")
}
mustRenderStandaloneTemplate(w, r, "quotes/product-form.gohtml", form)
default:
pdf := false
if strings.HasSuffix(slug, ".pdf") {
pdf = true
slug = slug[:len(slug)-len(".pdf")]
}
if !ValidUuid(slug) {
http.NotFound(w, r)
return
}
quo := mustGetQuote(r.Context(), conn, company, slug)
if quo == nil {
http.NotFound(w, r)
return
}
if pdf {
w.Header().Set("Content-Type", "application/pdf")
mustWriteQuotePdf(w, r, quo)
} else {
mustRenderMainTemplate(w, r, "quotes/view.gohtml", quo)
}
}
}
func mustWriteQuotePdf(w io.Writer, r *http.Request, quo *quote) {
cmd := exec.Command("weasyprint", "--stylesheet", "web/static/invoice.css", "-", "-")
var stderr bytes.Buffer
cmd.Stderr = &stderr
stdin, err := cmd.StdinPipe()
if err != nil {
panic(err)
}
stdout, err := cmd.StdoutPipe()
if err != nil {
panic(err)
}
defer func() {
err := stdout.Close()
if !errors.Is(err, os.ErrClosed) {
panic(err)
}
}()
if err = cmd.Start(); err != nil {
panic(err)
}
go func() {
defer mustClose(stdin)
mustRenderAppTemplate(stdin, r, "quotes/view.gohtml", quo)
}()
if _, err = io.Copy(w, stdout); err != nil {
panic(err)
}
if err := cmd.Wait(); err != nil {
log.Printf("ERR - %v\n", stderr.String())
panic(err)
}
}
type quote struct {
Number string
Slug string
Date time.Time
Quoter taxDetails
HasQuotee bool
HasTaxDetails bool
Quotee taxDetails
TermsAndConditions string
Notes string
PaymentInstructions string
Products []*quoteProduct
Subtotal string
Taxes [][]string
TaxClasses []string
HasDiscounts bool
Total string
LegalDisclaimer string
}
type quoteProduct struct {
Name string
Description string
Price string
Discount int
Quantity int
Taxes map[string]int
Subtotal string
Total string
}
func mustGetQuote(ctx context.Context, conn *Conn, company *Company, slug string) *quote {
quo := &quote{
Slug: slug,
}
var quoteId int
var decimalDigits int
if notFoundErrorOrPanic(conn.QueryRow(ctx, `
select quote_id
, decimal_digits
, quote_number
, quote_date
, terms_and_conditions
, notes
, coalesce(instructions, '')
, contact_id is not null
, coalesce(business_name, contact.name, '')
, contact_tax_details.contact_id is not null
, coalesce(vatin::text, '')
, coalesce(address, '')
, coalesce(city, '')
, coalesce(province, '')
, coalesce(postal_code, '')
, to_price(subtotal, decimal_digits)
, to_price(total, decimal_digits)
from quote
left join quote_payment_method using (quote_id)
left join payment_method using (payment_method_id)
left join quote_contact using (quote_id)
left join contact using (contact_id)
left join contact_tax_details using (contact_id)
join quote_amount using (quote_id)
join currency using (currency_code)
where quote.slug = $1`, slug).Scan(
&quoteId,
&decimalDigits,
&quo.Number,
&quo.Date,
&quo.TermsAndConditions,
&quo.Notes,
&quo.PaymentInstructions,
&quo.HasQuotee,
&quo.Quotee.Name,
&quo.HasTaxDetails,
&quo.Quotee.VATIN,
&quo.Quotee.Address,
&quo.Quotee.City,
&quo.Quotee.Province,
&quo.Quotee.PostalCode,
&quo.Subtotal,
&quo.Total)) {
return nil
}
if err := conn.QueryRow(ctx, `
select business_name
, vatin, phone
, email
, address
, city
, province
, postal_code
, legal_disclaimer
from company
where company_id = $1
`, company.Id).Scan(
&quo.Quoter.Name,
&quo.Quoter.VATIN,
&quo.Quoter.Phone,
&quo.Quoter.Email,
&quo.Quoter.Address,
&quo.Quoter.City,
&quo.Quoter.Province,
&quo.Quoter.PostalCode,
&quo.LegalDisclaimer); err != nil {
panic(err)
}
if err := conn.QueryRow(ctx, `
select array_agg(array[name, to_price(amount, $2)]) from quote_tax_amount
join tax using (tax_id)
where quote_id = $1
`, quoteId, decimalDigits).Scan(&quo.Taxes); err != nil {
panic(err)
}
rows := conn.MustQuery(ctx, `
select quote_product.name
, description
, to_price(price, $2)
, (discount_rate * 100)::integer
, quantity, to_price(subtotal, $2)
, to_price(total, $2)
, array_agg(array[tax_class.name, (tax_rate * 100)::integer::text]) filter (where tax_rate is not null)
from quote_product
join quote_product_amount using (quote_product_id)
left join quote_product_tax using (quote_product_id)
left join tax using (tax_id)
left join tax_class using (tax_class_id)
where quote_id = $1
group by quote_product_id
, quote_product.name
, description
, discount_rate
, price
, quantity
, subtotal
, total
order by quote_product_id
`, quoteId, decimalDigits)
defer rows.Close()
taxClasses := map[string]bool{}
for rows.Next() {
product := &quoteProduct{
Taxes: make(map[string]int),
}
var taxes [][]string
if err := rows.Scan(
&product.Name,
&product.Description,
&product.Price,
&product.Discount,
&product.Quantity,
&product.Subtotal,
&product.Total,
&taxes); err != nil {
panic(err)
}
for _, tax := range taxes {
taxClass := tax[0]
taxClasses[taxClass] = true
product.Taxes[taxClass], _ = strconv.Atoi(tax[1])
}
if product.Discount > 0 {
quo.HasDiscounts = true
}
quo.Products = append(quo.Products, product)
}
for taxClass := range taxClasses {
quo.TaxClasses = append(quo.TaxClasses, taxClass)
}
sort.Strings(quo.TaxClasses)
if rows.Err() != nil {
panic(rows.Err())
}
return quo
}
type newQuotePage struct {
Form *quoteForm
Subtotal string
Taxes [][]string
Total string
}
func newNewQuotePage(form *quoteForm, r *http.Request) *newQuotePage {
page := &newQuotePage{
Form: form,
}
conn := getConn(r)
company := mustGetCompany(r)
err := conn.QueryRow(r.Context(), "select subtotal, taxes, total from compute_new_quote_amount($1, $2)", company.Id, NewQuoteProductArray(form.Products)).Scan(&page.Subtotal, &page.Taxes, &page.Total)
if err != nil {
panic(err)
}
if len(form.Products) == 0 {
form.Products = append(form.Products, newQuoteProductForm(0, company, getLocale(r), mustGetTaxOptions(r.Context(), conn, company)))
}
return page
}
func mustRenderNewQuoteForm(w http.ResponseWriter, r *http.Request, form *quoteForm) {
page := newNewQuotePage(form, r)
mustRenderMainTemplate(w, r, "quotes/new.gohtml", page)
}
func mustRenderNewQuoteProductsForm(w http.ResponseWriter, r *http.Request, action string, form *quoteForm) {
conn := getConn(r)
company := mustGetCompany(r)
page := newQuoteProductsPage{
Action: companyURI(company, action),
Form: form,
Products: mustGetProductChoices(r.Context(), conn, company),
}
mustRenderMainTemplate(w, r, "quotes/products.gohtml", page)
}
type newQuoteProductsPage struct {
Action string
Form *quoteForm
Products []*productChoice
}
func HandleAddQuote(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
locale := getLocale(r)
conn := getConn(r)
company := mustGetCompany(r)
form := newQuoteForm(r.Context(), conn, locale, company)
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)
mustRenderNewQuoteForm(w, r, form)
return
}
slug := conn.MustGetText(r.Context(), "", "select add_quote($1, $2, $3, $4, $5, $6, $7, $8)", company.Id, form.Date, form.Customer.OrNull(), form.TermsAndConditions, form.Notes, form.PaymentMethod.OrNull(), form.Tags, NewQuoteProductArray(form.Products))
htmxRedirect(w, r, companyURI(company, "/quotes/"+slug))
}
func HandleNewQuoteAction(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
switch params[0].Value {
case "new":
handleQuoteAction(w, r, "/quotes/new", mustRenderNewQuoteForm)
case "batch":
HandleBatchQuoteAction(w, r, params)
default:
http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
}
}
func HandleBatchQuoteAction(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
if err := r.ParseForm(); err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
if err := verifyCsrfTokenValid(r); err != nil {
http.Error(w, err.Error(), http.StatusForbidden)
return
}
locale := getLocale(r)
switch r.Form.Get("action") {
case "download":
slugs := r.Form["quote"]
if len(slugs) == 0 {
http.Redirect(w, r, companyURI(mustGetCompany(r), "/quotes"), http.StatusSeeOther)
return
}
quotes := mustWriteQuotesPdf(r, slugs)
w.Header().Set("Content-Type", "application/zip")
w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=%s", gettext("quotations.zip", locale)))
w.WriteHeader(http.StatusOK)
if _, err := w.Write(quotes); err != nil {
panic(err)
}
case "export":
conn := getConn(r)
company := getCompany(r)
filters := newQuoteFilterForm(r.Context(), conn, locale, company)
if err := filters.Parse(r); err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
ods := mustWriteQuotesOds(mustCollectQuoteEntries(r.Context(), conn, locale, filters), locale, company)
writeOdsResponse(w, ods, gettext("quotations.ods", locale))
default:
http.Error(w, gettext("Invalid action", locale), http.StatusBadRequest)
}
}
func mustWriteQuotesPdf(r *http.Request, slugs []string) []byte {
conn := getConn(r)
company := mustGetCompany(r)
buf := new(bytes.Buffer)
w := zip.NewWriter(buf)
for _, slug := range slugs {
quo := mustGetQuote(r.Context(), conn, company, slug)
if quo == nil {
continue
}
f, err := w.Create(quo.Number + ".pdf")
if err != nil {
panic(err)
}
mustWriteQuotePdf(f, r, quo)
}
mustClose(w)
return buf.Bytes()
}
type quoteForm struct {
locale *Locale
company *Company
Number string
QuoteStatus *SelectField
Customer *SelectField
Date *InputField
TermsAndConditions *InputField
Notes *InputField
PaymentMethod *SelectField
Tags *TagsField
Products []*quoteProductForm
RemovedProduct *quoteProductForm
}
func newQuoteForm(ctx context.Context, conn *Conn, locale *Locale, company *Company) *quoteForm {
return &quoteForm{
locale: locale,
company: company,
QuoteStatus: &SelectField{
Name: "quote_status",
Required: true,
Label: pgettext("input", "Quotation Status", locale),
Selected: []string{"created"},
Options: MustGetOptions(ctx, conn, "select quote_status.quote_status, isi18n.name from quote_status join quote_status_i18n isi18n using(quote_status) where isi18n.lang_tag = $1 order by quote_status", locale.Language.String()),
},
Customer: &SelectField{
Name: "customer",
Label: pgettext("input", "Customer", locale),
EmptyLabel: gettext("Select a customer to quote.", locale),
Options: mustGetContactOptions(ctx, conn, company),
},
Date: &InputField{
Name: "date",
Label: pgettext("input", "Quotation Date", locale),
Type: "date",
Required: true,
},
TermsAndConditions: &InputField{
Name: "terms_and_conditions",
Label: pgettext("input", "Terms and conditions", locale),
Type: "textarea",
},
Notes: &InputField{
Name: "notes",
Label: pgettext("input", "Notes", locale),
Type: "textarea",
},
Tags: &TagsField{
Name: "tags",
Label: pgettext("input", "Tags", locale),
},
PaymentMethod: &SelectField{
Name: "payment_method",
Label: pgettext("input", "Payment Method", locale),
EmptyLabel: gettext("Select a payment method.", locale),
Options: mustGetPaymentMethodOptions(ctx, conn, company),
},
}
}
func (form *quoteForm) Parse(r *http.Request) error {
if err := r.ParseForm(); err != nil {
return err
}
form.QuoteStatus.FillValue(r)
form.Customer.FillValue(r)
form.Date.FillValue(r)
form.TermsAndConditions.FillValue(r)
form.Notes.FillValue(r)
form.Tags.FillValue(r)
form.PaymentMethod.FillValue(r)
if _, ok := r.Form["product.id.0"]; ok {
taxOptions := mustGetTaxOptions(r.Context(), getConn(r), form.company)
for index := 0; true; index++ {
if _, ok := r.Form["product.id."+strconv.Itoa(index)]; !ok {
break
}
productForm := newQuoteProductForm(index, form.company, form.locale, taxOptions)
if err := productForm.Parse(r); err != nil {
return err
}
form.Products = append(form.Products, productForm)
}
}
return nil
}
func (form *quoteForm) Validate() bool {
validator := newFormValidator()
validator.CheckValidSelectOption(form.QuoteStatus, gettext("Selected quotation status is not valid.", form.locale))
if form.Customer.String() != "" {
validator.CheckValidSelectOption(form.Customer, gettext("Selected customer is not valid.", form.locale))
}
if validator.CheckRequiredInput(form.Date, gettext("Quotation date can not be empty.", form.locale)) {
validator.CheckValidDate(form.Date, gettext("Quotation date must be a valid date.", form.locale))
}
if form.PaymentMethod.String() != "" {
validator.CheckValidSelectOption(form.PaymentMethod, gettext("Selected payment method is not valid.", form.locale))
}
allOK := validator.AllOK()
for _, product := range form.Products {
allOK = product.Validate() && allOK
}
return allOK
}
func (form *quoteForm) Update() {
products := form.Products
form.Products = nil
for n, product := range products {
if product.Quantity.Val != "0" {
product.Update()
if n != len(form.Products) {
product.Index = len(form.Products)
product.Rename()
}
form.Products = append(form.Products, product)
}
}
}
func (form *quoteForm) RemoveProduct(index int) {
products := form.Products
form.Products = nil
for n, product := range products {
if n == index {
form.RemovedProduct = product
} else {
if n != len(form.Products) {
product.Index = len(form.Products)
product.Rename()
}
form.Products = append(form.Products, product)
}
}
if form.RemovedProduct != nil {
form.RemovedProduct.RenameWithSuffix(removedProductSuffix)
}
}
func (form *quoteForm) AddProducts(ctx context.Context, conn *Conn, productsSlug []string) {
form.mustAddProductsFromQuery(ctx, conn, selectProductBySlug, productsSlug)
}
func (form *quoteForm) mustAddProductsFromQuery(ctx context.Context, conn *Conn, sql string, args ...interface{}) {
index := len(form.Products)
taxOptions := mustGetTaxOptions(ctx, conn, form.company)
rows := conn.MustQuery(ctx, sql, args...)
defer rows.Close()
for rows.Next() {
product := newQuoteProductForm(index, form.company, form.locale, taxOptions)
if err := rows.Scan(product.QuoteProductId, product.ProductId, product.Name, product.Description, product.Price, product.Quantity, product.Discount, product.Tax); err != nil {
panic(err)
}
form.Products = append(form.Products, product)
index++
}
if rows.Err() != nil {
panic(rows.Err())
}
}
func (form *quoteForm) InsertProduct(product *quoteProductForm) {
replaced := false
for n, existing := range form.Products {
if existing.Quantity.Val == "" || existing.Quantity.Val == "0" {
product.Index = n
form.Products[n] = product
replaced = true
break
}
}
if !replaced {
product.Index = len(form.Products)
form.Products = append(form.Products, product)
}
product.Rename()
}
func (form *quoteForm) MustFillFromDatabase(ctx context.Context, conn *Conn, slug string) bool {
var quoteId int
selectedQuoteStatus := form.QuoteStatus.Selected
form.QuoteStatus.Clear()
selectedPaymentMethod := form.PaymentMethod.Selected
form.PaymentMethod.Clear()
if notFoundErrorOrPanic(conn.QueryRow(ctx, `
select quote_id
, quote_status
, contact_id
, quote_number
, quote_date
, terms_and_conditions
, notes
, payment_method_id
, tags
from quote
left join quote_contact using (quote_id)
left join quote_payment_method using (quote_id)
where slug = $1
`, slug).Scan(&quoteId, form.QuoteStatus, form.Customer, &form.Number, form.Date, form.TermsAndConditions, form.Notes, form.PaymentMethod, form.Tags)) {
form.PaymentMethod.Selected = selectedPaymentMethod
form.QuoteStatus.Selected = selectedQuoteStatus
return false
}
form.Products = []*quoteProductForm{}
form.mustAddProductsFromQuery(ctx, conn, "select quote_product_id::text, coalesce(product_id, 0), name, description, to_price(price, $2), quantity, (discount_rate * 100)::integer, array_remove(array_agg(tax_id), null) from quote_product left join quote_product_product using (quote_product_id) left join quote_product_tax using (quote_product_id) where quote_id = $1 group by quote_product_id, coalesce(product_id, 0), name, description, discount_rate, price, quantity", quoteId, form.company.DecimalDigits)
return true
}
type quoteProductForm struct {
locale *Locale
company *Company
Index int
QuoteProductId *InputField
ProductId *InputField
Name *InputField
Description *InputField
Price *InputField
Quantity *InputField
Discount *InputField
Tax *SelectField
}
func newQuoteProductForm(index int, company *Company, locale *Locale, taxOptions []*SelectOption) *quoteProductForm {
triggerRecompute := template.HTMLAttr(`data-hx-on="change: this.dispatchEvent(new CustomEvent('recompute', {bubbles: true}))"`)
form := &quoteProductForm{
locale: locale,
company: company,
Index: index,
QuoteProductId: &InputField{
Label: pgettext("input", "Id", locale),
Type: "hidden",
Required: true,
},
ProductId: &InputField{
Label: pgettext("input", "Id", locale),
Type: "hidden",
Required: true,
},
Name: &InputField{
Label: pgettext("input", "Name", locale),
Type: "text",
Required: true,
Is: "numerus-product-search",
Attributes: []template.HTMLAttr{
`autocomplete="off"`,
`data-hx-trigger="keyup changed delay:200"`,
`data-hx-target="next .options"`,
`data-hx-indicator="closest div"`,
`data-hx-swap="innerHTML"`,
template.HTMLAttr(fmt.Sprintf(`data-hx-get="%v"`, companyURI(company, "/search/products"))),
},
},
Description: &InputField{
Label: pgettext("input", "Description", locale),
Type: "textarea",
},
Price: &InputField{
Label: pgettext("input", "Price", locale),
Type: "number",
Required: true,
Attributes: []template.HTMLAttr{
triggerRecompute,
`min="0"`,
template.HTMLAttr(fmt.Sprintf(`step="%v"`, company.MinCents())),
},
},
Quantity: &InputField{
Label: pgettext("input", "Quantity", locale),
Type: "number",
Required: true,
Attributes: []template.HTMLAttr{
triggerRecompute,
`min="0"`,
},
},
Discount: &InputField{
Label: pgettext("input", "Discount (%)", locale),
Type: "number",
Required: true,
Attributes: []template.HTMLAttr{
triggerRecompute,
`min="0"`,
`max="100"`,
},
},
Tax: &SelectField{
Label: pgettext("input", "Taxes", locale),
Multiple: true,
Options: taxOptions,
Attributes: []template.HTMLAttr{
triggerRecompute,
},
},
}
form.Rename()
return form
}
func (form *quoteProductForm) Rename() {
form.RenameWithSuffix("." + strconv.Itoa(form.Index))
}
func (form *quoteProductForm) RenameWithSuffix(suffix string) {
form.QuoteProductId.Name = "product.quote_product_id" + suffix
form.ProductId.Name = "product.id" + suffix
form.Name.Name = "product.name" + suffix
form.Description.Name = "product.description" + suffix
form.Price.Name = "product.price" + suffix
form.Quantity.Name = "product.quantity" + suffix
form.Discount.Name = "product.discount" + suffix
form.Tax.Name = "product.tax" + suffix
}
func (form *quoteProductForm) Parse(r *http.Request) error {
if err := r.ParseForm(); err != nil {
return err
}
form.QuoteProductId.FillValue(r)
form.ProductId.FillValue(r)
form.Name.FillValue(r)
form.Description.FillValue(r)
form.Price.FillValue(r)
form.Quantity.FillValue(r)
form.Discount.FillValue(r)
form.Tax.FillValue(r)
return nil
}
func (form *quoteProductForm) Validate() bool {
validator := newFormValidator()
if form.QuoteProductId.Val != "" {
validator.CheckValidInteger(form.QuoteProductId, 1, math.MaxInt32, gettext("Quotation product ID must be a number greater than zero.", form.locale))
}
if form.ProductId.Val != "" {
validator.CheckValidInteger(form.ProductId, 0, math.MaxInt32, gettext("Product ID must be a positive number or zero.", form.locale))
}
validator.CheckRequiredInput(form.Name, gettext("Name can not be empty.", form.locale))
if validator.CheckRequiredInput(form.Price, gettext("Price can not be empty.", form.locale)) {
validator.CheckValidDecimal(form.Price, form.company.MinCents(), math.MaxFloat64, gettext("Price must be a number greater than zero.", form.locale))
}
if validator.CheckRequiredInput(form.Quantity, gettext("Quantity can not be empty.", form.locale)) {
validator.CheckValidInteger(form.Quantity, 1, math.MaxInt32, gettext("Quantity must be a number greater than zero.", form.locale))
}
if validator.CheckRequiredInput(form.Discount, gettext("Discount can not be empty.", form.locale)) {
validator.CheckValidInteger(form.Discount, 0, 100, gettext("Discount must be a percentage between 0 and 100.", form.locale))
}
validator.CheckValidSelectOption(form.Tax, gettext("Selected tax is not valid.", form.locale))
validator.CheckAtMostOneOfEachGroup(form.Tax, gettext("You can only select a tax of each class.", form.locale))
return validator.AllOK()
}
func (form *quoteProductForm) Update() {
validator := newFormValidator()
if !validator.CheckValidDecimal(form.Price, form.company.MinCents(), math.MaxFloat64, "") {
form.Price.Val = "0.0"
form.Price.Errors = nil
}
if !validator.CheckValidInteger(form.Quantity, 0, math.MaxInt32, "") {
form.Quantity.Val = "1"
form.Quantity.Errors = nil
}
if !validator.CheckValidInteger(form.Discount, 0, 100, "") {
form.Discount.Val = "0"
form.Discount.Errors = nil
}
}
func (form *quoteProductForm) MustFillFromDatabase(ctx context.Context, conn *Conn, slug string) bool {
return !notFoundErrorOrPanic(conn.QueryRow(ctx, selectProductBySlug, []string{slug}).Scan(
form.QuoteProductId,
form.ProductId,
form.Name,
form.Description,
form.Price,
form.Quantity,
form.Discount,
form.Tax))
}
func HandleUpdateQuote(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
locale := getLocale(r)
conn := getConn(r)
company := mustGetCompany(r)
form := newQuoteForm(r.Context(), conn, locale, company)
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
}
slug := params[0].Value
if !ValidUuid(slug) {
http.NotFound(w, r)
return
}
if r.FormValue("quick") == "status" {
slug = conn.MustGetText(r.Context(), "", "update quote set quote_status = $1 where slug = $2 returning slug", form.QuoteStatus, slug)
if slug == "" {
http.NotFound(w, r)
return
}
htmxRedirect(w, r, companyURI(mustGetCompany(r), "/quotes"))
} else {
if !form.Validate() {
w.WriteHeader(http.StatusUnprocessableEntity)
mustRenderEditQuoteForm(w, r, slug, form)
return
}
slug = conn.MustGetText(r.Context(), "", "select edit_quote($1, $2, $3, $4, $5, $6, $7, $8)", slug, form.QuoteStatus, form.Customer.OrNull(), form.TermsAndConditions, form.Notes, form.PaymentMethod.OrNull(), form.Tags, EditedQuoteProductArray(form.Products))
if slug == "" {
http.NotFound(w, r)
return
}
htmxRedirect(w, r, companyURI(company, "/quotes/"+slug))
}
}
func ServeEditQuote(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
conn := getConn(r)
company := mustGetCompany(r)
slug := params[0].Value
if !ValidUuid(slug) {
http.NotFound(w, r)
return
}
locale := getLocale(r)
form := newQuoteForm(r.Context(), conn, locale, company)
if !form.MustFillFromDatabase(r.Context(), conn, slug) {
http.NotFound(w, r)
return
}
w.WriteHeader(http.StatusOK)
mustRenderEditQuoteForm(w, r, slug, form)
}
type editQuotePage struct {
*newQuotePage
Slug string
Number string
}
func newEditQuotePage(slug string, form *quoteForm, r *http.Request) *editQuotePage {
return &editQuotePage{
newNewQuotePage(form, r),
slug,
form.Number,
}
}
func mustRenderEditQuoteForm(w http.ResponseWriter, r *http.Request, slug string, form *quoteForm) {
page := newEditQuotePage(slug, form, r)
mustRenderMainTemplate(w, r, "quotes/edit.gohtml", page)
}
func HandleEditQuoteAction(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
slug := params[0].Value
if !ValidUuid(slug) {
http.NotFound(w, r)
return
}
actionUri := fmt.Sprintf("/quotes/%s/edit", slug)
handleQuoteAction(w, r, actionUri, func(w http.ResponseWriter, r *http.Request, form *quoteForm) {
conn := getConn(r)
form.Number = conn.MustGetText(r.Context(), "", "select quote_number from quote where slug = $1", slug)
mustRenderEditQuoteForm(w, r, slug, form)
})
}
type renderQuoteFormFunc func(w http.ResponseWriter, r *http.Request, form *quoteForm)
func handleQuoteAction(w http.ResponseWriter, r *http.Request, action string, renderForm renderQuoteFormFunc) {
locale := getLocale(r)
conn := getConn(r)
company := mustGetCompany(r)
form := newQuoteForm(r.Context(), conn, locale, company)
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
}
actionField := r.Form.Get("action")
switch actionField {
case "update":
form.Update()
w.WriteHeader(http.StatusOK)
renderForm(w, r, form)
case "select-products":
w.WriteHeader(http.StatusOK)
mustRenderNewQuoteProductsForm(w, r, action, form)
case "add-products":
form.AddProducts(r.Context(), conn, r.Form["slug"])
w.WriteHeader(http.StatusOK)
renderForm(w, r, form)
case "restore-product":
restoredProduct := newQuoteProductForm(0, company, locale, mustGetTaxOptions(r.Context(), conn, company))
restoredProduct.RenameWithSuffix(removedProductSuffix)
if err := restoredProduct.Parse(r); err != nil {
panic(err)
}
form.InsertProduct(restoredProduct)
form.Update()
w.WriteHeader(http.StatusOK)
renderForm(w, r, form)
default:
prefix := "remove-product."
if strings.HasPrefix(actionField, prefix) {
index, err := strconv.Atoi(actionField[len(prefix):])
if err != nil {
http.Error(w, gettext("Invalid action", locale), http.StatusBadRequest)
} else {
form.RemoveProduct(index)
form.Update()
w.WriteHeader(http.StatusOK)
renderForm(w, r, form)
}
} else {
http.Error(w, gettext("Invalid action", locale), http.StatusBadRequest)
}
}
}
func ServeEditQuoteTags(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
serveTagsEditForm(w, r, params, "/quotes/", "select tags from quote where slug = $1")
}
func HandleUpdateQuoteTags(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
handleUpdateTags(w, r, params, "/quotes/", "update quote set tags = $1 where slug = $2 returning slug")
}