468 lines
14 KiB
Go
468 lines
14 KiB
Go
package pkg
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import (
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"context"
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"fmt"
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"github.com/julienschmidt/httprouter"
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"html/template"
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"math"
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"net/http"
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"strconv"
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"strings"
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"time"
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)
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type ExpenseEntry struct {
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Slug string
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InvoiceDate time.Time
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InvoiceNumber string
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Amount string
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InvoicerName string
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OriginalFileName string
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Tags []string
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}
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type expensesIndexPage struct {
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Expenses []*ExpenseEntry
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TotalAmount string
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Filters *expenseFilterForm
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}
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func IndexExpenses(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
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conn := getConn(r)
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locale := getLocale(r)
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company := mustGetCompany(r)
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filters := newExpenseFilterForm(r.Context(), conn, locale, company)
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if err := filters.Parse(r); err != nil {
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
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page := &expensesIndexPage{
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Expenses: mustCollectExpenseEntries(r.Context(), conn, company, filters),
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TotalAmount: mustComputeExpensesTotalAmount(r.Context(), conn, filters),
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Filters: filters,
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}
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mustRenderMainTemplate(w, r, "expenses/index.gohtml", page)
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}
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func mustCollectExpenseEntries(ctx context.Context, conn *Conn, company *Company, filters *expenseFilterForm) []*ExpenseEntry {
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where, args := filters.BuildQuery(nil)
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rows := conn.MustQuery(ctx, fmt.Sprintf(`
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select expense.slug
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, invoice_date
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, invoice_number
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, to_price(amount, decimal_digits)
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, contact.name
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, coalesce(attachment.original_filename, '')
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, expense.tags
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from expense
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left join expense_attachment as attachment using (expense_id)
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join contact using (contact_id)
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join currency using (currency_code)
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where (%s)
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order by invoice_date
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`, where), args...)
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defer rows.Close()
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var entries []*ExpenseEntry
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for rows.Next() {
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entry := &ExpenseEntry{}
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if err := rows.Scan(&entry.Slug, &entry.InvoiceDate, &entry.InvoiceNumber, &entry.Amount, &entry.InvoicerName, &entry.OriginalFileName, &entry.Tags); err != nil {
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panic(err)
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}
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entries = append(entries, entry)
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}
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if rows.Err() != nil {
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panic(rows.Err())
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}
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return entries
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}
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func mustComputeExpensesTotalAmount(ctx context.Context, conn *Conn, filters *expenseFilterForm) string {
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where, args := filters.BuildQuery(nil)
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return conn.MustGetText(ctx, "0", fmt.Sprintf(`
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select to_price(sum(amount)::integer, decimal_digits)
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from expense
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join currency using (currency_code)
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where (%s)
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group by decimal_digits
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`, where), args...)
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}
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func ServeExpenseForm(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
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locale := getLocale(r)
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conn := getConn(r)
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company := mustGetCompany(r)
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form := newExpenseForm(r.Context(), conn, locale, company)
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slug := params[0].Value
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if slug == "new" {
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w.WriteHeader(http.StatusOK)
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form.InvoiceDate.Val = time.Now().Format("2006-01-02")
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mustRenderNewExpenseForm(w, r, form)
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return
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}
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if !form.MustFillFromDatabase(r.Context(), conn, slug) {
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http.NotFound(w, r)
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return
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}
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w.WriteHeader(http.StatusOK)
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mustRenderEditExpenseForm(w, r, slug, form)
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}
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func mustRenderNewExpenseForm(w http.ResponseWriter, r *http.Request, form *expenseForm) {
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locale := getLocale(r)
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form.Invoicer.EmptyLabel = gettext("Select a contact.", locale)
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mustRenderMainTemplate(w, r, "expenses/new.gohtml", form)
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}
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func mustRenderEditExpenseForm(w http.ResponseWriter, r *http.Request, slug string, form *expenseForm) {
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page := &editExpensePage{
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Slug: slug,
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Form: form,
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}
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mustRenderMainTemplate(w, r, "expenses/edit.gohtml", page)
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}
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type editExpensePage struct {
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Slug string
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Form *expenseForm
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}
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type expenseForm struct {
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locale *Locale
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company *Company
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Invoicer *SelectField
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InvoiceNumber *InputField
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InvoiceDate *InputField
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Tax *SelectField
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Amount *InputField
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File *FileField
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Tags *TagsField
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}
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func newExpenseForm(ctx context.Context, conn *Conn, locale *Locale, company *Company) *expenseForm {
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return &expenseForm{
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locale: locale,
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company: company,
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Invoicer: &SelectField{
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Name: "invoicer",
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Label: pgettext("input", "Contact", locale),
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Required: true,
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Options: mustGetContactOptions(ctx, conn, company),
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},
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InvoiceNumber: &InputField{
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Name: "invoice_number",
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Label: pgettext("input", "Invoice number", locale),
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Type: "text",
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},
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InvoiceDate: &InputField{
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Name: "invoice_date",
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Label: pgettext("input", "Invoice Date", locale),
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Required: true,
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Type: "date",
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},
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Tax: &SelectField{
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Name: "tax",
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Label: pgettext("input", "Taxes", locale),
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Multiple: true,
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Options: mustGetTaxOptions(ctx, conn, company),
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},
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Amount: &InputField{
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Name: "amount",
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Label: pgettext("input", "Amount", locale),
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Type: "number",
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Required: true,
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Attributes: []template.HTMLAttr{
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`min="0"`,
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template.HTMLAttr(fmt.Sprintf(`step="%v"`, company.MinCents())),
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},
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},
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File: &FileField{
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Name: "file",
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Label: pgettext("input", "File", locale),
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MaxSize: 1 << 20,
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},
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Tags: &TagsField{
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Name: "tags",
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Label: pgettext("input", "Tags", locale),
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},
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}
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}
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func (form *expenseForm) Parse(r *http.Request) error {
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if err := r.ParseMultipartForm(form.File.MaxSize); err != nil {
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return err
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}
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form.Invoicer.FillValue(r)
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form.InvoiceNumber.FillValue(r)
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form.InvoiceDate.FillValue(r)
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form.Tax.FillValue(r)
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form.Amount.FillValue(r)
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if err := form.File.FillValue(r); err != nil {
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return err
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}
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form.Tags.FillValue(r)
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return nil
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}
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func (form *expenseForm) Validate() bool {
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validator := newFormValidator()
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validator.CheckValidSelectOption(form.Invoicer, gettext("Selected contact is not valid.", form.locale))
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validator.CheckValidDate(form.InvoiceDate, gettext("Invoice date must be a valid date.", form.locale))
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validator.CheckValidSelectOption(form.Tax, gettext("Selected tax is not valid.", form.locale))
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validator.CheckAtMostOneOfEachGroup(form.Tax, gettext("You can only select a tax of each class.", form.locale))
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if validator.CheckRequiredInput(form.Amount, gettext("Amount can not be empty.", form.locale)) {
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validator.CheckValidDecimal(form.Amount, form.company.MinCents(), math.MaxFloat64, gettext("Amount must be a number greater than zero.", form.locale))
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}
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validator.CheckValidSelectOption(form.Tax, gettext("Selected tax is not valid.", form.locale))
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validator.CheckAtMostOneOfEachGroup(form.Tax, gettext("You can only select a tax of each class.", form.locale))
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return validator.AllOK()
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}
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func (form *expenseForm) MustFillFromDatabase(ctx context.Context, conn *Conn, slug string) bool {
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return !notFoundErrorOrPanic(conn.QueryRow(ctx, `
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select contact_id
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, invoice_number
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, invoice_date
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, to_price(amount, decimal_digits)
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, array_agg(tax_id)
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, tags
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from expense
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left join expense_tax using (expense_id)
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join currency using (currency_code)
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where expense.slug = $1
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group by contact_id
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, invoice_number
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, invoice_date
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, amount
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, decimal_digits
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, tags
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`, slug).Scan(
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form.Invoicer,
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form.InvoiceNumber,
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form.InvoiceDate,
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form.Amount,
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form.Tax,
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form.Tags))
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}
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func HandleAddExpense(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
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conn := getConn(r)
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locale := getLocale(r)
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company := mustGetCompany(r)
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form := newExpenseForm(r.Context(), conn, locale, company)
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if err := form.Parse(r); err != nil {
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
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if err := verifyCsrfTokenValid(r); err != nil {
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http.Error(w, err.Error(), http.StatusForbidden)
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return
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}
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if !form.Validate() {
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if !IsHTMxRequest(r) {
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w.WriteHeader(http.StatusUnprocessableEntity)
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}
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mustRenderNewExpenseForm(w, r, form)
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return
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}
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taxes := mustSliceAtoi(form.Tax.Selected)
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slug := conn.MustGetText(r.Context(), "", "select add_expense($1, $2, $3, $4, $5, $6, $7)", company.Id, form.InvoiceDate, form.Invoicer, form.InvoiceNumber, form.Amount, taxes, form.Tags)
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if len(form.File.Content) > 0 {
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conn.MustQuery(r.Context(), "select attach_to_expense($1, $2, $3, $4)", slug, form.File.OriginalFileName, form.File.ContentType, form.File.Content)
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}
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htmxRedirect(w, r, companyURI(company, "/expenses"))
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}
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func HandleUpdateExpense(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
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conn := getConn(r)
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locale := getLocale(r)
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company := mustGetCompany(r)
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form := newExpenseForm(r.Context(), conn, locale, company)
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if err := form.Parse(r); err != nil {
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
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if err := verifyCsrfTokenValid(r); err != nil {
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http.Error(w, err.Error(), http.StatusForbidden)
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return
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}
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slug := params[0].Value
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if !form.Validate() {
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if !IsHTMxRequest(r) {
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w.WriteHeader(http.StatusUnprocessableEntity)
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}
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mustRenderEditExpenseForm(w, r, slug, form)
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return
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}
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taxes := mustSliceAtoi(form.Tax.Selected)
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if found := conn.MustGetText(r.Context(), "", "select edit_expense($1, $2, $3, $4, $5, $6, $7)", slug, form.InvoiceDate, form.Invoicer, form.InvoiceNumber, form.Amount, taxes, form.Tags); found == "" {
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http.NotFound(w, r)
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return
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}
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if len(form.File.Content) > 0 {
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conn.MustQuery(r.Context(), "select attach_to_expense($1, $2, $3, $4)", slug, form.File.OriginalFileName, form.File.ContentType, form.File.Content)
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}
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htmxRedirect(w, r, companyURI(company, "/expenses"))
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}
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type expenseFilterForm struct {
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locale *Locale
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company *Company
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Contact *SelectField
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InvoiceNumber *InputField
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FromDate *InputField
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ToDate *InputField
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Tags *TagsField
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TagsCondition *ToggleField
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}
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func newExpenseFilterForm(ctx context.Context, conn *Conn, locale *Locale, company *Company) *expenseFilterForm {
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return &expenseFilterForm{
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locale: locale,
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company: company,
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Contact: &SelectField{
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Name: "contact",
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Label: pgettext("input", "Contact", locale),
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EmptyLabel: gettext("All contacts", locale),
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Options: mustGetContactOptions(ctx, conn, company),
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},
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InvoiceNumber: &InputField{
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Name: "number",
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Label: pgettext("input", "Invoice Number", locale),
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Type: "search",
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},
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FromDate: &InputField{
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Name: "from_date",
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Label: pgettext("input", "From Date", locale),
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Type: "date",
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},
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ToDate: &InputField{
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Name: "to_date",
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Label: pgettext("input", "To Date", locale),
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Type: "date",
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},
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Tags: &TagsField{
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Name: "tags",
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Label: pgettext("input", "Tags", locale),
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},
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TagsCondition: &ToggleField{
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Name: "tags_condition",
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Label: pgettext("input", "Tags Condition", locale),
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Selected: "and",
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FirstOption: &ToggleOption{
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Value: "and",
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Label: pgettext("tag condition", "All", locale),
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Description: gettext("Invoices must have all the specified labels.", locale),
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},
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SecondOption: &ToggleOption{
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Value: "or",
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Label: pgettext("tag condition", "Any", locale),
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Description: gettext("Invoices must have at least one of the specified labels.", locale),
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},
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},
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}
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}
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func (form *expenseFilterForm) Parse(r *http.Request) error {
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if err := r.ParseForm(); err != nil {
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return err
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}
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form.Contact.FillValue(r)
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form.InvoiceNumber.FillValue(r)
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form.FromDate.FillValue(r)
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form.ToDate.FillValue(r)
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form.Tags.FillValue(r)
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form.TagsCondition.FillValue(r)
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return nil
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}
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func (form *expenseFilterForm) BuildQuery(args []interface{}) (string, []interface{}) {
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var where []string
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appendWhere := func(expression string, value interface{}) {
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args = append(args, value)
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where = append(where, fmt.Sprintf(expression, len(args)))
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}
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maybeAppendWhere := func(expression string, value string, conv func(string) interface{}) {
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if value != "" {
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if conv == nil {
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appendWhere(expression, value)
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} else {
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appendWhere(expression, conv(value))
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}
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}
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}
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appendWhere("expense.company_id = $%d", form.company.Id)
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maybeAppendWhere("contact_id = $%d", form.Contact.String(), func(v string) interface{} {
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customerId, _ := strconv.Atoi(form.Contact.Selected[0])
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return customerId
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})
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maybeAppendWhere("invoice_number = $%d", form.InvoiceNumber.String(), nil)
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maybeAppendWhere("invoice_date >= $%d", form.FromDate.String(), nil)
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maybeAppendWhere("invoice_date <= $%d", form.ToDate.String(), nil)
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if len(form.Tags.Tags) > 0 {
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if form.TagsCondition.Selected == "and" {
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appendWhere("expense.tags @> $%d", form.Tags)
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} else {
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appendWhere("expense.tags && $%d", form.Tags)
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}
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}
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return strings.Join(where, ") AND ("), args
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}
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func ServeEditExpenseTags(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
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conn := getConn(r)
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locale := getLocale(r)
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company := getCompany(r)
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slug := params[0].Value
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form := newTagsForm(companyURI(company, "/expenses/"+slug+"/tags"), slug, locale)
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if notFoundErrorOrPanic(conn.QueryRow(r.Context(), `select tags from expense where slug = $1`, form.Slug).Scan(form.Tags)) {
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http.NotFound(w, r)
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return
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}
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mustRenderStandaloneTemplate(w, r, "tags/edit.gohtml", form)
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}
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func HandleUpdateExpenseTags(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
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locale := getLocale(r)
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conn := getConn(r)
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company := getCompany(r)
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slug := params[0].Value
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form := newTagsForm(companyURI(company, "/expenses/"+slug+"/tags/edit"), slug, locale)
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if err := form.Parse(r); err != nil {
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
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if err := verifyCsrfTokenValid(r); err != nil {
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http.Error(w, err.Error(), http.StatusForbidden)
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return
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}
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if conn.MustGetText(r.Context(), "", "update expense set tags = $1 where slug = $2 returning slug", form.Tags, form.Slug) == "" {
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http.NotFound(w, r)
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}
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mustRenderStandaloneTemplate(w, r, "tags/view.gohtml", form)
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}
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func ServeExpenseAttachment(w http.ResponseWriter, r *http.Request, params httprouter.Params) {
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slug := params[0].Value
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conn := getConn(r)
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var contentType string
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var content []byte
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if notFoundErrorOrPanic(conn.QueryRow(r.Context(), `
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select mime_type
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, content
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from expense
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join expense_attachment using (expense_id)
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where slug = $1
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`, slug).Scan(&contentType, &content)) {
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http.NotFound(w, r)
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return
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}
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w.Header().Set("Content-Type", contentType)
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w.Header().Set("Content-Length", strconv.FormatInt(int64(len(content)), 10))
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w.WriteHeader(http.StatusOK)
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w.Write(content)
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}
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