camper/pkg/invoice/filter.go

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package invoice
import (
"context"
"fmt"
"net/http"
"strconv"
"strings"
"dev.tandem.ws/tandem/camper/pkg/auth"
"dev.tandem.ws/tandem/camper/pkg/database"
"dev.tandem.ws/tandem/camper/pkg/form"
"dev.tandem.ws/tandem/camper/pkg/locale"
)
type filterForm struct {
company *auth.Company
Customer *form.Select
InvoiceStatus *form.Select
InvoiceNumber *form.Input
FromDate *form.Input
ToDate *form.Input
Cursor *form.Cursor
}
func newFilterForm(ctx context.Context, conn *database.Conn, company *auth.Company, locale *locale.Locale) *filterForm {
return &filterForm{
company: company,
Customer: &form.Select{
Name: "customer",
Options: mustGetContactOptions(ctx, conn, company),
},
InvoiceStatus: &form.Select{
Name: "invoice_status",
Options: mustGetInvoiceStatusOptions(ctx, conn, locale),
},
InvoiceNumber: &form.Input{
Name: "number",
},
FromDate: &form.Input{
Name: "from_date",
},
ToDate: &form.Input{
Name: "to_date",
},
Cursor: &form.Cursor{
Name: "cursor",
PerPage: 25,
},
}
}
func (f *filterForm) Parse(r *http.Request) error {
if err := r.ParseForm(); err != nil {
return err
}
f.Customer.FillValue(r)
f.InvoiceStatus.FillValue(r)
f.InvoiceNumber.FillValue(r)
f.FromDate.FillValue(r)
f.ToDate.FillValue(r)
f.Cursor.FillValue(r)
return nil
}
func (f *filterForm) 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("invoice.company_id = $%d", f.company.ID)
maybeAppendWhere("contact_id = $%d", f.Customer.String(), func(v string) interface{} {
customerId, _ := strconv.Atoi(f.Customer.Selected[0])
return customerId
})
maybeAppendWhere("invoice.invoice_status = $%d", f.InvoiceStatus.String(), nil)
maybeAppendWhere("invoice_number = $%d", f.InvoiceNumber.Val, nil)
maybeAppendWhere("invoice_date >= $%d", f.FromDate.Val, nil)
maybeAppendWhere("invoice_date <= $%d", f.ToDate.Val, nil)
if f.Paginated() {
params := f.Cursor.Params()
if len(params) == 2 {
where = append(where, fmt.Sprintf("(invoice_date, invoice_number) < ($%d, $%d)", len(args)+1, len(args)+2))
args = append(args, params[0])
args = append(args, params[1])
}
}
return strings.Join(where, ") AND ("), args
}
func (f *filterForm) buildCursor(customers []*IndexEntry) []*IndexEntry {
return form.BuildCursor(f.Cursor, customers, func(entry *IndexEntry) []string {
return []string{entry.Date.Format(database.ISODateFormat), entry.Number}
})
}
func (f *filterForm) HasValue() bool {
return (len(f.Customer.Selected) > 0 && f.Customer.Selected[0] != "") ||
(len(f.InvoiceStatus.Selected) > 0 && f.InvoiceStatus.Selected[0] != "") ||
f.InvoiceNumber.Val != "" ||
f.FromDate.Val != "" ||
f.ToDate.Val != ""
}
func (f *filterForm) PerPage() int {
return f.Cursor.PerPage
}
func (f *filterForm) Paginated() bool {
return f.Cursor.Pagination
}