132 lines
3.5 KiB
Go
132 lines
3.5 KiB
Go
package booking
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import (
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"context"
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"fmt"
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"net/http"
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"strings"
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"dev.tandem.ws/tandem/camper/pkg/auth"
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"dev.tandem.ws/tandem/camper/pkg/database"
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"dev.tandem.ws/tandem/camper/pkg/form"
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"dev.tandem.ws/tandem/camper/pkg/locale"
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)
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type filterForm struct {
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locale *locale.Locale
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company *auth.Company
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perPage int
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pagination bool
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HolderName *form.Input
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BookingStatus *form.Select
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FromDate *form.Input
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ToDate *form.Input
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Cursor *form.Input
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}
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func newFilterForm(ctx context.Context, conn *database.Conn, company *auth.Company, locale *locale.Locale) *filterForm {
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return &filterForm{
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locale: locale,
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company: company,
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perPage: 25,
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HolderName: &form.Input{
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Name: "holder_name",
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},
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BookingStatus: &form.Select{
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Name: "booking_status",
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Options: mustGetBookingStatusOptions(ctx, conn, locale),
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},
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FromDate: &form.Input{
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Name: "from_date",
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},
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ToDate: &form.Input{
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Name: "to_date",
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},
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Cursor: &form.Input{
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Name: "cursor",
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},
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}
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}
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func mustGetBookingStatusOptions(ctx context.Context, conn *database.Conn, locale *locale.Locale) []*form.Option {
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return form.MustGetOptions(ctx, conn, `
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select booking_status.booking_status
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, isi18n.name
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from booking_status
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join booking_status_i18n isi18n using(booking_status)
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where isi18n.lang_tag = $1
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and booking_status <> 'created'
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order by booking_status`, locale.Language)
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}
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func (f *filterForm) 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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f.HolderName.FillValue(r)
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f.BookingStatus.FillValue(r)
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f.FromDate.FillValue(r)
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f.ToDate.FillValue(r)
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f.Cursor.FillValue(r)
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f.pagination = f.Cursor.Val != ""
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return nil
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}
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func (f *filterForm) 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("booking.company_id = $%d", f.company.ID)
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maybeAppendWhere("booking.holder_name ILIKE $%d", f.HolderName.Val, func(v string) interface{} {
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return "%" + v + "%"
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})
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if len(f.BookingStatus.Selected) == 0 {
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where = append(where, "booking.booking_status <> 'created'")
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} else {
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maybeAppendWhere("booking.booking_status = $%d", f.BookingStatus.String(), nil)
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}
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maybeAppendWhere("lower(stay) >= $%d", f.FromDate.Val, nil)
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maybeAppendWhere("lower(stay) <= $%d", f.ToDate.Val, nil)
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if f.Cursor.Val != "" {
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params := strings.Split(f.Cursor.Val, ";")
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if len(params) == 2 {
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where = append(where, fmt.Sprintf("(lower(stay), booking_id) < ($%d, $%d)", len(args)+1, len(args)+2))
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args = append(args, params[0])
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args = append(args, params[1])
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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 (f *filterForm) buildCursor(bookings []*bookingEntry) []*bookingEntry {
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if len(bookings) <= f.perPage {
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f.Cursor.Val = ""
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return bookings
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}
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bookings = bookings[:f.perPage]
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last := bookings[f.perPage-1]
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f.Cursor.Val = fmt.Sprintf("%s;%d", last.ArrivalDate.Format(database.ISODateFormat), last.ID)
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return bookings
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}
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func (f *filterForm) HasValue() bool {
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return f.HolderName.Val != "" ||
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(len(f.BookingStatus.Selected) > 0 && f.BookingStatus.Selected[0] != "") ||
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f.FromDate.Val != "" ||
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f.ToDate.Val != ""
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}
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