camper/pkg/carousel/admin.go

297 lines
7.9 KiB
Go

/*
* SPDX-FileCopyrightText: 2023 jordi fita mas <jfita@peritasoft.com>
* SPDX-License-Identifier: AGPL-3.0-only
*/
package carousel
import (
"context"
"fmt"
"net/http"
"strconv"
"github.com/jackc/pgx/v4"
"dev.tandem.ws/tandem/camper/pkg/auth"
"dev.tandem.ws/tandem/camper/pkg/database"
"dev.tandem.ws/tandem/camper/pkg/form"
httplib "dev.tandem.ws/tandem/camper/pkg/http"
"dev.tandem.ws/tandem/camper/pkg/locale"
"dev.tandem.ws/tandem/camper/pkg/template"
)
type AdminHandler struct {
name string
locales locale.Locales
}
func NewAdminHandler(name string, locales locale.Locales) *AdminHandler {
return &AdminHandler{
name: name,
locales: locales,
}
}
func (h *AdminHandler) Handler(user *auth.User, company *auth.Company, conn *database.Conn) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var head string
head, r.URL.Path = httplib.ShiftPath(r.URL.Path)
switch head {
case "":
switch r.Method {
case http.MethodPost:
addSlide(w, r, user, company, conn, h.name)
default:
httplib.MethodNotAllowed(w, r, http.MethodPost)
}
case "new":
switch r.Method {
case http.MethodGet:
f := newSlideForm(h.name)
f.MustRender(w, r, user, company)
default:
httplib.MethodNotAllowed(w, r, http.MethodGet)
}
default:
id, err := strconv.Atoi(head)
if err != nil {
http.NotFound(w, r)
}
f := newSlideForm(h.name)
if err := f.FillFromDatabase(r.Context(), conn, id); err != nil {
if database.ErrorIsNotFound(err) {
http.NotFound(w, r)
return
}
panic(err)
}
var langTag string
langTag, r.URL.Path = httplib.ShiftPath(r.URL.Path)
switch langTag {
case "":
switch r.Method {
case http.MethodGet:
f.MustRender(w, r, user, company)
case http.MethodPut:
editSlide(w, r, user, company, conn, f)
case http.MethodDelete:
h.deleteSlide(w, r, user, conn, id)
default:
httplib.MethodNotAllowed(w, r, http.MethodGet, http.MethodPut, http.MethodDelete)
}
default:
loc, ok := h.locales.Get(langTag)
if !ok {
http.NotFound(w, r)
return
}
l10n := newSlideL10nForm(f, loc)
if err := l10n.FillFromDatabase(r.Context(), conn); err != nil {
panic(err)
}
switch r.Method {
case http.MethodGet:
l10n.MustRender(w, r, user, company)
case http.MethodPut:
editSlideL10n(w, r, user, company, conn, l10n)
default:
httplib.MethodNotAllowed(w, r, http.MethodGet, http.MethodPut)
}
}
}
})
}
type Slide struct {
Media string
Caption string
}
func MustCollectSlides(ctx context.Context, company *auth.Company, conn *database.Conn, loc *locale.Locale, carouselName string) []*Slide {
rows, err := conn.Query(ctx, fmt.Sprintf(`
select coalesce(i18n.caption, slide.caption) as l10_caption
, media.path
from %[1]s_carousel as slide
join media using (media_id)
left join %[1]s_carousel_i18n as i18n on i18n.media_id = slide.media_id and lang_tag = $1
where media.company_id = $2
`, carouselName), loc.Language, company.ID)
if err != nil {
panic(err)
}
defer rows.Close()
var carousel []*Slide
for rows.Next() {
slide := &Slide{}
err = rows.Scan(&slide.Caption, &slide.Media)
if err != nil {
panic(err)
}
carousel = append(carousel, slide)
}
if rows.Err() != nil {
panic(rows.Err())
}
return carousel
}
type SlideEntry struct {
Slide
ID int
Translations []*Translation
}
type Translation struct {
Language string
Endonym string
Missing bool
}
func CollectSlideEntries(ctx context.Context, company *auth.Company, conn *database.Conn, carouselName string) ([]*SlideEntry, error) {
rows, err := conn.Query(ctx, fmt.Sprintf(`
select media_id
, media.path
, caption
, array_agg((lang_tag, endonym, not exists (select 1 from %[1]s_carousel_i18n as i18n where i18n.media_id = carousel.media_id and i18n.lang_tag = language.lang_tag)) order by endonym)
from %[1]s_carousel as carousel
join media using (media_id)
join company using (company_id)
, language
where lang_tag <> default_lang_tag
and language.selectable
and media.company_id = $1
group by media_id
, media.path
, caption
order by caption
`, carouselName), pgx.QueryResultFormats{pgx.BinaryFormatCode}, company.ID)
if err != nil {
return nil, err
}
defer rows.Close()
var slides []*SlideEntry
for rows.Next() {
slide := &SlideEntry{}
var translations database.RecordArray
if err = rows.Scan(&slide.ID, &slide.Media, &slide.Caption, &translations); err != nil {
return nil, err
}
for _, el := range translations.Elements {
slide.Translations = append(slide.Translations, &Translation{
el.Fields[0].Get().(string),
el.Fields[1].Get().(string),
el.Fields[2].Get().(bool),
})
}
slides = append(slides, slide)
}
return slides, nil
}
func addSlide(w http.ResponseWriter, r *http.Request, user *auth.User, company *auth.Company, conn *database.Conn, carouselName string) {
f := newSlideForm(carouselName)
editSlide(w, r, user, company, conn, f)
}
func editSlide(w http.ResponseWriter, r *http.Request, user *auth.User, company *auth.Company, conn *database.Conn, f *slideForm) {
f.process(w, r, user, company, conn, func(ctx context.Context) {
conn.MustExec(ctx, fmt.Sprintf("select add_%s_carousel_slide($1, $2)", f.CarouselName), f.Media, f.Caption)
})
}
func (h *AdminHandler) deleteSlide(w http.ResponseWriter, r *http.Request, user *auth.User, conn *database.Conn, id int) {
if err := user.VerifyCSRFToken(r); err != nil {
http.Error(w, err.Error(), http.StatusForbidden)
return
}
conn.MustExec(r.Context(), fmt.Sprintf("select remove_%s_carousel_slide($1)", h.name), id)
httplib.Redirect(w, r, "/admin/"+h.name, http.StatusSeeOther)
}
type slideForm struct {
CarouselName string
ID int
Media *form.Media
Caption *form.Input
}
func newSlideForm(carouselName string) *slideForm {
return &slideForm{
CarouselName: carouselName,
Media: &form.Media{
Input: &form.Input{
Name: "media",
},
Label: locale.PgettextNoop("Slide image", "input"),
Prompt: locale.PgettextNoop("Set slide image", "action"),
},
Caption: &form.Input{
Name: "caption",
},
}
}
func (f *slideForm) FillFromDatabase(ctx context.Context, conn *database.Conn, id int) error {
f.ID = id
row := conn.QueryRow(ctx, fmt.Sprintf(`
select caption
, media_id::text
from %s_carousel
where media_id = $1
`, f.CarouselName), id)
return row.Scan(&f.Caption.Val, &f.Media.Val)
}
func (f *slideForm) process(w http.ResponseWriter, r *http.Request, user *auth.User, company *auth.Company, conn *database.Conn, act func(ctx context.Context)) {
if err := f.Parse(r); err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
if err := user.VerifyCSRFToken(r); err != nil {
http.Error(w, err.Error(), http.StatusForbidden)
return
}
if ok, err := f.Valid(r.Context(), conn, user.Locale); err != nil {
panic(err)
} else if !ok {
if !httplib.IsHTMxRequest(r) {
w.WriteHeader(http.StatusUnprocessableEntity)
}
f.MustRender(w, r, user, company)
return
}
act(r.Context())
httplib.Redirect(w, r, "/admin/"+f.CarouselName, http.StatusSeeOther)
}
func (f *slideForm) Parse(r *http.Request) error {
if err := r.ParseForm(); err != nil {
return err
}
f.Caption.FillValue(r)
f.Media.FillValue(r)
return nil
}
func (f *slideForm) Valid(ctx context.Context, conn *database.Conn, l *locale.Locale) (bool, error) {
v := form.NewValidator(l)
if v.CheckRequired(f.Media.Input, l.GettextNoop("Slide image can not be empty.")) {
if _, err := v.CheckImageMedia(ctx, conn, f.Media.Input, l.GettextNoop("Slide image must be an image media type.")); err != nil {
return false, err
}
}
return v.AllOK, nil
}
func (f *slideForm) MustRender(w http.ResponseWriter, r *http.Request, user *auth.User, company *auth.Company) {
template.MustRenderAdmin(w, r, user, company, "carousel/form.gohtml", f)
}