334 lines
8.1 KiB
Go
334 lines
8.1 KiB
Go
package front
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
"net/url"
|
|
"time"
|
|
|
|
hm "gitlab.codemonkeysoftware.net/b/hatmill"
|
|
a "gitlab.codemonkeysoftware.net/b/hatmill/attribute"
|
|
e "gitlab.codemonkeysoftware.net/b/hatmill/element"
|
|
"gitlab.codemonkeysoftware.net/b/henwen/back"
|
|
)
|
|
|
|
const (
|
|
pathRoot = "/"
|
|
pathCreate = "/create"
|
|
pathDoCreate = "/create/do"
|
|
pathAdmin = "/admin"
|
|
pathVote = "/vote"
|
|
pathDoVote = "/vote/do"
|
|
)
|
|
|
|
type handler struct {
|
|
mux *http.ServeMux
|
|
store *back.Store
|
|
title string
|
|
baseURL string
|
|
}
|
|
|
|
type HandlerParams struct {
|
|
Title string
|
|
Store *back.Store
|
|
BaseURL string
|
|
}
|
|
|
|
func NewHandler(params HandlerParams) http.Handler {
|
|
h := &handler{
|
|
store: params.Store,
|
|
title: params.Title,
|
|
baseURL: params.BaseURL,
|
|
mux: http.NewServeMux(),
|
|
}
|
|
h.mux.HandleFunc(pathRoot, h.handleRoot)
|
|
h.mux.HandleFunc(pathCreate, h.handleCreate)
|
|
h.mux.HandleFunc(pathDoCreate, h.handleDoCreate)
|
|
h.mux.HandleFunc(pathAdmin, h.handleAdmin)
|
|
h.mux.HandleFunc(pathVote, h.handleVote)
|
|
h.mux.HandleFunc(pathDoVote, h.handleDoVote)
|
|
return h
|
|
}
|
|
|
|
func (h *handler) handleRoot(w http.ResponseWriter, r *http.Request) {
|
|
body := hm.Terms{
|
|
e.H2()(hm.Text("Welcome!")),
|
|
e.A(a.Href(pathCreate))(
|
|
hm.Text("Create event"),
|
|
),
|
|
}
|
|
_ = h.writePage(w, body)
|
|
}
|
|
|
|
var timeLabels = []string{
|
|
"12 AM", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11",
|
|
"12 PM", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11",
|
|
}
|
|
|
|
func disableIf(cond bool, input hm.Term) hm.Term {
|
|
if !cond {
|
|
return input
|
|
}
|
|
switch e := input.(type) {
|
|
case hm.ParentElement:
|
|
e.Attribs = append(e.Attribs, a.Disabled())
|
|
return e
|
|
case hm.VoidElement:
|
|
e.Attribs = append(e.Attribs, a.Disabled())
|
|
return e
|
|
default:
|
|
return e
|
|
}
|
|
}
|
|
|
|
type voteState struct {
|
|
name string
|
|
earliestDate, latestDate time.Time
|
|
}
|
|
|
|
func voteForm(disabled bool, st voteState) hm.Term {
|
|
var dates []time.Time
|
|
for curr := st.earliestDate; curr.Before(st.latestDate.Add(time.Hour)); curr = curr.AddDate(0, 0, 1) {
|
|
dates = append(dates, curr)
|
|
}
|
|
|
|
var ths = hm.Terms{e.Th()()}
|
|
for _, date := range dates {
|
|
ths = append(ths, e.Th()(hm.Text(date.Format("Jan 2"))))
|
|
}
|
|
|
|
var rows = hm.Terms{e.Thead()(ths)}
|
|
for hour := 0; hour < 24; hour++ {
|
|
var row = hm.Terms{
|
|
e.Td()(hm.Text(timeLabels[hour])),
|
|
}
|
|
for day := 0; day < len(dates); day++ {
|
|
row = append(row, e.Td()(disableIf(disabled, e.Input(a.Type("checkbox")))))
|
|
}
|
|
rows = append(rows, e.Tr()(row))
|
|
}
|
|
return e.Form(a.Method(http.MethodPost), a.Action(pathDoVote))(
|
|
e.Label()(hm.Text("What's your name?")),
|
|
e.Br(),
|
|
disableIf(disabled, e.Input(a.Size(40), a.Value(st.name))),
|
|
e.Fieldset()(
|
|
e.Legend()(hm.Text("When are you available?")),
|
|
e.Table()(rows),
|
|
),
|
|
e.Input(a.Type("submit"), a.Value("Submit")),
|
|
)
|
|
}
|
|
|
|
func (h *handler) handleVote(w http.ResponseWriter, r *http.Request) {
|
|
query := r.URL.Query()
|
|
event, err := h.store.GetEvent(context.Background(), back.GetEventQuery{
|
|
AlphaID: query.Get(keyEventID),
|
|
})
|
|
// TODO return 404 if event not found
|
|
if err != nil {
|
|
fmt.Fprint(w, err)
|
|
return
|
|
}
|
|
|
|
state := voteState{
|
|
earliestDate: event.EarliestDate,
|
|
latestDate: event.LatestDate,
|
|
}
|
|
body := hm.Terms{
|
|
e.H2()(hm.Text(event.Name)),
|
|
e.P()(hm.Text(event.Description)),
|
|
voteForm(false, state),
|
|
}
|
|
_ = h.writePage(w, body)
|
|
}
|
|
|
|
func (h *handler) handleDoVote(w http.ResponseWriter, r *http.Request) {
|
|
// TODO use actual data
|
|
state := voteState{
|
|
name: "Suzie Q",
|
|
earliestDate: time.Date(2006, time.May, 3, 0, 0, 0, 0, time.UTC),
|
|
latestDate: time.Date(2006, time.May, 8, 0, 0, 0, 0, time.UTC),
|
|
}
|
|
body := hm.Terms{
|
|
e.H2()(hm.Text("Billy's birthday party")),
|
|
e.P()(hm.Text("At Billy's house. Bring presents. Eat cake.")),
|
|
e.H3()(hm.Text("Thanks for voting!")),
|
|
e.P()(
|
|
hm.Text("You can edit your response anytime at "),
|
|
e.A(a.Href("#"))(hm.Text("this link")),
|
|
hm.Text("."),
|
|
),
|
|
voteForm(true, state),
|
|
}
|
|
_ = h.writePage(w, body)
|
|
}
|
|
|
|
func (h *handler) handleCreate(w http.ResponseWriter, r *http.Request) {
|
|
body := hm.Terms{
|
|
e.H2()(hm.Text("Create an event")),
|
|
e.Form(a.Action(pathDoCreate), a.Method(http.MethodPost))(
|
|
e.Label(a.For(fieldNameEventName))(hm.Text("Event name")),
|
|
e.Input(a.Name(fieldNameEventName)),
|
|
|
|
e.Label(a.For(fieldNameDescription))(hm.Text("Description")),
|
|
e.Textarea(a.Name(fieldNameDescription), a.Placeholder("What's going on?"))(),
|
|
|
|
e.Label(a.For(fieldNameEarliest))(hm.Text("Earliest date")),
|
|
e.Input(a.Name(fieldNameEarliest), a.Type("date")),
|
|
|
|
e.Label(a.For(fieldNameLatest))(hm.Text("Latest date")),
|
|
e.Input(a.Name(fieldNameLatest), a.Type("date")),
|
|
|
|
e.Input(a.Type("submit")),
|
|
),
|
|
}
|
|
_ = h.writePage(w, body)
|
|
}
|
|
|
|
func (h *handler) handleDoCreate(w http.ResponseWriter, r *http.Request) {
|
|
earliest, err := time.Parse(formDateLayout, r.FormValue(fieldNameEarliest))
|
|
if err != nil {
|
|
fmt.Fprint(w, "bad earliest date")
|
|
return
|
|
}
|
|
latest, err := time.Parse(formDateLayout, r.FormValue(fieldNameLatest))
|
|
if err != nil {
|
|
fmt.Fprint(w, "bad latest date")
|
|
return
|
|
}
|
|
eventName := r.FormValue(fieldNameEventName)
|
|
if eventName == "" {
|
|
fmt.Fprint(w, "event name is required")
|
|
return
|
|
}
|
|
description := r.FormValue(fieldNameDescription)
|
|
|
|
event, err := h.store.CreateEvent(context.Background(), back.CreateEventCommand{
|
|
Name: eventName,
|
|
Description: description,
|
|
EarliestDate: earliest,
|
|
LatestDate: latest,
|
|
})
|
|
if err != nil {
|
|
fmt.Fprint(w, err)
|
|
return
|
|
}
|
|
var adminQuery = make(url.Values)
|
|
adminQuery.Add(keyEventID, event.AlphaID)
|
|
adminQuery.Add(keyAdminCode, event.AdminCode)
|
|
adminURL := h.baseURL + pathAdmin + "?" + adminQuery.Encode()
|
|
|
|
var voteQuery = make(url.Values)
|
|
voteQuery.Add(keyEventID, event.AlphaID)
|
|
voteURL := h.baseURL + pathVote + "?" + voteQuery.Encode()
|
|
|
|
const dateDisplayFmt = "Monday, January 2, 2006"
|
|
|
|
body := hm.Terms{
|
|
e.H2()(hm.Text("Created event!")),
|
|
e.P()(
|
|
hm.Text("You can find it again at "),
|
|
e.A(a.Href(adminURL))(hm.Text(adminURL)),
|
|
hm.Text("."),
|
|
),
|
|
e.P()(
|
|
hm.Text("Your guests can vote on times at "),
|
|
e.A(a.Href(voteURL))(hm.Text(voteURL)),
|
|
hm.Text("."),
|
|
),
|
|
|
|
e.H3()(hm.Text("Name")),
|
|
hm.Text(eventName),
|
|
|
|
e.H3()(hm.Text("Description")),
|
|
hm.Text(description),
|
|
|
|
e.H3()(hm.Text("Earliest date")),
|
|
hm.Text(earliest.Format(dateDisplayFmt)),
|
|
|
|
e.H3()(hm.Text("Latest date")),
|
|
hm.Text(latest.Format(dateDisplayFmt)),
|
|
}
|
|
_ = h.writePage(w, body)
|
|
}
|
|
|
|
func (h *handler) handleAdmin(w http.ResponseWriter, r *http.Request) {
|
|
query := r.URL.Query()
|
|
// TODO authenticate with admin code
|
|
event, err := h.store.GetEvent(context.Background(), back.GetEventQuery{
|
|
AlphaID: query.Get(keyEventID),
|
|
})
|
|
// TODO return 404 if event not found
|
|
if err != nil {
|
|
fmt.Fprint(w, err)
|
|
return
|
|
}
|
|
|
|
body := hm.Terms{
|
|
e.H2()(hm.Text("Edit your event")),
|
|
e.Form()(
|
|
e.Label(a.For(fieldNameEventName))(hm.Text("Event name")),
|
|
e.Input(
|
|
a.Name(fieldNameEventName),
|
|
a.Value(event.Name),
|
|
),
|
|
e.Br(),
|
|
|
|
e.Label(a.For(fieldNameDescription))(hm.Text("Description")),
|
|
e.Textarea(a.Name(fieldNameDescription))(hm.Text(event.Description)),
|
|
e.Br(),
|
|
|
|
e.Label(a.For(fieldNameEarliest))(hm.Text("Earliest date")),
|
|
e.Input(
|
|
a.Name(fieldNameEarliest),
|
|
a.Type("date"),
|
|
a.Value(event.EarliestDate.Format(formDateLayout)),
|
|
),
|
|
e.Br(),
|
|
|
|
e.Label(a.For(fieldNameLatest))(hm.Text("Latest date")),
|
|
e.Input(
|
|
a.Name(fieldNameLatest),
|
|
a.Type("date"),
|
|
a.Value(event.LatestDate.Format(formDateLayout)),
|
|
),
|
|
e.Br(),
|
|
|
|
e.Input(a.Type("submit")),
|
|
),
|
|
}
|
|
_ = h.writePage(w, body)
|
|
}
|
|
|
|
func (h *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
|
h.mux.ServeHTTP(w, r)
|
|
}
|
|
|
|
func (h *handler) writePage(w io.Writer, contents hm.Term) error {
|
|
page := e.Html()(
|
|
e.Head()(
|
|
e.Title()(hm.Text(h.title)),
|
|
),
|
|
e.Body()(
|
|
e.H1()(e.A(a.Href(h.baseURL+pathRoot))(hm.Text(h.title))),
|
|
e.Div()(contents),
|
|
),
|
|
)
|
|
_, err := hm.WriteDocument(w, page)
|
|
return err
|
|
}
|
|
|
|
const (
|
|
fieldNameEarliest = "earliestDate"
|
|
fieldNameLatest = "latestDate"
|
|
fieldNameEventName = "eventName"
|
|
fieldNameDescription = "eventDescription"
|
|
)
|
|
|
|
const keyEventID = "event_id"
|
|
const keyAdminCode = "admin_code"
|
|
|
|
const formDateLayout = "2006-01-02"
|