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