Redirect from POST handlers

front/server.go

@@ -8,7 +8,6 @@ import (
 	"net/http"
 	"net/url"
 	"strconv"
-	"time"
 
 	"github.com/rickb777/date"
 	hm "gitlab.codemonkeysoftware.net/b/hatmill"
@@ -18,12 +17,14 @@ import (
 )
 
 const (
-	pathRoot     = "/"
-	pathCreate   = "/create"
-	pathDoCreate = "/create/do"
-	pathAdmin    = "/admin"
-	pathVote     = "/vote"
-	pathDoVote   = "/vote/do"
+	pathRoot          = "/"
+	pathCreate        = "/create"
+	pathDoCreate      = "/create/do"
+	pathCreateSuccess = "/create/success"
+	pathAdmin         = "/admin"
+	pathVote          = "/vote"
+	pathDoVote        = "/vote/do"
+	pathVoteSuccess   = "/vote/success"
 )
 
 type handler struct {
@@ -52,6 +53,8 @@ func NewHandler(params HandlerParams) http.Handler {
 	h.mux.HandleFunc(pathAdmin, h.handleAdmin)
 	h.mux.HandleFunc(pathVote, h.handleVote)
 	h.mux.HandleFunc(pathDoVote, h.handleDoVote)
+	h.mux.HandleFunc(pathVoteSuccess, h.handleVoteSuccess)
+	h.mux.HandleFunc(pathCreateSuccess, h.handleCreateSuccess)
 	return h
 }
 
@@ -175,7 +178,7 @@ func (h *handler) handleDoVote(w http.ResponseWriter, r *http.Request) {
 		}
 		cmd.DateHours[d][hour] = struct{}{}
 	}
-	_, err = h.store.CreateEventResponse(r.Context(), cmd)
+	eventResponse, err := h.store.CreateEventResponse(r.Context(), cmd)
 	if err != nil {
 		log.Println(err)
 		// TODO handle not found
@@ -183,16 +186,41 @@ func (h *handler) handleDoVote(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// TODO Consider redirecting to vote edit page once that exists.
+	var successQuery = make(url.Values)
+	successQuery.Add(fieldNameEventID, cmd.EventAlphaID)
+	successQuery.Add(fieldNameResponseID, eventResponse.ResponseAlphaID)
+	http.Redirect(w, r, pathVoteSuccess+"?"+successQuery.Encode(), http.StatusSeeOther)
+}
+
+func (h *handler) handleVoteSuccess(w http.ResponseWriter, r *http.Request) {
+	eventResponse, err := h.store.GetEventResponse(r.Context(), back.GetEventResponseQuery{
+		EventAlphaID:    r.URL.Query().Get(fieldNameEventID),
+		ResponseAlphaID: r.URL.Query().Get(fieldNameResponseID),
+	})
+	if err != nil {
+		log.Println(err)
+		// TODO handle not found
+		http.Error(w, "internal server error", http.StatusInternalServerError)
+		return
+	}
+
+	event, err := h.store.GetEventMetadata(r.Context(), back.GetEventMetadataQuery{
+		AlphaID: r.URL.Query().Get(fieldNameEventID),
+	})
+	if err != nil {
+		log.Println(err)
+		// TODO handle not found
+		http.Error(w, "internal server error", http.StatusInternalServerError)
+		return
+	}
 
-	// TODO Use actual data.
 	state := voteState{
-		name:     r.Form.Get(fieldNameGuestName),
-		earliest: date.New(2006, time.May, 3),
-		latest:   date.New(2006, time.May, 8),
+		name:     eventResponse.GuestName,
+		earliest: event.Earliest,
+		latest:   event.Latest,
 	}
 	body := hm.Terms{
-		e.P()(hm.Text("At Billy's house. Bring presents. Eat cake.")),
+		e.P()(hm.Text(event.Description)),
 		e.H3()(hm.Text("Thanks for voting!")),
 		e.P()(
 			hm.Text("You can edit your response anytime at "),
@@ -201,7 +229,7 @@ func (h *handler) handleDoVote(w http.ResponseWriter, r *http.Request) {
 		),
 		voteForm(true, state),
 	}
-	_ = h.writePage(w, "Billy's birthday party", body)
+	_ = h.writePage(w, event.Name, body)
 }
 
 func (h *handler) handleCreate(w http.ResponseWriter, r *http.Request) {
@@ -254,13 +282,32 @@ func (h *handler) handleDoCreate(w http.ResponseWriter, r *http.Request) {
 		fmt.Fprint(w, err)
 		return
 	}
+
+	var successQuery = make(url.Values)
+	successQuery.Add(fieldNameEventID, event.AlphaID)
+	successQuery.Add(fieldNameAdminCode, event.AdminCode)
+	http.Redirect(w, r, pathCreateSuccess+"?"+successQuery.Encode(), http.StatusSeeOther)
+}
+
+func (h *handler) handleCreateSuccess(w http.ResponseWriter, r *http.Request) {
+	eventID := r.URL.Query().Get(fieldNameEventID)
+	event, err := h.store.GetEventMetadata(r.Context(), back.GetEventMetadataQuery{
+		AlphaID: eventID,
+	})
+	if err != nil {
+		log.Println(err)
+		// TODO handle not found
+		http.Error(w, "internal server error", http.StatusInternalServerError)
+		return
+	}
+
 	var adminQuery = make(url.Values)
-	adminQuery.Add(fieldNameEventID, event.AlphaID)
-	adminQuery.Add(fieldNameAdminCode, event.AdminCode)
+	adminQuery.Add(fieldNameEventID, eventID)
+	adminQuery.Add(fieldNameAdminCode, r.URL.Query().Get(fieldNameAdminCode))
 	adminURL := h.baseURL + pathAdmin + "?" + adminQuery.Encode()
 
 	var voteQuery = make(url.Values)
-	voteQuery.Add(fieldNameEventID, event.AlphaID)
+	voteQuery.Add(fieldNameEventID, eventID)
 	voteURL := h.baseURL + pathVote + "?" + voteQuery.Encode()
 
 	const dateDisplayFmt = "Monday, January 2, 2006"
@@ -278,16 +325,16 @@ func (h *handler) handleDoCreate(w http.ResponseWriter, r *http.Request) {
 		),
 
 		e.H3()(hm.Text("Name")),
-		hm.Text(eventName),
+		hm.Text(event.Name),
 
 		e.H3()(hm.Text("Description")),
-		hm.Text(description),
+		hm.Text(event.Description),
 
 		e.H3()(hm.Text("Earliest date")),
-		hm.Text(earliest.Format(dateDisplayFmt)),
+		hm.Text(event.Earliest.Format(dateDisplayFmt)),
 
 		e.H3()(hm.Text("Latest date")),
-		hm.Text(latest.Format(dateDisplayFmt)),
+		hm.Text(event.Latest.Format(dateDisplayFmt)),
 	}
 	_ = h.writePage(w, "Created event", body)
 }
@@ -327,6 +374,8 @@ func (h *handler) handleAdmin(w http.ResponseWriter, r *http.Request) {
 			e.Textarea(a.Name(fieldNameDescription))(hm.Text(metadata.Description)),
 			e.Br(),
 
+			// TODO Should the date fields be disabled, or should we cull invalid
+			// response times after changing event dates?
 			e.Label(a.For(fieldNameEarliest))(hm.Text("Earliest date")),
 			e.Input(
 				a.Name(fieldNameEarliest),
@@ -383,6 +432,7 @@ const (
 	fieldNameGuestName   = "guest_name"
 	fieldNameEventID     = "event_id"
 	fieldNameAdminCode   = "admin_code"
+	fieldNameResponseID  = "response_id"
 )
 
 const formDateLayout = "2006-01-02"