.

.fdignore

@@ -0,0 +1 @@
+.gitignore

Makefile

@@ -7,4 +7,4 @@ run:
 	go run backend/bin/shelves.go
 
 watch:
-	fd . . | entr -cr make run
+	fd | entr -cr make run

backend/bin/shelves.go

@@ -9,7 +9,7 @@ import (
 	_ "github.com/mattn/go-sqlite3"
 
 	"shelves/backend/db"
-	shelvesHttp "shelves/backend/http"
+	"shelves/backend/httpx"
 	"shelves/backend/routes"
 )
 
@@ -30,5 +30,5 @@ func main() {
 
 	routes := routes.Routes()
 	fmt.Println("Listening on localhost:8999")
-	http.ListenAndServe("localhost:8999", shelvesHttp.Log(shelvesHttp.WithCtx(db, routes)))
+	http.ListenAndServe("localhost:8999", httpx.Log(httpx.WithCtx(db, routes)))
 }

backend/errorsx/errorsx.go

@@ -0,0 +1,10 @@
+package errorsx
+
+func String(err error) string {
+	out := ""
+	if err != nil {
+		out = err.Error()
+	}
+
+	return out
+}

backend/forms/forms.go

@@ -0,0 +1,40 @@
+package forms
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"net/url"
+)
+
+type Validator struct {
+	Failed bool
+}
+
+func (v *Validator) MinLength(s string, min int) error {
+	var err error = nil
+	if len(s) < min {
+		v.Failed = true
+		err = fmt.Errorf("Minimum length: %v", min)
+	}
+
+	return err
+}
+
+func (v *Validator) Fail(s string) error {
+	v.Failed = true
+
+	return errors.New(s)
+}
+
+func ParseFormData(r *http.Request, parse func(url.Values, *Validator)) bool {
+	v := Validator{}
+	err := r.ParseForm()
+	if err != nil {
+		return true
+	}
+
+	parse(r.Form, &v)
+
+	return v.Failed
+}

backend/httpx/httpx.go

@@ -0,0 +1,10 @@
+package httpx
+
+import (
+	"net/http"
+)
+
+func SeeOther(w http.ResponseWriter, location string) {
+	w.Header().Add("Location", location)
+	w.WriteHeader(http.StatusSeeOther)
+}

backend/httpx/middleware.go

@@ -1,4 +1,4 @@
-package http
+package httpx
 
 import (
 	"context"
@@ -6,8 +6,6 @@ import (
 	"log"
 	"net/http"
 	"time"
-
-	"shelves/backend/routes"
 )
 
 type LogWrapper struct {
@@ -68,8 +66,15 @@ func queryNeedsOwnerSetup(db *sql.DB) (bool, error) {
 }
 
 type Ctx struct {
-	DB   *sql.DB
-	Auth AuthInfo
+	DB              *sql.DB
+	Auth            AuthInfo
+	NeedsOwnerSetup bool
+}
+
+func GetCtx(r *http.Request) Ctx {
+	ctx := r.Context()
+
+	return ctx.Value("__ctx").(Ctx)
 }
 
 func WithCtx(db *sql.DB, next http.Handler) http.Handler {
@@ -79,25 +84,15 @@ func WithCtx(db *sql.DB, next http.Handler) http.Handler {
 			log.Printf("Error while querying owner_settings: %v\n", err)
 		}
 
-		if needsOwnerSetup {
-			if r.URL.Path != "/setup" {
-				w.Header().Add("Location", "/setup")
-				w.WriteHeader(http.StatusSeeOther)
-				return
-			} else {
-				routes.SetupGet(w, r)
-				return
-			}
-		}
-
 		ctx := r.Context()
 		auth, err := checkAuthed(db, r)
 		if err != nil {
 			log.Printf("Error while querying auth info: %v\n", err)
 		}
 		ctx = context.WithValue(ctx, "__ctx", Ctx{
-			DB:   db,
-			Auth: auth,
+			DB:              db,
+			Auth:            auth,
+			NeedsOwnerSetup: needsOwnerSetup,
 		})
 		r = r.WithContext(ctx)
 

backend/routes/routes.go

@@ -1,9 +1,10 @@
 package routes
 
 import (
-	"embed"
 	"html/template"
 	"net/http"
+	"shelves/backend/httpx"
+	"strings"
 
 	"shelves"
 )
@@ -13,10 +14,26 @@ func html(w http.ResponseWriter, s template.HTML) {
 	w.Write([]byte(s))
 }
 
-func Routes() *http.ServeMux {
-	mux := http.NewServeMux()
-	mux.HandleFunc("GET /", HomeGet)
-	mux.Handle("GET /static", http.FileServerFS(shelves.Frontend))
+func redirectSetup(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		ctx := httpx.GetCtx(r)
+		if ctx.NeedsOwnerSetup && !strings.HasPrefix(r.URL.Path, "/static") {
+			if r.URL.Path != "/setup" {
+				httpx.SeeOther(w, "/setup")
+				return
+			}
+		}
 
-	return mux
+		next.ServeHTTP(w, r)
+	})
+}
+
+func Routes() http.Handler {
+	mux := http.NewServeMux()
+	mux.Handle("GET /static/", http.StripPrefix("/static/", http.FileServerFS(shelves.Frontend)))
+	mux.HandleFunc("GET /", HomeGet)
+	mux.HandleFunc("GET /setup", SetupGet)
+	mux.HandleFunc("POST /setup", SetupPost)
+
+	return redirectSetup(mux)
 }

backend/routes/setup.go

@@ -1,24 +1,84 @@
 package routes
 
 import (
+	"html/template"
 	"net/http"
+	"net/url"
+	"shelves/backend/errorsx"
+	"shelves/backend/forms"
+	"shelves/backend/httpx"
 	"shelves/backend/templates"
 )
 
-func SetupGet(w http.ResponseWriter, r *http.Request) {
-	html(w, templates.PageBase{Title: "Set up", Body: templates.Form{
+func renderView(f setupForm, e setupFormErrors) template.HTML {
+
+	body := templates.Form{
 		Action: "/setup",
 		Fields: []templates.Field{
 			templates.Field{
 				Label: "Password",
 				Type:  "password",
 				Name:  "password",
+				Error: errorsx.String(e.password),
 			},
 			templates.Field{
 				Label: "Confirm password",
 				Type:  "password",
-				Name:  "password-confirmation",
+				Name:  "passwordConfirmation",
 			},
 		},
-	}.HTML()}.HTML())
+	}
+
+	return templates.PageBase{Title: "Set up", Body: body.HTML()}.HTML()
+}
+
+func SetupGet(w http.ResponseWriter, r *http.Request) {
+	ctx := httpx.GetCtx(r)
+	if !ctx.NeedsOwnerSetup {
+		httpx.SeeOther(w, "/")
+		return
+	}
+
+	html(w, renderView(setupForm{}, setupFormErrors{}))
+}
+
+type setupForm struct {
+	password string
+}
+
+type setupFormErrors struct {
+	password error
+}
+
+func parseForm(f *setupForm, e *setupFormErrors, vs url.Values, v *forms.Validator) {
+	f.password = vs.Get("password")
+	passwordConfirmation := vs.Get("passwordConfirmation")
+
+	if f.password != passwordConfirmation {
+		e.password = v.Fail("Passwords did not match")
+		return
+	}
+
+	e.password = v.MinLength(f.password, 1)
+}
+
+func SetupPost(w http.ResponseWriter, r *http.Request) {
+	ctx := httpx.GetCtx(r)
+	if !ctx.NeedsOwnerSetup {
+		httpx.SeeOther(w, "/")
+		return
+	}
+
+	form := setupForm{}
+	errs := setupFormErrors{}
+	failed := forms.ParseFormData(r, func(vs url.Values, v *forms.Validator) {
+		parseForm(&form, &errs, vs, v)
+	})
+
+	if failed {
+		w.WriteHeader(http.StatusBadRequest)
+		html(w, renderView(form, errs))
+	} else {
+		httpx.SeeOther(w, "/setup")
+	}
 }

backend/templates/form.go

@@ -1,6 +1,8 @@
 package templates
 
-import "html/template"
+import (
+	"html/template"
+)
 
 type Field struct {
 	Label       string
@@ -31,8 +33,8 @@ func (f Form) HTML() template.HTML {
 		f.Method = "POST"
 	}
 
-	for _, f := range f.Fields {
-		f.init()
+	for i := range f.Fields {
+		f.Fields[i].init()
 	}
 
 	return tmpls.renderHtml("form.tmpl.html", f)

backend/templates/tmpls/form.tmpl.html

@@ -1,7 +1,8 @@
 
 {{define "attrs"}}
+	name="{{.Name}}"
 	placeholder="{{.Placeholder}}"
-	aria-invalid="{{.Valid}}"
+	aria-invalid="{{not .Valid}}"
 	{{if .Error}}
 	aria-describedby="{{.Name}}-error"
 	{{end}}
@@ -9,22 +10,25 @@
 
 <form action="{{.Action}}" method="{{.Method}}">
 	{{range .Fields}}
-		<label>
-			{{.Label}}
-			{{if eq .Type "textarea"}}
-			<textarea
-				{{template "attrs" .}}
-			>{{.Value}}</textarea>
-			{{else}}
-			<input
-				type="{{.Type}}"
-				value="{{.Value}}"
-				{{template "attrs" .}}
-			>
+		<mu-field>
+			<label>
+				{{.Label}}
+				{{if eq .Type "textarea"}}
+				<textarea
+					{{template "attrs" .}}
+				>{{.Value}}</textarea>
+				{{else}}
+				<input
+					type="{{.Type}}"
+					value="{{.Value}}"
+					{{template "attrs" .}}
+				>
+				{{end}}
+			</label>
+			{{if .Error}}
+			<small id="{{.Name}}-error">{{.Error}}</small>
 			{{end}}
-		</label>
-		{{if .Error}}
-		<small id="{{.Name}}-error">{{.Error}}</small>
-		{{end}}
+		</mu-field>
 	{{end}}
+	<input type="submit" value="Submit">
 </form>

backend/templates/tmpls/page_base.tmpl.html

@@ -2,6 +2,7 @@
 <html>
 <head>
 	<title>{{.Title}} - Shelves</title>
+	<link rel="stylesheet" href="/static/css/mu.css" />
 	{{.Head}}
 </head>
 <body>

flake.lock

@@ -24,7 +24,7 @@
           "flake-utils"
         ],
         "nixpkgs": [
-          "nixpkgs"
+          "nixpkgs-unstable"
         ]
       },
       "locked": {
@@ -54,11 +54,27 @@
         "type": "indirect"
       }
     },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1731685661,
+        "narHash": "sha256-5ktjIlkTfWNbbrit9refiRY5rKR4nw9oTe5ck/YUNsQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "2d088b482efb193d02d1692697f9dd0b6f8b5012",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
         "gomod2nix": "gomod2nix",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable"
       }
     },
     "systems": {

flake.nix

@@ -1,10 +1,10 @@
 {
-
 	inputs.nixpkgs.url = "nixpkgs";
+	inputs.nixpkgs-unstable.url = "github:NixOS/nixpkgs?branch=nixpkgs-unstable";
 	inputs.flake-utils.url = "github:numtide/flake-utils";
 	inputs.gomod2nix = {
 		url = "github:nix-community/gomod2nix";
-		inputs.nixpkgs.follows = "nixpkgs";
+		inputs.nixpkgs.follows = "nixpkgs-unstable";
 		inputs.flake-utils.follows = "flake-utils";
 	};
 
@@ -12,6 +12,7 @@
 		(inputs.flake-utils.lib.eachDefaultSystem (system:
 			let
 				pkgs = inputs.nixpkgs.legacyPackages.${system};
+				pkgsU = inputs.nixpkgs-unstable.legacyPackages.${system};
 				pkgsG = inputs.gomod2nix.legacyPackages.${system};
 			in {
 				devShells.default =
@@ -21,9 +22,12 @@
 							gnumake
 							entr
 							fd
-							goEnv
 							(sqlite.override { interactive = true; })
-							pkgsG.gomod2nix
+							pkgsU.go_1_23
+							pkgsU.gopls
+							# TODO: re-enable this once it works with go 1.23
+							# goEnv
+							# pkgsG.gomod2nix
 						];
 					};
 			}

frontend.go

@@ -1,6 +1,11 @@
 package shelves
 
-import "embed"
+import (
+	"embed"
+	"io/fs"
+)
 
 //go:embed frontend/*
-var Frontend embed.FS
+var fe embed.FS
+
+var Frontend, _ = fs.Sub(fe, "frontend")

frontend/css/mu.css

@@ -0,0 +1,19 @@
+form {
+	width: 100%;
+
+	display: flex;
+	flex-flow: column nowrap;
+	gap: 1rem;
+
+	& input {
+		width: 100%;
+
+		&[aria-invalid="true"] {
+			border-color: red;
+		}
+	}
+
+	& label:has([aria-invalid="true"]) + small {
+		color: red;
+	}
+}

go.mod

@@ -1,6 +1,6 @@
 module shelves
 
-go 1.22
+go 1.23
 
 require (
 	github.com/mattn/go-sqlite3 v1.14.24