feat(example): r/mouss

examples/gno.land/r/mouss/config/config.gno

@@ -0,0 +1,48 @@
+package config
+
+import (
+	"errors"
+	"std"
+)
+
+var (
+	main   std.Address // mouss's main address
+	backup std.Address // backup address
+
+	ErrorInvalidAddr  = errors.New("config: invalid address")
+	ErrorUnauthorized = errors.New("config: unauthorized")
+)
+
+func init() {
+	main = "g1hrfvdh7jdvnlxpk2y20tp3scj9jqal3zzu7wjz"
+}
+
+func Address() std.Address {
+	return main
+}
+
+func Backup() std.Address {
+	return backup
+}
+
+func SetBackup(newAddress std.Address) error {
+	if !newAddress.IsValid() {
+		return ErrorInvalidAddr
+	}
+
+	if err := checkAuthorized(); err != nil {
+		return err
+	}
+
+	backup = newAddress
+	return nil
+}
+
+func checkAuthorized() error {
+	caller := std.GetOrigCaller()
+	if caller != main && caller != backup {
+		return ErrorUnauthorized
+	}
+
+	return nil
+}

examples/gno.land/r/mouss/config/config_test.gno

@@ -0,0 +1,63 @@
+package config
+
+import (
+	"std"
+	"testing"
+
+	"gno.land/p/demo/testutils"
+	"gno.land/p/demo/uassert"
+)
+
+var (
+	mainAddr         = Address()
+	backupAddr       = testutils.TestAddress("backup")
+	unauthorizedAddr = testutils.TestAddress("unauthorized")
+)
+
+func TestAddress(t *testing.T) {
+	addr := Address()
+	expected := std.Address("g1hrfvdh7jdvnlxpk2y20tp3scj9jqal3zzu7wjz")
+	uassert.Equal(t, expected, addr, "Address() should return initialized main address")
+}
+
+func TestSetBackup(t *testing.T) {
+	// Test setting backup as main address
+	std.TestSetOrigCaller(mainAddr)
+	validAddr := testutils.TestAddress("validbackup")
+	err := SetBackup(validAddr)
+	uassert.NoError(t, err, "main address should be able to set backup")
+
+	// Test setting invalid address format
+	err = SetBackup(std.Address("invalid"))
+	uassert.ErrorIs(t, err, ErrorInvalidAddr, "should reject invalid address format")
+
+	// Test setting empty address
+	err = SetBackup(std.Address(""))
+	uassert.ErrorIs(t, err, ErrorInvalidAddr, "should reject empty address")
+
+	// Test unauthorized caller
+	std.TestSetOrigCaller(unauthorizedAddr)
+	err = SetBackup(validAddr)
+	uassert.ErrorIs(t, err, ErrorUnauthorized, "should reject unauthorized caller")
+}
+
+func TestCheckAuthorized(t *testing.T) {
+	// Test main address authorization
+	std.TestSetOrigCaller(mainAddr)
+	err := checkAuthorized()
+	uassert.NoError(t, err, "main address should be authorized")
+
+	// Test unauthorized address
+	std.TestSetOrigCaller(unauthorizedAddr)
+	err = checkAuthorized()
+	uassert.ErrorIs(t, err, ErrorUnauthorized, "random address should not be authorized")
+
+	// Set and test backup address authorization
+	std.TestSetOrigCaller(mainAddr)
+	err = SetBackup(backupAddr)
+	uassert.NoError(t, err, "setting backup address should succeed")
+
+	std.TestSetOrigCaller(backupAddr)
+	err = checkAuthorized()
+	uassert.NoError(t, err, "backup address should be authorized")
+}

examples/gno.land/r/mouss/config/gno.mod

@@ -0,0 +1 @@
+module gno.land/r/mouss/config

examples/gno.land/r/mouss/home/gno.mod

@@ -0,0 +1 @@
+module gno.land/r/mouss/home

examples/gno.land/r/mouss/home/home.gno

@@ -0,0 +1,222 @@
+package home
+
+import (
+	"std"
+	"strconv"
+	"strings"
+
+	"gno.land/p/demo/mux"
+	"gno.land/p/demo/ufmt"
+
+	"gno.land/p/moul/addrset"
+	"gno.land/p/moul/md"
+	"gno.land/r/leon/hof"
+	"gno.land/r/mouss/config"
+)
+
+// Profile represents my personal profile information.
+type Profile struct {
+	AboutMe   string
+	Avatar    string
+	Email     string
+	Github    string
+	LinkedIn  string
+	Followers *addrset.Set // Set of followers addresses.
+}
+
+// Recipe represents a cooking recipe with its details.
+type Recipe struct {
+	Name         string
+	Origin       string
+	Author       std.Address
+	Ingredients  string
+	Instructions string
+	Tips         string
+}
+
+const (
+	RealmURL = "/r/mouss/home"
+	Rec      = RealmURL + ":recipe/"
+	gnoArt   = `
+        -==++.                                                                  
+	     *@@@@=                                     @-                          -@
+	    #@@@@@:       -==-.-- :-::===:   .-++-.     @-   .===:.- .-.-==-   .===:=@
+       #@@@@@@@:    -@@%**%@@ #@@#*#@@- *@@**@@*    @-  +%=::-*@ +@=-:-@* +%=::-*@
+      +@%#**#%@@    %@+   :@@ *@+   #@=+@%    %@+   @= :@:    -@ +%    +%.@:    -@
+      -:       -    *@%:..+@@ *@+   #@=-@@:  :@@=   @- .@=    =@ +@    *%.@=    =@
+      --:==+=-:=.    =%@%#*@@ *@+   #@+ =%@%%@%= #* %#=.:%*===*@ +%    +% -%*===*@
+      -++++=++++.    =-:::*@#  .     .    .::.   ..  ::   .::  .  .         .::  .
+       .-=+++=:     .*###%#=                                                      
+	      ::                                                                      
+`
+)
+
+var (
+	router          = mux.NewRouter()
+	profile         Profile
+	recipes         []*Recipe
+	margheritaPizza *Recipe
+)
+
+// init initializes the router with the homepage and recipe routes.
+func init() {
+
+	router.HandleFunc("", renderHomepage)
+	router.HandleFunc("recipe/", renderRecipes)
+
+	profile = Profile{
+		AboutMe:   "👋 I'm Mustapha, a contributor to gno.land project from France. I'm passionate about coding, exploring new technologies, and contributing to open-source projects. Besides my tech journey, I'm also a pizzaiolo 🍕 who loves cooking and savoring good food.",
+		Avatar:    "https://github.com/mous1985/assets/blob/master/avatar.png?raw=true",
+		Email:     "[email protected]",
+		Github:    "https://github.com/mous1985",
+		LinkedIn:  "https://www.linkedin.com/in/mustapha-benazzouz-88646887/",
+		Followers: &addrset.Set{},
+	}
+
+	margheritaPizza = &Recipe{
+		Name:         "Authentic Margherita Pizza 🤌",
+		Origin:       "Naples, 🇮🇹",
+		Author:       config.Address(),
+		Ingredients:  "  1kg 00 flour\n 500ml water\n 3g fresh yeast\n 20g sea salt\n San Marzano tomatoes\n Fresh buffalo mozzarella\n Fresh basil\n Extra virgin olive oil",
+		Instructions: " Mix flour and water until incorporated\n Add yeast and salt, knead for 20 minutes\n Let rise for 2 hours at room temperature\n Divide into 250g balls\n Cold ferment for 24-48 hours\n Shape by hand, being gentle with the dough\n Top with crushed tomatoes, torn mozzarella, and basil\n Cook at 450°C for 60-90 seconds",
+		Tips:         "Use a pizza steel or stone preheated for at least 1 hour. The dough should be soft and extensible. For best results, cook in a wood-fired oven.",
+	}
+
+	hof.Register()
+}
+
+// AddRecipe adds a new recipe in recipe page by users
+func AddRecipe(name, origin, ingredients, instructions, tips string) string {
+	if err := validateRecipe(name, ingredients, instructions); err != nil {
+		panic(err)
+	}
+
+	recipe := &Recipe{
+		Name:         name,
+		Origin:       origin,
+		Author:       std.PrevRealm().Addr(),
+		Ingredients:  ingredients,
+		Instructions: instructions,
+		Tips:         tips,
+	}
+	recipes = append(recipes, recipe)
+	return "Recipe added successfully!"
+}
+
+// validateRecipe checks if the provided recipe details are valid.
+func validateRecipe(name, ingredients, instructions string) error {
+	if name == "" {
+		return ufmt.Errorf("recipe name cannot be empty")
+	}
+	if len(ingredients) == 0 {
+		return ufmt.Errorf("ingredients cannot be empty")
+	}
+	if len(instructions) == 0 {
+		return ufmt.Errorf("instructions cannot be empty")
+	}
+	return nil
+}
+
+// Follow allows a users to follow my home page.
+// It checks if the caller is a valid user and if the address is already being followed.
+// If the caller is not authorized, it returns an error.
+// If the address is already being followed, it returns an error.
+// Otherwise, it adds the address to the list of followers and returns nil.
+// TODO:any user can follow and to be followed by any other user
+// TODO: add a function to unfollow
+
+func Follow(addr std.Address) error {
+	caller := std.PrevRealm().Addr()
+	if !isUser(caller) {
+		return config.ErrorUnauthorized
+	}
+	if profile.Followers.Has(addr) {
+		return ufmt.Errorf("address %s is already following", addr)
+	}
+	profile.Followers.Add(addr) //can't add the same address twice
+	return nil
+}
+
+func isUser(addr std.Address) bool {
+	return !isAuthorized(addr)
+}
+
+func isAuthorized(addr std.Address) bool {
+	return addr == config.Address() || addr == config.Backup()
+}
+
+func renderRecipes(res *mux.ResponseWriter, req *mux.Request) {
+	var b strings.Builder
+	b.WriteString("## World Kitchen\n\n------\n\n")
+
+	b.WriteString(margheritaPizza.Render())
+
+	if len(recipes) == 0 {
+		b.WriteString("No recipes yet. Be the first to add one!\n")
+		res.Write(b.String())
+		return
+	}
+
+	for _, recipe := range recipes {
+		b.WriteString(recipe.Render())
+	}
+
+	res.Write(b.String())
+}
+
+func (r Recipe) Render() string {
+	var out string
+	out += md.H2(r.Name)
+	out += md.Bold("Author:") + "\n" + r.Author.String() + "\n\n"
+	out += md.Bold("Origin:") + "\n" + r.Origin + "\n\n"
+	out += md.Bold("Ingredients:") + "\n" + md.BulletList(strings.Split(r.Ingredients, "\n")) + "\n\n"
+	out += md.Bold("Instructions:") + "\n" + md.OrderedList(strings.Split(r.Instructions, "\n")) + "\n\n"
+
+	if r.Tips != "" {
+		out += md.Italic("💡 Tips:"+"\n"+r.Tips) + "\n\n"
+	}
+
+	out += md.HorizontalRule() + "\n"
+	return out
+}
+
+func renderHomepage(res *mux.ResponseWriter, req *mux.Request) {
+	var out string
+	writeNavigation(&out)
+	out += profile.Render()
+	res.Write(out)
+}
+
+func (p Profile) Render() string {
+	var out string
+
+	out += md.H1("Welcome to my Homepage") + "\n\n" + md.HorizontalRule() + "\n\n"
+	out += "```\n"
+	out += gnoArt
+	out += "```\n------"
+	out += md.HorizontalRule() + "\n\n" + md.H2("About Me") + "\n\n"
+	out += md.Image("avatar", p.Avatar) + "\n\n"
+	out += p.AboutMe + "\n\n" + md.HorizontalRule() + "\n\n"
+	out += md.H3("Contact") + "\n\n"
+	out += md.BulletList([]string{
+		"Email: " + p.Email,
+		"GitHub: " + md.Link("@mous1985", p.Github),
+		"LinkedIn: " + md.Link("Mustapha", p.LinkedIn),
+	})
+	out += "\n\n" + md.Bold("👤 Followers: ") + strconv.Itoa(p.Followers.Size())
+
+	return out
+}
+
+func writeNavigation(out *string) {
+	navItems := []string{
+		md.Link("Home", ""),
+		md.Link("World Kitchen", Rec),
+		md.Link("Hackerspace", "https://github.com/gnolang/hackerspace/issues/86#issuecomment-2535795751"),
+	}
+	*out += strings.Join(navItems, " | ") + "\n\n" + md.HorizontalRule() + "\n\n"
+}
+
+func Render(path string) string {
+	return router.Render(path)
+}