feat: GnoPub

packages/r/pierre115/gnopub/README.md

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+## GnoPUB 📺
+
+# Intro
+
+I aimed to recreate an advertising space similar to the Sandbox project, but encountered several challenges when trying to paste and integrate images onto the clickable surface.
+
+For now, the concept focuses on building an advertising grid where individual slots can be bought and sold. Once a plot is purchased, it becomes a link to the buyer’s advertisement, which can be configured using the `UpdateCell` function.
+Each ad is tied to a specific cell, allowing users to own multiple spaces for different promotional content.
+
+# Tutorial
+
+### Step 1
+Buy a cell with the function `BuyCell`
+### Step 2
+Set the ads and the label with the function `UpdateCell` on yours cells
+### Step 3
+Sell your cells with the function `SellCell`
+
+# RoadMap
+
+ - Add determined price (`n` / `a`) * `price`
+
+Where `n is the number of cells` and `a is the number of available cells`
+
+ - Add number of clicks
+

packages/r/pierre115/gnopub/gnomod.toml

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+module = "gno.land/r/pierre115/gnopub"
+gno = "0.9"

packages/r/pierre115/gnopub/grid.gno

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+package gnopub
+
+import (
+	"chain/runtime"
+
+	"gno.land/p/nt/ownable"
+	"gno.land/p/nt/ufmt"
+)
+
+var (
+	OwnableAddress = ownable.NewWithAddress("g1e7r5eglptfejknps3xv2kxv6pc8wvd3wwtw6tg")
+
+	colors = []string{"#ffffff", "#f44336", "#2196f3", "#4caf50", "#ff9800"} // blanc, rouge, bleu, vert, orange
+
+	spacingCount = 23
+
+	defaultlink = ufmt.Sprintf("/r/leon/hor:hall")
+
+	grid Grid
+)
+
+const (
+	cellSize     = 100
+	defaultcolor = "#ffffff"
+)
+
+// Cell structure init
+func init() {
+	grid = Grid{
+		Width:  5,
+		Height: 5,
+		Cells:  make(map[string]Cell),
+	}
+}
+
+// Function to validate the coordinates
+func getCoordinate(x, y int) string {
+	if x < 0 || x >= grid.Width || y < 0 || y >= grid.Height {
+		return ufmt.Sprintf("Invalid coordinate : X=%d, Y=%d", x, y)
+	}
+	return ""
+}
+
+// Function to sell a cell
+func SellCell(_ realm, x, y int) string {
+	if err := getCoordinate(x, y); err != "" {
+		return err
+	}
+
+	key := ufmt.Sprintf("%d,%d", x, y)
+	caller := runtime.PreviousRealm().Address()
+	cell, exists := grid.Cells[key]
+
+	if exists && cell.Owner == caller {
+		grid.Cells[key] = Cell{
+			X:     x,
+			Y:     y,
+			Color: "",
+			Owner: "",
+			Url:   "",
+			Label: "",
+		}
+		return ufmt.Sprintf("The cell was successfully sold.", x, y)
+	}
+
+	return "You are not the owner of this cell."
+}
+
+// Function to update the Ads and the Label of yours cells
+func UpdateCell(_ realm, x, y int, url, label string) string {
+	if err := getCoordinate(x, y); err != "" {
+		return err
+	}
+
+	key := ufmt.Sprintf("%d,%d", x, y)
+	caller := runtime.PreviousRealm().Address()
+	cell, exists := grid.Cells[key]
+
+	if exists && cell.Owner == caller {
+		grid.Cells[key] = Cell{
+			X:     x,
+			Y:     y,
+			Color: cell.Color,
+			Owner: cell.Owner,
+			Url:   url,
+			Label: label,
+		}
+		return ufmt.Sprintf("The cell Url was successfully Updated!")
+	}
+
+	return "You are not the owner of this cell."
+}
+
+// Cell clicked function if the cells is not owned
+func BuyCell(_ realm, x, y int) string {
+	if err := getCoordinate(x, y); err != "" {
+		return err
+	}
+
+	key := ufmt.Sprintf("%d,%d", x, y)
+	caller := runtime.PreviousRealm().Address()
+
+	// If the cells is not owned, buy it
+	cell, exists := grid.Cells[key]
+	if !exists || cell.Owner == "" {
+		grid.Cells[key] = Cell{
+			X:     x,
+			Y:     y,
+			Color: colors[1], // red at first
+			Owner: caller,
+			Url:   "",
+			Label: "",
+		}
+		return ufmt.Sprintf("The cell was successfully (%d,%d) purchased!", x, y)
+	}
+
+	// if it is the person who own it, change the color
+	if cell.Owner == caller {
+		currentColorIndex := 0
+		for i, c := range colors {
+			if c == cell.Color {
+				currentColorIndex = i
+				break
+			}
+		}
+		nextColorIndex := (currentColorIndex + 1) % len(colors)
+		cell.Color = colors[nextColorIndex]
+		grid.Cells[key] = cell
+		return ufmt.Sprintf("The cells (%d,%d) was updated! New color: %s", x, y, getColorName(cell.Color))
+	}
+
+	return "This cell is owned."
+}
+
+// Reset grid (admin only)
+func Reset() string {
+	if !isAuthorized(runtime.PreviousRealm().Address()) {
+		panic("unauthorized")
+	}
+	grid.Cells = make(map[string]Cell)
+	return "The grid was successfully reset."
+}
+
+func isAuthorized(addr address) bool {
+	return addr == OwnableAddress.Owner()
+}

packages/r/pierre115/gnopub/grid_test.gno

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+package gnopub
+
+import (
+	"strings"
+	"testing"
+)
+
+// Test for basic grid rendering
+func TestRenderGrid(t *testing.T) {
+	got := renderGrid()
+
+	if got == "" {
+		t.Fatal("RenderGrid output is empty")
+	}
+
+	if !strings.Contains(got, "svg") {
+		t.Error("expected at least one SVG element in render output")
+	}
+
+	if !strings.Contains(got, "BuyCell") {
+		t.Error("expected 'BuyCells' tutorial step in render output")
+	}
+
+	if !strings.Contains(got, "available") {
+		t.Error("expected 'available' label for unowned cells")
+	}
+}

packages/r/pierre115/gnopub/helpers.gno

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+package gnopub
+
+func getColorName(color string) string {
+	switch color {
+	case "#f44336":
+		return "Red"
+	case "#2196f3":
+		return "Blue"
+	case "#4caf50":
+		return "Green"
+	case "#ff9800":
+		return "Orange"
+	default:
+		return "White"
+	}
+}

packages/r/pierre115/gnopub/render.gno

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+package gnopub
+
+import (
+	"chain/runtime"
+	"strings"
+
+	"gno.land/p/leon/svgbtn"
+	"gno.land/p/moul/txlink"
+	"gno.land/p/nt/ufmt"
+)
+
+func Render(path string) string {
+	out := "# GnoADS 📺\n\n"
+	out += "### ADS Grid \n\n"
+
+	// Path handling
+	if path == "stats" {
+		return out + getStats() + "\n\n[← Retour](/r/gnopixel)"
+	}
+
+	// Main grid
+	out += renderGrid() + "\n\n"
+
+	// Tutorial
+	out += "## Tuto 📚\n\n"
+
+	out += "### Step 1: Buy a cell\n\n"
+	out += "Click on a white cell in the grid or use the BuyCell function:\n\n"
+	out += svgbtn.Button(120, 35, "#4caf50", "#ffffff", "Buy Cell (0,0)", "/r/pierre115/gnoads$help&func=BuyCell&x=0&y=0") + "\n\n"
+	out += "Replace x and y with your desired coordinates.\n\n"
+
+	out += "### Step 2: Update your cell\n\n"
+	out += "Set the ads URL and label for your cell:\n\n"
+	out += svgbtn.Button(120, 35, "#4caf50", "#ffffff", "Update Cell (0,0)", "/r/pierre115/gnoads$help&func=UpdateCell&x=0&y=0&url=https://github.com/gnolang/hackerspace/issues/122&label=test") + "\n\n"
+	out += "- `x`, `y`: coordinates of your cell\n"
+	out += "- `url`: your advertisement URL (must start with http)\n"
+	out += "- `label`: text to display\n\n"
+
+	out += "### Step 3: Change color\n\n"
+	out += "Click again on your owned cell to cycle through colors:\n\n"
+	out += svgbtn.Button(120, 35, "#4caf50", "#ffffff", "Change Color (0,0)", "/r/pierre115/gnoads$help&func=BuyCell&x=0&y=0") + "\n\n"
+
+	out += "### Step 4: Sell your cell\n\n"
+	out += "Release your cell back to the grid:\n\n"
+	out += svgbtn.Button(120, 35, "#4caf50", "#ffffff", "Sell Cell (0,0)", "/r/pierre115/gnoads$help&func=SellCell&x=0&y=0") + "\n\n"
+
+	// Utility buttons
+	out += "---\n\n"
+	out += "## Admin Pannel 🛠️\n\n"
+	out += svgbtn.DangerButton(100, 30, "Reset", "/r/gnopixel$help&func=reset") + "\n\n"
+
+	// Stats
+	out += getStats()
+
+	return out
+}
+
+// Render the grid
+func renderGrid() string {
+	out := ""
+
+	// Grid cells
+	for y := 0; y < grid.Height; y++ {
+		for x := 0; x < grid.Width; x++ {
+			key := ufmt.Sprintf("%d,%d", x, y)
+			color := defaultcolor
+			link := defaultlink
+			// If the cell is owned, use its color
+			if cell, ok := grid.Cells[key]; ok {
+				color = cell.Color
+				caller := runtime.PreviousRealm().Address()
+
+				if cell.Url != "" {
+					link = cell.Url
+				}
+
+				// If the cell is owned by someone else, link to their pub if set
+				if cell.Owner != "" && cell.Owner != caller {
+					out += svgbtn.Button(cellSize, cellSize, color, "#333333", cell.Label, link)
+					out += strings.Repeat("&nbsp;", spacingCount)
+					continue
+				}
+			}
+			link = txlink.NewLink("BuyCell").
+				AddArgs("x", ufmt.Sprintf("%d", x), "y", ufmt.Sprintf("%d", y)).
+				URL()
+			out += svgbtn.Button(cellSize, cellSize, color, "#333333", "available", link)
+			out += strings.Repeat("&nbsp;", spacingCount)
+		}
+		out += "\n\n"
+	}
+
+	return out
+}
+
+// Stats of the grid (per cells owners)
+func getStats() string {
+	stats := make(map[address]int)
+	for _, cell := range grid.Cells {
+		if cell.Owner != "" {
+			stats[cell.Owner]++
+		}
+	}
+
+	out := "## Stats 📊:\n"
+	if len(stats) == 0 {
+		out += "No cells used.\n"
+		return out
+	}
+
+	for owner, count := range stats {
+		out += ufmt.Sprintf("- %s: %d cell(s)\n", owner.String(), count)
+	}
+	return out
+}

packages/r/pierre115/gnopub/type.gno

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+package gnopub
+
+// Cell structure
+type Cell struct {
+	X     int
+	Y     int
+	Color string  // Colors of the cells if owned
+	Owner address // Address of the owner
+	Url   string  // Url of the ads
+	Label string  // Pseudo of the owner / name of the ads
+}
+
+// Global grid variable
+type Grid struct {
+	Width  int
+	Height int
+	Cells  map[string]Cell
+}