check for empty selection and return early if blank.

this fixes a crash should a draw be attempted without a selection.

README.md

@@ -25,7 +25,7 @@ uv tool install lottery-tui
 *with pipx*
 
 ```console
-pipx install lotter-tui
+pipx install lottery-tui
 ```
 
 The TUI should now be discoverable as lottery-tui.

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "lottery-tui"
-version = "0.1.0"
+version = "0.2.1"
 description = "A terminal user interface for lottery games."
 authors = [{ name = "onyx-and-iris", email = "code@onyxandiris.online" }]
 dependencies = ["textual>=8.0.0"]
@@ -11,5 +11,13 @@ license = { text = "MIT" }
 [project.scripts]
 lottery-tui = "lottery_tui.tui:main"
 
+[build-system]
+requires = ["pdm-backend"]
+build-backend = "pdm.backend"
+
 [tool.pdm]
 distribution = true
+
+[tool.pdm.build]
+package-dir = "src"
+includes = ["src/**/*", "README.md", "LICENSE"]

src/lottery_tui/tui.py

@@ -37,11 +37,17 @@ class LotteryTUI(App):
     def on_button_pressed(self, event):
         """Handle button press events."""
         if event.button.id == 'draw-button':
+            if self.query_one('#lottery-select').is_blank():
+                self.query_one('#result-label').update(
+                    'Please select a lottery before drawing.'
+                )
+                return
+
             selected_lottery = self.query_one('#lottery-select').value
+
             try:
                 lottery_obj = request_lottery_obj(selected_lottery)
                 result = lottery_obj.draw()
-                self.query_one('#result-label').update(f'Result: {result}')
             except ValueError as e:
                 self.query_one('#result-label').update(str(e))
 

src/lottery_tui/tui.tcss

@@ -61,9 +61,7 @@ LotteryTUI {
     text-style: bold italic;
 }
 
-/* Additional styling for potential future widgets */
+/* Button styling */
-
-/* Button styling for lottery buttons */
 Button {
     background: #ffd700;
     border: round #e6c200;
@@ -86,22 +84,6 @@ Button:focus {
     color: #1a1a2e;
 }
 
-/* Input styling for lottery number inputs */
-Input {
-    background: #2d3748;
-    border: round #4a5568;
-    color: #ffd700;
-    height: 3;
-    margin: 1;
-    padding: 0 1;
-}
-
-Input:focus {
-    background: #374151;
-    border: round #ffd700;
-    color: #ffed4a;
-}
-
 /* Label styling */
 Label {
     color: #e2e8f0;
@@ -132,7 +114,7 @@ Label {
     color: #1a1a2e;
 }
 
-/* Results Label Styling - Enhanced Appearance */
+/* Results Label Styling */
 #result-label {
     background: #1a365d;
     border: thick #ffd700;
@@ -145,132 +127,3 @@ Label {
     content-align: left middle;
     width: 100%;
 }
-
-/* Container for lottery number display */
-.lottery-numbers {
-    align: center middle;
-    background: #2d3748;
-    border: round #ffd700;
-    height: auto;
-    margin: 2;
-    padding: 2;
-}
-
-/* Individual lottery number balls */
-.lottery-ball {
-    background: #ffd700;
-    border: round #e6c200;
-    color: #1a1a2e;
-    height: 3;
-    margin: 0 1;
-    text-align: center;
-    text-style: bold;
-    width: 6;
-}
-
-.lottery-ball:hover {
-    background: #ffed4a;
-    color: #16213e;
-}
-
-/* Results display */
-.results {
-    background: #1a202c;
-    border: round #4a5568;
-    color: #e2e8f0;
-    height: auto;
-    margin: 2;
-    padding: 2;
-}
-
-.winning-number {
-    color: #48bb78;
-    text-style: bold;
-}
-
-.losing-number {
-    color: #f56565;
-    text-style: italic;
-}
-
-/* Status bar */
-.status-bar {
-    background: #2d3748;
-    color: #a0aec0;
-    dock: bottom;
-    height: 1;
-    padding: 0 1;
-}
-
-/* Header */
-.header {
-    background: #ffd700;
-    color: #1a1a2e;
-    dock: top;
-    height: 3;
-    text-align: center;
-    text-style: bold;
-}
-
-/* Footer */
-.footer {
-    background: #1a1a2e;
-    color: #a0aec0;
-    dock: bottom;
-    height: 1;
-    text-align: center;
-    text-style: italic;
-}
-
-/* Sidebar styling */
-.sidebar {
-    background: #2d3748;
-    border-right: solid #4a5568;
-    dock: left;
-    width: 20;
-}
-
-/* Content area */
-.content {
-    background: $surface;
-    margin: 1;
-    padding: 1;
-}
-
-/* Error messages */
-.error {
-    background: #fed7d7;
-    border: round #f56565;
-    color: #c53030;
-    margin: 1;
-    padding: 1;
-    text-style: bold;
-}
-
-/* Success messages */
-.success {
-    background: #c6f6d5;
-    border: round #48bb78;
-    color: #22543d;
-    margin: 1;
-    padding: 1;
-    text-style: bold;
-}
-
-/* Loading spinner */
-.loading {
-    color: #ffd700;
-    text-align: center;
-    text-style: bold;
-}
-
-/* Prize display */
-.prize {
-    background: #ffd700;
-    border: round #e6c200;
-    color: #1a1a2e;
-    margin: 1;
-    padding: 2;
-    text-align: center;
-    text-style: bold;
-}