feat: registre des votes feature_votes #94

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app.py

@@ -76,6 +76,13 @@ cache.init_app(
 
 app: Dash = Dash(
     server=server,
+    # name="src" (et non "src.app") pour que use_pages enregistre les pages sous
+    # le namespace `src.pages.*`, identique aux imports inter-pages (ex.
+    # inscription.py: `from src.pages.connexion import linkedin_button`). Sinon
+    # Dash découvre `pages.connexion` tandis que l'import explicite crée
+    # `src.pages.connexion` : deux identités, même URL → "duplicate paths" →
+    # check_for_duplicate_pathnames lève à chaque requête → 500 sur toute l'app.
+    name="src",
     title="decp.info",
     use_pages=True,
     suppress_callback_exceptions=True,
@@ -109,6 +116,10 @@ from src.saved_views import db as saved_views_db  # noqa: E402
 
 saved_views_db.init_schema()
 
+from src.roadmap import db as roadmap_db  # noqa: E402
+
+roadmap_db.init_schema()
+
 
 # robots.txt
 @app.server.route("/robots.txt")

src/roadmap/db.py

@@ -0,0 +1,42 @@
+from datetime import datetime, timezone
+
+from src.auth.db import get_conn
+
+SCHEMA = """
+CREATE TABLE IF NOT EXISTS feature_votes (
+    id           INTEGER PRIMARY KEY AUTOINCREMENT,
+    user_id      INTEGER NOT NULL,
+    issue_number INTEGER NOT NULL,
+    created_at   TEXT NOT NULL,
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
+);
+CREATE INDEX IF NOT EXISTS idx_feature_votes_issue
+    ON feature_votes(issue_number);
+"""
+
+
+def _now() -> str:
+    return datetime.now(timezone.utc).isoformat()
+
+
+def init_schema() -> None:
+    get_conn().executescript(SCHEMA)
+
+
+def record_vote(user_id: int, issue_number: int) -> None:
+    get_conn().execute(
+        "INSERT INTO feature_votes (user_id, issue_number, created_at) "
+        "VALUES (?, ?, ?)",
+        (user_id, issue_number, _now()),
+    )
+
+
+def vote_counts() -> dict[int, int]:
+    rows = (
+        get_conn()
+        .execute(
+            "SELECT issue_number, COUNT(*) FROM feature_votes GROUP BY issue_number"
+        )
+        .fetchall()
+    )
+    return {row[0]: row[1] for row in rows}