Community milestones

server.py

@@ -156,6 +156,40 @@ def write_state(connection, state):
     )
 
 
+def milestone_status(game_state, at):
+    """Eight fixed community goals; elapsed survival stops at the deadline."""
+    until = min(at, game_state["ended_at"] if game_state["ended_at"] is not None else game_state["deadline"])
+    elapsed = max(0, until - game_state["started_at"])
+    players = len(game_state["players"])
+    presses = len(game_state["presses"])
+    goals = [
+        ("day_one", "One day together", "The community kept the game alive for one day!", elapsed, 86400000),
+        ("one_week", "A week of nerve", "Seven days together. The clock is still part of our story!", elapsed, 7 * 86400000),
+        ("one_month", "Thirty days strong", "The game survived 30 days. What a community!", elapsed, 30 * 86400000),
+        ("ten_players", "A growing crowd", "Ten players have joined the experiment!", players, 10),
+        ("fifty_players", "Fifty strong", "Fifty players, one shared clock. Welcome aboard!", players, 50),
+        ("hundred_presses", "A hundred second chances", "Together we've pressed the button 100 times!", presses, 100),
+        ("thousand_presses", "A thousand moments", "1,000 presses. A thousand decisions to keep us going!", presses, 1000),
+        ("first_photo_finish", "Our first photo finish", "A community first: someone pressed with less than ten seconds left!", int(any(0 < p["remaining_ms"] < 10000 for p in game_state["presses"])), 1),
+    ]
+    return [{"id": key, "name": name, "message": message, "progress": min(progress, target), "target": target}
+            for key, name, message, progress, target in goals]
+
+
+def sync_milestones(connection, game_state, at=None):
+    """Commit unlocks with game changes. Existing goals are silently baselined once."""
+    at = now_ms() if at is None else at
+    initialized = connection.execute("SELECT 1 FROM community_milestones LIMIT 1").fetchone() is not None
+    for goal in milestone_status(game_state, at):
+        connection.execute("INSERT OR IGNORE INTO community_milestones (id) VALUES (?)", (goal["id"],))
+        if goal["progress"] >= goal["target"]:
+            connection.execute(
+                """UPDATE community_milestones SET reached_at = ?, announced_at = ?, message = ?
+                   WHERE id = ? AND reached_at IS NULL""",
+                (at, at if initialized else None, f"Milestone: {goal['name']}. {goal['message']}", goal["id"]),
+            )
+
+
 def load_state():
     if DATABASE_FILE.resolve() == DATA_FILE.resolve():
         raise ValueError("BUTTON_DATABASE_FILE must differ from the legacy BUTTON_DATA_FILE")
@@ -199,6 +233,12 @@ def load_state():
                 message TEXT NOT NULL CHECK (length(message) BETWEEN 1 AND 200)
             );
             CREATE INDEX IF NOT EXISTS chat_player_messages ON chat_messages (player_id, id);
+            CREATE TABLE IF NOT EXISTS community_milestones (
+                id TEXT PRIMARY KEY,
+                reached_at INTEGER,
+                announced_at INTEGER,
+                message TEXT
+            );
         """)
         columns = {row["name"] for row in connection.execute("PRAGMA table_info(chat_messages)")}
         if "kind" not in columns:
@@ -219,6 +259,7 @@ def load_state():
             # Any read/validation/SQL failure aborts startup without consuming the
             # JSON source or committing a partial game. The next start can retry.
             write_state(connection, loaded)
+            sync_milestones(connection, loaded)
             return loaded
 
         loaded = dict(game)
@@ -238,12 +279,14 @@ def load_state():
             press = dict(row)
             del press["position"]
             loaded["presses"].append(press)
+        sync_milestones(connection, loaded)
         return loaded
 
 
 def save_state(state):
     with database() as connection:
         write_state(connection, state)
+        sync_milestones(connection, state)
 
 
 state = load_state()
@@ -274,7 +317,12 @@ def public_presence():
 def chat_messages():
     with database() as connection:
         rows = connection.execute(
-            "SELECT id, name, at, message, kind FROM chat_messages ORDER BY id DESC LIMIT ?",
+            """SELECT id, name, at, message, kind FROM (
+                SELECT id, name, at, message, kind, 0 AS source, id AS position FROM chat_messages
+                UNION ALL
+                SELECT 'milestone:' || id, 'The Button', announced_at, message, 'milestone', 1, rowid
+                FROM community_milestones WHERE announced_at IS NOT NULL
+            ) ORDER BY at DESC, source DESC, position DESC LIMIT ?""",
             (CHAT_HISTORY_LIMIT,),
         ).fetchall()
     return [dict(row) for row in reversed(rows)]
@@ -319,6 +367,9 @@ def check_ended():
         state["ended"] = True
         state["ended_at"] = state["deadline"]
         save_state(state)
+    else:
+        with database() as connection:
+            sync_milestones(connection, state)
 
 
 def empty_zone_counts():
@@ -737,6 +788,7 @@ class Handler(BaseHTTPRequestHandler):
                             "INSERT INTO chat_messages (player_id, name, at, message, kind) VALUES (?, ?, ?, ?, 'press')",
                             (pid, "The Button", t, announcement),
                         )
+                        sync_milestones(connection, state, t)
                 except Exception:
                     # Keep memory consistent with the rolled-back database snapshot.
                     state["presses"].pop()