Refactor item behavior into server/client registries

client/src/items/itemRegistry.ts

@@ -0,0 +1,135 @@
+import { EFFECT_SEQUENCE } from '../audio/effects';
+import { RADIO_CHANNEL_OPTIONS } from '../audio/radioStationRuntime';
+import { type ItemType, type WorldItem } from '../state/gameState';
+
+export const CLOCK_TIME_ZONE_OPTIONS = [
+  'America/Anchorage',
+  'America/Argentina/Buenos_Aires',
+  'America/Chicago',
+  'America/Detroit',
+  'America/Halifax',
+  'America/Indiana/Indianapolis',
+  'America/Kentucky/Louisville',
+  'America/Los_Angeles',
+  'America/St_Johns',
+  'Asia/Bangkok',
+  'Asia/Dhaka',
+  'Asia/Dubai',
+  'Asia/Hong_Kong',
+  'Asia/Kabul',
+  'Asia/Karachi',
+  'Asia/Kathmandu',
+  'Asia/Kolkata',
+  'Asia/Seoul',
+  'Asia/Singapore',
+  'Asia/Tehran',
+  'Asia/Tokyo',
+  'Asia/Yangon',
+  'Atlantic/Azores',
+  'Atlantic/South_Georgia',
+  'Australia/Brisbane',
+  'Australia/Darwin',
+  'Australia/Eucla',
+  'Australia/Lord_Howe',
+  'Europe/Berlin',
+  'Europe/Helsinki',
+  'Europe/London',
+  'Europe/Moscow',
+  'Pacific/Apia',
+  'Pacific/Auckland',
+  'Pacific/Chatham',
+  'Pacific/Honolulu',
+  'Pacific/Kiritimati',
+  'Pacific/Noumea',
+  'Pacific/Pago_Pago',
+  'UTC',
+] as const;
+
+export const ITEM_TYPE_SEQUENCE: ItemType[] = ['clock', 'dice', 'radio_station', 'wheel'];
+
+const ITEM_TYPE_EDITABLE_PROPERTIES: Record<ItemType, string[]> = {
+  radio_station: ['title', 'streamUrl', 'enabled', 'channel', 'volume', 'effect', 'effectValue'],
+  dice: ['title', 'sides', 'number'],
+  wheel: ['title', 'spaces'],
+  clock: ['title', 'timeZone', 'use24Hour'],
+};
+
+export const ITEM_TYPE_GLOBAL_PROPERTIES: Record<ItemType, Record<string, string | number | boolean>> = {
+  radio_station: { useSound: 'none', emitSound: 'none', useCooldownMs: 1000 },
+  dice: { useSound: 'sounds/roll.ogg', emitSound: 'none', useCooldownMs: 1000 },
+  wheel: { useSound: 'sounds/spin.ogg', emitSound: 'none', useCooldownMs: 4000 },
+  clock: { useSound: 'none', emitSound: 'sounds/clock.ogg', useCooldownMs: 1000 },
+};
+
+export const EDITABLE_ITEM_PROPERTY_KEYS = new Set<string>(
+  Array.from(
+    new Set(
+      Object.values(ITEM_TYPE_EDITABLE_PROPERTIES).flatMap((keys) => keys),
+    ),
+  ),
+);
+
+const OPTION_ITEM_PROPERTY_VALUES: Partial<Record<string, string[]>> = {
+  effect: EFFECT_SEQUENCE.map((effect) => effect.id),
+  channel: [...RADIO_CHANNEL_OPTIONS],
+  timeZone: [...CLOCK_TIME_ZONE_OPTIONS],
+};
+
+export function getItemPropertyOptionValues(key: string): string[] | undefined {
+  return OPTION_ITEM_PROPERTY_VALUES[key];
+}
+
+export function itemTypeLabel(type: ItemType): string {
+  if (type === 'radio_station') return 'radio';
+  return type;
+}
+
+export function itemPropertyLabel(key: string): string {
+  if (key === 'use24Hour') return 'use 24 hour format';
+  return key;
+}
+
+export function getEditableItemPropertyKeys(item: WorldItem): string[] {
+  return [...(ITEM_TYPE_EDITABLE_PROPERTIES[item.type] ?? ['title'])];
+}
+
+export function getInspectItemPropertyKeys(item: WorldItem): string[] {
+  const editableKeys = getEditableItemPropertyKeys(item);
+  const seen = new Set(editableKeys);
+  const allKeys: string[] = [...editableKeys];
+
+  const baseKeys = [
+    'type',
+    'x',
+    'y',
+    'carrierId',
+    'version',
+    'createdBy',
+    'createdAt',
+    'updatedAt',
+    'capabilities',
+    'useSound',
+    'emitSound',
+  ];
+  for (const key of baseKeys) {
+    if (seen.has(key)) continue;
+    seen.add(key);
+    allKeys.push(key);
+  }
+
+  const paramKeys = Object.keys(item.params).sort((a, b) => a.localeCompare(b));
+  for (const key of paramKeys) {
+    if (seen.has(key)) continue;
+    seen.add(key);
+    allKeys.push(key);
+  }
+
+  const globalKeys = Object.keys(ITEM_TYPE_GLOBAL_PROPERTIES[item.type] ?? {}).sort((a, b) => a.localeCompare(b));
+  for (const key of globalKeys) {
+    if (seen.has(key)) continue;
+    seen.add(key);
+    allKeys.push(key);
+  }
+
+  return allKeys;
+}

client/src/main.ts

@@ -6,7 +6,7 @@ import {
   clampEffectLevel,
   type EffectId,
 } from './audio/effects';
-import { RADIO_CHANNEL_OPTIONS, RadioStationRuntime, normalizeRadioChannel, normalizeRadioEffect, normalizeRadioEffectValue } from './audio/radioStationRuntime';
+import { RadioStationRuntime, normalizeRadioChannel, normalizeRadioEffect, normalizeRadioEffectValue } from './audio/radioStationRuntime';
 import { ItemEmitRuntime } from './audio/itemEmitRuntime';
 import {
   applyPastedText,
@@ -29,9 +29,19 @@ import {
   getDirection,
   getNearestItem,
   getNearestPeer,
-  type ItemType,
   type WorldItem,
 } from './state/gameState';
+import {
+  CLOCK_TIME_ZONE_OPTIONS,
+  EDITABLE_ITEM_PROPERTY_KEYS,
+  ITEM_TYPE_GLOBAL_PROPERTIES,
+  ITEM_TYPE_SEQUENCE,
+  getEditableItemPropertyKeys,
+  getInspectItemPropertyKeys,
+  getItemPropertyOptionValues,
+  itemPropertyLabel,
+  itemTypeLabel,
+} from './items/itemRegistry';
 import { PeerManager } from './webrtc/peerManager';
 
 const EFFECT_LEVELS_STORAGE_KEY = 'chatGridEffectLevels';
@@ -128,77 +138,9 @@ type AudioLayerState = {
 
 const APP_VERSION = String(window.CHGRID_WEB_VERSION ?? '').trim();
 const DISPLAY_TIME_ZONE = resolveDisplayTimeZone();
-const CLOCK_TIME_ZONE_OPTIONS = [
-  'America/Anchorage',
-  'America/Argentina/Buenos_Aires',
-  'America/Chicago',
-  'America/Detroit',
-  'America/Halifax',
-  'America/Indiana/Indianapolis',
-  'America/Kentucky/Louisville',
-  'America/Los_Angeles',
-  'America/St_Johns',
-  'Asia/Bangkok',
-  'Asia/Dhaka',
-  'Asia/Dubai',
-  'Asia/Hong_Kong',
-  'Asia/Kabul',
-  'Asia/Karachi',
-  'Asia/Kathmandu',
-  'Asia/Kolkata',
-  'Asia/Seoul',
-  'Asia/Singapore',
-  'Asia/Tehran',
-  'Asia/Tokyo',
-  'Asia/Yangon',
-  'Atlantic/Azores',
-  'Atlantic/South_Georgia',
-  'Australia/Brisbane',
-  'Australia/Darwin',
-  'Australia/Eucla',
-  'Australia/Lord_Howe',
-  'Europe/Berlin',
-  'Europe/Helsinki',
-  'Europe/London',
-  'Europe/Moscow',
-  'Pacific/Apia',
-  'Pacific/Auckland',
-  'Pacific/Chatham',
-  'Pacific/Honolulu',
-  'Pacific/Kiritimati',
-  'Pacific/Noumea',
-  'Pacific/Pago_Pago',
-  'UTC',
-] as const;
 dom.appVersion.textContent = APP_VERSION
   ? `Another AI experiment with Jage. Version ${APP_VERSION}`
   : 'Another AI experiment with Jage. Version unknown';
-const ITEM_TYPE_SEQUENCE: ItemType[] = ['clock', 'dice', 'radio_station', 'wheel'];
-const ITEM_TYPE_GLOBAL_PROPERTIES: Record<ItemType, Record<string, string | number | boolean>> = {
-  radio_station: { useSound: 'none', emitSound: 'none', useCooldownMs: 1000 },
-  dice: { useSound: 'sounds/roll.ogg', emitSound: 'none', useCooldownMs: 1000 },
-  wheel: { useSound: 'sounds/spin.ogg', emitSound: 'none', useCooldownMs: 4000 },
-  clock: { useSound: 'none', emitSound: 'sounds/clock.ogg', useCooldownMs: 1000 },
-};
-const EDITABLE_ITEM_PROPERTY_KEYS = new Set([
-  'title',
-  'streamUrl',
-  'enabled',
-  'channel',
-  'volume',
-  'effect',
-  'effectValue',
-  'spaces',
-  'sides',
-  'number',
-  'timeZone',
-  'use24Hour',
-]);
-const OPTION_ITEM_PROPERTY_VALUES: Partial<Record<string, string[]>> = {
-  effect: EFFECT_SEQUENCE.map((effect) => effect.id),
-  channel: [...RADIO_CHANNEL_OPTIONS],
-  timeZone: [...CLOCK_TIME_ZONE_OPTIONS],
-};
 const APP_BASE_URL = import.meta.env.BASE_URL || '/';
 function withBase(path: string): string {
   const normalizedBase = APP_BASE_URL.endsWith('/') ? APP_BASE_URL : `${APP_BASE_URL}/`;
@@ -574,20 +516,10 @@ function getPeerNamesAtPosition(x: number, y: number): string[] {
     .map((peer) => peer.nickname);
 }
 
-function itemTypeLabel(type: ItemType): string {
-  if (type === 'radio_station') return 'radio';
-  return type;
-}
-
 function itemLabel(item: WorldItem): string {
   return `${item.title} (${itemTypeLabel(item.type)})`;
 }
 
-function itemPropertyLabel(key: string): string {
-  if (key === 'use24Hour') return 'use 24 hour format';
-  return key;
-}
-
 function openHelpViewer(): void {
   if (helpViewerLines.length === 0) {
     updateStatus('Help unavailable.');
@@ -623,61 +555,6 @@ function beginItemSelection(context: 'pickup' | 'delete' | 'edit' | 'use' | 'ins
   audio.sfxUiBlip();
 }
 
-function getEditableItemPropertyKeys(item: WorldItem): string[] {
-  const keys = ['title'];
-  if (item.type === 'radio_station') {
-    keys.push('streamUrl', 'enabled', 'channel', 'volume', 'effect', 'effectValue');
-  } else if (item.type === 'dice') {
-    keys.push('sides', 'number');
-  } else if (item.type === 'wheel') {
-    keys.push('spaces');
-  } else if (item.type === 'clock') {
-    keys.push('timeZone', 'use24Hour');
-  }
-  return keys;
-}
-
-function getInspectItemPropertyKeys(item: WorldItem): string[] {
-  const editableKeys = getEditableItemPropertyKeys(item);
-  const seen = new Set(editableKeys);
-  const allKeys: string[] = [...editableKeys];
-
-  const baseKeys = [
-    'type',
-    'x',
-    'y',
-    'carrierId',
-    'version',
-    'createdBy',
-    'createdAt',
-    'updatedAt',
-    'capabilities',
-    'useSound',
-    'emitSound',
-  ];
-  for (const key of baseKeys) {
-    if (seen.has(key)) continue;
-    seen.add(key);
-    allKeys.push(key);
-  }
-
-  const paramKeys = Object.keys(item.params).sort((a, b) => a.localeCompare(b));
-  for (const key of paramKeys) {
-    if (seen.has(key)) continue;
-    seen.add(key);
-    allKeys.push(key);
-  }
-
-  const globalKeys = Object.keys(ITEM_TYPE_GLOBAL_PROPERTIES[item.type] ?? {}).sort((a, b) => a.localeCompare(b));
-  for (const key of globalKeys) {
-    if (seen.has(key)) continue;
-    seen.add(key);
-    allKeys.push(key);
-  }
-
-  return allKeys;
-}
-
 function beginItemProperties(item: WorldItem, showAll = false): void {
   state.selectedItemId = item.id;
   state.mode = 'itemProperties';
@@ -701,7 +578,7 @@ function useItem(item: WorldItem): void {
 }
 
 function openItemPropertyOptionSelect(item: WorldItem, key: string): void {
-  const options = OPTION_ITEM_PROPERTY_VALUES[key];
+  const options = getItemPropertyOptionValues(key);
   if (!options || options.length === 0) {
     return;
   }
@@ -1999,7 +1876,7 @@ function handleItemPropertiesModeInput(code: string, key: string): void {
       audio.sfxUiBlip();
       return;
     }
-    if (OPTION_ITEM_PROPERTY_VALUES[key]) {
+    if (getItemPropertyOptionValues(key)) {
       openItemPropertyOptionSelect(item, key);
       return;
     }

docs/item-schema.md

@@ -46,6 +46,8 @@
 
 - Persisted state stores only instance data.
 - Global/type-level properties are loaded from server registry in `server/app/item_catalog.py`.
+- Per-type use/update validation and message behavior are handled in `server/app/item_type_handlers.py`.
+- Client-side add/edit metadata is handled in `client/src/items/itemRegistry.ts`.
 
 ## Type Params
 

docs/item-types.md

@@ -95,3 +95,28 @@ This is behavior-focused documentation for item types and their defaults.
 ### Validation
 - `timeZone`: one of `CLOCK_TIME_ZONE_OPTIONS` in `server/app/item_catalog.py`
 - `use24Hour`: boolean or on/off style input
+
+## Adding A New Item Type (Registry V1)
+
+Item types are currently code-registered on both server and client so new types are additive instead of editing one large branch.
+
+1. Server catalog: add global defaults in `server/app/item_catalog.py` (`ITEM_DEFINITIONS`).
+2. Server handlers: add `validate_update` + `use` logic in `server/app/item_type_handlers.py` and register it in `ITEM_TYPE_HANDLERS`.
+3. Server models: extend `ItemType` literals in `server/app/models.py` and any packet enums that list item types.
+4. Client registry: add type metadata in `client/src/items/itemRegistry.ts` (`ITEM_TYPE_SEQUENCE`, editable properties, and global property hints).
+5. Client protocol types: update item-type unions in `client/src/network/protocol.ts` and `client/src/state/gameState.ts`.
+6. Tests: add or update server tests under `server/tests/` for use/update validation and cooldown behavior.
+
+### Example Shape
+
+A minimal new item type usually needs:
+
+- Catalog defaults:
+  - `default_title`
+  - `default_params`
+  - `use_sound` / `emit_sound`
+  - `use_cooldown_ms`
+- Handler behavior:
+  - validate params on update
+  - build self/others use messages
+  - optionally return delayed result text

server/app/item_type_handlers.py

@@ -0,0 +1,237 @@
+"""Per-item-type use/update handlers for modular item behavior."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+import random
+from typing import Callable
+
+from .item_catalog import CLOCK_DEFAULT_TIME_ZONE, CLOCK_TIME_ZONE_OPTIONS, ItemType
+from .models import WorldItem
+
+RADIO_EFFECT_IDS = {"reverb", "echo", "flanger", "high_pass", "low_pass", "off"}
+RADIO_CHANNEL_IDS = {"stereo", "mono", "left", "right"}
+
+
+@dataclass(frozen=True)
+class ItemUseResult:
+    """Result payload for a successful item use action."""
+
+    self_message: str
+    others_message: str
+    updated_params: dict | None = None
+    delayed_self_message: str | None = None
+    delayed_others_message: str | None = None
+
+
+def _parse_enabled(value: object) -> bool:
+    """Parse radio enabled-like values with permissive defaults."""
+
+    if isinstance(value, bool):
+        return value
+    if isinstance(value, (int, float)):
+        return bool(value)
+    if isinstance(value, str):
+        return value.strip().lower() in {"on", "true", "1", "yes"}
+    return True
+
+
+def _parse_clock_use_24_hour(value: object) -> bool | None:
+    """Parse bool-like clock format values (`on/off`, `true/false`, etc.)."""
+
+    if isinstance(value, bool):
+        return value
+    if isinstance(value, (int, float)):
+        return bool(value)
+    if isinstance(value, str):
+        token = value.strip().lower()
+        if token in {"on", "true", "1", "yes"}:
+            return True
+        if token in {"off", "false", "0", "no"}:
+            return False
+    return None
+
+
+def _validate_radio_update(item: WorldItem, next_params: dict) -> dict:
+    """Validate and normalize `radio_station` params."""
+
+    stream_url = str(next_params.get("streamUrl", "")).strip()
+    previous_stream_url = str(item.params.get("streamUrl", "")).strip()
+    next_params["streamUrl"] = stream_url
+    enabled_value = next_params.get("enabled", True)
+    if isinstance(enabled_value, bool):
+        enabled = enabled_value
+    elif isinstance(enabled_value, (int, float)):
+        enabled = bool(enabled_value)
+    elif isinstance(enabled_value, str):
+        token = enabled_value.strip().lower()
+        if token in {"on", "true", "1", "yes"}:
+            enabled = True
+        elif token in {"off", "false", "0", "no"}:
+            enabled = False
+        else:
+            raise ValueError("enabled must be true/false or on/off.")
+    else:
+        raise ValueError("enabled must be true/false or on/off.")
+    if stream_url and stream_url != previous_stream_url:
+        enabled = True
+    if not stream_url:
+        enabled = False
+    next_params["enabled"] = enabled
+
+    try:
+        volume = int(next_params.get("volume", 50))
+    except (TypeError, ValueError) as exc:
+        raise ValueError("volume must be a number.") from exc
+    if not (0 <= volume <= 100):
+        raise ValueError("volume must be between 0 and 100.")
+    next_params["volume"] = volume
+
+    effect = str(next_params.get("effect", "off")).strip().lower()
+    if effect not in RADIO_EFFECT_IDS:
+        raise ValueError("effect must be one of reverb, echo, flanger, high_pass, low_pass, off.")
+    next_params["effect"] = effect
+
+    channel = str(next_params.get("channel", "stereo")).strip().lower()
+    if channel not in RADIO_CHANNEL_IDS:
+        raise ValueError("channel must be one of stereo, mono, left, right.")
+    next_params["channel"] = channel
+
+    try:
+        effect_value = float(next_params.get("effectValue", 50))
+    except (TypeError, ValueError) as exc:
+        raise ValueError("effectValue must be a number.") from exc
+    if not (0 <= effect_value <= 100):
+        raise ValueError("effectValue must be between 0 and 100.")
+    next_params["effectValue"] = round(effect_value, 1)
+    return next_params
+
+
+def _validate_dice_update(_item: WorldItem, next_params: dict) -> dict:
+    """Validate and normalize `dice` params."""
+
+    try:
+        sides = int(next_params.get("sides", 6))
+        number = int(next_params.get("number", 2))
+    except (TypeError, ValueError) as exc:
+        raise ValueError("Dice values must be numbers.") from exc
+    if not (1 <= sides <= 100 and 1 <= number <= 100):
+        raise ValueError("Dice sides and number must be between 1 and 100.")
+    next_params["sides"] = sides
+    next_params["number"] = number
+    return next_params
+
+
+def _validate_wheel_update(_item: WorldItem, next_params: dict) -> dict:
+    """Validate and normalize `wheel` params."""
+
+    spaces_raw = next_params.get("spaces", "")
+    if not isinstance(spaces_raw, str):
+        raise ValueError("spaces must be a comma-delimited string.")
+    spaces = [token.strip() for token in spaces_raw.split(",") if token.strip()]
+    if not spaces:
+        raise ValueError("spaces must include at least one value, separated by commas.")
+    if len(spaces) > 100:
+        raise ValueError("spaces supports up to 100 values.")
+    if any(len(token) > 80 for token in spaces):
+        raise ValueError("each space must be 80 chars or less.")
+    next_params["spaces"] = ", ".join(spaces)
+    return next_params
+
+
+def _validate_clock_update(_item: WorldItem, next_params: dict) -> dict:
+    """Validate and normalize `clock` params."""
+
+    time_zone = str(next_params.get("timeZone", CLOCK_DEFAULT_TIME_ZONE)).strip()
+    if time_zone not in CLOCK_TIME_ZONE_OPTIONS:
+        raise ValueError(f"timeZone must be one of {', '.join(CLOCK_TIME_ZONE_OPTIONS)}.")
+    use_24_hour = _parse_clock_use_24_hour(next_params.get("use24Hour"))
+    if use_24_hour is None:
+        raise ValueError("use24Hour must be on/off.")
+    next_params["timeZone"] = time_zone
+    next_params["use24Hour"] = use_24_hour
+    return next_params
+
+
+def _use_radio(item: WorldItem, nickname: str, _clock_formatter: Callable[[dict], str]) -> ItemUseResult:
+    """Compute `radio_station` use result and next params."""
+
+    currently_enabled = _parse_enabled(item.params.get("enabled", True))
+    next_enabled = not currently_enabled
+    state_text = "on" if next_enabled else "off"
+    return ItemUseResult(
+        self_message=f"You turn {state_text} {item.title}.",
+        others_message=f"{nickname} turns {state_text} {item.title}.",
+        updated_params={**item.params, "enabled": next_enabled},
+    )
+
+
+def _use_dice(item: WorldItem, nickname: str, _clock_formatter: Callable[[dict], str]) -> ItemUseResult:
+    """Compute `dice` use result."""
+
+    try:
+        sides = max(1, min(100, int(item.params.get("sides", 6))))
+        number = max(1, min(100, int(item.params.get("number", 2))))
+    except (TypeError, ValueError):
+        sides = 6
+        number = 2
+    rolls = [random.randint(1, sides) for _ in range(number)]
+    total = sum(rolls)
+    rolls_text = ", ".join(str(value) for value in rolls)
+    return ItemUseResult(
+        self_message=f"You rolled {item.title}: {rolls_text} (total {total}).",
+        others_message=f"{nickname} rolled {item.title}: {rolls_text} (total {total}).",
+    )
+
+
+def _use_wheel(item: WorldItem, nickname: str, _clock_formatter: Callable[[dict], str]) -> ItemUseResult:
+    """Compute `wheel` use result and delayed result text."""
+
+    spaces_raw = item.params.get("spaces", "")
+    if isinstance(spaces_raw, str):
+        spaces = [token.strip() for token in spaces_raw.split(",") if token.strip()]
+    elif isinstance(spaces_raw, list):
+        spaces = [str(token).strip() for token in spaces_raw if str(token).strip()]
+    else:
+        spaces = []
+    if not spaces:
+        raise ValueError("wheel spaces must contain at least one comma-delimited value.")
+    landed = str(random.choice(spaces))
+    return ItemUseResult(
+        self_message=f"You spin {item.title}.",
+        others_message=f"{nickname} spins {item.title}.",
+        delayed_self_message=landed,
+        delayed_others_message=landed,
+    )
+
+
+def _use_clock(item: WorldItem, nickname: str, clock_formatter: Callable[[dict], str]) -> ItemUseResult:
+    """Compute `clock` use result."""
+
+    display_time = clock_formatter(item.params)
+    return ItemUseResult(
+        self_message=f"{item.title} says {display_time}.",
+        others_message=f"{nickname} checks {item.title}. {item.title} says {display_time}.",
+    )
+
+
+@dataclass(frozen=True)
+class ItemTypeHandler:
+    """Validation and use handlers for one item type."""
+
+    validate_update: Callable[[WorldItem, dict], dict]
+    use: Callable[[WorldItem, str, Callable[[dict], str]], ItemUseResult]
+
+
+ITEM_TYPE_HANDLERS: dict[ItemType, ItemTypeHandler] = {
+    "radio_station": ItemTypeHandler(validate_update=_validate_radio_update, use=_use_radio),
+    "dice": ItemTypeHandler(validate_update=_validate_dice_update, use=_use_dice),
+    "wheel": ItemTypeHandler(validate_update=_validate_wheel_update, use=_use_wheel),
+    "clock": ItemTypeHandler(validate_update=_validate_clock_update, use=_use_clock),
+}
+
+
+def get_item_type_handler(item_type: ItemType) -> ItemTypeHandler:
+    """Resolve item-type handler from registry."""
+
+    return ITEM_TYPE_HANDLERS[item_type]

server/app/server.py

@@ -7,7 +7,6 @@ import asyncio
 from datetime import datetime
 import json
 import logging
-import random
 import ssl
 import uuid
 from pathlib import Path
@@ -20,6 +19,7 @@ from websockets.asyncio.server import ServerConnection, serve
 from .client import ClientConnection
 from .config import load_config
 from .item_catalog import CLOCK_DEFAULT_TIME_ZONE, CLOCK_TIME_ZONE_OPTIONS, get_item_use_cooldown_ms
+from .item_type_handlers import get_item_type_handler
 from .item_service import ItemService
 from .models import (
     BroadcastChatMessagePacket,
@@ -52,8 +52,6 @@ from .models import (
 LOGGER = logging.getLogger("chgrid.server")
 PACKET_LOGGER = logging.getLogger("chgrid.server.packet")
 CLIENT_PACKET_ADAPTER = TypeAdapter(ClientPacket)
-RADIO_EFFECT_IDS = {"reverb", "echo", "flanger", "high_pass", "low_pass", "off"}
-RADIO_CHANNEL_IDS = {"stereo", "mono", "left", "right"}
 
 
 class SignalingServer:
@@ -520,9 +518,7 @@ class SignalingServer:
             if item.carrierId is None and (item.x != client.x or item.y != client.y):
                 await self._send_item_result(client, False, "use", "Item is not on your square.", item.id)
                 return
-            if item.type not in {"radio_station", "dice", "wheel", "clock"}:
+            handler = get_item_type_handler(item.type)
-                await self._send_item_result(client, False, "use", "This item cannot be used yet.", item.id)
-                return
             now_ms = self.item_service.now_ms()
             cooldown_ms = get_item_use_cooldown_ms(item.type)
             last_use_ms = self.item_last_use_ms.get(item.id)
@@ -537,68 +533,21 @@ class SignalingServer:
                     item.id,
                 )
                 return
-            delayed_wheel_self_result: str | None = None
+            try:
-            delayed_wheel_others_result: str | None = None
+                use_result = handler.use(item, client.nickname, self._format_clock_display_time)
-            if item.type == "radio_station":
+            except ValueError as exc:
-                enabled_value = item.params.get("enabled", True)
+                await self._send_item_result(client, False, "use", str(exc), item.id)
-                if isinstance(enabled_value, bool):
+                return
-                    currently_enabled = enabled_value
+
-                elif isinstance(enabled_value, (int, float)):
+            if use_result.updated_params is not None:
-                    currently_enabled = bool(enabled_value)
+                item.params = use_result.updated_params
-                elif isinstance(enabled_value, str):
-                    currently_enabled = enabled_value.strip().lower() in {"on", "true", "1", "yes"}
-                else:
-                    currently_enabled = True
-                next_enabled = not currently_enabled
-                item.params = {**item.params, "enabled": next_enabled}
                 item.updatedAt = now_ms
                 self.item_service.save_state()
                 await self._broadcast_item(item)
-                state_text = "on" if next_enabled else "off"
+
-                others_message = f"{client.nickname} turns {state_text} {item.title}."
-                self_message = f"You turn {state_text} {item.title}."
-            elif item.type == "dice":
-                try:
-                    sides = max(1, min(100, int(item.params.get("sides", 6))))
-                    number = max(1, min(100, int(item.params.get("number", 2))))
-                except (TypeError, ValueError):
-                    sides = 6
-                    number = 2
-                rolls = [random.randint(1, sides) for _ in range(number)]
-                total = sum(rolls)
-                others_message = (
-                    f"{client.nickname} rolled {item.title}: {', '.join(str(value) for value in rolls)} (total {total})."
-                )
-                self_message = f"You rolled {item.title}: {', '.join(str(value) for value in rolls)} (total {total})."
-            elif item.type == "wheel":
-                spaces_raw = item.params.get("spaces", "")
-                if isinstance(spaces_raw, str):
-                    spaces = [token.strip() for token in spaces_raw.split(",") if token.strip()]
-                elif isinstance(spaces_raw, list):
-                    spaces = [str(token).strip() for token in spaces_raw if str(token).strip()]
-                else:
-                    spaces = []
-                if not spaces:
-                    await self._send_item_result(
-                        client,
-                        False,
-                        "use",
-                        "wheel spaces must contain at least one comma-delimited value.",
-                        item.id,
-                    )
-                    return
-                landed = random.choice(spaces)
-                others_message = f"{client.nickname} spins {item.title}."
-                self_message = f"You spin {item.title}."
-                delayed_wheel_self_result = str(landed)
-                delayed_wheel_others_result = str(landed)
-            else:
-                display_time = self._format_clock_display_time(item.params)
-                others_message = f"{client.nickname} checks {item.title}. {item.title} says {display_time}."
-                self_message = f"{item.title} says {display_time}."
             self.item_last_use_ms[item.id] = now_ms
             await self._broadcast(
-                BroadcastChatMessagePacket(type="chat_message", message=others_message, system=True),
+                BroadcastChatMessagePacket(type="chat_message", message=use_result.others_message, system=True),
                 exclude=client.websocket,
             )
             if item.useSound:
@@ -611,13 +560,13 @@ class SignalingServer:
                         y=item.y,
                     )
                 )
-            await self._send_item_result(client, True, "use", self_message, item.id)
+            await self._send_item_result(client, True, "use", use_result.self_message, item.id)
-            if delayed_wheel_self_result is not None and delayed_wheel_others_result is not None:
+            if use_result.delayed_self_message is not None and use_result.delayed_others_message is not None:
                 asyncio.create_task(
                     self._broadcast_wheel_result_after_delay(
                         client=client,
-                        self_message=delayed_wheel_self_result,
+                        self_message=use_result.delayed_self_message,
-                        others_message=delayed_wheel_others_result,
+                        others_message=use_result.delayed_others_message,
                     )
                 )
             return
@@ -641,145 +590,12 @@ class SignalingServer:
                 item.title = title[:80]
             if packet.params:
                 next_params = {**item.params, **packet.params}
-                if item.type == "dice":
+                handler = get_item_type_handler(item.type)
-                    try:
+                try:
-                        sides = int(next_params.get("sides", 6))
+                    next_params = handler.validate_update(item, next_params)
-                        number = int(next_params.get("number", 2))
+                except ValueError as exc:
-                    except (TypeError, ValueError):
+                    await self._send_item_result(client, False, "update", str(exc), item.id)
-                        await self._send_item_result(client, False, "update", "Dice values must be numbers.", item.id)
+                    return
-                        return
-                    if not (1 <= sides <= 100 and 1 <= number <= 100):
-                        await self._send_item_result(
-                            client, False, "update", "Dice sides and number must be between 1 and 100.", item.id
-                        )
-                        return
-                    next_params["sides"] = sides
-                    next_params["number"] = number
-                if item.type == "wheel":
-                    spaces_raw = next_params.get("spaces", "")
-                    if not isinstance(spaces_raw, str):
-                        await self._send_item_result(
-                            client, False, "update", "spaces must be a comma-delimited string.", item.id
-                        )
-                        return
-                    spaces = [token.strip() for token in spaces_raw.split(",") if token.strip()]
-                    if not spaces:
-                        await self._send_item_result(
-                            client,
-                            False,
-                            "update",
-                            "spaces must include at least one value, separated by commas.",
-                            item.id,
-                        )
-                        return
-                    if len(spaces) > 100:
-                        await self._send_item_result(client, False, "update", "spaces supports up to 100 values.", item.id)
-                        return
-                    if any(len(token) > 80 for token in spaces):
-                        await self._send_item_result(client, False, "update", "each space must be 80 chars or less.", item.id)
-                        return
-                    next_params["spaces"] = ", ".join(spaces)
-                if item.type == "radio_station":
-                    stream_url = str(next_params.get("streamUrl", "")).strip()
-                    previous_stream_url = str(item.params.get("streamUrl", "")).strip()
-                    next_params["streamUrl"] = stream_url
-                    enabled_value = next_params.get("enabled", True)
-                    if isinstance(enabled_value, bool):
-                        enabled = enabled_value
-                    elif isinstance(enabled_value, (int, float)):
-                        enabled = bool(enabled_value)
-                    elif isinstance(enabled_value, str):
-                        token = enabled_value.strip().lower()
-                        if token in {"on", "true", "1", "yes"}:
-                            enabled = True
-                        elif token in {"off", "false", "0", "no"}:
-                            enabled = False
-                        else:
-                            await self._send_item_result(
-                                client, False, "update", "enabled must be true/false or on/off.", item.id
-                            )
-                            return
-                    else:
-                        await self._send_item_result(
-                            client, False, "update", "enabled must be true/false or on/off.", item.id
-                        )
-                        return
-                    if stream_url and stream_url != previous_stream_url:
-                        enabled = True
-                    if not stream_url:
-                        enabled = False
-                    next_params["enabled"] = enabled
-
-                    try:
-                        volume = int(next_params.get("volume", 50))
-                    except (TypeError, ValueError):
-                        await self._send_item_result(client, False, "update", "volume must be a number.", item.id)
-                        return
-                    if not (0 <= volume <= 100):
-                        await self._send_item_result(
-                            client, False, "update", "volume must be between 0 and 100.", item.id
-                        )
-                        return
-                    next_params["volume"] = volume
-
-                    effect = str(next_params.get("effect", "off")).strip().lower()
-                    if effect not in RADIO_EFFECT_IDS:
-                        await self._send_item_result(
-                            client,
-                            False,
-                            "update",
-                            "effect must be one of reverb, echo, flanger, high_pass, low_pass, off.",
-                            item.id,
-                        )
-                        return
-                    next_params["effect"] = effect
-
-                    channel = str(next_params.get("channel", "stereo")).strip().lower()
-                    if channel not in RADIO_CHANNEL_IDS:
-                        await self._send_item_result(
-                            client,
-                            False,
-                            "update",
-                            "channel must be one of stereo, mono, left, right.",
-                            item.id,
-                        )
-                        return
-                    next_params["channel"] = channel
-
-                    try:
-                        effect_value = float(next_params.get("effectValue", 50))
-                    except (TypeError, ValueError):
-                        await self._send_item_result(client, False, "update", "effectValue must be a number.", item.id)
-                        return
-                    if not (0 <= effect_value <= 100):
-                        await self._send_item_result(
-                            client, False, "update", "effectValue must be between 0 and 100.", item.id
-                        )
-                        return
-                    next_params["effectValue"] = round(effect_value, 1)
-                if item.type == "clock":
-                    time_zone = str(next_params.get("timeZone", CLOCK_DEFAULT_TIME_ZONE)).strip()
-                    if time_zone not in CLOCK_TIME_ZONE_OPTIONS:
-                        await self._send_item_result(
-                            client,
-                            False,
-                            "update",
-                            f"timeZone must be one of {', '.join(CLOCK_TIME_ZONE_OPTIONS)}.",
-                            item.id,
-                        )
-                        return
-                    use_24_hour = self._parse_clock_use_24_hour(next_params.get("use24Hour"))
-                    if use_24_hour is None:
-                        await self._send_item_result(
-                            client,
-                            False,
-                            "update",
-                            "use24Hour must be on/off.",
-                            item.id,
-                        )
-                        return
-                    next_params["timeZone"] = time_zone
-                    next_params["use24Hour"] = use_24_hour
                 item.params = next_params
             item.updatedAt = self.item_service.now_ms()
             item.version += 1