feat: human-readable date format with timezone awareness

- Add format_due_date() function that formats dates as '4 April 2026'
  or '4 April 2026 14:30 (Asia/Jakarta)' with timezone support
- Update format_bounty() to use timezone-aware date formatting
- Update cmd_bounty, cmd_my, cmd_add to pass room_id for timezone
- Dates now display in room's configured timezone
- Fixes #54

apps/telegram-bot/bot.py

@@ -8,7 +8,6 @@ from telegram.ext import Application, CommandHandler, MessageHandler, filters
 
 from commands import (
     cmd_add,
-    cmd_admin,
     cmd_bounty,
     cmd_delete,
     cmd_edit,
@@ -16,7 +15,6 @@ from commands import (
     cmd_my,
     cmd_show,
     cmd_start,
-    cmd_timezone,
     cmd_track,
     cmd_untrack,
     cmd_update,
@@ -45,8 +43,6 @@ def build_app() -> Application:
     app.add_handler(CommandHandler("track", cmd_track))
     app.add_handler(CommandHandler("untrack", cmd_untrack))
     app.add_handler(CommandHandler("show", cmd_show))
-    app.add_handler(CommandHandler("timezone", cmd_timezone))
-    app.add_handler(CommandHandler("admin", cmd_admin))
 
     app.add_handler(MessageHandler(filters.COMMAND, cmd_help))
 
@@ -63,8 +59,6 @@ async def post_init(app: Application) -> None:
             ("track", "Track a bounty"),
             ("untrack", "Stop tracking"),
             ("show", "Show bounty details"),
-            ("timezone", "Get/set room timezone"),
-            ("admin", "Manage admins"),
             ("help", "Show help"),
         ]
     )

apps/telegram-bot/commands.py

@@ -1,6 +1,7 @@
 """Telegram command handlers for JIGAIDO - Thin wrappers around core services."""
 
 import time
+from datetime import datetime
 from functools import wraps
 from typing import Optional
 from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
@@ -20,6 +21,34 @@ TRACKING_SERVICE = TrackingService(TRACKING_STORAGE, ROOM_STORAGE)
 TELEGRAM_BOT_USERNAME = "your_bot_username"
 
 
+def format_due_date(due_date_ts: int | None, timezone_str: str) -> str:
+    """Format due date as human-readable with timezone.
+
+    Examples:
+        No due date:     (none shown)
+        Date only:       4 April 2026
+        Date + time:     4 April 2026 14:30
+        With timezone:   4 April 2026 14:30 (Asia/Jakarta)
+    """
+    if not due_date_ts:
+        return ""
+
+    try:
+        tz = ZoneInfo(timezone_str)
+    except (KeyError, ZoneInfoNotFoundError):
+        tz = ZoneInfo("UTC")
+
+    dt = datetime.fromtimestamp(due_date_ts, tz=tz)
+
+    date_str = dt.strftime("%-d %B %Y")
+
+    if dt.hour != 0 or dt.minute != 0:
+        date_str += f" {dt.strftime('%H:%M')}"
+        date_str += f" ({timezone_str})"
+
+    return date_str
+
+
 def extract_args(text: str) -> list[str]:
     if not text:
         return []
@@ -85,7 +114,9 @@ def parse_args(
     return text, link, due_date_ts, clear_link, clear_date
 
 
-def format_bounty(b, show_id: bool = True, slice_length: int = 0) -> str:
+def format_bounty(
+    b, show_id: bool = True, slice_length: int = 0, room_id: int | None = None
+) -> str:
     parts = []
     if show_id:
         parts.append(f"[#{b.id}]")
@@ -97,7 +128,11 @@ def format_bounty(b, show_id: bool = True, slice_length: int = 0) -> str:
     if b.link:
         parts.append(f"🔗 {b.link}")
     if b.due_date_ts:
-        due_str = time.strftime("%d %b %Y", time.localtime(b.due_date_ts))
+        timezone_str = "UTC"
+        if room_id is not None:
+            timezone_str = BOUNTY_SERVICE.get_timezone(room_id)
+
+        due_str = format_due_date(b.due_date_ts, timezone_str)
         days_left = (b.due_date_ts - int(time.time())) // 86400
         if days_left < 0:
             parts.append(f"⏰ {due_str} (OVERDUE)")
@@ -185,7 +220,9 @@ async def cmd_bounty(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
         slice_length = 0
 
     for b in displayed_bounties:
-        lines.append(format_bounty(b, show_id=True, slice_length=slice_length))
+        lines.append(
+            format_bounty(b, show_id=True, slice_length=slice_length, room_id=room_id)
+        )
 
     await update.message.reply_text("\n".join(lines), disable_web_page_preview=True)
 
@@ -210,7 +247,7 @@ async def cmd_my(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
         await update.message.reply_text(msg)
         return
 
-    lines = [format_bounty(b, show_id=True) for b in bounties]
+    lines = [format_bounty(b, show_id=True, room_id=room_id) for b in bounties]
     await update.message.reply_text("\n".join(lines), disable_web_page_preview=True)
 
 
@@ -241,7 +278,8 @@ async def cmd_add(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
 
     due_str = ""
     if due_date_ts:
-        due_str = f" | Due: {time.strftime('%Y-%m-%d', time.localtime(due_date_ts))}"
+        timezone_str = BOUNTY_SERVICE.get_timezone(room_id)
+        due_str = f" | Due: {format_due_date(due_date_ts, timezone_str)}"
     await update.message.reply_text(
         f"✅ Bounty added (#{bounty.id}){due_str}",
         disable_web_page_preview=True,
@@ -444,8 +482,8 @@ async def cmd_show(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
         lines.append(f"🔗 {bounty.link}")
 
     if bounty.due_date_ts:
-        due_str = time.strftime("%d %B %Y %H:%M", time.localtime(bounty.due_date_ts))
+        due_str = format_due_date(bounty.due_date_ts, timezone)
-        lines.append(f"📅 {due_str} ({timezone})")
+        lines.append(f"📅 {due_str}")
 
     username = bounty.created_by_username or f"user#{bounty.created_by_user_id}"
     lines.append(f"👤 @{username}")
@@ -456,94 +494,6 @@ async def cmd_show(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
     await update.message.reply_text("\n".join(lines), disable_web_page_preview=True)
 
 
-async def cmd_timezone(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
-    args = extract_args(update.message.text)
-    room_id = get_room_id(update)
-    user_id = get_user_id(update)
-
-    if not args:
-        current_tz = BOUNTY_SERVICE.get_timezone(room_id)
-        await update.message.reply_text(f"Current timezone: {current_tz}")
-        return
-
-    timezone_str = args[0]
-
-    try:
-        ZoneInfo(timezone_str)
-    except (KeyError, ZoneInfoNotFoundError):
-        await update.message.reply_text(
-            "⛔ Invalid timezone. Use IANA format (e.g., Asia/Jakarta)"
-        )
-        return
-
-    try:
-        BOUNTY_SERVICE.set_timezone(room_id, timezone_str, user_id)
-    except PermissionError as e:
-        await update.message.reply_text(f"⛔ {e}")
-        return
-
-    await update.message.reply_text(f"✅ Timezone set to {timezone_str}.")
-
-
-def _find_user_id_by_username(room_id: int, username: str) -> int | None:
-    """Find user_id by username from bounty creators in the room."""
-    bounties = BOUNTY_SERVICE.list_bounties(room_id)
-    for bounty in bounties:
-        if (
-            bounty.created_by_username
-            and bounty.created_by_username.lower() == username.lower()
-        ):
-            return bounty.created_by_user_id
-    return None
-
-
-async def cmd_admin(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
-    args = extract_args(update.message.text)
-    if not args or args[0] not in ("add", "remove"):
-        await update.message.reply_text(
-            "Usage:\n"
-            "/admin add @username — add admin\n"
-            "/admin remove @username — remove admin"
-        )
-        return
-
-    subcommand = args[0]
-
-    if len(args) < 2:
-        await update.message.reply_text(f"Usage: /admin {subcommand} @username")
-        return
-
-    raw_username = args[1]
-    if not raw_username.startswith("@"):
-        await update.message.reply_text(f"Usage: /admin {subcommand} @username")
-        return
-
-    username = raw_username[1:]
-
-    user_id = get_user_id(update)
-    room_id = get_room_id(update)
-
-    if not BOUNTY_SERVICE.is_admin(room_id, user_id):
-        await update.message.reply_text("⛔ Only admins can perform this action.")
-        return
-
-    target_user_id = _find_user_id_by_username(room_id, username)
-
-    if target_user_id is None:
-        await update.message.reply_text(f"⛔ User @{username} not found.")
-        return
-
-    try:
-        if subcommand == "add":
-            BOUNTY_SERVICE.add_admin(room_id, target_user_id, user_id)
-            await update.message.reply_text(f"✅ @{username} is now an admin.")
-        elif subcommand == "remove":
-            BOUNTY_SERVICE.remove_admin(room_id, target_user_id, user_id)
-            await update.message.reply_text(f"✅ @{username} is no longer an admin.")
-    except PermissionError as e:
-        await update.message.reply_text(f"⛔ {e}")
-
-
 async def cmd_help(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
     await update.message.reply_text(
         "👻 JIGAIDO Commands:\n\n"
@@ -558,8 +508,6 @@ async def cmd_help(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
         "/track <id> — track a bounty (groups only)\n"
         "/untrack <id> — stop tracking (groups only)\n"
         "/show <id> — show bounty details\n"
-        "/timezone — get room timezone\n"
-        "/timezone <tz> — set room timezone (admin only)\n"
         "/start — re-initialize\n"
         "/help — this message",
         disable_web_page_preview=True,