"""Tests for commands.py — parsing, formatting, and command handlers."""

import time
from unittest.mock import MagicMock, patch, AsyncMock

import pytest

from telegram import Update, Message, User, Chat
from telegram.ext import ContextTypes

from commands import (
    extract_args,
    parse_args,
    format_bounty,
    cmd_bounty,
    cmd_my,
    cmd_add,
    cmd_update,
    cmd_delete,
    cmd_track,
    cmd_untrack,
    cmd_start,
    cmd_help,
    is_group,
    get_group_id,
    get_user_id,
    get_room_id,
    BOUNTY_SERVICE,
    TRACKING_SERVICE,
)


class TestExtractArgs:
    def test_basic_split(self):
        assert extract_args("/add hello world") == ["hello", "world"]
        assert extract_args("/track 42") == ["42"]

    def test_no_args(self):
        assert extract_args("/bounty") == []
        assert extract_args("/add") == []

    def test_preserves_urls(self):
        result = extract_args("/add check https://example.com stuff")
        assert result == ["check", "https://example.com", "stuff"]

    def test_none_input(self):
        assert extract_args(None) == []

    def test_strips_whitespace(self):
        assert extract_args("  /add   hello   world  ") == ["hello", "world"]


class TestParseArgs:
    def test_text_only(self):
        text, link, due = parse_args(["hello", "world"])
        assert text == "hello world"
        assert link is None
        assert due is None

    def test_link_extracted(self):
        text, link, due = parse_args(["hello", "https://example.com"])
        # "hello" is non-link non-date → becomes text; only the URL becomes link
        assert text == "hello"
        assert link == "https://example.com"
        assert due is None

    def test_text_and_link(self):
        text, link, due = parse_args(["hello", "world", "https://example.com"])
        assert text == "hello world"
        assert link == "https://example.com"

    def test_due_date_parsed(self):
        text, link, due = parse_args(["hello", "tomorrow"])
        assert text == "hello"
        assert due is not None
        # Should be some time in the future
        assert due > int(time.time())

    def test_all_three(self):
        text, link, due = parse_args(["hello", "https://example.com", "tomorrow"])
        assert text == "hello"
        assert link == "https://example.com"
        assert due is not None

    def test_http_and_https_both_detected(self):
        _, link1, _ = parse_args(["http://example.com"])
        _, link2, _ = parse_args(["https://example.com"])
        assert link1 == "http://example.com"
        assert link2 == "https://example.com"

    def test_non_url_non_date_becomes_text(self):
        text, link, due = parse_args(["fix", "the", "bug"])
        assert text == "fix the bug"
        assert link is None
        assert due is None

    def test_multiple_links_first_only(self):
        _, link, _ = parse_args(["text", "https://first.com", "https://second.com"])
        assert link == "https://first.com"

    def test_due_date_after_link(self):
        text, link, due = parse_args(["task", "https://example.com", "in 5 days"])
        assert text == "task"
        assert link == "https://example.com"
        assert due is not None

    def test_empty_args(self):
        text, link, due = parse_args([])
        assert text is None
        assert link is None
        assert due is None

    def test_date_parser_failure_returns_none(self):
        # "asdfjkl" is not parseable → goes to text
        text, link, due = parse_args(["hello", "asdfjkl"])
        assert text == "hello asdfjkl"
        assert due is None

    def test_link_takes_first_match(self):
        # Even if it's not a valid URL, starts with https://
        _, link, _ = parse_args(["skip", "https://not-real.but-still-a-link"])
        assert link == "https://not-real.but-still-a-link"


class TestFormatBounty:
    def _row(
        self,
        id=1,
        text="Test bounty",
        link="https://example.com",
        due_date_ts=None,
        created_by_user_id=123456,
    ):
        row = MagicMock()
        row.id = id
        row.text = text
        row.link = link
        row.due_date_ts = due_date_ts
        row.created_by_user_id = created_by_user_id
        return row

    def test_shows_id(self):
        b = self._row(id=42)
        out = format_bounty(b, show_id=True)
        assert "[#42]" in out

    def test_hides_id_when_requested(self):
        b = self._row(id=42)
        out = format_bounty(b, show_id=False)
        assert "[#42]" not in out

    def test_text_included(self):
        b = self._row(text="Fix the login bug")
        out = format_bounty(b)
        assert "Fix the login bug" in out

    def test_link_shown(self):
        b = self._row(link="https://github.com/bob/repo")
        out = format_bounty(b)
        assert "https://github.com/bob/repo" in out
        assert "🔗" in out

    def test_no_link(self):
        b = self._row(link=None)
        out = format_bounty(b)
        assert "🔗" not in out

    def test_due_date_future(self):
        future = int(time.time()) + 3 * 86400
        b = self._row(due_date_ts=future)
        out = format_bounty(b)
        assert "⏰" in out
        assert "3d" in out

    def test_due_date_today(self):
        today = int(time.time()) + 3600  # within today
        b = self._row(due_date_ts=today)
        out = format_bounty(b)
        assert "TODAY" in out

    def test_due_date_overdue(self):
        past = int(time.time()) - 86400  # yesterday
        b = self._row(due_date_ts=past)
        out = format_bounty(b)
        assert "OVERDUE" in out

    def test_created_by_shown(self):
        b = self._row(created_by_user_id=999)
        out = format_bounty(b)
        assert "999" in out


def create_mock_update(
    user_id=123,
    chat_id=-456,
    chat_type="group",
    message_text="/bounty",
):
    """Create a mock Telegram Update with common values."""
    user = MagicMock(spec=User)
    user.id = user_id

    chat = MagicMock(spec=Chat)
    chat.id = chat_id
    chat.type = chat_type

    message = MagicMock(spec=Message)
    message.text = message_text
    message.reply_text = AsyncMock()
    message.user = user

    update = MagicMock(spec=Update)
    update.effective_user = user
    update.effective_chat = chat
    update.message = message

    return update


class TestHelperFunctions:
    """Test helper functions."""

    def test_is_group_true(self):
        update = create_mock_update(chat_type="group")
        assert is_group(update) is True

    def test_is_group_false_for_private(self):
        update = create_mock_update(chat_type="private")
        assert is_group(update) is False

    def test_get_group_id(self):
        update = create_mock_update(chat_id=-789)
        assert get_group_id(update) == -789

    def test_get_user_id(self):
        update = create_mock_update(user_id=999)
        assert get_user_id(update) == 999

    def test_get_room_id_group(self):
        update = create_mock_update(chat_id=-456, chat_type="group", user_id=123)
        assert get_room_id(update) == -456

    def test_get_room_id_private(self):
        update = create_mock_update(chat_id=123, chat_type="private", user_id=123)
        assert get_room_id(update) == 123


class TestCmdBounty:
    """Test cmd_bounty command."""

    @pytest.mark.asyncio
    async def test_lists_bounties(self):
        update = create_mock_update()
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        mock_bounty = MagicMock()
        mock_bounty.id = 1
        mock_bounty.text = "Test"
        mock_bounty.link = None
        mock_bounty.due_date_ts = None
        mock_bounty.created_by_user_id = 123

        with patch.object(
            BOUNTY_SERVICE, "list_bounties", return_value=[mock_bounty]
        ) as mock_list:
            await cmd_bounty(update, ctx)
            mock_list.assert_called_once_with(-456)
            update.message.reply_text.assert_called_once()
            call_args = update.message.reply_text.call_args[0][0]
            assert "[#1]" in call_args
            assert "Test" in call_args

    @pytest.mark.asyncio
    async def test_no_bounties(self):
        update = create_mock_update()
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        with patch.object(BOUNTY_SERVICE, "list_bounties", return_value=[]):
            await cmd_bounty(update, ctx)
            update.message.reply_text.assert_called_once_with("No bounties yet.")


class TestCmdMy:
    """Test cmd_my command."""

    @pytest.mark.asyncio
    async def test_in_group_shows_tracked(self):
        update = create_mock_update(chat_type="group")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        mock_bounty = MagicMock()
        mock_bounty.id = 1
        mock_bounty.text = "Tracked"
        mock_bounty.link = None
        mock_bounty.due_date_ts = None
        mock_bounty.created_by_user_id = 123

        with patch.object(
            TRACKING_SERVICE, "get_tracked_bounties", return_value=[mock_bounty]
        ) as mock_track:
            await cmd_my(update, ctx)
            mock_track.assert_called_once_with(-456, 123)
            update.message.reply_text.assert_called_once()

    @pytest.mark.asyncio
    async def test_in_private_shows_personal(self):
        update = create_mock_update(chat_type="private", chat_id=123)
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        mock_bounty = MagicMock()
        mock_bounty.id = 2
        mock_bounty.text = "Personal"
        mock_bounty.link = None
        mock_bounty.due_date_ts = None
        mock_bounty.created_by_user_id = 123

        with patch.object(
            BOUNTY_SERVICE, "list_bounties", return_value=[mock_bounty]
        ) as mock_list:
            await cmd_my(update, ctx)
            mock_list.assert_called_once_with(123)
            update.message.reply_text.assert_called_once()

    @pytest.mark.asyncio
    async def test_no_bounties_tracked(self):
        update = create_mock_update(chat_type="group")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        with patch.object(TRACKING_SERVICE, "get_tracked_bounties", return_value=[]):
            await cmd_my(update, ctx)
            update.message.reply_text.assert_called_once_with(
                "You are not tracking any bounties."
            )


class TestCmdAdd:
    """Test cmd_add command."""

    @pytest.mark.asyncio
    async def test_add_bounty_success(self):
        update = create_mock_update(message_text="/add Fix the bug")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        mock_bounty = MagicMock()
        mock_bounty.id = 42

        with patch.object(
            BOUNTY_SERVICE, "add_bounty", return_value=mock_bounty
        ) as mock_add:
            await cmd_add(update, ctx)
            mock_add.assert_called_once()
            call_kwargs = mock_add.call_args[1]
            assert call_kwargs["room_id"] == -456
            assert call_kwargs["user_id"] == 123
            assert call_kwargs["text"] == "Fix the bug"
            update.message.reply_text.assert_called_once()
            assert "✅" in update.message.reply_text.call_args[0][0]

    @pytest.mark.asyncio
    async def test_add_without_args(self):
        update = create_mock_update(message_text="/add")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_add(update, ctx)
        update.message.reply_text.assert_called_once()
        assert "Usage" in update.message.reply_text.call_args[0][0]

    @pytest.mark.asyncio
    async def test_add_needs_text_or_link(self):
        update = create_mock_update(message_text="/add")

        _, link, _ = parse_args([])
        if not "test" and not link:
            await update.message.reply_text("A bounty needs at least text or a link.")
            update.message.reply_text.assert_called_once()


class TestCmdUpdate:
    """Test cmd_update command."""

    @pytest.mark.asyncio
    async def test_update_bounty_success(self):
        update = create_mock_update(message_text="/update 1 New text")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        with patch.object(
            BOUNTY_SERVICE, "update_bounty", return_value=True
        ) as mock_update:
            await cmd_update(update, ctx)
            mock_update.assert_called_once()
            call_kwargs = mock_update.call_args[1]
            assert call_kwargs["room_id"] == -456
            assert call_kwargs["bounty_id"] == 1
            assert call_kwargs["text"] == "New text"
            update.message.reply_text.assert_called_once()
            assert "✅" in update.message.reply_text.call_args[0][0]

    @pytest.mark.asyncio
    async def test_update_without_args(self):
        update = create_mock_update(message_text="/update")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_update(update, ctx)
        update.message.reply_text.assert_called_once()
        assert "Usage" in update.message.reply_text.call_args[0][0]

    @pytest.mark.asyncio
    async def test_update_invalid_id(self):
        update = create_mock_update(message_text="/update abc")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_update(update, ctx)
        update.message.reply_text.assert_called_once_with("Invalid bounty ID.")

    @pytest.mark.asyncio
    async def test_update_permission_denied(self):
        update = create_mock_update(message_text="/update 1 new text")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        with patch.object(
            BOUNTY_SERVICE,
            "update_bounty",
            side_effect=PermissionError("Not your bounty"),
        ):
            await cmd_update(update, ctx)
            update.message.reply_text.assert_called_once()
            assert "⛔" in update.message.reply_text.call_args[0][0]


class TestCmdDelete:
    """Test cmd_delete command."""

    @pytest.mark.asyncio
    async def test_delete_bounty_success(self):
        update = create_mock_update(message_text="/delete 1")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        with patch.object(
            BOUNTY_SERVICE, "delete_bounty", return_value=True
        ) as mock_delete:
            await cmd_delete(update, ctx)
            mock_delete.assert_called_once_with(room_id=-456, bounty_id=1, user_id=123)
            update.message.reply_text.assert_called_once()
            assert "✅" in update.message.reply_text.call_args[0][0]

    @pytest.mark.asyncio
    async def test_delete_without_args(self):
        update = create_mock_update(message_text="/delete")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_delete(update, ctx)
        update.message.reply_text.assert_called_once()
        assert "Usage" in update.message.reply_text.call_args[0][0]

    @pytest.mark.asyncio
    async def test_delete_invalid_id(self):
        update = create_mock_update(message_text="/delete abc")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_delete(update, ctx)
        update.message.reply_text.assert_called_once_with("Invalid bounty ID.")


class TestCmdTrack:
    """Test cmd_track command."""

    @pytest.mark.asyncio
    async def test_track_in_group(self):
        update = create_mock_update(chat_type="group", message_text="/track 1")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        with patch.object(
            TRACKING_SERVICE, "track_bounty", return_value=True
        ) as mock_track:
            await cmd_track(update, ctx)
            mock_track.assert_called_once_with(-456, 123, 1)
            update.message.reply_text.assert_called_once()
            assert "✅" in update.message.reply_text.call_args[0][0]

    @pytest.mark.asyncio
    async def test_track_not_in_group(self):
        update = create_mock_update(chat_type="private", message_text="/track 1")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_track(update, ctx)
        update.message.reply_text.assert_called_once()
        assert "⛔" in update.message.reply_text.call_args[0][0]

    @pytest.mark.asyncio
    async def test_track_without_args(self):
        update = create_mock_update(chat_type="group", message_text="/track")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_track(update, ctx)
        update.message.reply_text.assert_called_once()
        assert "Usage" in update.message.reply_text.call_args[0][0]


class TestCmdUntrack:
    """Test cmd_untrack command."""

    @pytest.mark.asyncio
    async def test_untrack_in_group(self):
        update = create_mock_update(chat_type="group", message_text="/untrack 1")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        with patch.object(
            TRACKING_SERVICE, "untrack_bounty", return_value=True
        ) as mock_untrack:
            await cmd_untrack(update, ctx)
            mock_untrack.assert_called_once_with(-456, 123, 1)
            update.message.reply_text.assert_called_once()
            assert "✅" in update.message.reply_text.call_args[0][0]

    @pytest.mark.asyncio
    async def test_untrack_not_in_group(self):
        update = create_mock_update(chat_type="private", message_text="/untrack 1")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_untrack(update, ctx)
        update.message.reply_text.assert_called_once()
        assert "⛔" in update.message.reply_text.call_args[0][0]


class TestCmdStart:
    """Test cmd_start command."""

    @pytest.mark.asyncio
    async def test_start_in_group(self):
        update = create_mock_update(chat_type="group")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_start(update, ctx)
        update.message.reply_text.assert_called_once()
        text = update.message.reply_text.call_args[0][0]
        assert "👻" in text
        assert "/bounty" in text

    @pytest.mark.asyncio
    async def test_start_in_private(self):
        update = create_mock_update(chat_type="private")
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_start(update, ctx)
        update.message.reply_text.assert_called_once()
        text = update.message.reply_text.call_args[0][0]
        assert "👻" in text
        assert "/my" in text


class TestCmdHelp:
    """Test cmd_help command."""

    @pytest.mark.asyncio
    async def test_help_shows_commands(self):
        update = create_mock_update()
        ctx = MagicMock(spec=ContextTypes.DEFAULT_TYPE)

        await cmd_help(update, ctx)
        update.message.reply_text.assert_called_once()
        text = update.message.reply_text.call_args[0][0]
        assert "/bounty" in text
        assert "/add" in text
        assert "/help" in text