from __future__ import annotations

from unittest.mock import AsyncMock, MagicMock

import discord
import pytest

from tickets import storage
from tickets.cog import ConfigToggleButton
from tickets.data import GuildTicketConfig, TicketCategory, TicketData, TicketStatus
from tickets.ui import (
    AddMemberButton,
    ClaimButton,
    CloseButton,
    LockButton,
    PanelCreateButton,
    TransferButton,
    _is_staff,
    _now_iso,
    _send_log,
)

STAFF_ROLE_ID = 999999


@pytest.fixture(autouse=True)
def clean_storage():
    storage._config_cache.clear()
    storage._tickets_cache.clear()
    config = GuildTicketConfig(guild_id=999)
    config.staff_role_id = STAFF_ROLE_ID
    storage._config_cache[999] = config
    yield
    storage._config_cache.clear()
    storage._tickets_cache.clear()


def _make_member(is_admin=False, has_staff_role=True):
    member = MagicMock(spec=discord.Member)
    member.guild_permissions.administrator = is_admin
    if has_staff_role:
        member.roles = [MagicMock(id=STAFF_ROLE_ID)]
    else:
        member.roles = []
    return member


def _mock_interaction(guild_id=999, user_id=1, channel_id=123, member=None):
    if member is None:
        member = _make_member()
    interaction = MagicMock(spec=discord.Interaction)
    interaction.guild_id = guild_id
    interaction.channel_id = channel_id
    interaction.channel = MagicMock()
    interaction.channel.id = channel_id
    interaction.user = MagicMock()
    interaction.user.id = user_id
    interaction.user.mention = f"<@{user_id}>"
    interaction.response = AsyncMock()
    interaction.followup = AsyncMock()
    interaction.guild = MagicMock(spec=discord.Guild)
    interaction.guild.id = guild_id
    interaction.guild.get_member.return_value = member
    interaction.channel.overwrites_for = MagicMock()
    interaction.channel.set_permissions = AsyncMock()
    interaction.channel.delete = AsyncMock()
    interaction.channel.send = AsyncMock()
    return interaction


def _save_ticket(channel_id=123, **kwargs):
    defaults = dict(channel_id=channel_id, guild_id=999, user_id=1, category_id="cat")
    defaults.update(kwargs)
    ticket = TicketData(**defaults)
    storage.save_ticket(ticket)
    return ticket


class TestIsStaff:
    def test_admin(self):
        member = _make_member(is_admin=True)
        config = storage.get_config(999)
        assert _is_staff(member, config) is True

    def test_staff_role_match(self):
        member = _make_member(has_staff_role=True)
        config = storage.get_config(999)
        assert _is_staff(member, config) is True

    def test_not_staff(self):
        member = _make_member(has_staff_role=False)
        config = storage.get_config(999)
        assert _is_staff(member, config) is False

    def test_category_staff_role(self):
        member = _make_member(has_staff_role=False)
        member.roles = [MagicMock(id=77777)]
        config = storage.get_config(999)
        config.categories = [TicketCategory(id="c", name="C", staff_role_id=77777)]
        assert _is_staff(member, config) is True


class TestNowIso:
    def test_returns_iso_string(self):
        result = _now_iso()
        assert "T" in result


class TestSendLog:
    @pytest.mark.asyncio
    async def test_no_log_channel(self):
        config = storage.get_config(999)
        guild = MagicMock()
        guild.get_channel.return_value = None
        await _send_log(guild, config, MagicMock())
        guild.get_channel.assert_not_called()

    @pytest.mark.asyncio
    async def test_sends_to_log_channel(self):
        config = storage.get_config(999)
        config.log_channel_id = 555
        channel = AsyncMock()
        guild = MagicMock()
        guild.get_channel.return_value = channel
        embed = MagicMock()
        await _send_log(guild, config, embed)
        channel.send.assert_called_once_with(embed=embed)


class TestPanelCreateButton:
    @pytest.mark.asyncio
    async def test_disabled_system(self):
        config = storage.get_config(999)
        config.enabled = False
        interaction = _mock_interaction()
        await PanelCreateButton().callback(interaction)
        interaction.response.send_message.assert_called_once()

    @pytest.mark.asyncio
    async def test_no_categories(self):
        config = storage.get_config(999)
        config.enabled = True
        config.categories = []
        interaction = _mock_interaction()
        await PanelCreateButton().callback(interaction)
        interaction.response.send_message.assert_called_once()

    @pytest.mark.asyncio
    async def test_single_category_opens_modal(self):
        config = storage.get_config(999)
        config.enabled = True
        config.categories = [TicketCategory(id="c1", name="Cat1")]
        interaction = _mock_interaction()
        await PanelCreateButton().callback(interaction)
        interaction.response.send_modal.assert_called_once()

    @pytest.mark.asyncio
    async def test_multiple_categories_sends_select(self):
        config = storage.get_config(999)
        config.enabled = True
        config.categories = [
            TicketCategory(id="c1", name="Cat1"),
            TicketCategory(id="c2", name="Cat2"),
        ]
        interaction = _mock_interaction()
        await PanelCreateButton().callback(interaction)
        call_kwargs = interaction.response.send_message.call_args.kwargs
        assert "view" in call_kwargs


class TestClaimButton:
    @pytest.mark.asyncio
    async def test_not_a_ticket(self):
        interaction = _mock_interaction()
        await ClaimButton().callback(interaction)
        assert "pas un ticket" in interaction.response.send_message.call_args[0][0]

    @pytest.mark.asyncio
    async def test_not_staff(self):
        _save_ticket()
        member = _make_member(is_admin=False, has_staff_role=False)
        interaction = _mock_interaction(member=member)
        await ClaimButton().callback(interaction)
        assert "staff" in interaction.response.send_message.call_args[0][0].lower()

    @pytest.mark.asyncio
    async def test_claim_success(self):
        _save_ticket()
        interaction = _mock_interaction()
        await ClaimButton().callback(interaction)
        assert storage.get_ticket(123).claimed_by == 1

    @pytest.mark.asyncio
    async def test_unclaim_own(self):
        _save_ticket(claimed_by=1)
        interaction = _mock_interaction()
        await ClaimButton().callback(interaction)
        assert storage.get_ticket(123).claimed_by is None

    @pytest.mark.asyncio
    async def test_already_claimed_by_other(self):
        _save_ticket(claimed_by=42)
        interaction = _mock_interaction()
        await ClaimButton().callback(interaction)
        assert storage.get_ticket(123).claimed_by == 42


class TestLockButton:
    @pytest.mark.asyncio
    async def test_not_a_ticket(self):
        interaction = _mock_interaction(channel_id=99999)
        await LockButton().callback(interaction)
        assert "pas un ticket" in interaction.response.send_message.call_args[0][0]

    @pytest.mark.asyncio
    async def test_lock_toggle(self):
        _save_ticket(locked=False)
        interaction = _mock_interaction()
        interaction.channel.overwrites_for.return_value = MagicMock()
        await LockButton().callback(interaction)
        assert storage.get_ticket(123).locked is True
        interaction.channel.set_permissions.assert_called_once()

    @pytest.mark.asyncio
    async def test_unlock_toggle(self):
        _save_ticket(locked=True)
        interaction = _mock_interaction()
        interaction.channel.overwrites_for.return_value = MagicMock()
        await LockButton().callback(interaction)
        assert storage.get_ticket(123).locked is False


class TestCloseButton:
    @pytest.mark.asyncio
    async def test_not_a_ticket(self):
        interaction = _mock_interaction(channel_id=99999)
        await CloseButton().callback(interaction)
        assert "pas un ticket" in interaction.response.send_message.call_args[0][0]

    @pytest.mark.asyncio
    async def test_not_staff(self):
        _save_ticket()
        member = _make_member(is_admin=False, has_staff_role=False)
        interaction = _mock_interaction(member=member)
        await CloseButton().callback(interaction)
        assert "staff" in interaction.response.send_message.call_args[0][0].lower()

    @pytest.mark.asyncio
    async def test_close_success(self):
        _save_ticket()
        interaction = _mock_interaction()
        await CloseButton().callback(interaction)
        loaded = storage.get_ticket(123)
        assert loaded.status == TicketStatus.CLOSED
        assert loaded.closed_by == 1

    @pytest.mark.asyncio
    async def test_close_without_transcript(self):
        config = storage.get_config(999)
        config.transcript_enabled = False
        _save_ticket()
        interaction = _mock_interaction()
        await CloseButton().callback(interaction)
        assert storage.get_ticket(123).status == TicketStatus.CLOSED


class TestTransferButton:
    @pytest.mark.asyncio
    async def test_not_a_ticket(self):
        interaction = _mock_interaction(channel_id=99999)
        await TransferButton().callback(interaction)
        assert "pas un ticket" in interaction.response.send_message.call_args[0][0]

    @pytest.mark.asyncio
    async def test_sends_user_select(self):
        _save_ticket()
        interaction = _mock_interaction()
        await TransferButton().callback(interaction)
        assert "view" in interaction.response.send_message.call_args.kwargs


class TestAddMemberButton:
    @pytest.mark.asyncio
    async def test_not_a_ticket(self):
        interaction = _mock_interaction(channel_id=99999)
        await AddMemberButton().callback(interaction)
        assert "pas un ticket" in interaction.response.send_message.call_args[0][0]

    @pytest.mark.asyncio
    async def test_sends_user_select(self):
        _save_ticket()
        interaction = _mock_interaction()
        await AddMemberButton().callback(interaction)
        assert "view" in interaction.response.send_message.call_args.kwargs


class TestConfigToggleButton:
    @pytest.mark.asyncio
    async def test_toggle(self):
        config = storage.get_config(999)
        initial = config.enabled
        interaction = _mock_interaction()
        await ConfigToggleButton(enabled=initial).callback(interaction)
        assert config.enabled != initial