from __future__ import annotations

import pytest

from yuxi.channels.adapters.nostr.thread_simulator import NostrThreadSimulator


class TestNostrThreadSimulator:
    def test_get_parent_event_id_reply_tag(self):
        event = {
            "tags": [
                ["e", "parent_event_id", "", "reply"],
            ]
        }
        assert NostrThreadSimulator._get_parent_event_id(event) == "parent_event_id"

    def test_get_parent_event_id_no_reply(self):
        event = {
            "tags": [
                ["p", "pubkey_hex"],
            ]
        }
        assert NostrThreadSimulator._get_parent_event_id(event) is None

    def test_get_parent_event_id_simple_e_tag(self):
        event = {
            "tags": [
                ["e", "root_event_id"],
            ]
        }
        assert NostrThreadSimulator._get_parent_event_id(event) == "root_event_id"

    def test_resolve_e_tags(self):
        event = {
            "tags": [
                ["e", "e1"],
                ["p", "pub1"],
                ["e", "e2"],
            ]
        }
        assert NostrThreadSimulator.resolve_e_tags(event) == ["e1", "e2"]

    def test_resolve_p_tags(self):
        event = {
            "tags": [
                ["p", "pub1"],
                ["p", "pub2"],
                ["e", "e1"],
            ]
        }
        assert NostrThreadSimulator.resolve_p_tags(event) == ["pub1", "pub2"]

    def test_is_root_event(self):
        event = {
            "tags": [
                ["p", "pub1"],
            ]
        }
        assert NostrThreadSimulator._is_root_event(None, event) is True

    def test_is_not_root_event(self):
        event = {
            "tags": [
                ["e", "parent_id", "", "root"],
            ]
        }
        assert NostrThreadSimulator._is_root_event(None, event) is False

    def test_event_cache(self):
        sim = NostrThreadSimulator()
        event = {"id": "e1", "content": "test"}
        sim._event_cache["e1"] = event
        assert sim._event_cache["e1"] == event

    def test_max_depth_configured(self):
        sim = NostrThreadSimulator(max_depth=5)
        assert sim._max_depth == 5

    def test_default_max_depth(self):
        sim = NostrThreadSimulator()
        assert sim._max_depth == 10


class TestNostrSession:
    def test_resolve_thread_key_dm(self):
        from yuxi.channels.adapters.nostr.session import resolve_thread_key
        from yuxi.channels.models import (
            ChannelIdentity,
            ChannelMessage,
            ChannelType,
        )

        msg = ChannelMessage(
            identity=ChannelIdentity(
                channel_id="nostr",
                channel_type=ChannelType.NOSTR,
                channel_user_id="pubkey_a",
                channel_chat_id="dm:pubkey_b",
            ),
            content="hello",
        )
        key = resolve_thread_key(msg)
        assert key == "nostr:dm:pubkey_b"

    def test_resolve_thread_key_channel(self):
        from yuxi.channels.adapters.nostr.session import resolve_thread_key
        from yuxi.channels.models import (
            ChannelIdentity,
            ChannelMessage,
            ChannelType,
        )

        msg = ChannelMessage(
            identity=ChannelIdentity(
                channel_id="nostr",
                channel_type=ChannelType.NOSTR,
                channel_user_id="pubkey_a",
                channel_chat_id="channel:event_id_123",
            ),
            content="hello",
        )
        key = resolve_thread_key(msg)
        assert key == "nostr:channel:event_id_123"

    def test_resolve_agent_route(self):
        from yuxi.channels.adapters.nostr.session import resolve_agent_route
        from yuxi.channels.models import (
            ChannelIdentity,
            ChannelMessage,
            ChannelType,
        )

        msg = ChannelMessage(
            identity=ChannelIdentity(
                channel_id="nostr",
                channel_type=ChannelType.NOSTR,
                channel_user_id="pubkey_a",
                channel_chat_id="dm:pubkey_b",
            ),
            content="hello",
        )
        route = resolve_agent_route(msg, default_agent_id="agent_1")
        assert route.startswith("agent:agent_1:")
        assert "nostr:dm:pubkey_b" in route

    def test_normalize_target(self):
        from yuxi.channels.adapters.nostr.session import normalize_target

        assert normalize_target("dm:pubkey_b") == "nostr:dm:pubkey_b"
        assert normalize_target("nostr:dm:pubkey_b") == "nostr:dm:pubkey_b"