from __future__ import annotations

from pathlib import Path

import pytest
from fastapi.testclient import TestClient

from chat.app import app
from chat.db.connection import open_db
from chat.eventlog.log import append_event
from chat.eventlog.projector import project


@pytest.fixture
def client(tmp_path, monkeypatch):
    cfg = tmp_path / "config.toml"
    cfg.write_text('featherless_api_key = "test"\n')
    monkeypatch.setenv("CHAT_CONFIG_PATH", str(cfg))
    db = tmp_path / "test.db"
    monkeypatch.setenv("CHAT_DB_PATH", str(db))
    with TestClient(app) as c:
        yield c


def _seed_chat(db_path: Path, bot_id: str = "bot_a", chat_id: str = "chat_bot_a") -> None:
    """Author a bot, create a chat with default state."""
    with open_db(db_path) as conn:
        append_event(
            conn,
            kind="bot_authored",
            payload={
                "id": bot_id,
                "name": "BotA",
                "persona": "...",
                "voice_samples": [],
                "traits": [],
                "backstory": "",
                "initial_relationship_to_you": "",
                "kickoff_prose": "...",
            },
        )
        append_event(
            conn,
            kind="chat_created",
            payload={
                "id": chat_id,
                "host_bot_id": bot_id,
                "initial_time": "2026-04-26T20:00:00+00:00",
                "narrative_anchor": "Day 1",
                "weather": "",
            },
        )
        project(conn)


def test_get_chat_404_when_missing(client):
    response = client.get("/chats/no_such_chat")
    assert response.status_code == 404


def test_get_chat_renders_shell_with_host_bot_name(client, tmp_path):
    _seed_chat(tmp_path / "test.db")
    response = client.get("/chats/chat_bot_a")
    assert response.status_code == 200
    body = response.text
    assert "BotA" in body
    assert "<form" in body  # turn input form
    assert "drawer" in body.lower()  # drawer present
    assert "no turns yet" in body.lower()  # empty timeline placeholder


def test_get_chat_includes_turn_post_action(client, tmp_path):
    _seed_chat(tmp_path / "test.db")
    response = client.get("/chats/chat_bot_a")
    assert response.status_code == 200
    assert 'action="/chats/chat_bot_a/turns"' in response.text


def test_get_chat_shows_chat_clock_time(client, tmp_path):
    _seed_chat(tmp_path / "test.db")
    response = client.get("/chats/chat_bot_a")
    assert response.status_code == 200
    assert "2026-04-26" in response.text