import sys
from dataclasses import dataclass, field
from pathlib import Path
from typing import Any, Dict, List, Optional

import pytest

# Robustly locate repository root (directory containing src/jarvis)
_this_file = Path(__file__).resolve()
ROOT = None
for parent in _this_file.parents:
    if (parent / "src" / "jarvis").exists():
        ROOT = parent
        break
if ROOT is None:
    # Fallback to two levels up
    ROOT = _this_file.parent.parent

SRC = ROOT / "src"
# Both ROOT and SRC are on sys.path so tests can write either
#   ``from src.jarvis.x import ...``  (older style, ``src.`` prefix)
# or
#   ``from jarvis.x import ...``      (newer style, no prefix)
# CAUTION: those two import paths resolve to *distinct module instances*.
# A monkeypatch on ``src.jarvis.memory.conversation.X`` does NOT take
# effect on ``jarvis.memory.conversation.X`` and vice versa. When a test
# stubs out a symbol the production code calls, you MUST patch the same
# module instance the production code resolves at runtime. Production code
# in ``src/`` imports without the ``src.`` prefix (e.g. inside endpoint
# handlers it's ``from jarvis.memory.conversation import ...``), so a test
# that monkeypatches a symbol used by production should also import
# without the prefix. This is the convention going forward; the older
# ``from src.X`` style is left in place to avoid a churn-only sweep, but
# do not adopt it for new tests that monkeypatch.
# Add repository root so that 'src' is a package prefix.
if str(ROOT) not in sys.path:
    sys.path.insert(0, str(ROOT))
# Also add the src directory (optional, for backwards compatibility with direct 'jarvis' imports)
if str(SRC) not in sys.path:
    sys.path.insert(0, str(SRC))


@dataclass
class MockConfig:
    """Minimal config object for unit tests that need a config."""
    ollama_base_url: str = "http://localhost:11434"
    ollama_chat_model: str = "gemma4:e2b"
    ollama_embed_model: str = "nomic-embed-text"
    db_path: str = ":memory:"
    sqlite_vss_path: Optional[str] = None
    voice_debug: bool = True
    tts_enabled: bool = False
    tts_engine: str = "piper"
    tts_voice: Optional[str] = None
    tts_rate: int = 200
    tts_piper_model_path: Optional[str] = None
    tts_piper_speaker: Optional[int] = None
    tts_piper_length_scale: float = 1.0
    tts_piper_noise_scale: float = 0.667
    tts_piper_noise_w: float = 0.8
    tts_piper_sentence_silence: float = 0.2
    tts_chatterbox_device: str = "cpu"
    tts_chatterbox_audio_prompt: Optional[str] = None
    tts_chatterbox_exaggeration: float = 0.5
    tts_chatterbox_cfg_weight: float = 0.5
    web_search_enabled: bool = True
    brave_search_api_key: str = ""
    wikipedia_fallback_enabled: bool = True
    llm_tools_timeout_sec: float = 8.0
    llm_embed_timeout_sec: float = 10.0
    llm_chat_timeout_sec: float = 45.0
    agentic_max_turns: int = 8
    tool_selection_strategy: str = "embedding"
    tool_router_model: str = ""
    memory_enrichment_max_results: int = 5
    memory_enrichment_source: str = "diary"
    location_enabled: bool = True
    location_ip_address: Optional[str] = None
    location_auto_detect: bool = False
    location_cgnat_resolve_public_ip: bool = False
    dialogue_memory_timeout: int = 300
    llm_thinking_enabled: bool = False
    intent_judge_thinking_enabled: bool = False
    dictation_thinking_enabled: bool = False
    mcps: Dict[str, Any] = field(default_factory=dict)
    use_stdin: bool = True


@pytest.fixture
def mock_config():
    """Provide a mock configuration for unit tests."""
    return MockConfig()


@pytest.fixture
def db():
    """Provide an in-memory database for unit tests."""
    from jarvis.memory.db import Database
    database = Database(":memory:", sqlite_vss_path=None)
    yield database
    database.close()


@pytest.fixture
def dialogue_memory():
    """Provide a dialogue memory instance for unit tests."""
    from jarvis.memory.conversation import DialogueMemory
    return DialogueMemory(inactivity_timeout=300, max_interactions=20)


@pytest.fixture
def qapp():
    """Provide a shared QApplication for Qt-based UI tests.

    Qt requires exactly one QApplication per process.  Re-uses an existing
    instance when present so repeated test runs inside a single session
    don't error.
    """
    from PyQt6.QtWidgets import QApplication
    app = QApplication.instance()
    if app is None:
        app = QApplication([])
    yield app