"""
Unit tests for the E2E fixture-mode switch in utils/groq_client.py.

Scope: fixture mode is what lets the (not-yet-built) E2E/crawler suite walk
the app without spending real Groq tokens — see docs/qa/test-strategy.md and
the project-e2e-testing-design memory. These tests only verify the switch
itself behaves correctly; they don't touch real Groq (ADR-0009 keeps that
out of scope for automation).
"""
import importlib
import os

import pytest


@pytest.fixture
def fixture_mode(monkeypatch):
    """Reloads utils.groq_client with E2E_FIXTURE_MODE=1, then reloads it back
    off afterward so other tests aren't affected by module-level state."""
    monkeypatch.setenv("E2E_FIXTURE_MODE", "1")
    import utils.groq_client as gc
    importlib.reload(gc)
    yield gc
    monkeypatch.delenv("E2E_FIXTURE_MODE", raising=False)
    importlib.reload(gc)


def test_call_groq_json_returns_fixture_without_network(fixture_mode):
    data = fixture_mode.call_groq_json("system", "user", fixture="businessIdentity")
    assert data["businessName"] == "Ada's Fresh Kitchen"


def test_call_groq_json_without_fixture_key_raises(fixture_mode):
    with pytest.raises(RuntimeError, match="no fixture key"):
        fixture_mode.call_groq_json("system", "user")


def test_call_groq_json_missing_fixture_file_raises(fixture_mode):
    with pytest.raises(RuntimeError, match="no fixture file"):
        fixture_mode.call_groq_json("system", "user", fixture="does-not-exist")


def test_call_groq_stream_yields_chunks_shaped_like_the_real_sdk(fixture_mode):
    chunks = list(fixture_mode.call_groq_stream("system", "user", fixture="chat_response"))
    assert len(chunks) > 1
    rebuilt = "".join(c.choices[0].delta.content for c in chunks)
    assert "subscription" in rebuilt


def test_call_groq_transcribe_returns_object_with_text(fixture_mode):
    result = fixture_mode.call_groq_transcribe(file=("a.webm", b"", "audio/webm"), fixture="transcript")
    assert "meals a day" in result.text


@pytest.fixture
def demo_mode(monkeypatch):
    monkeypatch.setenv("DEMO_MODE", "1")
    monkeypatch.setenv("E2E_FIXTURE_MODE", "1")
    import utils.groq_client as gc
    importlib.reload(gc)
    yield gc
    monkeypatch.delenv("E2E_FIXTURE_MODE", raising=False)
    monkeypatch.delenv("DEMO_MODE", raising=False)
    importlib.reload(gc)


def test_demo_mode_turns_json_text_into_test_environment_but_keeps_structure(demo_mode):
    data = demo_mode.call_groq_json("system", "user", fixture="planning_tasks")
    tasks = data["suggestions"]
    assert tasks and all(t["title"] == "Test Environment" for t in tasks)
    assert all(t["column"] in {"todo", "in_progress", "done"} for t in tasks)


def test_demo_mode_stream_says_test_environment(demo_mode):
    chunks = list(demo_mode.call_groq_stream("system", "user", fixture="chat_response"))
    assert "".join(c.choices[0].delta.content for c in chunks).strip() == "Test Environment"


def test_demo_mode_needs_fixture_mode():
    os.environ["DEMO_MODE"] = "1"
    try:
        import utils.groq_client as gc
        importlib.reload(gc)
        assert gc.DEMO_MODE is False
    finally:
        os.environ.pop("DEMO_MODE", None)
        importlib.reload(gc)


def test_fixture_mode_is_off_by_default():
    import utils.groq_client as gc
    importlib.reload(gc)
    assert gc.FIXTURE_MODE is False