"""lipsync 口型同步 — v1.6.2 起免费，不扣积分"""

from __future__ import annotations

import math
from types import SimpleNamespace
from unittest.mock import MagicMock, patch

import pytest
from fastapi import HTTPException


def _cu(user_id="u1", is_member=False, member_type=None):
    cu = MagicMock()
    cu.user.id = user_id
    cu.user.is_member = is_member
    cu.user.member_type = member_type
    return cu


def _body(**kw):
    b = MagicMock()
    defaults = dict(
        video_url="http://x/v.mp4",
        audio_url=None,
        audio_duration=None,
        sentence_timings=None,
        voice_id=None,
        script_text="你好世界",
        speed=1.0,
        emotion="",
        enable_video_loop=False,
        project_id=None,
    )
    defaults.update(kw)
    for k, v in defaults.items():
        setattr(b, k, v)
    return b


class TestLipsyncFree:
    """lipsync 已移除手动扣点，业务异常仍按原状态码抛出。"""

    def test_ai_digital_human_returns_zero_cost(self):
        from packages.domain.points_rules import calculate_points_cost

        assert calculate_points_cost("ai_digital_human", is_member=False, duration_minutes=1) == 0
        assert calculate_points_cost("ai_digital_human", is_member=True, duration_minutes=10) == 0

    def test_module_has_no_points_imports(self):
        import inspect

        from app.api.routes import lipsync as mod

        src = inspect.getsource(mod)
        assert "PointsService" not in src
        assert "calculate_points_cost" not in src
        assert "_points_deducted" not in src
        assert "settings" not in src  # settings was only used for points_enabled

    def test_docstring_at_top_of_create_lipsync_job(self):
        """扣点块删除后，docstring 必须在函数体第一行（防止函数体中段 docstring 丢失）。"""
        import ast
        import inspect

        from app.api.routes.lipsync import create_lipsync_job

        src = inspect.getsource(create_lipsync_job)
        tree = ast.parse(src)
        fn = tree.body[0]
        # docstring 应为函数体第一条语句
        assert (
            isinstance(fn.body[0], ast.Expr)
            and isinstance(fn.body[0].value, ast.Constant)
            and isinstance(fn.body[0].value.value, str)
        ), "create_lipsync_job docstring 不在函数体开头"

    def test_docstring_at_top_of_preview_tts(self):
        import ast
        import inspect

        from app.api.routes.lipsync import preview_tts

        src = inspect.getsource(preview_tts)
        tree = ast.parse(src)
        fn = tree.body[0]
        assert (
            isinstance(fn.body[0], ast.Expr)
            and isinstance(fn.body[0].value, ast.Constant)
            and isinstance(fn.body[0].value.value, str)
        ), "preview_tts docstring 不在函数体开头"

    def test_value_error_still_raises_400(self):
        """业务异常仍抛 400（不再退费）。"""
        from app.api.routes.lipsync import create_lipsync_job

        db = MagicMock()
        svc = MagicMock()
        svc.create_job.side_effect = ValueError("bad input")
        with pytest.raises(HTTPException) as ei:
            create_lipsync_job(body=_body(), current_user=_cu(), db=db, svc=svc)
        assert ei.value.status_code == 400

    def test_success_returns_job(self):
        from app.api.routes.lipsync import create_lipsync_job

        db = MagicMock()
        svc = MagicMock()
        job = SimpleNamespace(id="job-1", status="queued")
        svc.create_job.return_value = job
        # 不再依赖 settings/PointsService patch
        result = create_lipsync_job(body=_body(), current_user=_cu(), db=db, svc=svc)
        assert result is job