from pathlib import Path
import sys

import pytest

sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "api"))
pytest.importorskip("pptx")

from insurance.ppt.template_asset_service import (
    parse_template_pptx,
    resolve_template_asset,
)


@pytest.mark.parametrize(
    ("asset_id", "expected_slides"),
    [
        ("builtin://single_savings.pptx", 20),
        ("builtin://multi_savings_comparison.pptx", 17),
        ("builtin://savings_iul_comprehensive.pptx", 18),
    ],
)
def test_builtin_ppt_templates_are_parseable(asset_id, expected_slides):
    path = resolve_template_asset(asset_id)

    assert path
    assert Path(path).is_file()
    parsed = parse_template_pptx(path)
    assert parsed["slideCount"] == expected_slides
    assert parsed["slidesConfig"][0]["pageType"] == "cover"
    assert parsed["slidesConfig"][-1]["pageType"] == "closing"


def test_template_asset_resolver_blocks_parent_traversal():
    with pytest.raises(ValueError, match="路径非法"):
        resolve_template_asset("builtin://../outside.pptx")


def test_renderer_can_reuse_builtin_template_master(tmp_path):
    from insurance.ppt.scripts.fast_pptx_renderer import render_deck

    source_path = resolve_template_asset("builtin://single_savings.pptx")
    output_path = tmp_path / "rendered.pptx"
    result = render_deck({
        "products": [{
            "kind": "savings",
            "productName": "测试储蓄计划",
            "insured": {"age": 35},
            "policy": {
                "currency": "USD",
                "annualPremium": 50000,
                "payYears": 5,
            },
            "benefitRows": [],
            "withdrawalRows": [],
        }],
        "company": {},
        "scenarioSlides": [
            {"pageType": "cover", "title": "测试模板"},
            {"pageType": "closing", "title": "下一步"},
        ],
        "templateConfig": {"sourceTemplatePath": source_path},
    }, str(output_path), "deepblue")

    assert result["ok"] is True
    assert result["slides"] == 2
    assert output_path.is_file()