from gyxx_flow.migration.sync_feishu_style_identity import (
    StyleIdentity,
    _merge_target_row,
    build_sync_plan,
)


def _row(record_id: str, **config):
    return {"source_record_id": record_id, "config": config}


def test_build_sync_plan_groups_platform_rows_and_deduplicates_ids():
    styles, report = build_sync_plan(
        [
            _row(
                "tm-1",
                style_name=" 极星pro ",
                brand="光影行星",
                erp_codes="10398,10398",
                platform="天猫",
                item_ids="TM-1,TM-2",
            ),
            _row(
                "jd-1",
                style_name="极星pro",
                brand="光影行星",
                erp_codes=["10398"],
                platform="京东旗舰店",
                item_ids=["JD-1", "JD-1"],
            ),
        ]
    )

    assert [style.name for style in styles] == ["极星pro"]
    assert styles[0].erp_codes == ["10398"]
    assert styles[0].platform_product_ids == {
        "tm": ["TM-1", "TM-2"],
        "jd": ["JD-1"],
        "jd_self": [],
        "dy": [],
    }
    assert report["collectable_styles"] == ["极星pro"]


def test_build_sync_plan_reports_unknown_platform_and_blank_style():
    styles, report = build_sync_plan(
        [
            _row(
                "pdd-1",
                style_name="宙斯",
                brand="光影行星",
                erp_codes="10489",
                platform="拼多多",
                item_ids="PDD-1",
            ),
            _row(
                "blank-1",
                style_name="",
                brand="",
                erp_codes="",
                platform="天猫",
                item_ids="",
            ),
        ]
    )

    assert [style.name for style in styles] == ["宙斯"]
    assert report["unknown_platform_rows"] == [
        {
            "style": "宙斯",
            "platform": "拼多多",
            "item_count": 1,
            "record_id": "pdd-1",
        }
    ]
    assert report["skipped_rows"] == [
        {"record_id": "blank-1", "reason": "款式名称为空"}
    ]


def test_merge_target_row_does_not_erase_existing_identity_with_blank_source():
    style = StyleIdentity(name="宙斯")
    merged = _merge_target_row(
        style,
        {
            "name": "宙斯",
            "brand": "光影行星",
            "erp_style_codes": ["10489"],
            "platform_product_ids": {
                "天猫": ["OLD-TM"],
                "tm": ["TM-1"],
                "jd": ["JD-1"],
            },
        },
    )

    assert merged["brand"] == "光影行星"
    assert merged["erp_style_codes"] == ["10489"]
    assert merged["platform_product_ids"]["tm"] == ["TM-1"]
    assert merged["platform_product_ids"]["jd"] == ["JD-1"]
    assert merged["platform_product_ids"]["jd_self"] == []
    assert merged["platform_product_ids"]["dy"] == []