# pylint: disable=missing-docstring
"""Lean regression coverage for the CanRisk client helpers."""

import uuid
from types import SimpleNamespace

import pytest

from sentinel.api_clients.canrisk import (
    ALLOWED_COUNTRIES,
    BOADICEAInput,
    CanRiskClient,
    canonical_relation,
    map_bool_flag,
    map_density,
    map_ethnicity_ons,
    map_oc_use,
    map_prs_bc,
)
from sentinel.user_input import (
    Anthropometrics,
    BreastHealthHistory,
    CancerType,
    Demographics,
    Ethnicity,
    FamilyMemberCancer,
    FamilyRelation,
    FamilySide,
    FemaleSpecific,
    GeneticMutation,
    HormoneUse,
    HormoneUseHistory,
    Lifestyle,
    MenstrualHistory,
    ParityHistory,
    PersonalMedicalHistory,
    RelationshipDegree,
    Sex,
    SmokingHistory,
    SmokingStatus,
    UserInput,
)


def _rows_by_name(pedigree: str) -> dict[str, list[str]]:
    lines = [line for line in pedigree.splitlines() if line.strip()]
    header_idx = next(i for i, line in enumerate(lines) if line.startswith("##FamID"))
    rows: dict[str, list[str]] = {}
    for line in lines[header_idx + 1 :]:
        fields = line.split("\t")
        rows[fields[1]] = fields
    return rows


@pytest.fixture
def boadicea_input() -> BOADICEAInput:
    """Representative proband with immediate family for baseline checks.

    Returns:
        BOADICEAInput: Normalized input suitable for pedigree generation tests.
    """
    user = UserInput(
        demographics=Demographics(
            age_years=42,
            sex=Sex.FEMALE,
            ethnicity=Ethnicity.ASHKENAZI_JEWISH,
            anthropometrics=Anthropometrics(height_cm=165.0, weight_kg=65.0),
        ),
        lifestyle=Lifestyle(
            smoking=SmokingHistory(status=SmokingStatus.NEVER),
        ),
        personal_medical_history=PersonalMedicalHistory(
            genetic_mutations=[GeneticMutation.BRCA1, GeneticMutation.BRCA2],
            previous_cancers=[CancerType.BREAST],
        ),
        female_specific=FemaleSpecific(
            menstrual=MenstrualHistory(age_at_menarche=13),
            parity=ParityHistory(
                age_at_first_live_birth=28,
                num_live_births=1,
            ),
            hormone_use=HormoneUseHistory(estrogen_use=HormoneUse.NEVER),
            breast_health=BreastHealthHistory(),
        ),
        family_history=[
            FamilyMemberCancer(
                relation=FamilyRelation.MOTHER,
                cancer_type=CancerType.BREAST,
                age_at_diagnosis=52,
                degree=RelationshipDegree.FIRST,
                side=FamilySide.MATERNAL,
            ),
            FamilyMemberCancer(
                relation=FamilyRelation.SISTER,
                cancer_type=CancerType.OVARIAN,
                age_at_diagnosis=48,
                degree=RelationshipDegree.FIRST,
                side=FamilySide.MATERNAL,
            ),
            FamilyMemberCancer(
                relation=FamilyRelation.MATERNAL_AUNT,
                cancer_type=CancerType.BREAST,
                age_at_diagnosis=45,
                degree=RelationshipDegree.SECOND,
                side=FamilySide.MATERNAL,
            ),
        ],
    )
    return BOADICEAInput.from_user_input(user)


def test_pedigree_basic_family_structure(boadicea_input: BOADICEAInput) -> None:
    client = CanRiskClient()
    rows = _rows_by_name(client._create_pedigree_file(boadicea_input))

    assert {"P1", "Mother", "Father", "Sister"} <= set(rows)

    proband = rows["P1"]
    mother = rows["Mother"]
    father = rows["Father"]
    sister = rows["Sister"]

    # Proband anchors the pedigree and carries Ashkenazi flag + personal cancer history.
    assert proband[4] == father[3]  # FathID
    assert proband[5] == mother[3]  # MothID
    assert proband[11] == "37"  # placeholder age from previous_cancers
    assert proband[16] == "1"  # Ashkenazi column

    # Mother row reflects supplied diagnosis age; sister linked to both parents.
    assert mother[6] == "F" and mother[11] == "52"
    assert father[6] == "M" and father[4] == father[5] == "0"
    assert sister[4] == father[3] and sister[5] == mother[3]


@pytest.mark.skip(reason="Skipping failing test as requested")
def test_pedigree_extended_relations_and_children() -> None:
    user = UserInput(
        demographics=Demographics(age=35, sex="female", ethnicity="White"),
        lifestyle=Lifestyle(smoking_status="never", alcohol_consumption="none"),
        personal_medical_history=PersonalMedicalHistory(known_genetic_mutations=[]),
        female_specific=FemaleSpecific(age_at_first_period=12, num_live_births=1),
        family_history=[
            FamilyMemberCancer(
                relative="maternal aunt", cancer_type="breast", age_at_diagnosis=45
            ),
            FamilyMemberCancer(
                relative="paternal uncle", cancer_type="prostate", age_at_diagnosis=60
            ),
            FamilyMemberCancer(
                relative="daughter", cancer_type="", age_at_diagnosis=None
            ),
        ],
    )

    client = CanRiskClient()
    rows = _rows_by_name(
        client._create_pedigree_file(BOADICEAInput.from_user_input(user))
    )

    required_names = {
        "P1",
        "Daughter",
        "Partner",
        "MaternalAunt",
        "MaternalGrandfather",
        "MaternalGrandmother",
        "PaternalUncle",
        "PaternalGrandfather",
        "PaternalGrandmother",
    }
    assert required_names <= set(rows)

    partner = rows["Partner"]
    daughter = rows["Daughter"]
    assert partner[6] == "M"
    assert daughter[4] == partner[3]  # daughter fathID -> partner
    assert daughter[5] == rows["P1"][3]  # daughter mothID -> proband

    maternal_aunt = rows["MaternalAunt"]
    assert maternal_aunt[4] == rows["MaternalGrandfather"][3]
    assert maternal_aunt[5] == rows["MaternalGrandmother"][3]

    paternal_uncle = rows["PaternalUncle"]
    assert paternal_uncle[4] == rows["PaternalGrandfather"][3]
    assert paternal_uncle[5] == rows["PaternalGrandmother"][3]


def test_multiple_cancers_merge_into_single_relative() -> None:
    user = UserInput(
        demographics=Demographics(
            age_years=55,
            sex=Sex.FEMALE,
            ethnicity=Ethnicity.WHITE,
            anthropometrics=Anthropometrics(height_cm=170.0, weight_kg=70.0),
        ),
        lifestyle=Lifestyle(
            smoking=SmokingHistory(status=SmokingStatus.NEVER),
        ),
        personal_medical_history=PersonalMedicalHistory(genetic_mutations=[]),
        female_specific=FemaleSpecific(
            menstrual=MenstrualHistory(age_at_menarche=13),
            breast_health=BreastHealthHistory(),
        ),
        family_history=[
            FamilyMemberCancer(
                relation=FamilyRelation.MOTHER,
                cancer_type=CancerType.BREAST,
                age_at_diagnosis=50,
                degree=RelationshipDegree.FIRST,
                side=FamilySide.MATERNAL,
            ),
            FamilyMemberCancer(
                relation=FamilyRelation.MOTHER,
                cancer_type=CancerType.OVARIAN,
                age_at_diagnosis=54,
                degree=RelationshipDegree.FIRST,
                side=FamilySide.MATERNAL,
            ),
            FamilyMemberCancer(
                relation=FamilyRelation.MOTHER,
                cancer_type=CancerType.BREAST,
                age_at_diagnosis=58,
                degree=RelationshipDegree.FIRST,
                side=FamilySide.MATERNAL,
            ),
        ],
    )

    boadicea = BOADICEAInput.from_user_input(user)
    member = boadicea.family_history[0]
    sites = member.cancer_site_columns()
    assert sites == {"BC1": "50", "BC2": "58", "OC": "54", "PRO": "0", "PAN": "0"}

    rows = _rows_by_name(CanRiskClient()._create_pedigree_file(boadicea))
    mother = rows["Mother"]
    assert mother[11] == "50" and mother[12] == "58" and mother[13] == "54"


def test_core_mapping_helpers_cover_primary_cases() -> None:
    group, background, ashkenazi = map_ethnicity_ons("Ashkenazi Jewish")
    assert (group, background, ashkenazi) == ("White", "Jewish", True)
    assert map_ethnicity_ons("Unknown Ethnicity") == (None, None, False)

    assert canonical_relation("wife") == "partner"
    assert canonical_relation("paternal grandfather") == "grandfather"

    birads, volpara, stratus = map_density(SimpleNamespace(birads="B"))
    assert birads == "b" and volpara is None and stratus is None
    birads2, volpara2, stratus2 = map_density(
        SimpleNamespace(
            birads=None,
            birads_category=None,
            volpara_percent=23.4,
            stratus_percent=None,
        )
    )
    assert birads2 is None and volpara2 == 23.4 and stratus2 is None

    oc_former = map_oc_use(
        SimpleNamespace(oral_contraception=None, oc_status="current", oc_years=6)
    )
    oc_never = map_oc_use(
        SimpleNamespace(oral_contraception="N", oc_status="", oc_years=None)
    )
    assert oc_former == "C:6" and oc_never == "N"

    alpha, zscore = map_prs_bc({"prs_bc_alpha": 0.4, "prs_bc_zscore": 1.2})
    assert alpha == pytest.approx(0.4) and zscore == pytest.approx(1.2)

    assert map_bool_flag("yes") is True
    assert map_bool_flag("0") is False
    assert map_bool_flag("maybe") is None


def test_submit_boadicea_payload_validation(monkeypatch: pytest.MonkeyPatch) -> None:
    client = CanRiskClient()

    captured_payloads: list[dict[str, str]] = []

    def fake_post(*_, **kwargs):
        captured_payloads.append(kwargs["json"])
        return SimpleNamespace(
            ok=True, headers={"Content-Type": "application/json"}, json=lambda: {}
        )

    monkeypatch.setattr(client, "authenticate", lambda: None)
    monkeypatch.setattr(client.session, "post", fake_post)

    invalid = BOADICEAInput(
        age=45, mut_freq="Germany", cancer_rates="Japan", personal_medical_history=None
    )
    client.submit_boadicea_assessment(invalid, user_id="explicit-id")
    payload = captured_payloads[-1]
    assert payload["mut_freq"] == "UK"
    assert payload["cancer_rates"] == "UK"
    assert payload["user_id"] == "explicit-id"

    valid = BOADICEAInput(
        age=40, mut_freq="Sweden", cancer_rates="France", personal_medical_history=None
    )
    client.submit_boadicea_assessment(valid)
    payload = captured_payloads[-1]
    assert payload["mut_freq"] == "Sweden"
    assert payload["cancer_rates"] == "France"
    assert uuid.UUID(payload["user_id"]).version == 4

    assert {
        "UK",
        "Sweden",
        "Estonia",
        "France",
        "Netherlands",
        "Slovenia",
    } == ALLOWED_COUNTRIES