"""Interference-level prompt routing in reference_mapper."""

from __future__ import annotations

from backend.core.reference_mapper import (
    build_interference_messages,
    map_reference_paragraph,
    select_mapping_prompt,
)
from backend.prompts.mapping_prompt import (
    MAPPING_SYSTEM_BASE_MAXIMUM,
    MAPPING_SYSTEM_BASE_MEDIUM,
    MAPPING_SYSTEM_BASE_MINIMUM,
)
from backend.models.schema import TemplateSchema
from backend.prompts.maximum_compose_prompt import MAXIMUM_SYSTEM, build_maximum_messages
from backend.prompts.medium_expand_prompt import MEDIUM_SYSTEM, build_medium_messages
from backend.prompts.minimum_weave_prompt import MINIMUM_SYSTEM, build_minimum_messages


def test_select_mapping_prompt_routes_tier_bases():
    assert select_mapping_prompt("minimum") is MAPPING_SYSTEM_BASE_MINIMUM
    assert select_mapping_prompt("medium") is MAPPING_SYSTEM_BASE_MEDIUM
    assert select_mapping_prompt("maximum") is MAPPING_SYSTEM_BASE_MAXIMUM
    assert select_mapping_prompt("bogus") is MAPPING_SYSTEM_BASE_MAXIMUM
    assert select_mapping_prompt(None) is MAPPING_SYSTEM_BASE_MAXIMUM  # type: ignore[arg-type]


def test_build_minimum_messages_signature_and_strategy():
    msgs = build_minimum_messages("slate slipped", "The roof comprises slate tiles.")
    assert msgs[0]["role"] == "system"
    assert msgs[1]["role"] == "user"
    assert "zero-inference data mapping engine" in msgs[0]["content"]
    assert "DO NOT ADD NEW SENTENCES" in msgs[0]["content"]
    assert "SECTION:" in msgs[1]["content"]
    assert "INPUT 1: PAST-REPORT SCAFFOLD" in msgs[1]["content"]
    assert "INPUT 2: CURRENT INSPECTION NOTES" in msgs[1]["content"]
    assert "* slate slipped" in msgs[1]["content"]


def test_build_medium_messages_signature_and_strategy():
    msgs = build_medium_messages("det to DPC, rep reqd", "The walls were inspected.")
    assert "professional technical copyeditor" in msgs[0]["content"]
    assert "ABSOLUTE HISTORICAL GROUNDING" in msgs[0]["content"]
    assert "PROOFREAD & ENHANCE TECHNICAL DEPTH" in msgs[0]["content"]
    assert "INPUT 2: CURRENT INSPECTION NOTES" in msgs[1]["content"]
    assert "* det to DPC, rep reqd" in msgs[1]["content"]


def test_build_maximum_messages_signature_and_strategy():
    msgs = build_maximum_messages("asbestos noted", "The ceiling was inspected.")
    assert "expert UK Chartered Building Surveyor" in msgs[0]["content"]
    assert "UK_PROPERTY_SURVEYING_DOMAIN_KNOWLEDGE" in msgs[0]["content"]
    assert "INTEGRATED NARRATIVE DRAFTING" in msgs[0]["content"]
    assert "INPUT 2: CURRENT INSPECTION NOTES" in msgs[1]["content"]
    assert "* asbestos noted" in msgs[1]["content"]


def test_all_tiers_share_rics_domain_rules():
    for system in (MINIMUM_SYSTEM, MEDIUM_SYSTEM, MAXIMUM_SYSTEM):
        assert '"1", "2", "3", "NI", "NA"' in system
        assert "[AMBIGUOUS:" in system


def test_build_interference_messages_routes_by_level():
    baseline = "The roof comprises slate tiles."
    notes = ["slate slipped"]
    schema = TemplateSchema()

    min_msgs = build_interference_messages(
        "minimum", observations=notes, baseline=baseline, schema=schema
    )
    med_msgs = build_interference_messages(
        "medium", observations=notes, baseline=baseline, schema=schema
    )
    max_msgs = build_interference_messages(
        "maximum", observations=notes, baseline=baseline, schema=schema
    )

    assert "UPLOADED USER PAST REPORTS" in min_msgs[0]["content"]
    assert MAPPING_SYSTEM_BASE_MINIMUM.strip() in min_msgs[0]["content"]
    assert "ABSOLUTE HISTORICAL GROUNDING" in med_msgs[0]["content"]
    assert MAPPING_SYSTEM_BASE_MEDIUM.strip() in med_msgs[0]["content"]
    assert "INTEGRATED NARRATIVE DRAFTING" in max_msgs[0]["content"]
    assert MAPPING_SYSTEM_BASE_MAXIMUM.strip() in max_msgs[0]["content"]
    assert min_msgs[0]["content"] != med_msgs[0]["content"] != max_msgs[0]["content"]


def test_build_interference_messages_unknown_defaults_to_maximum():
    explicit = build_interference_messages(
        "maximum",
        observations=["x"],
        baseline="baseline prose.",
        schema=TemplateSchema(),
    )
    unknown = build_interference_messages(
        "bogus",
        observations=["x"],
        baseline="baseline prose.",
        schema=TemplateSchema(),
    )
    assert unknown[0]["content"] == explicit[0]["content"]
    assert unknown[1]["content"] == explicit[1]["content"]


def test_map_reference_paragraph_branches_on_level(monkeypatch):
    captured: list[str] = []

    def fake_build(level, **kwargs):
        captured.append(str(level))
        return [{"role": "system", "content": "sys"}, {"role": "user", "content": "user"}]

    monkeypatch.setattr(
        "backend.core.reference_mapper.build_interference_messages",
        fake_build,
    )
    monkeypatch.setattr(
        "backend.core.reference_mapper.map_inplace_baseline",
        lambda *args, **kwargs: kwargs.get("messages") and "ok" or "fail",
    )

    schema = TemplateSchema()
    baseline = "The chimney was inspected."
    notes = ["crack noted"]

    map_reference_paragraph(baseline, notes, schema, "minimum")
    map_reference_paragraph(baseline, notes, schema, "medium")
    map_reference_paragraph(baseline, notes, schema, "maximum")

    assert captured == ["minimum", "medium", "maximum"]