"""Source-bounded regression tests for the local Shodashottari producer."""

from __future__ import annotations

import json
from datetime import datetime
from pathlib import Path

from scripts.shodashottari_dasha import calculate_shodashottari_dasha, shodashottari_applicability
from scripts.source_bounded_child_periods import PYJHORA_PARENT_SEEDED_EQUAL_SPLIT_PROFILE


ROOT = Path(__file__).resolve().parents[1]


def test_shodashottari_accepts_the_two_classical_hora_paksha_gates() -> None:
    assert shodashottari_applicability(ascendant_longitude=5.0, sun_longitude=0.0, moon_longitude=90.0)["applicable"]
    assert shodashottari_applicability(ascendant_longitude=20.0, sun_longitude=0.0, moon_longitude=270.0)["applicable"]


def test_shodashottari_rejects_the_crossed_hora_paksha_cases() -> None:
    result = shodashottari_applicability(ascendant_longitude=20.0, sun_longitude=0.0, moon_longitude=90.0)

    assert result["applicable"] is False
    assert result["hora_lord"] == "Moon"
    assert result["paksha"] == "shukla"


def test_shodashottari_builds_birth_balance_without_inventing_ad_pd_boundaries() -> None:
    result = calculate_shodashottari_dasha({
        "birth_datetime": datetime(2000, 1, 1, 12, 0),
        "ascendant_longitude": 5.0,
        "sun_longitude": 0.0,
        "moon_longitude": 95.0,
        "dasha_year_days": 365.25636,
    })

    assert result["execution_status"] == "executed"
    assert result["confidence_status"] == "parameter_sensitive"
    assert result["applicable"] is True
    assert result["starting_lord"] == "Sun"  # Pushya is the Shodashottari seed.
    assert result["total_cycle"] == 116
    assert result["major"][0]["planet"] == "Sun"
    assert result["major"][0]["start_date"] == "2000-01-01T12:00:00"
    assert result["major"][0]["years"] < 11.0
    assert result["period_depth_status"] == "mahadasha_executed_ad_pd_blocked_pending_row_level_replay"
    assert "antardasha" not in result["major"][0]


def test_shodashottari_keeps_non_applicable_result_non_executed() -> None:
    result = calculate_shodashottari_dasha({
        "birth_datetime": "2000-01-01T12:00:00",
        "ascendant_longitude": 20.0,
        "sun_longitude": 0.0,
        "moon_longitude": 95.0,
    })

    assert result["execution_status"] == "not_applicable"
    assert result["major"] == []


def test_shodashottari_standard_table_profile_preserves_unmet_gate_but_emits_rows() -> None:
    result = calculate_shodashottari_dasha({
        "birth_datetime": "2000-01-01T12:00:00",
        "ascendant_longitude": 20.0,
        "sun_longitude": 0.0,
        "moon_longitude": 95.0,
        "standard_table_profile": "pl9_reports_all_dasha_tables_v1",
    })

    assert result["execution_status"] == "executed"
    assert result["classical_applicable"] is False
    assert result["standard_table_profile"] == "pl9_reports_all_dasha_tables_v1"
    assert len(result["major"]) == 8


def test_shodashottari_can_emit_pyjhora_observed_child_profile_when_explicit() -> None:
    result = calculate_shodashottari_dasha({
        "birth_datetime": datetime(2000, 1, 1, 12, 0),
        "ascendant_longitude": 5.0,
        "sun_longitude": 0.0,
        "moon_longitude": 95.0,
        "child_period_profile": PYJHORA_PARENT_SEEDED_EQUAL_SPLIT_PROFILE,
    })

    first_md = result["major"][0]
    first_ad = first_md["antardasha"][0]
    first_pd = first_ad["pratyantardasha"][0]
    assert result["period_depth_status"] == "mahadasha_antardasha_pratyantardasha_executed_pyjhora_observed_profile"
    assert len(result["antardasha"]) == 64
    assert len(result["pratyantardasha"]) == 512
    assert first_ad["lord"] == first_md["lord"]
    assert first_pd["lord"] == first_ad["lord"]
    assert first_md["antardasha"][-1]["end_date"] == first_md["end_date"]