"""Structured chart fences next to each engine SVG in longform Markdown."""

from __future__ import annotations

import json
from functools import lru_cache
from types import SimpleNamespace

from report_chart_block import SIGNS, extract_chart_blocks
from scripts.jyotish_engine import (
    SIGNS as ENGINE_SIGNS,
    _compute_chart_from_args,
    build_professional_report_reference_packet,
    cmd_varga_full,
    render_pl9_markdown,
)

PLACE = "FictionalHarborTownship"
PLANET_ORDER = (
    "Sun",
    "Moon",
    "Mars",
    "Mercury",
    "Jupiter",
    "Venus",
    "Saturn",
    "Rahu",
    "Ketu",
)


def _fictional_args() -> SimpleNamespace:
    return SimpleNamespace(
        year=1990,
        month=6,
        day=15,
        hour=12,
        minute=0,
        second=0,
        lat=39.9042,
        lon=116.4074,
        tz=8.0,
        ayanamsa="raman",
        node_mode="mean",
        divisions=None,
        custom=None,
        composite=None,
        variant=None,
        today="2026-09-09",
        target_year=2026,
        age=36,
        visual_chart_observations=None,
        startrack_language_bridge=False,
        birth_time_accuracy="confirmed",
        position_mode="legacy",
        pack=[],
        packs=None,
    )


def _moon_chart(planets: dict) -> dict:
    longitudes: dict[str, float] = {}
    for name, row in planets.items():
        if not isinstance(row, dict):
            continue
        value = row.get("degree_raw", row.get("degree"))
        if isinstance(value, (int, float)):
            longitudes[name] = float(value)
    moon_lon = longitudes["Moon"] % 360
    moon_sign_idx = int(moon_lon // 30) % 12
    return {
        "status": "computed",
        "raw": {
            "Ascendant": {
                "sign": ENGINE_SIGNS[moon_sign_idx],
                "longitude": round(moon_lon, 6),
                "reference": "Moon",
            },
            "planets": {
                name: {
                    "longitude": round(lon % 360, 6),
                    "sign": ENGINE_SIGNS[int(lon % 360 // 30) % 12],
                    "house_from_moon": ((int(lon % 360 // 30) - moon_sign_idx) % 12) + 1,
                }
                for name, lon in longitudes.items()
            },
        },
    }


@lru_cache(maxsize=1)
def _golden() -> dict:
    args = _fictional_args()
    chart, _asc_idx, _jd, _ayanamsa = _compute_chart_from_args(args)
    assert isinstance(chart, dict)
    varga_full = cmd_varga_full(args)
    full_reading = {
        "version": "4.4.0-full-reading",
        "birth_info": {
            "date": "1990-06-15",
            "time": "12:00:00",
            "hour": 12,
            "minute": 0,
            "second": 0,
            "lat": args.lat,
            "lon": args.lon,
            "tz": "UTC+8.0",
            "place": PLACE,
        },
        "ascendant": chart.get("ascendant"),
        "planets": chart.get("planets"),
        "houses": chart.get("houses"),
        "chart": chart,
        "modules": {
            "varga_full": varga_full,
            "moon_chart": _moon_chart(chart.get("planets") or {}),
        },
        "errors": [],
        "warnings": [],
    }
    packet = build_professional_report_reference_packet(full_reading, args)
    markdown = render_pl9_markdown(packet)
    return {"packet": packet, "markdown": markdown}


def _svg_after_heading(markdown: str, heading: str) -> str:
    rest = markdown[markdown.index(heading):]
    start = rest.index("<svg")
    end = rest.index("</svg>") + len("</svg>")
    return rest[start:end]


def test_fence_count_matches_svg_and_is_twenty_two() -> None:
    markdown = _golden()["markdown"]
    assert markdown.count("<svg") == 22
    assert markdown.count("```jyotish-chart") == 22
    assert len(extract_chart_blocks(markdown)) == 22


def test_each_block_is_parseable_and_in_range() -> None:
    blocks = extract_chart_blocks(_golden()["markdown"])
    assert len(blocks) == 22
    for block in blocks:
        assert block["version"] == 1
        assert block["layout"] == "north"
        assert block["id"] == "MOON" or block["id"].startswith("D")
        assert block["ascendant"]["sign"] in SIGNS
        assert 0 <= block["ascendant"]["degree"] < 30
        assert len(block["planets"]) <= 9
        for planet in block["planets"]:
            assert planet["name"] in PLANET_ORDER
            assert planet["sign"] in SIGNS
            assert 0 <= planet["degree"] < 30
            assert isinstance(planet["retrograde"], bool)


def test_d1_ascendant_matches_core_chart() -> None:
    golden = _golden()
    core = golden["packet"]["core_chart"]
    d1 = next(block for block in extract_chart_blocks(golden["markdown"]) if block["id"] == "D1")
    assert d1["ascendant"]["sign"] == core["ascendant"]["sign"]
    natal = core["planets"]
    for planet in d1["planets"]:
        row = natal.get(planet["name"]) or {}
        assert planet["retrograde"] is bool(row.get("retrograde"))


def test_every_block_uses_natal_retrograde() -> None:
    golden = _golden()
    natal = golden["packet"]["core_chart"]["planets"]
    for block in extract_chart_blocks(golden["markdown"]):
        for planet in block["planets"]:
            row = natal.get(planet["name"]) or {}
            assert planet["retrograde"] is bool(row.get("retrograde"))


def test_chart_blocks_omit_birthplace_label() -> None:
    for block in extract_chart_blocks(_golden()["markdown"]):
        dumped = json.dumps(block, ensure_ascii=False)
        assert PLACE not in dumped
        assert PLACE not in block["title"]


def test_d9_svg_center_label_follows_title() -> None:
    markdown = _golden()["markdown"]
    d9_svg = _svg_after_heading(markdown, "#### D9 — Navamsa（婚盘）")
    assert "(D9)" in d9_svg
    assert "(D1)" not in d9_svg
    d1_svg = _svg_after_heading(markdown, "#### D1 — Rashi Chart（本命盘）")
    assert "(D1)" in d1_svg
    assert "Rasi Chart" in d1_svg


def test_chart_block_suite_is_on_the_quick_quality_gate() -> None:
    from scripts.run_quality_gate import CORE_PYTEST_TARGETS

    assert "tests/test_report_chart_block.py" in CORE_PYTEST_TARGETS