"""The shared quest-icon registry: one curated source, two identical artefacts.

``tools/icons/curated-icons.json`` is the only hand-edited list; the offline
generator ``tools/icons/generate.mjs`` writes the same module into the admin
PWA and the panel bundle. The admin Vitest suite regenerates and compares
byte-for-byte; these checks need no Node for the core guarantees.
"""
from __future__ import annotations

import json
import re
import shutil
import subprocess
from pathlib import Path

import pytest

REPO_ROOT = Path(__file__).parent.parent
SOURCE = REPO_ROOT / "tools" / "icons" / "curated-icons.json"
GENERATOR = REPO_ROOT / "tools" / "icons" / "generate.mjs"
ARTEFACTS = (
    REPO_ROOT / "admin" / "src" / "icons" / "registry.generated.ts",
    REPO_ROOT / "frontend" / "src" / "icons" / "registry.generated.ts",
)
PANEL_BUNDLE = (
    REPO_ROOT / "custom_components" / "nestquest" / "www" / "nestquest-cards.js"
)


def _curated() -> dict[str, list[dict[str, str]]]:
    return json.loads(SOURCE.read_text(encoding="utf-8"))


def _generated_set(text: str, const: str) -> list[dict]:
    match = re.search(
        rf"export const {const}: readonly GlyphIcon\[\] = (\[.*?\n\]);",
        text,
        re.DOTALL,
    )
    assert match, f"{const} not found in the generated registry"
    return json.loads(match.group(1))


def test_both_artefacts_are_byte_identical() -> None:
    admin, frontend = (path.read_bytes() for path in ARTEFACTS)
    assert admin == frontend


def test_artefacts_carry_exactly_the_curated_names_and_labels() -> None:
    curated = _curated()
    text = ARTEFACTS[0].read_text(encoding="utf-8")
    for namespace, const in (("lucide", "LUCIDE_ICONS"), ("fa", "FA_ICONS")):
        entries = _generated_set(text, const)
        assert [
            {"name": e["name"], "label": e["label"]} for e in entries
        ] == curated[namespace]
        for entry in entries:
            assert entry["kind"] == namespace
            assert entry["key"] == f"{namespace}:{entry['name']}"
            assert re.fullmatch(r"0 0 \d+ \d+", entry["viewBox"])
            assert entry["paths"] and all(entry["paths"])
    assert len(curated["lucide"]) == 36
    assert 15 <= len(curated["fa"]) <= 25


def test_artefacts_carry_the_full_font_awesome_free_solid_set() -> None:
    text = ARTEFACTS[0].read_text(encoding="utf-8")
    solid = _generated_set(text, "FA_SOLID_ICONS")
    names = [entry["name"] for entry in solid]
    assert names == sorted(names)
    assert len(set(names)) == len(names)
    # The complete Free Solid set, not a curated pick (7.x ships ~1,400).
    assert len(solid) >= 1400
    for entry in solid:
        assert set(entry) == {"kind", "key", "name", "label", "viewBox", "paths"}
        assert entry["kind"] == "fa"
        assert entry["key"] == f"fa:{entry['name']}"
        assert entry["label"] == " ".join(
            part[0].upper() + part[1:] for part in entry["name"].split("-")
        )
        assert re.fullmatch(r"0 0 \d+ \d+", entry["viewBox"])
        assert entry["paths"] and all(entry["paths"])
    # A well-known glyph, a barely-known one, and every curated quick-pick.
    assert {"rocket", "mug-hot", "person-dress-burst"} <= set(names)
    assert {e["name"] for e in _curated()["fa"]} <= set(names)
    assert "rocket-ship-9000" not in names


def test_resolve_icon_resolves_any_free_solid_name() -> None:
    node = shutil.which("node")
    if node is None:
        pytest.skip("needs node")
    script = (
        "const m = await import(process.argv[1]);"
        "const out = {};"
        "for (const v of JSON.parse(process.argv[2])) {"
        " const r = m.resolveIcon(v); out[v] = [r.kind, r.label ?? null]; }"
        "console.log(JSON.stringify(out));"
    )
    values = [
        "fa:rocket",
        "fa:mug-hot",
        "fa:person-dress-burst",
        "fa:paw",
        "fa:rocket-ship-9000",
        "fa:Rocket",
        "fa:",
        "lucide:dog",
        "dog",
        "lucide:rocket",
    ]
    result = subprocess.run(
        [node, "--input-type=module", "-e", script,
         ARTEFACTS[0].as_uri(), json.dumps(values)],
        cwd=REPO_ROOT,
        capture_output=True,
        text=True,
        check=False,
    )
    if result.returncode != 0 and "Unknown file extension" in result.stderr:
        pytest.skip("node cannot strip TypeScript types (needs Node 22.18+)")
    assert result.returncode == 0, result.stderr
    resolved = json.loads(result.stdout)
    assert resolved["fa:rocket"] == ["fa", "Rocket"]
    assert resolved["fa:mug-hot"] == ["fa", "Mug Hot"]
    assert resolved["fa:person-dress-burst"] == ["fa", "Person Dress Burst"]
    # Curated entries keep their quick-pick label.
    assert resolved["fa:paw"] == ["fa", "Pets"]
    assert resolved["lucide:dog"][0] == "lucide"
    assert resolved["dog"][0] == "lucide"
    for unknown in ("fa:rocket-ship-9000", "fa:Rocket", "fa:", "lucide:rocket"):
        assert resolved[unknown] == ["fallback", None], unknown


def test_registry_has_no_remote_url_cdn_or_lucide_runtime() -> None:
    for path in (SOURCE, GENERATOR, *ARTEFACTS):
        text = path.read_text(encoding="utf-8")
        assert not re.search(r"https?://", text, re.IGNORECASE), path
        assert not re.search(
            r"\bcdn\b|jsdelivr|unpkg|cdnjs|kit\.fontawesome", text, re.IGNORECASE
        ), path
        assert "data-lucide" not in text, path


def test_panel_bundle_embeds_the_registry() -> None:
    bundle = PANEL_BUNDLE.read_text(encoding="utf-8")
    assert "fa:broom" in bundle
    assert "lucide:dog" in bundle
    assert "data-lucide" not in bundle


def test_generator_reproduces_the_committed_artefacts() -> None:
    node = shutil.which("node")
    if node is None or not (REPO_ROOT / "admin" / "node_modules").is_dir():
        pytest.skip("needs node and admin/node_modules (npm ci in admin/)")
    result = subprocess.run(
        [node, str(GENERATOR), "--check"],
        cwd=REPO_ROOT,
        capture_output=True,
        text=True,
        check=False,
    )
    assert result.returncode == 0, result.stderr