#!/usr/bin/env python3
"""Build three standalone liminal SurfaceWorld fixtures from the owner input."""
from __future__ import annotations

import argparse
import json
import os
from pathlib import Path


ROOT = Path(__file__).resolve().parents[4]
OWNER = Path(os.environ.get("VOXELFORGE_OWNER_DATA",
                            ROOT / "Standalone/data/owner_world.json"))
OUT_DEFAULT = Path(os.environ.get("VOXELFORGE_VERIFY_OUT", ROOT / "Saved/Linux/l141"))

FLAT_FIELD = {
    "version": 1,
    "kind": "flatField",
    "minimum_arena_clearance_m": 0.0,
}


def main() -> None:
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("--out", type=Path, default=OUT_DEFAULT / "fixtures")
    args = parser.parse_args()
    args.out.mkdir(parents=True, exist_ok=True)
    base = json.loads(OWNER.read_text(encoding="utf-8"))

    flat = dict(base)
    flat["surface_profile_override"] = dict(FLAT_FIELD)
    flat["motif_family_override"] = {
        "version": 1,
        "strate_index": 0,
        "placement_policy": "seed,strate,stable_id",
        "motifs": [
            {
                "stable_id": "liminal/oversized-familiar-monolith-v1",
                "kind": "cappedCylinder",
                "radius_m": 1.6,
                "height_m": 26.0,
                "route_side_offset_m": 42.0,
                "placement_radius_m": 0.0,
                "fillet_radius_m": 0.6,
                "blend_width_m": 1.2,
                "minimum_spacing_m": 0.0,
                "yaw_quarter_turns": 0,
                "attachment": "seated_floor",
            },
        ],
    }

    hills = dict(base)
    hills["surface_profile_override"] = {
        "version": 1,
        "kind": "periodicHills",
        "amplitude_x_m": 2.2,
        "amplitude_y_m": 2.2,
        "wavelength_x_m": 80.0,
        "wavelength_y_m": 80.0,
        "minimum_arena_clearance_m": 0.0,
    }

    road = dict(base)
    road["surface_profile_override"] = dict(FLAT_FIELD)
    road["liminal_road_override"] = {
        "stable_id": "liminal/raised-road-v1",
        "strate_index": 0,
        "position_xy_m": [240.0, 180.0],
        "half_extents_m": [32.5, 3.0, 0.75],
        "deck_height_above_field_m": 22.0,
        "yaw_quarter_turns": 0,
    }

    for name, fixture in (("flatField-monolith", flat),
                          ("periodicHills", hills),
                          ("raised-road", road)):
        path = args.out / f"liminal-{name}.json"
        path.write_text(json.dumps(fixture, indent=2) + "\n", encoding="utf-8")
        print(f"[L141Fixture] name={name} file={path} status=PASS")


if __name__ == "__main__":
    main()