"""Native, inert capture of the frozen large Device Settings viewport."""

import argparse
from dataclasses import asdict
import hashlib
import json
from pathlib import Path

import pyray as rl
import raylib

from openpilot.starpilot.ui.device import DeviceView
from openpilot.starpilot.ui.device_state import DeviceState
from openpilot.starpilot.ui.presentation import BitmapFonts, Profile
from openpilot.starpilot.ui.settings import SettingsView
from openpilot.starpilot.ui.settings_state import Destination, SettingsState


def digest(path: Path) -> str:
  return hashlib.sha256(path.read_bytes()).hexdigest()


def main() -> None:
  parser = argparse.ArgumentParser(description=__doc__)
  parser.add_argument("--font-directory", type=Path, required=True)
  parser.add_argument("--asset-directory", type=Path, required=True)
  parser.add_argument("--output", type=Path, required=True)
  args = parser.parse_args()
  if args.output.exists():
    raise ValueError("Refusing to overwrite Device evidence")
  args.output.mkdir(parents=True)
  width, height = Profile.LARGE.size
  rl.set_config_flags(rl.ConfigFlags.FLAG_MSAA_4X_HINT | rl.ConfigFlags.FLAG_WINDOW_HIGHDPI | rl.ConfigFlags.FLAG_WINDOW_HIDDEN)
  rl.init_window(960, 480, "Development preview — Device panel")
  if not rl.is_window_ready():
    raise RuntimeError("Unable to create native Device graphics context")
  target = rl.load_render_texture(width, height)
  try:
    if not target.id or not target.texture.id:
      raise RuntimeError("Unable to create Device framebuffer")
    with BitmapFonts(Profile.LARGE, args.font_directory) as fonts:
      settings = SettingsView(fonts, args.asset_directory)
      try:
        device = DeviceView(fonts)
        state = DeviceState()
        for _ in range(18):
          rl.begin_texture_mode(target)
          try:
            rl.clear_background(rl.BLACK)
            device.render(state)
            settings.render_rail(SettingsState(), selected=Destination.DEVICE)
          finally:
            rl.end_texture_mode()
        pixels = rl.load_image_from_texture(target.texture)
        try:
          if pixels.data == rl.ffi.NULL:
            raise RuntimeError("Unable to read Device framebuffer")
          rl.image_format(pixels, rl.PixelFormat.PIXELFORMAT_UNCOMPRESSED_R8G8B8A8)
          rl.image_flip_vertical(pixels)
          if not rl.export_image(pixels, str(args.output / "large.png")):
            raise RuntimeError("Unable to export Device framebuffer")
          rgba_sha = hashlib.sha256(bytes(rl.ffi.buffer(pixels.data, width * height * 4))).hexdigest()
        finally:
          if pixels.data != rl.ffi.NULL:
            rl.unload_image(pixels)
        module = Path(__file__).parent
        report = {
          "profile": Profile.LARGE,
          "dimensions": [width, height],
          "development_only": True,
          "state": asdict(state),
          "rgba_sha256": rgba_sha,
          "png_sha256": digest(args.output / "large.png"),
          "native_raylib_sha256": digest(Path(raylib._cffi.__file__)),
          "source_sha256": {name: digest(module / name) for name in (
            "device.py", "device_state.py", "preview_device.py", "settings.py", "settings_assets.py", "presentation.py",
            "settings-assets.json", "bitmap-fonts.json", "sora-brand-font.json", "dinish-speed-font.json")},
          "asset_sha256": {"icons/backspace.png": digest(args.asset_directory / "icons/backspace.png")},
          "font_sha256": {path.name: digest(path) for path in sorted(args.font_directory.glob("*"))
                          if path.name in {"Inter-Regular.fnt", "Inter-Regular.png", "Inter-Medium.fnt", "Inter-Medium.png",
                                           "Inter-Bold.fnt", "Inter-Bold.png", "Inter-SemiBold.fnt", "Inter-SemiBold.png",
                                           "unifont.fnt", "unifont.png"}} |
                         {name: digest(module / "assets/fonts" / name) for name in ("Sora-800.fnt", "Sora-800.png", "DINish-Speed.fnt", "DINish-Speed.png")},
          "scope": "large captured viewport only; no compact Device scene, scrolling, services, or action execution",
        }
        (args.output / "large.json").write_text(json.dumps(report, indent=2) + "\n")
      finally:
        settings.close()
  finally:
    if target.id:
      rl.unload_render_texture(target)
    rl.close_window()


if __name__ == "__main__":
  main()