{
  stdenv,
  librsvg,
}:

# Branding SVG/PNG family + claude prompts, split out from the rust
# workspace so a tweak here doesn't invalidate the rust cargo cache.
# Rationale + agent-configs PNG rendering: docs/gotchas.md::Split asset
# derivations away from the rust workspace.
#
# Output layout:
#   $out/share/hyperhive/branding/{hyperhive,agent-configs}.{svg,png}
#   $out/share/hyperhive/prompts/{system.md, claude-settings.json}
#
# The repo docs/ tree is a SEPARATE derivation (./reference-docs.nix)
# so agents can consume the docs without the branding+prompt assets and
# the website repo can reuse it — see that file.

stdenv.mkDerivation {
  pname = "hyperhive-assets";
  version = "0.1.0";
  # Narrow `srcs` (branding/ + hive-agent/prompts/) is what decouples
  # this derivation's input hash from the rest of the tree.
  srcs = [
    ../../branding
    ../../hive-agent/prompts
  ];
  unpackPhase = ''
    runHook preUnpack
    cp -r ${../../branding} branding
    cp -r ${../../hive-agent/prompts} prompts
    chmod -R u+w branding prompts
    runHook postUnpack
  '';

  nativeBuildInputs = [ librsvg ];

  # 300×300 matches branding/hyperhive.png — the size Forgejo's avatar
  # endpoint accepts without resampling on upload.
  buildPhase = ''
    runHook preBuild
    rsvg-convert --width 300 --height 300 \
      -o branding/agent-configs.png \
      branding/agent-configs.svg
    runHook postBuild
  '';

  installPhase = ''
    runHook preInstall
    mkdir -p $out/share/hyperhive
    cp -r branding $out/share/hyperhive/branding
    cp -r prompts $out/share/hyperhive/prompts
    runHook postInstall
  '';

  # Pure data — no executables to fixup, no shared libs to patchelf.
  dontFixup = true;

  meta = {
    description = "hyperhive static assets (branding + claude prompts)";
    homepage = "https://forge.darkest.space/hyperhive/hyperhive";
  };
}