# Shared crane wiring for the rust workspace: the cargo source
# filter, the once-built dependency artifacts, and the native build
# inputs every rust derivation (packages + checks) consumes.
# Imported per system from flake.nix.
{ pkgs, craneLib }:
rec {
  # Shared between buildDepsOnly + buildPackage + cargoClippy/cargoTest
  # so every derivation in the chain sees the same toolchain shape.
  # git: hive-c0re's `lifecycle::tests::setup_proposed_*` shell out to
  # `git init` + commit under `cargo test` in the sandbox.
  # sqlite: matrix-sdk's `sqlite` feature (`hive-matrix-mcp` workspace
  # member) — the matrix-sdk-sqlite + rusqlite stack links against
  # system libsqlite3 by default.
  # cmake: builds `aws-lc-sys` (BoringSSL) from source — pulled in by
  # the `rustls` (aws-lc-rs) crypto provider under the OTLP/reqwest
  # stack in `hive-metric`.
  nativeBuildInputs = [
    pkgs.git
    pkgs.sqlite
    pkgs.pkg-config
    pkgs.cmake
  ];

  # Narrowed source tree the rust derivations consume.
  # `cleanCargoSource` is crane's standard "everything cargo cares
  # about" filter (Cargo.toml/Cargo.lock + *.rs). All non-rust runtime
  # assets — branding + the claude system prompt template +
  # claude-settings.json — live in the separate `hyperhive-assets`
  # derivation and are loaded by the binaries at runtime from
  # `$HIVE_ASSETS_DIR`. The unit tests in `hive-ag3nt::prompt` read
  # `prompts/system.md` directly from the workspace tree at *test*
  # runtime (via `env!("CARGO_MANIFEST_DIR")` — a compile-time string,
  # no file open at compile), so the prompt template doesn't have to
  # be in this fileset to keep `cargo test` honest. Net effect: tweaks
  # to any non-`*.rs` / non-`Cargo.*` file (README, branding, nix
  # modules, frontend tree, OR `hive-ag3nt/prompts/*`) do NOT bust
  # this src hash, so the rust derivations stay fully cached.
  cleanSrc = craneLib.cleanCargoSource ../.;

  # Build the workspace's dependency tree once, cached as its own
  # derivation. Package builds and checks reuse this via
  # `inherit cargoArtifacts;` so a workspace-only edit doesn't rebuild
  # deps. All consumers use the same `cleanSrc` so the input hash
  # stays consistent across the chain.
  cargoArtifacts = craneLib.buildDepsOnly {
    src = cleanSrc;
    # Workspace Cargo.toml is virtual (no `[package].name`), so crane
    # can't auto-derive a name. Spell it out explicitly — keeps the
    # derivation name stable across crane bumps + silences the
    # placeholder warning. Same `pname` for the dep + check
    # derivations so they share a clean naming family.
    pname = "hyperhive-workspace";
    version = "0.1.0";
    inherit nativeBuildInputs;
  };
}