#!/usr/bin/env bash
# Build the PDF crate (core/pdf) for wazero, the same way build-wasm.sh
# builds the CRDT core: plain wasm32 with a C ABI, no wasm-bindgen, no
# wasm-pack, no host imports.
set -euo pipefail
cd "$(dirname "$0")/.."
cargo clippy --manifest-path core/pdf/Cargo.toml --all-targets -- -D warnings
# --lib only: the module shipped to wazero is the library crate.
#
# --remap-path-prefix (x2): see build-wasm.sh. rustc bakes the absolute
# path of every panic site into the binary; remapping the registry and
# this checkout to fixed placeholders makes the artefact reproducible
# across machines and $HOMEs, which the gate's byte comparison against
# the committed copy depends on.
#
# The root .cargo/config.toml's rustflags for this target (the getrandom
# custom-backend cfg) are replaced, not extended, by an env RUSTFLAGS, so
# they are repeated here. This crate has no getrandom in its graph (see
# core/pdf/Cargo.toml) and the cfg is inert for it, but keeping the flags
# identical to build-wasm.sh means the two modules are built under one set
# of rules rather than two that could drift.
registry_root="${CARGO_HOME:-$HOME/.cargo}/registry/src"
workspace_root="$(pwd)"
export RUSTFLAGS="--cfg getrandom_backend=\"custom\" --remap-path-prefix=${registry_root}=/cargo-registry-src --remap-path-prefix=${workspace_root}=/slides-pdf"
cargo build --release --manifest-path core/pdf/Cargo.toml --target wasm32-unknown-unknown --locked --lib
out="core/pdf/target/wasm32-unknown-unknown/release/slides_pdf.wasm"
[ -f "$out" ] || { echo "build-pdf-wasm: no artifact at $out" >&2; exit 1; }
echo "$out ($(wc -c < "$out") bytes)"