#!/usr/bin/env bash
set -euo pipefail

cd "$(dirname "$0")/.."

usage() {
    cat <<EOF
usage: scripts/build.sh <command>

commands:
  debug     configure, build, and test into build/
  release   configure, build, and test into build-release/
  asan      configure, build, and test with ASan and UBSan into build-asan/
  wasm      configure, build, and test with Emscripten into build-wasm/
  all       debug, asan, then wasm
  clean     remove all build directories
EOF
}

build() {
    local dir=$1 launcher=$2
    shift 2
    $launcher cmake -S . -B "$dir" -G Ninja "$@"
    cmake --build "$dir"
    ctest --test-dir "$dir" --output-on-failure
}

link_compile_commands() {
    ln -sf build/compile_commands.json compile_commands.json
}

case "${1:-}" in
    debug)
        build build "" -DCMAKE_BUILD_TYPE=Debug
        link_compile_commands
        ;;
    release)
        build build-release "" -DCMAKE_BUILD_TYPE=Release
        ;;
    asan)
        build build-asan "" -DCMAKE_BUILD_TYPE=Debug -DREGOLITH_SANITIZE=ON
        ;;
    wasm)
        build build-wasm emcmake -DCMAKE_BUILD_TYPE=Debug
        ;;
    all)
        "$0" debug
        "$0" asan
        "$0" wasm
        ;;
    clean)
        rm -rf build build-release build-asan build-wasm compile_commands.json
        ;;
    *)
        usage
        exit 1
        ;;
esac