#!/bin/bash
set -e

BINARY=$(cargo metadata --no-deps --format-version 1 | python3 -c "import sys,json; print(json.load(sys.stdin)['packages'][0]['name'])")
VERSION=$(cargo metadata --no-deps --format-version 1 | python3 -c "import sys,json; print(json.load(sys.stdin)['packages'][0]['version'])")
OUT_DIR="dist"

TARGETS=(
    "x86_64-unknown-linux-musl:linux-x86_64"
    "aarch64-unknown-linux-musl:linux-aarch64"
    "aarch64-apple-darwin:macos-aarch64"
)

echo "Building $BINARY v$VERSION"
echo ""

# Ensure rustup targets are installed
rustup target add \
    x86_64-unknown-linux-musl \
    aarch64-unknown-linux-musl \
    aarch64-apple-darwin 2>/dev/null

mkdir -p "$OUT_DIR"
# Clean previous release artifacts
rm -f "$OUT_DIR/$BINARY"-*

for entry in "${TARGETS[@]}"; do
    RUST_TARGET="${entry%%:*}"
    LABEL="${entry##*:}"
    ARTIFACT="$OUT_DIR/${BINARY}-${LABEL}"

    echo "── $LABEL ($RUST_TARGET)"

    case "$RUST_TARGET" in
        x86_64-unknown-linux-musl)
            CARGO_TARGET_X86_64_UNKNOWN_LINUX_MUSL_LINKER=x86_64-linux-musl-gcc \
            cargo build --release --target "$RUST_TARGET" --quiet
            ;;
        aarch64-unknown-linux-musl)
            CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_LINKER=aarch64-linux-musl-gcc \
            cargo build --release --target "$RUST_TARGET" --quiet
            ;;
        aarch64-apple-darwin)
            cargo build --release --target "$RUST_TARGET" --quiet
            ;;
    esac

    cp "target/$RUST_TARGET/release/$BINARY" "$ARTIFACT"
    SIZE=$(du -sh "$ARTIFACT" | cut -f1)
    echo "   → $ARTIFACT ($SIZE)"
done

echo ""
echo "Done. Artifacts in $OUT_DIR/:"
ls -lh "$OUT_DIR/$BINARY"-*