#!/usr/bin/env bash
# Set up picologic development environment
# Downloads oss-cad-suite and installs Python dependencies

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
OSS_DIR="$SCRIPT_DIR/oss-cad-suite"

if [ -d "$OSS_DIR" ] && [ -f "$OSS_DIR/environment" ]; then
    echo "✓ oss-cad-suite already installed at $OSS_DIR"
else
    echo "Downloading oss-cad-suite for macOS ARM64..."
    RELEASE=$(curl -s "https://api.github.com/repos/YosysHQ/oss-cad-suite-build/releases/latest" | python3 -c "import sys,json; print(json.load(sys.stdin)['tag_name'])")
    URL="https://github.com/YosysHQ/oss-cad-suite-build/releases/download/${RELEASE}/oss-cad-suite-darwin-arm64-${RELEASE//-/}.tgz"
    echo "  Release: $RELEASE"
    echo "  URL: $URL"
    curl -L -o /tmp/oss-cad-suite.tgz "$URL" --progress-bar
    echo "Extracting..."
    tar xzf /tmp/oss-cad-suite.tgz -C "$SCRIPT_DIR"
    rm /tmp/oss-cad-suite.tgz
    echo "✓ oss-cad-suite installed"
fi

echo ""
echo "Activating environment..."
cd "$OSS_DIR" && source environment

echo ""
echo "Installing Python dependencies..."
python3 -m pip install --quiet "amaranth==0.4.5" "luna-usb==0.1.1" pyvcd pyserial pytest 2>&1 | grep -v "DEPRECATION\|notice"

echo ""
echo "Verifying toolchain..."
echo "  yosys:     $(yosys --version 2>&1 | head -1)"
echo "  nextpnr:   $(nextpnr-ecp5 --version 2>&1 | head -1)"
echo "  ecppack:   $(ecppack --version 2>&1 | head -1)"
echo "  amaranth:  $(python3 -c 'import amaranth; print(amaranth.__version__)')"
echo "  luna:      $(python3 -c 'from luna.gateware.usb.usb2.device import USBDevice; print("OK")')"

echo ""
echo "✓ Toolchain ready!"
echo ""
echo "To activate in new shells:"
echo "  cd $OSS_DIR && source environment"
echo ""
echo "To build gateware:"
echo "  cd $SCRIPT_DIR && ./scripts/build.sh"