#!/bin/bash
# This file is part of the 64k demo project.
# Builds the final production binary with all stripping enabled.
# Usage: ./scripts/build_final.sh

set -e  # Exit on error

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
BUILD_DIR="$PROJECT_ROOT/build_final"

echo "========================================"
echo "  Building FINAL Production Binary"
echo "========================================"
echo ""
echo "This build uses:"
echo "  - DEMO_FINAL_STRIP=ON  (removes ALL error checking)"
echo "  - DEMO_STRIP_ALL=ON    (removes debug features)"
echo "  - DEMO_SIZE_OPT=ON     (maximum size optimization)"
echo ""

# Clean previous final build
if [ -d "$BUILD_DIR" ]; then
    echo "Cleaning previous final build..."
    rm -rf "$BUILD_DIR"
fi

# Create fresh build directory
mkdir -p "$BUILD_DIR"
cd "$BUILD_DIR"

# Configure with FINAL_STRIP
echo "Configuring with FINAL_STRIP..."
cmake "$PROJECT_ROOT" \
    -DDEMO_FINAL_STRIP=ON \
    -DDEMO_SIZE_OPT=ON \
    -DCMAKE_BUILD_TYPE=Release

# Build demo64k
echo ""
echo "Building demo64k..."
cmake --build . --target demo64k -j8

# Show result
echo ""
echo "========================================"
echo "  Final Build Complete!"
echo "========================================"
echo ""
echo "Binary location:"
ls -lh "$BUILD_DIR/demo64k"
echo ""

# Optional: Compare with stripped build (if exists)
STRIP_BUILD="$PROJECT_ROOT/build_strip"
if [ -f "$STRIP_BUILD/demo64k" ]; then
    FINAL_SIZE=$(stat -f%z "$BUILD_DIR/demo64k" 2>/dev/null || stat -c%s "$BUILD_DIR/demo64k")
    STRIP_SIZE=$(stat -f%z "$STRIP_BUILD/demo64k" 2>/dev/null || stat -c%s "$STRIP_BUILD/demo64k")
    SAVED=$((STRIP_SIZE - FINAL_SIZE))

    echo "Size comparison:"
    echo "  STRIP_ALL build:  $STRIP_SIZE bytes"
    echo "  FINAL_STRIP build: $FINAL_SIZE bytes"
    echo "  Saved:            $SAVED bytes"
    echo ""
fi

echo "To run: $BUILD_DIR/demo64k"
echo ""
echo "⚠️  WARNING: This build has NO error checking!"
echo "   Use only for final release, not for development/testing."