#!/bin/bash

SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"

# Exit on error
set -e

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

JOBS=4
# Determine number of CPU cores for parallel build
if command -v nproc >/dev/null 2>&1; then
    JOBS=$(nproc)
fi

# Function to print status messages
print_status() {
    echo -e "${GREEN}[*] $1${NC}"
}

print_error() {
    echo -e "${RED}[!] $1${NC}"
}

print_warning() {
    echo -e "${YELLOW}[!] $1${NC}"
}

# ensure we have latest dehydrate.
dehydrate -u

# Check if build directory exists, if not create it
if [ ! -d "build" ]; then
    print_status "Creating build directory..."
    mkdir build
fi

# Enter build directory
cd build

# Check if CMake is installed
if ! command -v cmake &> /dev/null; then
    print_error "CMake is not installed. Please install CMake first."
    exit 1
fi

# Check if Ninja is installed
if ! command -v ninja &> /dev/null; then
    print_error "Ninja is not installed. Please install Ninja first."
    exit 1
fi

# Check if ccache is installed
if ! command -v ccache &> /dev/null; then
    print_warning "ccache is not installed. Builds will be slower without it."
    print_warning "Consider installing ccache for faster builds."
fi

# Configure with CMake
print_status "Configuring with CMake..."
cmake .. -G Ninja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache

# Build the project
print_status "Building project..."
ninja -j"$JOBS"

# Check if build was successful
if [ $? -eq 0 ]; then
    print_status "Build successful!"
else
    print_error "Build failed!"
    exit 1
fi

print_status "Auto-installing dropshell locally..."
mkdir -p "${HOME}/.local/bin"
cp "$SCRIPT_DIR/build/dropshell" "${HOME}/.local/bin/dropshell"

# Return to original directory
cd ..

print_status "Build process completed!"