#!/bin/bash
#
# Build script for Cthulhu screen reader using Meson build system
# This script builds and installs Cthulhu locally to ~/.local
#

set -e  # Exit on error

# Colors for output (only if stdout is a terminal)
if [[ -t 1 ]]; then
    RED='\033[0;31m'
    GREEN='\033[0;32m'
    YELLOW='\033[1;33m'
    BLUE='\033[0;34m'
    NC='\033[0m' # No Color
else
    RED=''
    GREEN=''
    YELLOW=''
    BLUE=''
    NC=''
fi

echo -e "${BLUE}Cthulhu Meson Local Build Script${NC}"
echo "Building and installing Cthulhu to ~/.local"
echo "================================================"

# Check if we're in the right directory
if [[ ! -f "meson.build" ]] || [[ ! -f "src/cthulhu/cthulhu.py" ]]; then
    echo -e "${RED}Error: This script must be run from the Cthulhu source directory${NC}"
    exit 1
fi

# Check for required dependencies
echo -e "${YELLOW}Checking dependencies...${NC}"
for cmd in meson ninja python3; do
    if ! command -v "$cmd" &> /dev/null; then
        echo -e "${RED}Error: $cmd is not installed${NC}"
        echo "Please install: meson ninja python"
        exit 1
    fi
done

# Check for optional dependencies
missing_optional=()
for module in gi speech; do
    if ! python3 -c "import $module" 2>/dev/null; then
        missing_optional+=("python-$module")
    fi
done

if [[ ${#missing_optional[@]} -gt 0 ]]; then
    echo -e "${YELLOW}Warning: Optional dependencies missing: ${missing_optional[*]}${NC}"
    echo "Cthulhu may not function properly without these."
fi

# Clean any existing build directory
if [[ -d "_build" ]]; then
    echo -e "${YELLOW}Removing existing build directory...${NC}"
    rm -rf _build
fi

# Setup Meson build
echo -e "${YELLOW}Setting up Meson build...${NC}"
meson setup _build --prefix="$HOME/.local" --buildtype=debugoptimized

# Build
echo -e "${YELLOW}Building Cthulhu...${NC}"
meson compile -C _build

# Install
echo -e "${YELLOW}Installing Cthulhu to ~/.local...${NC}"
meson install -C _build

# Update desktop database and icon cache
if command -v update-desktop-database &> /dev/null; then
    echo -e "${YELLOW}Updating desktop database...${NC}"
    update-desktop-database "$HOME/.local/share/applications" 2>/dev/null || true
fi

if command -v gtk-update-icon-cache &> /dev/null; then
    echo -e "${YELLOW}Updating icon cache...${NC}"
    gtk-update-icon-cache -f -t "$HOME/.local/share/icons/hicolor" 2>/dev/null || true
fi

echo
echo -e "${GREEN}Build completed successfully!${NC}"
echo
echo "To run Cthulhu:"
echo "  ~/.local/bin/cthulhu"
echo
echo "To run Cthulhu setup:"
echo "  ~/.local/bin/cthulhu -s"
echo
echo "Build artifacts are in: _build/"
echo -e "${BLUE}To clean build artifacts, run: ${YELLOW}rm -rf _build${NC}"