#!/bin/bash
# Install git hooks for ptprnt repository

set -e

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

# Get the root directory of the git repository
ROOT_DIR=$(git rev-parse --show-toplevel 2>/dev/null)

if [ -z "$ROOT_DIR" ]; then
    echo -e "${RED}Error: Not in a git repository${NC}"
    exit 1
fi

HOOKS_SOURCE_DIR="$ROOT_DIR/hooks"
HOOKS_TARGET_DIR="$ROOT_DIR/.git/hooks"

echo "Installing git hooks..."
echo "  Source: $HOOKS_SOURCE_DIR"
echo "  Target: $HOOKS_TARGET_DIR"
echo ""

# Check if hooks directory exists
if [ ! -d "$HOOKS_SOURCE_DIR" ]; then
    echo -e "${RED}Error: Hooks source directory not found: $HOOKS_SOURCE_DIR${NC}"
    exit 1
fi

# Check if .git/hooks directory exists
if [ ! -d "$HOOKS_TARGET_DIR" ]; then
    echo -e "${RED}Error: Git hooks directory not found: $HOOKS_TARGET_DIR${NC}"
    exit 1
fi

# Install each hook
installed_count=0
for hook_file in "$HOOKS_SOURCE_DIR"/*; do
    # Skip the install script itself
    if [[ "$(basename "$hook_file")" == "install_hooks.sh" ]]; then
        continue
    fi

    # Skip if not a file
    if [ ! -f "$hook_file" ]; then
        continue
    fi

    hook_name=$(basename "$hook_file")
    target_file="$HOOKS_TARGET_DIR/$hook_name"

    # Check if hook already exists
    if [ -f "$target_file" ]; then
        echo -e "${YELLOW}Warning: Hook already exists: $hook_name${NC}"
        read -p "  Overwrite? (y/N) " -n 1 -r
        echo
        if [[ ! $REPLY =~ ^[Yy]$ ]]; then
            echo "  Skipped: $hook_name"
            continue
        fi
    fi

    # Copy and make executable
    cp "$hook_file" "$target_file"
    chmod +x "$target_file"
    echo -e "${GREEN}✓${NC} Installed: $hook_name"
    ((installed_count++))
done

echo ""
if [ $installed_count -eq 0 ]; then
    echo -e "${YELLOW}No hooks were installed${NC}"
else
    echo -e "${GREEN}Successfully installed $installed_count hook(s)${NC}"
fi

# Verify update_copyright.sh exists and is executable
if [ -f "$ROOT_DIR/scripts/update_copyright.sh" ]; then
    if [ ! -x "$ROOT_DIR/scripts/update_copyright.sh" ]; then
        echo ""
        echo -e "${YELLOW}Making update_copyright.sh executable...${NC}"
        chmod +x "$ROOT_DIR/scripts/update_copyright.sh"
        echo -e "${GREEN}✓${NC} update_copyright.sh is now executable"
    fi
else
    echo ""
    echo -e "${YELLOW}Warning: scripts/update_copyright.sh not found${NC}"
    echo "  The pre-commit hook requires this script to function properly"
fi

echo ""
echo "Hook installation complete!"