#!/bin/bash
# Mole - Main Entry Point
# A comprehensive macOS maintenance tool
#
# 🧹 Clean - Remove junk files and optimize system
# 🗑️  Uninstall - Remove applications completely
#
# Usage:
#   ./mole                         # Interactive main menu
#   ./mole clean                   # Direct clean mode
#   ./mole uninstall               # Direct uninstall mode
#   ./mole --help                  # Show help

set -euo pipefail

# Get script directory
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# Source common functions
source "$SCRIPT_DIR/lib/common.sh"

# Version info
VERSION="1.0.0"
MOLE_TAGLINE="Dig deep like a mole to clean your Mac."

show_brand_banner() {
    printf '%b🦡 %bMOLE%b — %b%s%b\n' \
        "$PURPLE" "$BLUE" "$NC" "$GREEN" "$MOLE_TAGLINE" "$NC"
}

show_help() {
    show_brand_banner
    echo
    printf "%s%s%s\n" "$BLUE" "USAGE" "$NC"
    printf "  %s%s%s [command]\n\n" "$GREEN" "mole" "$NC"

    printf "%s%s%s\n" "$BLUE" "COMMANDS" "$NC"
    printf "  %s%-16s%s %s\n" "$GREEN" "mole" "$NC" "Interactive main menu"
    printf "  %s%-16s%s %s\n" "$GREEN" "mole clean" "$NC" "Deeper system cleanup"
    printf "  %s%-16s%s %s\n" "$GREEN" "mole uninstall" "$NC" "Remove applications completely"
    printf "  %s%-16s%s %s\n" "$GREEN" "mole --help" "$NC" "Show this help message"

    printf "\n%s%s%s\n" "$BLUE" "MORE" "$NC"
    printf "  https://github.com/tw93/mole\n"
}

show_main_menu() {
    local selected="${1:-1}"
    local redraw_full="${2:-true}"

    if [[ "$redraw_full" == "true" ]]; then
        echo ""
        show_brand_banner
        echo ""
    fi

    # Save cursor position before printing menu items
    printf '\033[s'

    show_menu_option 1 "Clean System - Remove junk files and optimize" "$([[ $selected -eq 1 ]] && echo true || echo false)"
    show_menu_option 2 "Uninstall Apps - Remove applications completely" "$([[ $selected -eq 2 ]] && echo true || echo false)"
    show_menu_option 3 "Help & Information - Usage guide and tips" "$([[ $selected -eq 3 ]] && echo true || echo false)"
    show_menu_option 4 "Exit - Close Mole" "$([[ $selected -eq 4 ]] && echo true || echo false)"

    if [[ "$redraw_full" == "true" ]]; then
        echo ""
        echo -e "${BLUE}Use ↑/↓ arrows to navigate, ENTER to select, ESC/q to quit${NC}"
    fi
}

interactive_main_menu() {
    local current_option=1
    local total_options=4
    local first_draw=true

    # Set up signal trapping to handle Ctrl+C gracefully
    trap 'echo ""; echo "Thank you for using Mole!"; exit 0' INT

    cleanup_menu_display() {
        printf '\033[u\033[J'
    }

    while true; do
        if [[ "$first_draw" == "true" ]]; then
            show_main_menu $current_option true
            first_draw=false
        else
            # Restore cursor to saved position and only redraw menu items
            printf '\033[u'
            show_main_menu $current_option false
        fi

        # Use a more robust way to capture key input
        local key
        key=$(read_key)

        # Check if read_key failed
        if [[ $? -ne 0 ]]; then
            continue
        fi

        case "$key" in
            "UP")
                ((current_option > 1)) && ((current_option--))
                ;;
            "DOWN")
                ((current_option < total_options)) && ((current_option++))
                ;;
            "ENTER")
                cleanup_menu_display
                case $current_option in
                    1)
                        exec "$SCRIPT_DIR/bin/clean.sh"
                        ;;
                    2)
                        exec "$SCRIPT_DIR/bin/uninstall.sh"
                        ;;
                    3)
                        clear_screen
                        show_help
                        exit 0
                        ;;
                    4)
                        clear_screen
                        echo ""
                        echo "Thank you for using Mole!"
                        exit 0
                        ;;
                esac
                ;;
            "QUIT"|"ESC")
                cleanup_menu_display
                clear_screen
                echo ""
                echo "Thank you for using Mole!"
                exit 0
                ;;
            "1"|"2"|"3"|"4")
                cleanup_menu_display
                case $key in
                    1) exec "$SCRIPT_DIR/bin/clean.sh" ;;
                    2) exec "$SCRIPT_DIR/bin/uninstall.sh" ;;
                    3) clear_screen; show_help; exit 0 ;;
                    4) clear_screen; echo ""; echo "Thank you for using Mole!"; exit 0 ;;
                esac
                ;;
            *)
                # Ignore unrecognized keys
                ;;
        esac
    done
}

main() {
    case "${1:-""}" in
        "clean")
            exec "$SCRIPT_DIR/bin/clean.sh"
            ;;
        "uninstall")
            exec "$SCRIPT_DIR/bin/uninstall.sh"
            ;;
        "help"|"--help"|"-h")
            show_help
            exit 0
            ;;
        "")
            interactive_main_menu
            ;;
        *)
            echo "Unknown command: $1"
            echo "Use 'mole --help' for usage information."
            exit 1
            ;;
    esac
}

main "$@"