#!/usr/bin/env perl

use strict;
use warnings;
use Data::Dumper;

# Launch this with 'rofi' with something like this:
#
#  % rofi -show Select -modes "Select:~/bin/rofi_menu.pl"

my $selection = $ARGV[0];

my $app = {};

if (defined $selection) {
    select_option($app, $selection);
} else {
    show_options($app);
}

# -----------
# Subroutines
# -----------
sub show_options {
    my ($app) = @_;

    my @categories = qw(Apps Tools Settings);
    print join ("\n", @categories);
}

# -----------
sub select_option {
    my ($app, $selection) = @_;

    warn "Selected: $selection\n";

    if ($selection eq 'Apps') {
        show_apps($app);
    } elsif ($selection eq 'Tools') {
        show_tools($app);
    } elsif ($selection eq 'Settings') {
        show_settings($app);
    } elsif (my ($sub_app) = $selection =~ /^Apps:(.*)/) {
        app_launch($app, $sub_app);
    } elsif (my ($sub_tool) = $selection =~ /^Tools:(.*)/) {
        tool_launch($app, $sub_tool);
    } elsif (my ($sub_setting) = $selection =~ /^Settings:(.*)/) {
        setting_launch($app, $sub_setting);
    }
}

# -----------
sub show_apps {
    my ($app) = @_;
    my @apps = qw(Gimp VSCode Antigravity Chrome);

    print join ("\n", map { "Apps:$_" } @apps);
}

# -----------
sub show_tools {
    my ($app) = @_;
    my @apps = qw(Neovide Wezterm Calculator Audio);

    print join ("\n", map { "Tools:$_" } @apps);
}

# -----------
sub show_settings {
    my ($app) = @_;
    my @apps = qw(Neovim Ghostty Git MPD ncmpcpp);

    print join ("\n", map { "Settings:$_" } @apps);
}

# -----------
sub app_launch {
    my ($app, $sub_app) = @_;

    if ($sub_app eq "Gimp") {
        launch_program($app, '/usr/bin/gimp');
    } elsif ($sub_app eq "Antigravity") {
        launch_program($app, '~/bin/dwl_antigravity');
    } elsif ($sub_app eq "VSCode") {
        launch_program($app, '/opt/vscode/VSCode-linux-x64/code',
                             '--enable-features=UseOzonePlatform,WaylandWindowDecorations',
                             '--ozone-platform-hint=auto',
                             '--unity-launch');
    } elsif ($sub_app eq "Chrome") {
        launch_program($app, 'chromium',
                             '--enable-features=UseOzonePlatform,WaylandWindowDecorations',
                             '--ozone-platform=wayland',
                             '--ozone-platform-hint=auto',
                             '--unity-launch');
    }
}

# -----------
sub tool_launch {
    my ($app, $sub_tool) = @_;

    if ($sub_tool eq "Neovide") {
        launch_program($app, 'neovide', '--fork');
    } elsif ($sub_tool eq "Wezterm") {
        launch_program($app, 'wezterm');
    } elsif ($sub_tool eq "Calculator") {
        launch_program($app, 'gnome-calculator');
    } elsif ($sub_tool eq "Audio") {
        launch_program($app, 'rofi', '-show', 'menu',
                             '-modes', 'menu:~/bin/rofi_sound.pl');
    }
}

# -----------
sub setting_launch {
    my ($app, $sub_setting) = @_;

    if ($sub_setting eq "Neovim") {
        launch_program($app, 'neovide', '--fork', '~/.config/nvim/init.lua');
    } elsif ($sub_setting eq "Ghostty") {
        launch_program($app, 'neovide', '--fork', '~/.config/ghostty/config');
    } elsif ($sub_setting eq "Git") {
        launch_program($app, 'neovide', '--fork', '~/.gitconfig');
    } elsif ($sub_setting eq "MPD") {
        launch_program($app, 'neovide', '--fork', '~/.config/mpd/mpd.conf');
    } elsif ($sub_setting eq "ncmpcpp") {
        launch_program($app, 'neovide', '--fork', '~/.config/ncmpcpp/config');
    }
}

# -----------
sub launch_program {
    my ($app, @program) = @_;

    my $prog = join(' ', @program);
    my $launch_cmd = "nohup $prog > /dev/null 2>&1 &";

    my $pid = fork();

    die "launch_program: couldn't fork: $!" unless defined $pid;

    if ($pid == 0) {
        # Child process
        # Detach from the parent process's session to survive terminal closure
        # (optional but recommended for complete daemonization)
        # Use 'setsid()' if available/needed. A simple exit of the parent may suffice.

        # Execute the new program in place of the child process
        exec($launch_cmd) or die "Couldn't exec your program: $!";
    } else {
        # Parent process
        # Parent can do other things here, or simply exit
        exit(0); # Exit the parent script
    }
}