#!/usr/bin/env perl
use 5.010001;
use warnings;
use strict;

our $VERSION = 'v2.3';

use FindBin;
use lib "$FindBin::Bin/../lib/perl5";
use MIME::Base64;


main(@ARGV) if !caller;


sub err { die "narada-new-1: @_\n" };

sub main {
    die "Usage: narada-new-1 [/path/to/project]\n" if @_ > 1;
    my $dst = @_ ? $_[0] : q{.};

    # Prepare empty destination directory.
    if (!-e $dst) {
        mkdir $dst                      or err "mkdir: $!";
    }
    else {
        -d $dst                         or err "Not a directory: $dst";
        opendir my $d, $dst             or err "opendir: $!";
        (my @tmp = readdir $d) == 2     or err "Directory not empty: $dst";
        closedir $d                     or err "closedir: $!";
    }

    # Unpack project skeleton from DATA.
    local $/;
    my $skel = <DATA>;
    local $SIG{PIPE} = 'IGNORE';
    my $TAR = (grep {-x "$_/gtar"} split /:/ms, $ENV{PATH}) ? 'gtar' : 'tar';
    open my $unpack, q{|-}, "$TAR xpf - -C \Q$dst\E"
                                        or err 'Unpack failed';
    print {$unpack} decode_base64($skel);
    close $unpack                       or err 'Unpack failed';

    # Enter project.
    chdir $dst                          or err "chdir: $!";

    require Narada::Config;
    Narada::Config->import(qw( set_config ));

    # Setup project version.
    my ($project) = `pwd` =~ m{([^/]+?)\n\z}xms
                                        or err 'Unable to detect project name';
    my $version = "$project-0.0.000";
    set_config('version', "$version\n");

    if (exists $ENV{NARADA_USER}) {
        set_config("patch/send/$ENV{USER}", $ENV{NARADA_USER});
    }

    # Initialize patch system.
    system $TAR.' cf - ./ --exclude var/patch/.prev | tar xpf - -C var/patch/.prev/';

    # Make initial archive for installing this project elsewhere.
    system 'narada-backup';
    rename 'var/backup/full.tar', "var/patch/$version.tar" or err "rename: $!";

    return;
}


1; # Magic true value required at end of module
## no critic (RequirePodAtEnd)

=encoding utf8

=head1 NAME

narada-new-1 - creates a skeleton project based on Narada framework v1.x


=head1 VERSION

This document describes narada-new-1 version v2.3=head1 USAGE

    narada-new-1 [/path/to/project]


=head1 DESCRIPTION

B<WARNING:> This script shouldn't be used for new projects, use narada-new
instead. This script provided only for testing compatibility with Narada
v1.x projects.

This script help you create skeleton project directory for using Narada
framework.

Target directory shouldn't exists or must be empty.

If target directory doesn't exists - it will be created (parent
directory must exists).

If executed without param will create skeleton
project in current directory, which must be empty.

Target directory become "project root directory", and all other `narada-*`
scripts must be executed in this directory.

=head2 INITIAL SETUP

File C<config/version> will be initialized with value "PROJECTNAME-0.0.000",
where PROJECTNAME is target directory name.

Will create C<var/patch/PROJECTNAME-0.0.000.tar> with backup of current
project. This backup should be used when installing this project elsewhere:

    unpack backup in empty project root
    (if needed) unpack backup in var/patch/.prev/
    put all updates into var/patch/
    run narada-patch
    setup config/* as needed for this installation


=head1 DIAGNOSTICS

=over

=item C<< narada-new-1: mkdir: %s >>

Target directory wasn't exists and mkdir failed (probably parent directory
doesn't exist or have wrong permissions).

=item C<< narada-new-1: not a directory: %s >>

Script's param point to existing file.

=item C<< narada-new-1: opendir: %s >>

Target directory exists, but can't be read (probably have wrong permissions).

=item C<< narada-new-1: directory not empty: %s >>

Target directory exists, but not empty.

=item C<< narada-new-1: unpack failed >>

Script failed to unpack skeleton directory. Most likely reason - target
directory doesn't writable. While unpacking it use `tar`, so maybe there
some issue with it. Or this script was damaged (reinstall recommended).

=item C<< narada-new-1: unable to detect project name >>

Failed to setup 'config/version' file using project directory name as
default project name. Probably some issue with `pwd` command or unusual
symbols in project directory name (\n for example).

=item C<< narada-new-1: closedir: %s >>

=item C<< narada-new-1: chdir: %s >>

Internal error.

=back


=head1 CONFIGURATION AND ENVIRONMENT

narada-new-1 requires no configuration files or environment variables.


=head1 SUPPORT

=head2 Bugs / Feature Requests

Please report any bugs or feature requests through the issue tracker
at L<https://github.com/powerman/Narada/issues>.
You will be notified automatically of any progress on your issue.

=head2 Source Code

This is open source software. The code repository is available for
public review and contribution under the terms of the license.
Feel free to fork the repository and submit pull requests.

L<https://github.com/powerman/Narada>

    git clone https://github.com/powerman/Narada.git

=head2 Resources

=over

=item * MetaCPAN Search

L<https://metacpan.org/search?q=Narada>

=item * CPAN Ratings

L<http://cpanratings.perl.org/dist/Narada>

=item * AnnoCPAN: Annotated CPAN documentation

L<http://annocpan.org/dist/Narada>

=item * CPAN Testers Matrix

L<http://matrix.cpantesters.org/?dist=Narada>

=item * CPANTS: A CPAN Testing Service (Kwalitee)

L<http://cpants.cpanauthors.org/dist/Narada>

=back


=head1 AUTHOR

Alex Efros  E<lt>powerman@cpan.orgE<gt>


=head1 COPYRIGHT AND LICENSE

This software is Copyright (c) 2008-2015 by Alex Efros E<lt>powerman@cpan.orgE<gt>.

This is free software, licensed under:

  The MIT (X11) License


=cut