#!/usr/bin/env perl

# install - Installation wizard.
# Copyright (C) 2010-2011 Xelhua Development Group, et al.
# This program is free software; rights to this code are stated in doc/LICENSE.
package Install;
use strict;
use warnings;
use Getopt::Long;
use English qw(-no_match_vars);
use FindBin qw($Bin);
use File::Copy;
use File::Path qw(make_path remove_tree);
our $Bin = $Bin;
BEGIN { unshift(@INC, "$Bin/lib") }
use Lib::Install;

# Installation script.
our $VERSION = 1.00;
our $ERROR = 0;

# Store the arguments passed to us.
my ($opt_help, $opt_syswide, $PREFIX, $feature_nossl, $feature_sasl, $feature_ipv6, $feature_mysql, $feature_pgsql);
GetOptions(
    '--disable-ssl'    => \$feature_nossl,
    '--enable-sasl'    => \$feature_sasl,
    '--enable-ipv6'    => \$feature_ipv6,
    '--with-mysql'     => \$feature_mysql,
    '--with-pgsql'     => \$feature_pgsql,
    '--prefix=s'       => \$PREFIX,
    '--syswide'        => \$opt_syswide,
    '--help'           => \$opt_help,
);

# If --help was passed.
if ($opt_help) {
    print <<"HELP";

Auto IRC Bot Installation Wizard (v1.00).
Usage: perl install [options]

Options:
    --disable-ssl  Disables SSL support.
    --enable-sasl  Enables SASL support.
    --enable-ipv6  Enables IPv6 support.
    --with-mysql   Uses MySQL instead of SQLite.
    --with-pgsql   Uses PostgreSQL instead of SQLite.
    --syswide      Prefixes bin/ files with auto- (excluding `auto` itself), as
                   well as installs build/ to lib/ instead. Always use this
                   when installing to /usr.

    --prefix=PREFIX  Installs files to PREFIX
                     [$Bin]

HELP
    exit 1;
}

# Set features.
my $features = 'base';
$features .= ' ssl' unless $feature_nossl;
$features .= ' sasl' if $feature_sasl;
$features .= ' ipv6' if $feature_ipv6;
if ($feature_mysql) { $features .= ' mysql' }
elsif ($feature_pgsql) { $features .= ' pgsql' }
else { $features .= ' sqlite' }

# Where to install.
my $upref;
if (!$PREFIX) {
    $PREFIX = $Bin;
    $upref = 0;
}
else { $upref = 1 }

# Adjust installation to be more appropriate for system-wide installs.
my $libbuild = 0;
if ($opt_syswide) { $libbuild = 1 }


# Check Perl version.
println "Checking Perl version..... $^V";
eval {
    require 5.010_000;
} or println "This version of Perl is too old. Upgrade to Perl 5.10.0 or later and try again." and exit;

# Check operating system.
print "Checking operating system..... $OSNAME - ";
if ($OSNAME =~ /dos/i) {
    print "DOS is not supported.\r\n";
    exit;
}
elsif ($OSNAME eq "MSWin32") {
    print "OK\r\n";
}
elsif ($OSNAME eq "NetWare") {
    print "NetWare is not supported.\r\n";
    exit;
}
elsif ($OSNAME eq "linux") {
    print "OK\n";
}
elsif ($OSNAME eq "os2") {
    print "IBM OS/2 is not supported.\r\n";
    exit;
}
elsif ($OSNAME =~ /mac/i or $OSNAME =~ /darwin/i) {
    print "OK\r";
}
elsif ($OSNAME eq "freebsd") {
    print "OK\n";
}
elsif ($OSNAME eq "openbsd") {
    print "OK\n";
}
elsif ($OSNAME eq "solaris") {
    print "OK\n";
}
else {
    print "Unknown operating system. Contact support.\r\n";
    exit;
}    	

# Check for Perl core modules.
println "Checking for core Perl modules.....";
checkcore();
println "\0";
if ($ERROR) {
    println "This Perl install is missing some core modules. Consider reinstalling Perl.";
    exit;
}
else {
    println "All good.";
}

# Check for required CPAN modules.
println "\0";
println 'Checking for required CPAN modules......';
println "\0";
#modfind("Mouse");
modfind('DBI');
modfind('DBD::SQLite') if $features =~ /sqlite/;
modfind('DBD::mysql') if $features =~ /mysql/;
modfind('DBD::Pg') if $features =~ /pgsql/;
modfind('Class::Unload');
modfind('IO::Socket::INET6') if $features =~ /ipv6/;
modfind('IO::Socket::SSL') if $features =~ /ssl/;
modfind('MIME::Base64') if $features =~ /sasl/;
println "\0";

if ($ERROR) {
    println "Failed to install. Please install the missing CPAN modules and try again.";
    exit;
}
else {
    println "All good.";
}

# Create build.
println "\0";
println "Building.....";
if (!-d $PREFIX) { make_path($PREFIX) }
my $libdir;
if ($libbuild) { $libdir = "$PREFIX/lib/autobot/3.0.0" }
else { $libdir = "$PREFIX/lib" }
my $builddir;
if ($libbuild) { $builddir = "$libdir/build" }
else { $builddir = "$PREFIX/build" }
if (!-d $builddir) { make_path($builddir) }
build($features, $builddir, $opt_syswide);

# Install.
if ($upref) {
    require File::Copy::Recursive;
    File::Copy::Recursive->import('rcopy');
    my $langdir;
    if ($libbuild) { $langdir = "$libdir/lang" }
    else { $langdir = "$PREFIX/lang" }
    my $moddir;
    if ($libbuild) { $moddir = "$libdir/modules" }
    else { $moddir = "$PREFIX/modules" }
    my $distdir;
    if ($libbuild) { $distdir = "$libdir/dist" }
    else { $distdir = "$PREFIX/dist" }
    println "Installing.....";
    if (!-d "$PREFIX/bin") { make_path("$PREFIX/bin") }
    if (!-d $libdir) { make_path($libdir) }
    if (!-d $langdir) { make_path($langdir) }
    if (!-d $moddir) { make_path($moddir) }
    if (!-d $distdir) { make_path($distdir) }

    my $bgenssl = 'genssl';
    my $bbuildmod = 'buildmod';
    my $bwizard = 'wizard';
    if ($libbuild) {
        $bgenssl = "auto-$bgenssl";
        $bbuildmod = "auto-$bbuildmod";
        $bwizard = "auto-$bwizard";
    }
    copy("$Bin/bin/auto", "$PREFIX/bin/auto");
    copy("$Bin/bin/buildmod", "$PREFIX/bin/$bbuildmod");
    copy("$Bin/bin/genssl", "$PREFIX/bin/$bgenssl");
    copy("$Bin/bin/wizard", "$PREFIX/bin/$bwizard");
    chmod 0755, "$PREFIX/bin/auto", "$PREFIX/bin/$bgenssl", "$PREFIX/bin/$bbuildmod", "$PREFIX/bin/$bwizard";
    rcopy("$Bin/lib/*", "$libdir/");
    rcopy("$Bin/lang/*", "$langdir/");
    rcopy("$Bin/modules/*", "$moddir/");
    copy("$Bin/etc/example.conf", "$distdir/");
    remove_tree("$libdir/File");
}

println 'Done.';

println q{};
if ($libbuild) {
    println 'To install modules, run the auto-buildmod utility on a module.';
}
else { installmods($PREFIX) }
println q{};

# Success!
println "Done. Auto successfully installed.";

# vim: set ai et sw=4 ts=4: