#!/usr/bin/perl -w
###############################################################################
=pod

=head1 NAME

mig-init - This will add or recreate tracking tables for the B<mig> toolset
to the database specified by the current mig environment.

In practice, you should invoke 'mig env use schema_name' prior to calling
B<init>

=head1 SYNOPSIS

B<mig-init>

B<mig-init> <help>

=cut

###############################################################################

use strict;
use Switch;
use Env qw(
    HOME MYSQL_HOST MYSQL_TCP_PORT MYSQL_USER MYSQL_DATABASE MYSQL_PW
    MIGSCHEMA MIGBASEWORKDIR MIGBASEGITDIR MIGGITDIR MIGWORKDIR
);
use Pod::Usage;
use DBI;
use FindBin;
my $mig_bin = "$FindBin::Bin/";
my $mig_sql = $mig_bin . "../sql/init/";
use lib "$FindBin::Bin/";
use KMig;

pod2usage(-verbose => 2) if $ARGV[0];

KMig::die_if_no_env_migschema();

if (! KMig::check_for_db_migschema()) {
    die "could not find the schema";
}

KMig::die_if_mig_tracking_table_exists();
KMig::die_if_mig_column_tracking_table_exists();
loop_through_mig_sql_templates();

exit 0;

###############################################################################

sub loop_through_mig_sql_templates {
    print "Looping through mig.d/sql/init/ templates\n";
    opendir my $dir, $mig_sql or die "Cannot open directory: $!";
    my @files = sort readdir $dir;
    closedir $dir;
    foreach my $file (@files) {
        if ($file =~ /.sql$/) {
            print "executing $file:\n";
            system( $mig_bin . "mig-sql", ('-e',"source $mig_sql$file") )
        }
    }
}