package Pear::LocalLoop::Controller::Admin::Reports;
use Mojo::Base 'Mojolicious::Controller';

use Mojo::JSON qw/ encode_json /;

sub transaction_data {
    my $c = shift;

    my $quantised_column = 'quantised_hours';
    if ( defined $c->param('scale') && $c->param('scale') eq 'days' ) {
        $quantised_column = 'quantised_days';
    }

    my $driver = $c->schema->storage->dbh->{Driver}->{Name};
    my $transaction_rs =
      $c->schema->resultset( 'ViewQuantisedTransaction' . $driver )->search(
        {},
        {
            columns => [
                {
                    quantised    => $quantised_column,
                    count        => \"COUNT(*)",
                    sum_distance => $c->pg_or_sqlite(
                        'SUM("me"."distance")', 'SUM("me"."distance")',
                    ),
                    average_distance => $c->pg_or_sqlite(
                        'AVG("me"."distance")', 'AVG("me"."distance")',
                    ),
                    sum_value => $c->pg_or_sqlite(
                        'SUM("me"."value")', 'SUM("me"."value")',
                    ),
                    average_value => $c->pg_or_sqlite(
                        'AVG("me"."value")', 'AVG("me"."value")',
                    ),
                }
            ],
            group_by => $quantised_column,
            order_by => { '-asc' => $quantised_column },
        }
      );

    my $transaction_data = [
        map {
            my $quantised = $c->db_datetime_parser->parse_datetime(
                $_->get_column('quantised') );
            {
                sum_value     => ( $_->get_column('sum_value')     || 0 ) * 1,
                sum_distance  => ( $_->get_column('sum_distance')  || 0 ) * 1,
                average_value => ( $_->get_column('average_value') || 0 ) * 1,
                average_distance => ( $_->get_column('average_distance') || 0 )
                  * 1,
                count     => $_->get_column('count'),
                quantised => $c->format_iso_datetime($quantised),
            }
        } $transaction_rs->all
    ];

    $c->respond_to(
        json => { json           => { data => $transaction_data } },
        html => { transaction_rs => encode_json($transaction_data) },
    );
}

sub pg_or_sqlite {
    my ( $c, $pg_sql, $sqlite_sql ) = @_;

    my $driver = $c->schema->storage->dbh->{Driver}->{Name};

    if ( $driver eq 'Pg' ) {
        return \$pg_sql;
    }
    elsif ( $driver eq 'SQLite' ) {
        return \$sqlite_sql;
    }
    else {
        $c->app->log->warn('Unknown Driver Used');
        return;
    }
}

1;