package FixMyStreet::App::Controller::My;
use Moose;
use namespace::autoclean;

use JSON::MaybeXS;
use List::MoreUtils qw(first_index);

BEGIN { extends 'Catalyst::Controller'; }

=head1 NAME

FixMyStreet::App::Controller::My - Catalyst Controller

=head1 DESCRIPTION

Catalyst Controller.

=head1 METHODS

=cut

sub auto : Private {
    my ($self, $c) = @_;
    $c->detach( '/auth/redirect' ) unless $c->user;
    return 1;
}

=head2 index

=cut

sub my : Path : Args(0) {
    my ( $self, $c ) = @_;

    $c->forward('/auth/get_csrf_token');

    $c->stash->{problems_rs} = $c->cobrand->problems->search(
        { user_id => $c->user->id });
    $c->forward('/reports/stash_report_sort', [ 'created-desc' ]);
    $c->forward('get_problems');
    if ($c->get_param('ajax')) {
        $c->detach('/reports/ajax', [ 'my/_problem-list.html' ]);
    }
    $c->forward('get_updates');
    $c->forward('setup_page_data');
}

sub planned : Local : Args(0) {
    my ( $self, $c ) = @_;

    $c->forward('/auth/get_csrf_token');

    $c->detach('/page_error_403_access_denied', [])
        unless $c->user->has_body_permission_to('planned_reports');

    $c->stash->{problems_rs} = $c->user->active_planned_reports;
    $c->forward('planned_reorder');
    $c->forward('/reports/stash_report_sort', [ 'shortlist' ]);
    $c->forward('get_problems');
    if ($c->get_param('ajax')) {
        $c->stash->{shortlist} = $c->stash->{sort_key} eq 'shortlist';
        $c->detach('/reports/ajax', [ 'my/_problem-list.html' ]);
    }
    $c->forward('setup_page_data');
}

sub planned_reorder : Private {
    my ($self, $c) = @_;

    my @extra = grep { /^shortlist-(up|down|\d+)$/ } keys %{$c->req->params};
    return unless @extra;
    my ($reorder) = $extra[0] =~ /^shortlist-(up|down|\d+)$/;

    my @shortlist = sort by_shortlisted $c->stash->{problems_rs}->all;

    # Find where moving problem ID is
    my $id = $c->get_param('id') || return;
    my $curr_index = first_index { $_->id == $id } @shortlist;
    return unless $curr_index > -1;

    if ($reorder eq 'up' && $curr_index > 0) {
        @shortlist[$curr_index-1,$curr_index] = @shortlist[$curr_index,$curr_index-1];
    } elsif ($reorder eq 'down' && $curr_index < @shortlist-1) {
        @shortlist[$curr_index,$curr_index+1] = @shortlist[$curr_index+1,$curr_index];
    } elsif ($reorder >= 0 && $reorder <= @shortlist-1) { # Must be an index to move it
        @shortlist[$curr_index,$reorder] = @shortlist[$reorder,$curr_index];
    }

    # Store new ordering
    my $i = 1;
    foreach (@shortlist) {
        $_->set_extra_metadata('order', $i++);
        $_->update;
    }
}

sub get_problems : Private {
    my ($self, $c) = @_;

    my $p_page = $c->get_param('p') || 1;

    $c->forward( '/reports/stash_report_filter_status' );

    my $pins = [];
    my $problems = [];

    my $states = $c->stash->{filter_problem_states};
    my $params = {
        state => [ keys %$states ],
    };

    my $categories = [ $c->get_param_list('filter_category', 1) ];
    if ( @$categories ) {
        $params->{category} = $categories;
        $c->stash->{filter_category} = { map { $_ => 1 } @$categories };
    }

    my $rows = 50;
    $rows = 5000 if $c->stash->{sort_key} eq 'shortlist'; # Want all reports

    my $rs = $c->stash->{problems_rs}->search( $params, {
        order_by => $c->stash->{sort_order},
        rows => $rows,
    } )->include_comment_counts->page( $p_page );

    while ( my $problem = $rs->next ) {
        $c->stash->{has_content}++;
        push @$pins, $problem->pin_data($c, 'my', private => 1);
        push @$problems, $problem;
    }

    @$problems = sort by_shortlisted @$problems if $c->stash->{sort_key} eq 'shortlist';

    $c->stash->{problems_pager} = $rs->pager;
    $c->stash->{problems} = $problems;
    $c->stash->{pins} = $pins;
}

sub get_updates : Private {
    my ($self, $c) = @_;

    my $u_page = $c->get_param('u') || 1;
    my $rs = $c->user->comments->search(
        { state => 'confirmed' },
        {
            order_by => { -desc => 'confirmed' },
            rows => 50
        } )->page( $u_page );

    my @updates = $rs->all;
    $c->stash->{has_content} += scalar @updates;
    $c->stash->{updates} = \@updates;
    $c->stash->{updates_pager} = $rs->pager;
}

sub setup_page_data : Private {
    my ($self, $c) = @_;

    my @categories = $c->stash->{problems_rs}->search({
        state => [ FixMyStreet::DB::Result::Problem->visible_states() ],
    }, {
        columns => [ 'category', 'extra' ],
        distinct => 1,
        order_by => [ 'category' ],
    } )->all;
    $c->stash->{filter_categories} = \@categories;

    $c->stash->{page} = 'my';
    my $pins = $c->stash->{pins};
    FixMyStreet::Map::display_map(
        $c,
        latitude  => $pins->[0]{latitude},
        longitude => $pins->[0]{longitude},
        pins      => $pins,
        any_zoom  => 1,
    )
        if @$pins;

    foreach (qw(flash_message)) {
        $c->stash->{$_} = $c->flash->{$_} if $c->flash->{$_};
    }
}

sub planned_change : Path('planned/change') {
    my ($self, $c) = @_;
    $c->forward('/auth/check_csrf_token');

    $c->go('planned') if grep { /^shortlist-(up|down|\d+)$/ } keys %{$c->req->params};

    my $id = $c->get_param('id');
    my $add = $c->get_param('shortlist-add');
    my $remove = $c->get_param('shortlist-remove');

    # we can't lookup the report for removing via load_problem_or_display_error
    # as then there is no way to remove a report that has been hidden or moved
    # to another body by a category change from the shortlist.
    if ($remove) {
        my $report = $c->model('DB::Problem')->find({ id => $id })
            or $c->detach( '/page_error_404_not_found', [ _('Unknown problem ID') ] );
        $c->user->remove_from_planned_reports($report);
    } elsif ($add) {
        $c->forward( '/report/load_problem_or_display_error', [ $id ] );
        $c->user->add_to_planned_reports($c->stash->{problem});
    } else {
        $c->detach('/page_error_403_access_denied', []);
    }

    if ($c->get_param('ajax')) {
        $c->res->content_type('application/json; charset=utf-8');
        $c->res->body(encode_json({ outcome => $add ? 'add' : 'remove' }));
    } else {
        $c->res->redirect( $c->uri_for_action('report/display', $id) );
    }
}

sub shortlist_multiple : Path('planned/change_multiple') {
    my ($self, $c) = @_;
    $c->forward('/auth/check_csrf_token');

    my @ids = $c->get_param_list('ids[]');

    foreach my $id (@ids) {
      $c->forward( '/report/load_problem_or_display_error', [ $id ] );
      $c->user->add_to_planned_reports($c->stash->{problem});
    }

    $c->res->body(encode_json({ outcome => 'add' }));
}

sub by_shortlisted {
    my $a_order = $a->get_extra_metadata('order') || 0;
    my $b_order = $b->get_extra_metadata('order') || 0;
    if ($a_order && $b_order) {
        $a_order <=> $b_order;
    } elsif ($a_order) {
        -1; # Want non-ordered to come last
    } elsif ($b_order) {
        1; # Want non-ordered to come last
    } else {
        # Default to order added to planned reports
        $a->user_planned_reports->first->id <=> $b->user_planned_reports->first->id;
    }
}

sub anonymize : Path('anonymize') {
    my ($self, $c) = @_;
    $c->forward('/auth/get_csrf_token');

    my $object;
    if (my $id = $c->get_param('problem')) {
        $c->forward( '/report/load_problem_or_display_error', [ $id ] );
        $object = $c->stash->{problem};
    } elsif ($id = $c->get_param('update')) {
        $c->stash->{update} = $object = $c->model('DB::Comment')->find({ id => $id });
        $c->detach('/page_error_400_bad_request') unless $object;
    } else {
        $c->detach('/page_error_404_not_found');
    }
    $c->detach('/page_error_400_bad_request') unless $c->user->id == $object->user_id;
    $c->detach('/page_error_400_bad_request') if $object->anonymous;

    if ($c->get_param('hide') || $c->get_param('hide_everywhere')) {
        $c->detach('/page_error_400_bad_request') unless $c->req->method eq 'POST';
        $c->forward('/auth/check_csrf_token');
        if ($c->get_param('hide')) {
            $object->update({ anonymous => 1 });
            $c->flash->{anonymized} = _('Your name has been hidden.');
        } elsif ($c->get_param('hide_everywhere')) {
            $c->user->problems->update({anonymous => 1});
            $c->user->comments->update({anonymous => 1});
            $c->flash->{anonymized} = _('Your name has been hidden from all your reports and updates.');
        }
        $c->res->redirect($object->url);
    }
}

__PACKAGE__->meta->make_immutable;

1;