package CMTD::Main;

use strict;
use warnings;
use utf8;

use Mojo::Base 'Mojolicious::Controller';

use Mojo::Util qw(trim b64_decode);
use POSIX qw(strftime);

sub index {
  my ($self) = @_;

  $self->render(text => "Go away!\n");
}

sub captcha {
  my ($self) = @_;

  eval {
    $self->allow_cors;
    my ($cid, $data) = $self->app->get_captcha;
    $self->app->log->debug("showing captcha #$cid");
    $self->render(json => {cid => $cid, data => $data}); 1;
  } or do {
    chomp $@;
    $self->app->log->error("error when showing captcha: $@");
    $self->client_reply(500, "internal error");
  };
}

sub c_form {
  my ($self) = @_;

  $self->allow_cors;
  $self->respond_to(json => {json => {}}, any => {template => 'main/form'});
}

sub c_list {
  my ($self) = @_;

  my $ref = $self->referrer;
  unless ($ref and ref($ref) eq 'HASH') {
    $self->client_reply(400, "can't detect referred page");
    return;
  }

  eval {
    $self->allow_cors;
    my $site = $self->app->site_by_name($ref->{site});
    if ($site and ref($site) eq 'HASH') {
      my @cm = ();
      if (my $pid = $self->app->pid_by_hash($site->{id}, $ref->{hash})) {
        $ref->{pid} = $pid;
        my @tm = $self->app->comments_by_pid($pid);
        foreach my $c (@tm) {
          $c->{date} = strftime("%Y-%m-%d %H:%M", localtime($c->{date}));
          $c->{text} = b64_decode($c->{text});
          # TODO: processing
        }
        @cm = @tm;
      }
      $self->stash(comments => \@cm);
      $self->respond_to(json => {json => \@cm}, any => {template => 'main/list'});
    } else {
      $self->client_reply(400, "no such site");
    } 1;
  } or do {
    chomp $@;
    my $msg = sprintf "Error when listing comments for %s/%s: %s",
      $ref->{site}, $ref->{pid}, $@;
    $self->app->log->error($msg);
    $self->client_reply(500, "internal error");
  };
}

sub c_add {
  my ($self) = @_;

  my $ref = $self->referrer;
  unless ($ref and ref($ref) eq 'HASH') {
    $self->client_reply(400, "can't detect referred page");
    return;
  }

  eval {
    $self->allow_cors;
    my (%msg, %cap);
    $msg{addr} = $self->tx->remote_address;
    foreach my $param (qw(name email text reply)) {
      $msg{$param} = trim($self->req->param($param) || '');
    }
    foreach my $param (qw(cid code)) {
      $cap{$param} = trim($self->req->param($param) || '');
    }
    do {{
      unless ($msg{text}) {
        $self->client_reply(400, "empty message");
        last;
      }
      my $site = $self->app->site_by_name($ref->{site});
      unless ($site and ref($site) eq 'HASH') {
        $self->client_reply(400, "no such site");
        last;
      }
      if ($site->{captcha}) {
        unless ($cap{cid}) {
          $self->client_reply(400, "missing captcha id");
          last;
        }
        unless ($cap{code}) {
          $self->client_reply(400, "missing captcha code");
          last;
        }
        if (my $error = $self->app->captcha_solve($cap{cid}, $cap{code})) {
          $self->client_reply(400, $error);
          last;
        }
      }
      my $pid = $self->app->pid_by_hash($site->{id}, $ref->{hash});
      unless ($pid) {
        $self->app->add_page($site->{id}, $ref);
        $pid = $self->app->pid_by_hash($site->{id}, $ref->{hash});
      }
      $self->add_comment($pid, \%msg);
      $self->client_reply(200, "OK");
    }} while (0); 1;
  } or do {
    chomp $@;
    my $msg = sprintf "Error when listing comments for %s/%s: %s",
      $ref->{site}, $ref->{pid}, $@;
    $self->app->log->error($msg);
    $self->client_reply(500, "internal error");
  };
}

1;