<%

  # API

  my $api = gitprep_api;

  # Parameters

  my $base_user_id = param('user');

  my $base_project_id = param('project');

  my $issue_number = param('number');

  # Issue

  my $issue = app->dbi->model('issue')->select(

    [

      {__MY__ => '*'},

      {open_user => ['id']}

    ],

    where => {

      'project.id' => $base_project_id,

      'issue.number' => $issue_number

    }

  )->one;

  # Pull requests

  my $pull_request = app->dbi->model('pull_request')->select(

    where => {row_id => $issue->{pull_request}}

  )->one;

  # Base information

  my $base_project_row_id = $pull_request->{base_project};

  my $base_project = app->dbi->model('project')->select(

    [

      {__MY__ => '*'},

      {user => ['id']}

    ],

    where => {'project.row_id' => $base_project_row_id}

  )->one;

  my $base_branch = $pull_request->{base_branch};

  Carp::croak "pull_request invalid user id"

    if $base_user_id ne $base_project->{'user.id'};

  Carp::croak "pull_request invalid project id"

    if $base_project_id ne $base_project->{id};

  # Target information

  my $target_project_row_id = $pull_request->{target_project};

  my $target_project = app->dbi->model('project')->select(

    [

      {__MY__ => '*'},

      {user => ['id']}

    ],

    where => {'project.row_id' => $target_project_row_id}

  )->one;

  my $target_branch = $pull_request->{target_branch};

  my $target_user_id = $target_project->{'user.id'};

  my $target_project_id = $target_project->{id};

  # Session

  my $session_user_row_id = $api->session_user_row_id;

  my $session_user_id = $api->session_user_id;

  # Base repository information

  my $base_rep_info = app->rep_info($base_user_id, $base_project_id);

  # Target repository information

  my $target_rep_info = app->rep_info($target_user_id, $base_project_id);

  # Working repository information

  my $work_rep_info = app->work_rep_info($base_user_id, $base_project_id);

  # Display patch

  if (stash('patch')) {

    # Lock working repository

    my $lock_fh = $self->app->manager->lock_rep($work_rep_info);

    # Prepare merge

    $self->app->manager->prepare_merge(

      $work_rep_info,

      $base_rep_info,

      $base_branch,

      $target_rep_info,

      $target_branch

    );

    # Create patch

    my $patch = $self->app->manager->get_patch(

      $work_rep_info,

      $target_rep_info,

      $target_branch

    );

    $self->res->headers->content_type('text/plain; charset=utf-8');

    $self->render(text => $patch);

    return;

  }

  # Git

  my $git = $self->app->git;

  my $op = param('op') // '';

  my $errors;

  if (lc $self->req->method eq 'post') {

    # Close pull request

    my $op = param('op');

    if ($op eq 'close-issue') {

      app->dbi->model('issue')->update(

        {

          open => 0

        },

        where => {row_id => $issue->{row_id}}

      );

      $self->redirect_to('current');

      return;

    }

    elsif ($op eq 'reopen-issue') {

      my $open_time = time;

      app->dbi->model('issue')->update(

        {

          open => 1,

          open_time => $open_time,

          open_user => $session_user_row_id

        },

        where => {

          row_id => $issue->{row_id}

        }

      );

      $self->redirect_to('current');

      return;

    }

    elsif ($op eq 'merge') {

      # Access controll

      unless ($api->can_write_access($session_user_id, $base_user_id, $base_project_id)) {

        $self->reply->exception('Forbbiden');

        return;

      }

      # Lock working repository

      my $lock_fh = $self->app->manager->lock_rep($work_rep_info);

      # Prepare merge

      $self->app->manager->prepare_merge(

        $work_rep_info,

        $base_rep_info,

        $base_branch,

        $target_rep_info,

        $target_branch

      );

      # Merge

      my $merge_success = $self->app->manager->merge(

        $work_rep_info,

        $target_rep_info,

        $target_branch

      );

      if ($merge_success) {

        # Push

        app->manager->push($work_rep_info, $base_branch);

        # Close

        app->dbi->model('issue')->update(

          {

            open => 0

          },

          where => {row_id => $issue->{row_id}}

        );

        $self->redirect_to("/$base_user_id/$base_project_id/tree/$base_branch");

      }

    }

    elsif ($op eq 'add-comment') {

      # Parameters

      my $message = param('message');

      # Validation

      my $vc = app->vc;

      my $validation = $vc->validation;

      # Check Message

      if (!length $message) {

        $validation->add_failed(message => 'message is empty');

      }

      elsif (length $message > 1000) {

        $validation->add_failed(message => 'message is too long');

      }

      if ($validation->is_valid) {

        $api->add_issue_message($base_user_id, $base_project_id, $issue_number, $message);

        $self->redirect_to;

        return;

      }

      else {

        $errors = $validation->messages;

      }

    }

    elsif ($op eq 'api-delete-issue-message') {

      my $issue_message_row_id = param('issue_message_row_id');

      my $json = $api->api_delete_issue_message($issue_message_row_id, $base_user_id);

      $self->render(json => $json);

      return;

    }

    elsif ($op eq 'api-update-issue-message') {

      my $issue_message_row_id = param('issue_message_row_id');

      my $message = param('message');

      my $json = $api->api_update_issue_message($issue_message_row_id, $message, $base_user_id);

      $self->render(json => $json);

      return;

    }

  }

  # Commits

  my $commits = $git->forward_commits(

    $work_rep_info,

    $base_rep_info,

    $base_branch,

    $target_rep_info,

    $target_branch

  );

  my $commits_count = @$commits;

  my $commits_date = {};

  my $authors = {};

  for my $commit (@$commits) {

    my $date = $commit->{age_string_date_local};

    $commits_date->{$date} ||= [];

    $authors->{$commit->{author}} = 1;

    push @{$commits_date->{$date}}, $commit;

  }

  my $authors_count = keys %$authors;

  # Start commit

  my $start_commit_id = app->git->ref_to_object_id($base_rep_info, $base_branch);

  # End commit

  my $end_commit_id = app->git->ref_to_object_id($target_rep_info, $target_branch);

  # Issue messages

  my $issue_messages = app->dbi->model('issue_message')->select(

    [

      {__MY__ => '*'},

      {user => ['id']}

    ],

    where => {issue => $issue->{row_id}}

  )->all;

  # Issue message count

  my $issue_messages_count = app->dbi->model('issue_message')->select(

    'count(*)',

    where => {issue => $issue->{row_id}},

  )->value;

  # Check merge automatically

  my $merge_success;

  if ($api->can_write_access($session_user_id, $base_user_id, $base_project_id) && $issue->{open}) {

    my $lock_fh = $self->app->manager->lock_rep($work_rep_info);

    # Prepare merge

    $self->app->manager->prepare_merge(

      $work_rep_info,

      $base_rep_info,

      $base_branch,

      $target_rep_info,

      $target_branch

    );

    # Check merge automatical

    $merge_success = $self->app->manager->merge(

      $work_rep_info,

      $target_rep_info,

      $target_branch

    );

  }

  # HTTP repository URL

  my $http_rep_url = url_for("$target_user_id/$target_project_id.git")->to_abs;

  # SSH repository URL

  my $url = url_for->to_abs;

  $url->base(undef);

  my $ssh_port = config->{basic}{ssh_port};

  my $rep_home = app->rep_home;

  my $execute_user = getpwuid($>);

  my $ssh_rep_url_base = defined app->config->{basic}{'ssh_rep_url_base'}

    ? app->config->{basic}{'ssh_rep_url_base'} : $rep_home;

  my $ssh_rep_url = "ssh://$execute_user\@" . $url->host

    . ($ssh_port ? ":$ssh_port" : '') . "$ssh_rep_url_base/$user/$project.git";

  my $patch_url = url_for("/$base_user_id/$base_project_id/pull/$issue->{number}.patch")->to_abs;

  my $pre_content_base = "git checkout -b $target_user_id-$target_branch $base_branch";

  my $pre_content_http = "git pull $http_rep_url $target_branch";

  my $pre_content_ssh = "git pull $ssh_rep_url $target_branch";

  # Commit body arguments

  my %commit_body_args = (

    rep_info => $work_rep_info,

    rev => $end_commit_id,

    from_rev => $start_commit_id

  );

  layout 'common', title => "Pull Requests Tags \x{30fb} $base_user_id/$base_project_id";

%>

  %= javascript begin

    $(document).ready(function() {

      %= include '/include/js/issue';

    });

  % end

  %= include '/include/header';

  <div class="container">

    %= include '/include/errors', errors => $errors;

    <div style="font-size:23px;margin-top:20px;margin-bottom:9px;">

      <%

        my $pull_title = $pull_request->{target_branch};

        $pull_title =~ s/_/ /g;

        $pull_title = ucfirst $pull_title;

      %>

      <%= $pull_title %> <span style="color:#767676;">#<%= $issue->{number} %></span>

    </div>

    <div>

      <div style="display:inline-block;color:white;margin-right:4px;">

        % if ($issue->{open}) {

          <div style="background:#6cc644;padding:4px 8px;border-radius:3px;">

            Open

          </div>

        % } else {

          <div style="background:#bd2c00;padding:4px 8px;border-radius:3px;">

            Closed

          </div>

        % }

      </div>

      % my $open_user_id = $issue->{'open_user.id'};

      <a style="color:#333333;font-weight:bold" href="<%= url_for("/$open_user_id") %>"><%= $open_user_id %></a> 

      <span style="color:#767676">

        wants to merge <%= $commits_count %> commits

        into

        <span style="display:inline-block;padding:2px 4px;background:#e8f0f8;color:#336479;border-radius:3px;">

          <%= $pull_request->{base_branch} %>

        </span>

        from

        <span style="display:inline-block;padding:2px 4px;background:#e8f0f8;color:#336479;border-radius:3px;">

          % if ($base_user_id ne $target_user_id) {

            <%= $target_user_id %>

            /

          % }

          <%= $pull_request->{target_branch} %>

        </span>

      </span>

    </div>

    % if (!$commits_count) {

      <div class="compare-nothing" style="margin-top:10px">

        <div>

          <b><big>There isn't anything to compare.</big></b>

        </div>

      </div>

    % } else {

      <div>

        <ul class="compare-header">

          <li>

            <b><%= @$commits %></b> <span>commit</span>

          </li>

          <li>

            <b><%= $authors_count %></b> <span>contributor</span>

          </li>

          <li>

          </li>

          <li>

          </li>

        </ul>

        <div class="issue-panel" style="margin-top:10px;">

          <div>

            % for my $issue_message (@$issue_messages) {

              <%

                my %issue_message_param = (

                  user_id => $base_user_id,

                  issue_message => $issue_message

                );

              %>

              %= include '/include/issue_message', %issue_message_param;

            % }

          </div>

        </div>

        <div class="commits">

          % for my $date (reverse sort keys %$commits_date) {

            % my $commits = $commits_date->{$date};

            <div class="commit-date">

              <i class="icon-off"></i><span>Commits on <%= $date %></span>

            </div>

            <ul class="compare-commits-date-container">

              % for my $commit (sort {$b->{author_epoch} <=> $a->{author_epoch}} @$commits) {

                <%

                  my $commit_author_email = $commit->{author_email};

                  my $commit_author_id = app->dbi->model('user')->select(

                    'id',

                    where => {email => $commit_author_email}

                  )->value;

                %>

                <li>

                  <div class="compare-commits-author">

                    <span title="<%= $commit->{author_email} %>">

                      % if (defined $commit_author_id) {

                        <a href="<%= url_for("/$commit_author_id") %>"><%= $commit_author_id %></a>

                      % } else {

                        <%= $commit->{author_name} %>

                      % }

                    </span>

                  </div>

                  <div class="compare-commits-commit-title">

                    <a style="color:#333" href="<%= url_for("/$base_user_id/$base_project_id/commit/$commit->{id}") %>">

                      <%= $commit->{title_short} %>

                    </a>

                  </div>

                  <div class="compare-commits-commit-id">

                    <a href="<%= url_for("/$base_user_id/$base_project_id/commit/$commit->{id}") %>">

                      <%= substr($commit->{id}, 0, 7) %>

                    </a>

                  </div>

                </li>

              % }

            </ul>

          % }

        </div>

        %= include '/include/commit_body', %commit_body_args;

      % }

      % if ($api->can_write_access($session_user_id, $base_user_id, $base_project_id)) {

        % if ($commits_count && $merge_success && $issue->{open}) {

          <div class="pull-request-form">

            <div style="overflow:hidden">

              <div style="float:left;padding:10px;padding-right:0">

                <div style="width:30px;height:30px;text-align:center;border-radius:15px;background:#95c97e;color:white;padding-top:5px;"><%= "\x{2714}" %></div>

              </div>

              <div style="float:left">

                <div class="pull-request-form-title">

                  <div>

                    <b>This branch has no conflicts with the base branch</b>

                  </div>

                  <div>

                    <span style="color:#767676">Merging can be performed automatically.</span>

                  </div>

                </div>

              </div>

            </div>

            <div class="pull-request-form-button">

              <form action="<%= url_for %>" method="post">

                <%= hidden_field op => 'merge' %>

                <%= submit_button 'Merge pull request', class => "btn btn-success" %>

                <span style="margin-left:5px">

                  You can also view <a href="javascript:void(0)" onclick="$('#command-line-instructions').toggle()" >command line instructions</a>.

                </span>

              </form>

              <div id="command-line-instructions" style="display:none">

                <div style="font-size:18px;padding:10px 0">

                  Merging via command line

                </div>

                <div>

                  If you do not want to use the merge button or an automatic merge cannot be performed, you can perform a manual merge on the command line.

                </div>

                %= javascript begin

                  $(document).ready(function () {

                    var http_rep_url = "<%= $http_rep_url %>";

                    var ssh_rep_url = "<%= $ssh_rep_url %>";

                    var patch_url = "<%= $patch_url %>";

                    var pre_content_base = "<%= $pre_content_base %>";

                    var pre_content_http = "<%= $pre_content_http %>";

                    var pre_content_ssh = "<%= $pre_content_ssh %>";

                    var pre_content_http_all = pre_content_base + "\n" + pre_content_http;

                    var pre_content_ssh_all = pre_content_base + "\n" + pre_content_ssh;

                    $('#http-btn').on('click', function () {

                      $('[name=clone_url]').val(http_rep_url);

                      $('#step1').text(pre_content_http_all);

                    });

                    $('#ssh-btn').on('click', function () {

                      $('[name=clone_url]').val(ssh_rep_url);

                      $('#step1').text(pre_content_ssh_all);

                    });

                    $('#patch-btn').on('click', function () {

                      $('[name=clone_url]').val(patch_url);

                    });

                  });

                % end

                <div style="margin-top:10px">

                  <button id="http-btn" class="btn btn-small" style="border-radius:3px 0 0 3px">HTTPS</button><button id="ssh-btn" class="btn btn-small" style="border-radius:0">SSH</button><button id="patch-btn" class="btn btn-small" style="border-radius:0">Patch</button><%= text_field clone_url => $http_rep_url, style => "width:600px;padding:4px 7px 5px 7px;border-radius:0 3px 3px 0" %>

                </div>

                <div style="margin-top:15px;margin-bottom:5px;">

                  <b>Step 1:</b> From your project repository, check out a new branch and test the changes.

                </div>

<pre id="step1" style="background:#f2f2f2; padding:10px; border-radius:3px">

git checkout -b <%= $target_user_id %>-<%= $target_branch %> <%= $base_branch %>

git pull <%= url_for("$target_user_id/$target_project_id.git")->to_abs %> <%= $target_branch %>

</pre>

                <div style="margin-top:15px;margin-bottom:5px;">

                  <b>Step 2:</b> Merge the changes and update on GitPrep.

                </div>

<pre style="background:#f2f2f2; padding:10px; border-radius:3px">

git checkout <%= $base_branch %>

git merge --no-ff <%= $target_user_id %>-<%= $target_branch %>

git push origin <%= $base_branch %>

</pre>

              </div>

            </div>

          </div>

        % }

      % }

      % if ($api->logined) {

        <div class="issue-add-comment">

          <form action="<%= url_for %>" method="post">

            <%= hidden_field 'op' %>

            <div class="issue-add-comment-header">

              <div class="issue-message-write-tab issue-add-comment-header-tab"><a href="javascript:void(0)">Write</a></div>

              <div class="issue-message-preview-tab issue-add-comment-header-tab"><a class="disable" href="javascript:void(0)">Preview</a></div>

              %= include '/include/issue_comment_icon';

            </div>

            <div class="issue-add-comment-body">

              <div class="issue-message-write-area issue-add-comment-message">

                <%= text_area 'message' %>

              </div>

              <div class="issue-message-preview-area issue-add-comment-preview markdown-body" style="padding:10px">

              </div>

              <div class="issue-add-comment-bottom">

                <div class="issue-add-comment-button-left">

                  Styling with Markdown is supported

                </div>

                <div class="issue-add-comment-button">

                  % if ($issue->{open}) {

                    <input type="submit" value="Close pull request" onclick="$(this).closest('form').find('[name=op]').val('close-issue'); $(this).closest('form').submit();" class="btn">

                  % } else {

                    <input type="submit" value="Reopen pull request" onclick="$(this).closest('form').find('[name=op]').val('reopen-issue'); $(this).closest('form').submit();" class="btn">

                  % }

                  <input type="submit" value="Comment" onclick="$(this).closest('form').find('[name=op]').val('add-comment'); $(this).closest('form').submit();" class="btn btn-success">

                </div>

              </div>

            </div>

          </form>

        </div>

      % }

    </div>

  </div>

  %= include '/include/footer';