<%

  # API

  my $api = gitprep_api;

  # Parameters

  my $base_user_id = param('user');

  my $base_project_id = param('project');

  my $base_branch = param('rev1');

  my $user_id_and_target_branch = param('rev2');

  my $page = param('page') || 0;

  my $expand = param('expand');

  # Default base branch

  $base_branch //= app->manager->default_branch($base_user_id, $base_project_id);

  # Base project

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

    [

      {__MY__ => '*'},

      {user => ['id']}

    ],

    where => {'project.id' => $base_project_id, 'user.id' => $base_user_id}

  )->one;

  # Get target user, project, branch

  my $target_user_id;

  my $target_branch;

  my $target_project;

  if ($user_id_and_target_branch =~ /^([^:]+):(.+)/) {

    $target_user_id = $1;

    $target_branch = $2;

    $target_project = $self->app->manager->child_project($base_user_id, $base_project_id, $target_user_id);

  }

  else {

    $target_user_id = $base_user_id;

    $target_branch = $user_id_and_target_branch // $base_branch;

    $target_project = $base_project

  }

  # Git

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

  my $errors;

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

    my $op = param('op');

    if ($op eq 'create-pull-request') {

      # Parameters

      my $title = param('title');

      my $message = param('message');

      # Validation

      my $vc = app->vc;

      my $validation = $vc->validation;

      # Check title

      if (!(defined $title && length $title)) {

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

      }

      elsif (length $title > 300) {

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

      }

      # Message

      if (!(defined $message && length $message)) {

        $message = '';

        if (length $message > 1000) {

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

        }

      }

      if ($validation->is_valid) {

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

          'project.row_id',

          where => {'user.id' => $base_user_id, 'project.id' => $base_project_id}

        )->value;

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

          where => {

            base_project => $project_row_id,

            base_branch => $base_branch,

            target_project => $target_project->{row_id},

            target_branch => $target_branch

          }

        )->one;

        my $issue;

        if ($pull_request) {

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

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

          )->one;

          $self->redirect_to("/$base_user_id/$base_project_id/pull/$issue->{number}");

          return;

        }

        else {

          my $now_tm = Time::Moment->now_utc;

          my $now_epoch = $now_tm->epoch;

          my $session_user_row_id = $api->session_user_row_id;

          my $issue_number;

          app->dbi->connector->txn(sub {

            # New pull request

            my $new_pull_request = {

              base_project => $project_row_id,

              base_branch => $base_branch,

              target_project => $target_project->{row_id},

              target_branch => $target_branch,

            };

            # last pull request row id

            app->dbi->model('pull_request')->insert($new_pull_request);

            my $new_pull_request_row_id = app->dbi->execute("select LAST_INSERT_ROWID()")->value;

            # issue number

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

              'max(number)',

              where => {project => $project_row_id},

              append => 'group by project'

            )->value;

            $issue_number++;

            # New issue

            my $new_issue = {

              title => $title,

              open => 1,

              open_time => $now_epoch,

              open_user => $session_user_row_id,

              pull_request => $new_pull_request_row_id,

              project => $project_row_id,

              number => $issue_number

            };

            app->dbi->model('issue')->insert($new_issue);

            my $new_issue_row_id = app->dbi->execute("select LAST_INSERT_ROWID()")->value;

            # New issue message

            my $new_issue_message = {

              issue => $new_issue_row_id,

              number => 1,

              message => $message,

              create_time => $now_epoch,

              update_time => $now_epoch,

              user => $session_user_row_id

            };

            app->dbi->model('issue_message')->insert($new_issue_message);

          });

          $self->redirect_to("/$base_user_id/$base_project_id/pull/$issue_number");

          return;

        }

      }

      else {

        $errors = $validation->messages;

      }

    }

  }

  # Can merge

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

  my $merge_success;

  my $target_rep_info;

  if ($target_project) {

    $target_rep_info = app->rep_info($target_user_id, $target_project->{id});

  }

  else {

    $target_rep_info = $base_rep_info;

  }

  # Create working repository if it don't exist

  $self->app->manager->create_work_rep($base_user_id, $base_project_id);

  # Lock working repository

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

  {

    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 automatically

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

      $work_rep_info,

      $target_rep_info,

      $target_branch

    );

  }

  # 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);

  if (!$start_commit_id || !$end_commit_id) {

    $self->reply->not_found;

    return;

  }

  # Member projects

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

  unshift @$member_projects, $base_project;

  # Base branches

  my $base_branches = $git->branches($base_rep_info);

  @$base_branches = sort { $a->{commit}{age} <=> $b->{commit}{age} } @$base_branches;

  # Target branches

  my $target_branches = $git->branches($target_rep_info);

  @$target_branches = sort { $a->{commit}{age} <=> $b->{commit}{age} } @$target_branches;

  # Can open pull request

  my $can_open_pull_request;

  if (keys %$commits_date && $expand) {

    $can_open_pull_request = 1;

  }

  # commit_body args

  my %commit_body_args = (

    rep_info => $work_rep_info,

    rev => $end_commit_id,

    from_rev => $start_commit_id

  );

  layout 'common', title => "Comparing $base_branch...$target_branch \x{30fb} $base_user_id/$base_project_id";

%>

%= javascript begin

  $(document).ready(function () {

    // Change base fork

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

      $('#base-fork-popup')

        .css('display', 'block')

        .css('top', '40px')

        .css('left', '10px')

      ;

    });

    $('#base-fork-popup').on('click', function () {

      $('#base-fork-popup').css('display', 'none');

    });

    // close popup

    $(document).click(function() { $('#base-fork-popup').hide(); });

    $('#base-fork-btn').click(function() { event.stopPropagation(); });

    $('#base-fork-popup').click(function() { event.stopPropagation(); });

    // Change head fork

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

      $('#head-fork-popup')

        .css('display', 'block')

        .css('top', '40px')

        .css('left', '10px')

      ;

    });

    $('#head-fork-popup').on('click', function () {

      $('#head-fork-popup').css('display', 'none');

    });

    // close popup

    $(document).click(function() { $('#head-fork-popup').hide(); });

    $('#head-fork-btn').click(function() { event.stopPropagation(); });

    $('#head-fork-popup').click(function() { event.stopPropagation(); });

    // Change base branch

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

      $('#base-branch-popup')

        .css('display', 'block')

        .css('top', '40px')

        .css('left', '10px')

      ;

    });

    $('#base-branch-close').on('click', function () {

      $('#base-branch-popup').css('display', 'none');

    });

    $('[name=base-branch]').on('keypress', function (e) {

      // Enter

      if (e.which == 13) {

        var href;

        % if ($base_user_id eq $target_user_id) {

          href = '<%= url_for("/$base_user_id/$base_project_id/compare/") %>' + $(this).val() + '...<%= $target_branch %>';

        % } else {

          href = '<%= url_for("/$base_user_id/$base_project_id/compare/") %>' + $(this).val() + '...<%= $target_user_id %>:<%= $target_branch %>';

        % }

        if (<%= $expand ? 1 : 0 %>) {

          href = href + '?expand=1';

        }

        location.href = href;

      }

    });

    // close popup

    $(document).click(function() { $('#base-branch-popup').hide(); });

    $('#base-branch-btn').click(function() { event.stopPropagation(); });

    $('#base-branch-popup').click(function() { event.stopPropagation(); });

    // Change compare branch

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

      $('#target-branch-popup')

        .css('display', 'block')

        .css('top', '40px')

        .css('left', '96px')

      ;

    });

    $('#target-branch-close').on('click', function () {

      $('#target-branch-popup').css('display', 'none');

    });

    $('[name=target-branch]').on('keypress', function (e) {

      // Enter

      if (e.which == 13) {

        var href = '<%= url_for("/$base_user_id/$base_project_id/compare/") %>' + '<%= $base_branch %>...' + $(this).val();

        if (<%= $expand ? 1 : 0 %>) {

          href = href + '?expand=1';

        }

        location.href = href;

      }

    });

    // close popup

    $(document).click(function() { $('#target-branch-popup').hide(); });

    $('#target-branch-btn').click(function() { event.stopPropagation(); });

    $('#target-branch-popup').click(function() { event.stopPropagation(); });

    %= include '/include/add_issue_form_js';

  });

% end

%= javascript begin

  $(document).ready(function () {

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

      $('#base-fork-btn').toggle();

      $('#head-fork-btn').toggle();

    });

  });

% end

%= include '/include/header';

<div class="container">

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

  <div class="topic1">

    % if ($can_open_pull_request) {

      Open a pull request

    % } else {

      Compare changes

    % }

  </div>

  <div class="compare-desc">

    Compare changes across branches, commits, tags, and more below. If you need to, you can also <a href="javascript:void(0)" id="comapre-across-btn">compare across forks</a>.

  </div>

  <div class="compare-select">

    <div>

      <div>

        <div style="display:inline-block">

          <button id="base-fork-btn" class="btn btn-small" style="<%= $base_user_id eq $target_user_id ? 'display:none' : '' %>">

            <span>base fork:</span><b> <%= $base_project->{'user.id'} %>/<%= $base_project->{id} %></b><i class="icon-arrow-down"></i>

          </button>

          <button id="base-branch-btn" class="btn btn-small">

            <span>base:</span><b> <%= $base_branch %></b><i class="icon-arrow-down"></i>

          </button>

          ...

        </div>

        <div style="display:inline-block;margin-top:10px;">

          <button id="head-fork-btn" class="btn btn-small" style="<%= $base_user_id eq $target_user_id ? 'display:none' : '' %>">

            <span>head fork:</span><b> <%= $target_project->{'user.id'} %>/<%= $target_project->{id} %></b><i class="icon-arrow-down"></i>

          </button>

          <button id="target-branch-btn" class="btn btn-small">

            <span>compare:</span> <b><%= $target_branch %></b><i class="icon-arrow-down"></i>

          </button>

          % if ($can_open_pull_request) {

            % if ($merge_success) {

              <span style="margin-left:10px">

                <span style="color:green;font-weight:bold"><%= "\x{2714}" %>Able to merge.</span> These branches can be automatically merged.

              </span>

            % } else {

              <span style="margin-left:10px">

                <span style="color:red;font-weight:bold">Not able to merge.</span> These branches can't be automatically merged.

              </span>

            % }

          % }

        </div>

      </div>

    </div>

    <div id="base-branch-popup" style="display:none;width:330px;position:absolute">

      <div class="radius-top border-gray" style="background:#E6E6FA;padding:10px">

        <div style="overflow:hidden">

          <div style="float:left;width:90%;">

            <b>Choose a base branch</b>

          </div>

          <div style="float:left:width:10%;text-align:right;">

            <i id="base-branch-close" class="icon-remove-circle"></i>

          </div>

        </div>

      </div>

      <div class="border-gray" style="background:#F5F5F5;border-top:none;border-bottom:none;text-align:center;padding:10px 0">

        %= text_field 'base-branch', style => 'margin-bottom:0;width:270px', placeholder => 'Branch, tag, commit, or history marker';

      </div>

      <div style="background:white;max-height:500px;overflow:auto;">

        <ul class="nav nav-tabs nav-stacked">

          % for (my $i = 0; $i < @$base_branches; $i++) {

            % my $branch = $base_branches->[$i];

              <li>

                <%

                  my $url;

                  if ($base_user_id eq $target_user_id) {

                    $url = url_with("/$base_user_id/$base_project_id/compare/$branch->{name}...$target_branch");

                  }

                  else {

                    $url = url_with("/$base_user_id/$base_project_id/compare/$branch->{name}...$target_user_id:$target_branch");

                  }

                %>

                <a style="border-top-left-radius:0px;border-top-right-radius:0px;"

                  href="<%= $url  %>">

                  <%= $branch->{name} %>

                </a>

              </li>

          % }

        </ul>

      </div>

    </div>

    <div id="target-branch-popup" style="display:none;width:330px;position:absolute">

      <div class="radius-top border-gray" style="background:#E6E6FA;padding:10px">

        <div style="overflow:hidden">

          <div style="float:left;width:90%;">

            <b>Choose a compare branch</b>

          </div>

          <div style="float:left:width:10%;text-align:right;">

            <i id="target-branch-close" class="icon-remove-circle"></i>

          </div>

        </div>

      </div>

      <div class="border-gray" style="background:#F5F5F5;border-top:none;border-bottom:none;text-align:center;padding:10px 0">

        %= text_field 'target-branch', style => 'margin-bottom:0;width:270px', placeholder => 'Branch, tag, commit, or history marker';

      </div>

      <div style="background:white;max-height:500px;overflow:auto;">

        <ul class="nav nav-tabs nav-stacked">

          % for (my $i = 0; $i < @$target_branches; $i++) {

            % my $target_branch = $target_branches->[$i];

              <li>

                <%

                  my $url;

                  if ($base_user_id eq $target_user_id) {

                    $url = url_with("/$base_user_id/$base_project_id/compare/$base_branch...$target_branch->{name}");

                  }

                  else {

                    $url = url_with("/$base_user_id/$base_project_id/compare/$base_branch...$target_user_id:$target_branch->{name}");

                  }

                %>

                <a style="border-top-left-radius:0px;border-top-right-radius:0px;" href="<%= $url %>">

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

                </a>

              </li>

          % }

        </ul>

      </div>

    </div>

    <div id="base-fork-popup" style="display:none;width:330px;position:absolute">

      <div class="radius-top border-gray" style="background:#E6E6FA;padding:10px">

        <div style="overflow:hidden">

          <div style="float:left;width:90%;">

            <b>Choose a base fork</b>

          </div>

          <div style="float:left:width:10%;text-align:right;">

            <i id="member-project-close" class="icon-remove-circle"></i>

          </div>

        </div>

      </div>

      <div style="background:white;max-height:500px;overflow:auto;">

        <ul class="nav nav-tabs nav-stacked">

          % for (my $i = 0; $i < @$member_projects; $i++) {

            % my $member_project = $member_projects->[$i];

              <%

                my $member_user_id = $member_project->{'user.id'};

                my $member_project_id = $member_project->{id};

              %>

              <li>

                <%

                  my $url;

                  if ($member_user_id eq $target_user_id) {

                    $url = url_with("/$member_user_id/$member_project_id/compare/$base_branch...$target_branch");

                  }

                  else {

                    $url = url_with("/$member_user_id/$member_project_id/compare/$base_branch...$target_user_id:$target_branch");

                  }

                %>

                <a style="border-top-left-radius:0px;border-top-right-radius:0px;" href="<%= $url %>">

                  <%= $member_user_id %>/<%= $member_project_id %>

                </a>

              </li>

          % }

        </ul>

      </div>

    </div>

    <div id="head-fork-popup" style="display:none;width:330px;position:absolute">

      <div class="radius-top border-gray" style="background:#E6E6FA;padding:10px">

        <div style="overflow:hidden">

          <div style="float:left;width:90%;">

            <b>Choose a head fork</b>

          </div>

          <div style="float:left:width:10%;text-align:right;">

            <i id="member-project-close" class="icon-remove-circle"></i>

          </div>

        </div>

      </div>

      <div style="background:white;max-height:500px;overflow:auto;">

        <ul class="nav nav-tabs nav-stacked">

          % for (my $i = 0; $i < @$member_projects; $i++) {

            % my $member_project = $member_projects->[$i];

              <%

                my $member_user_id = $member_project->{'user.id'};

                my $member_project_id = $member_project->{id};

              %>

              <li>

                <%

                  my $url;

                  if ($member_user_id eq $base_user_id) {

                    $url = url_with("/$base_user_id/$base_project_id/compare/$base_branch...$target_branch");

                  }

                  else {

                    $url = url_with("/$base_user_id/$base_project_id/compare/$base_branch...$member_user_id:$target_branch");

                  }

                %>

                <a style="border-top-left-radius:0px;border-top-right-radius:0px;" href="<%= $url %>">

                  <%= $member_user_id %>/<%= $member_project_id %>

                </a>

              </li>

          % }

        </ul>

      </div>

    </div>

  </div>

  % if (keys %$commits_date && $merge_success) {

    <div class="issue-add-comment" style="width:80%">

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

        <%= hidden_field op => 'create-pull-request' %>

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

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

            <%= text_field 'title' => $commits->[0]{title_short} %>

          </div>

          <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">

              <input type="submit" value="Create pull request" class="btn btn-success">

            </div>

          </div>

        </div>

      </form>

    </div>

  % }

  % if (keys %$commits_date) {

    <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="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;

  % } else {

    <div class="compare-nothing">

      <div>

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

      </div>

      <div>

        <b>

          <%= $base_branch %></b> is up to date with all commits from

          <b><%= $target_branch %></b>.

          Try <a href="<%= url_for("/$base_user_id/$base_project_id/compare/$target_branch...$base_branch") %>">switching the base</a> for your comparison.

      </div>

    </div>

  % }

</div>

%= include '/include/footer';