// branch_renderer.js - Rendering of branch DAGs on the client side

//

// Copyright 2010 Marcin Kuzminski <marcin AT python-works DOT com>

// Copyright 2008 Jesper Noehr <jesper AT noehr DOT org>

// Copyright 2008 Dirkjan Ochtman <dirkjan AT ochtman DOT nl>

// Copyright 2006 Alexander Schremmer <alex AT alexanderweb DOT de>

//

// derived from code written by Scott James Remnant <scott@ubuntu.com>

// Copyright 2005 Canonical Ltd.

//

// This software may be used and distributed according to the terms

// of the GNU General Public License, incorporated herein by reference.

var colors = [

	[ 1.0, 0.0, 0.0 ],

	[ 1.0, 1.0, 0.0 ],

	[ 0.0, 1.0, 0.0 ],

	[ 0.0, 1.0, 1.0 ],

	[ 0.0, 0.0, 1.0 ],

	[ 1.0, 0.0, 1.0 ],

	[ 1.0, 1.0, 0.0 ],

	[ 0.0, 0.0, 0.0 ]

];

	this.canvas = document.getElementById(canvas_id);

	if (!document.createElement("canvas").getContext)

		this.canvas = window.G_vmlCanvasManager.initElement(this.canvas);

	if (!this.canvas) { // canvas creation did for some reason fail - fail silently

		this.render = function(data,canvasWidth) {};

		return;

	}

	this.ctx = this.canvas.getContext('2d');

	this.ctx.strokeStyle = 'rgb(0, 0, 0)';

	this.ctx.fillStyle = 'rgb(0, 0, 0)';

	this.cur = [0, 0];

	this.line_width = 2.0;

	this.dot_radius = 3.5;

	this.close_x = 1.5 * this.dot_radius;

	this.close_y = 0.5 * this.dot_radius;

	this.calcColor = function(color, bg, fg) {

		color %= colors.length;

		var red = (colors[color][0] * fg) || bg;

		var green = (colors[color][1] * fg) || bg;

		var blue = (colors[color][2] * fg) || bg;

		red = Math.round(red * 255);

		green = Math.round(green * 255);

		blue = Math.round(blue * 255);

		var s = 'rgb(' + red + ', ' + green + ', ' + blue + ')';

		return s;

	}

	this.setColor = function(color, bg, fg) {

		var s = this.calcColor(color, bg, fg);

		this.ctx.strokeStyle = s;

		this.ctx.fillStyle = s;

	}

	this.render = function(data,canvasWidth) {

		var idx = 1;

		this.canvas.setAttribute('width',canvasWidth);

		var lineCount = 1;

		for (var i=0;i<data.length;i++) {

			var in_l = data[i][1];

			for (var j in in_l) {

				var m = in_l[j][0];

				if (m > lineCount)

					lineCount = m;

			}

		}

		var edge_pad = this.dot_radius + 2;

		var box_size = Math.min(18, Math.floor((canvasWidth - edge_pad*2)/(lineCount)));

		var base_x = canvasWidth - edge_pad;

		for (var i=0; i < data.length; ++i) {

			if (row == null) {

				continue;

			}

			var extra = 0;

			cur = data[i];

			node = cur[0];

			in_l = cur[1];

			closing = cur[2];

			for (var j in in_l) {

				line = in_l[j];

				start = line[0];

				end = line[1];

				color = line[2];

				x = base_x - box_size * start;

				// figure out if this is a dead-end;

				// we want to fade away this line

				var dead_end = true;

				if (next != null) {

					nextdata = data[i+1];

					next_l = nextdata[1];

					for (var k=0; k < next_l.length; ++k) {

						if (next_l[k][0] == end) {

							dead_end = false;

							break;

						}

					}

					if (nextdata[0][0] == end) // this is a root - not a dead end

						dead_end = false;

				}

				if (dead_end) {

					var gradient = this.ctx.createLinearGradient(x,rowY,x,nextY);

					gradient.addColorStop(0,this.calcColor(color, 0.0, 0.65));

					gradient.addColorStop(1,this.calcColor(color, 1.0, 0.0));

					this.ctx.strokeStyle = gradient;

					this.ctx.fillStyle = gradient;

				}

				// if this is a merge of differently

				// colored line, make it a gradient towards

				// the merged color

				else if (color != node[1] && start == node[0])

				{

					var gradient = this.ctx.createLinearGradient(x,rowY,x,nextY);

					gradient.addColorStop(0,this.calcColor(node[1], 0.0, 0.65));

					gradient.addColorStop(1,this.calcColor(color, 0.0, 0.65));

					this.ctx.strokeStyle = gradient;

					this.ctx.fillStyle = gradient;

				}

				else

				{

					this.setColor(color, 0.0, 0.65);

				}

				this.ctx.lineWidth=this.line_width;

				this.ctx.beginPath();

				this.ctx.moveTo(x, rowY);

				if (start == end)

				{

					this.ctx.lineTo(x,nextY+extra,3);

				}

				else

				{

					var x2 = base_x - box_size * end;

					var ymid = (rowY+nextY) / 2;

					this.ctx.bezierCurveTo (x,ymid,x2,ymid,x2,nextY);

				}

				this.ctx.stroke();

			}

			column = node[0];

			color = node[1];

			x = base_x - box_size * column;

			this.setColor(color, 0.25, 0.75);

			if (closing)

			{

				this.ctx.fillRect(x - this.close_x, rowY - this.close_y, 2*this.close_x, 2*this.close_y);

			}

			else

			{

				this.ctx.beginPath();

				this.ctx.arc(x, rowY, this.dot_radius, 0, Math.PI * 2, true);

				this.ctx.fill();

			}

			idx++;

		}

	}

}

                        </td>

                        <td class="mid">

                            <div class="log-container">

                                <div class="message" id="C-${cs.raw_id}">${h.urlify_commit(cs.message, c.repo_name,h.url('changeset_home',repo_name=c.repo_name,revision=cs.raw_id))}</div>

                                <div class="extra-container">

                                    %if c.comments.get(cs.raw_id):

                                        <div class="comments-container">

                                            <div class="comments-cnt" title="${_('Changeset has comments')}">

                                                <a href="${h.url('changeset_home',repo_name=c.repo_name,revision=cs.raw_id,anchor='comment-%s' % c.comments[cs.raw_id][0].comment_id)}">

                                                    ${len(c.comments[cs.raw_id])}

                                                    <i class="icon-comment-discussion"></i>

                                                </a>

                                            </div>

                                        </div>

                                    %endif

                                    %if h.is_hg(c.db_repo_scm_instance):

                                        %for book in cs.bookmarks:

                                            <div class="booktag" title="${_('Bookmark %s') % book}">

                                                ${h.link_to(book,h.url('changeset_home',repo_name=c.repo_name,revision=cs.raw_id))}

                                            </div>

                                        %endfor

                                    %endif

                                    %for tag in cs.tags:

                                        <div class="tagtag" title="${_('Tag %s') % tag}">

                                            ${h.link_to(tag,h.url('changeset_home',repo_name=c.repo_name,revision=cs.raw_id))}

                                        </div>

                                    %endfor

                                    %if (not c.branch_name) and cs.branch:

                                        <div class="branchtag" title="${_('Branch %s' % cs.branch)}">

                                            ${h.link_to(cs.branch,h.url('changelog_home',repo_name=c.repo_name,branch=cs.branch))}

                                        </div>

                                    %endif

                                </div>

                            </div>

                        </td>

                    </tr>

                %endfor

                </tbody>

                </table>

                </div>

                <div class="pagination-wh pagination-left">

                    ${c.pagination.pager('$link_previous ~2~ $link_next')}

                </div>

            </div>

        </div>

        <script type="text/javascript">

            $(document).ready(function(){

                //Monitor range checkboxes and build a link to changesets ranges

                var checkboxes = YUD.getElementsByClassName('changeset_range');

                // register extra routes needed for this view

                pyroutes.register('changeset_home', "${h.url('changeset_home', repo_name='%(repo_name)s', revision='%(revision)s')}", ['repo_name', 'revision']);

                var checkbox_checker = function(e){

                    var checked_checkboxes = [];

                    for (pos in checkboxes){

                        if(checkboxes[pos].checked){

                            checked_checkboxes.push(checkboxes[pos]);

                        }

                    }

                    if(YUD.get('open_new_pr')){

                        if(checked_checkboxes.length>1){

                            YUD.setStyle('open_new_pr','display','none');

                        } else {

                            YUD.setStyle('open_new_pr','display','');

                            if(checked_checkboxes.length>0){

                                YUD.get('open_new_pr').innerHTML = _TM['Open New Pull Request for Selected Changesets'];

                            }else{

                                YUD.get('open_new_pr').innerHTML = _TM['Open New Pull Request'];

                            }

                        }

                    }

                    if(checked_checkboxes.length>0){

                        var rev_end = checked_checkboxes[0].name;

                        var rev_start = checked_checkboxes[checked_checkboxes.length-1].name;

                        var url = pyroutes.url('changeset_home', {'repo_name': '${c.repo_name}',

                                                                  'revision': rev_start+'...'+rev_end});

                        var link = (rev_start == rev_end)

                            ? _TM['Show Selected Changeset __S']

                            : _TM['Show Selected Changesets __S → __E'];

                        link = link.replace('__S',rev_start.substr(0,6));

                        link = link.replace('__E',rev_end.substr(0,6));

                        YUD.get('rev_range_container').href = url;

                        YUD.get('rev_range_container').innerHTML = link;

                        YUD.setStyle('rev_range_container','display','');

                        YUD.setStyle('rev_range_clear','display','');

                        YUD.get('open_new_pr').href = pyroutes.url('pullrequest_home',

                                                                   {'repo_name': '${c.repo_name}',

                                                                    'rev_start': rev_start,

                                                                    'rev_end': rev_end})

                        var cb = checkboxes[i];

                        cb.checked = false;

                    }

                    checkbox_checker();

                    YUE.preventDefault(e);

                });

                var $msgs = $('.message');

                // get first element height

                var el = $('#graph_content .container')[0];

                var row_h = el.clientHeight;

                $msgs.each(function() {

                    var m = this;

                    var h = m.clientHeight;

                    if(h > row_h){

                        var offset = row_h - (h+12);

                        $(m.nextElementSibling).css('display', 'block');

                        $(m.nextElementSibling).css('margin-top', offset+'px');

                    }

                });

                $('.expand_commit').on('click',function(e){

                    var cid = $(this).attr('commit_id');

                    $('#C-'+cid).toggleClass('expanded');

                    //redraw the graph, r and jsdata are bound outside function

                    r.render(jsdata,100);

                });

                // change branch filter

                $("#branch_filter").select2({

                    dropdownAutoWidth: true,

                    minimumInputLength: 1

                    });

                $("#branch_filter").change(function(e){

                    var selected_branch = e.currentTarget.options[e.currentTarget.selectedIndex].value;

                    if(selected_branch != ''){

                        window.location = pyroutes.url('changelog_home', {'repo_name': '${c.repo_name}',

                                                                          'branch': selected_branch});

                    }else{

                        window.location = pyroutes.url('changelog_home', {'repo_name': '${c.repo_name}'});

                    }

                    $("#changelog").hide();

                });

                var jsdata = ${c.jsdata|n};

                r.render(jsdata,100);

            });

        </script>

        %else:

            ${_('There are no changes yet')}

        %endif

    </div>

</div>

</%def>

        </td>

        <td class="expand_commit" commit_id="${cs.raw_id}" title="${_('Expand commit message')}">

            <i class="icon-align-left" style="color:#999"></i>

        </td>

        <td><div id="C-${cs.raw_id}" class="message">${h.urlify_commit(cs.message, c.repo_name)}</div></td>

        </tr>

    %endfor

    </table>

    </div>

    %if c.as_form:

      <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">

      ## links should perhaps use ('rev', c.a_rev) instead ...

      ${h.link_to(_('Show merge diff'),

        h.url('compare_url',

          repo_name=c.a_repo.repo_name,

          org_ref_type=c.a_ref_type, org_ref_name=c.a_ref_name,

          other_repo=c.cs_repo.repo_name,

          other_ref_type=c.cs_ref_type, other_ref_name=c.cs_ref_name,

          merge='1')

        )}

      </div>

      <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">

        ${_('Common ancestor')}:

        %if c.ancestor:

        ${h.link_to(h.short_id(c.ancestor),h.url('changeset_home',repo_name=c.repo_name,revision=c.ancestor))}

        %else:

        ${_('No common ancestor found - repositories are unrelated')}

        %endif

      </div>

    %endif

    %if c.cs_ranges_org is not None:

      ## TODO: list actual changesets?

      <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">

        ${h.link_to_ref(c.cs_repo.repo_name, c.cs_ref_type, c.cs_ref_name, c.cs_rev)}

        ${_('is')}

        <a href="${c.swap_url}">${_('%s changesets') % (len(c.cs_ranges_org))}</a>

        ${_('behind')}

        ${h.link_to_ref(c.a_repo.repo_name, c.a_ref_type, c.a_ref_name)}

      </div>

    %endif

  %endif

</div>

%if c.as_form:

<div id="jsdata" style="display:none">${c.jsdata|n}</div>

%else:

%endif

<script type="text/javascript">

    $(document).ready(function(){

%if not c.as_form:

        var jsdata = ${c.jsdata|n};

        r.render(jsdata,100);

%endif

        $('.expand_commit').click(function(e){

            var cid = $(this).attr('commit_id');

            $('#C-'+cid).toggleClass('expanded');

            r.render(jsdata,100);

        });

        $('.gravatar').click(function(e){

            var cid = $(this).attr('commit_id');

            $('#row-'+cid).toggleClass('hl', !$('#row-'+cid).hasClass('hl'));

        });

    });

</script>

        </div>

        ## Reviewers

        <div style="float:left; border-left:1px dashed #eee">

            <div class="pr-details-title">${_('Pull Request Reviewers')}</div>

            <div id="reviewers" style="padding:0px 0px 0px 15px">

              ## members goes here !

              <div>

                <ul id="review_members" class="group_members">

                %for member in [c.a_repo.user]:

                  <li id="reviewer_${member.user_id}">

                    <div class="reviewers_member">

                      <div class="gravatar"><img alt="gravatar" src="${h.gravatar_url(member.email, 14)}"/> </div>

                      <div style="float:left">${member.firstname} ${member.lastname} (${_('owner')})</div>

                      <input type="hidden" value="${member.user_id}" name="review_members" />

                      <span class="action_button" style="padding: 3px" onclick="removeReviewMember(${member.user_id})" title="${_('Remove reviewer')}">

                          <i class="icon-remove-circled" style="color: #FF4444;"></i>

                      </span>

                    </div>

                  </li>

                %endfor

                </ul>

              </div>

              <div class='ac'>

                <div class="reviewer_ac">

                   ${h.text('user', class_='yui-ac-input',placeholder=_('Type name of reviewer to add'))}

                   <div id="reviewers_container"></div>

                </div>

              </div>

            </div>

        </div>

        <div style="clear:both;padding: 0 0 30px 0;"></div>

        <h4>${_('Changesets')}</h4>

        <div style="float:left;padding:0px 30px 30px 30px">

           ## overview pulled by ajax

           <div style="float:left" id="pull_request_overview"></div>

        </div>

        <div style="clear:both;"></div>

    </div>

    ${h.end_form()}

</div>

<script type="text/javascript">

  var _USERS_AC_DATA = ${c.users_array|n};

  var _GROUPS_AC_DATA = ${c.user_groups_array|n};

  PullRequestAutoComplete('user', 'reviewers_container', _USERS_AC_DATA, _GROUPS_AC_DATA);

  pyroutes.register('pullrequest_repo_info', "${url('pullrequest_repo_info',repo_name='%(repo_name)s')}", ['repo_name']);

  var pendingajax = undefined;

  var otherrepoChanged = function(){

      var $other_ref = $('#other_ref');

      $other_ref.prop('disabled', true);

      var repo_name = $('#other_repo').val();

      if (pendingajax) {

          pendingajax.abort();

          pendingajax = undefined;

      }

      pendingajax = ajaxGET(pyroutes.url('pullrequest_repo_info', {"repo_name": repo_name}),

          function(data){

              pendingajax = undefined;

              $('#other_repo_desc').html(data.description);

              // replace options of other_ref with the ones for the current other_repo

              $other_ref.empty();

              for(var i = 0; i < data.refs.length; i++)

              {

                var $optgroup = $('<optgroup/>').attr('label', data.refs[i][1]);

                var options = data.refs[i][0];

                var length = options.length;

                for(var j = 0; j < length; j++)

                {

                  $optgroup.append($('<option/>').text(options[j][1]).val(options[j][0]));

                }

                $other_ref.append($optgroup);

              }

              $other_ref.val(data.selected_ref);

              // reset && add the reviewer based on selected repo

              $('#review_members').html('');

              addReviewMember(data.user.user_id, data.user.firstname,

                              data.user.lastname, data.user.username,

                              data.user.gravatar_link);

              // re-populate the select2 thingie

              $("#other_ref").select2({

                  dropdownAutoWidth: true

              });

              $other_ref.prop('disabled', false);

              loadPreview();

          });

  };

  var loadPreview = function(){

      //url template

      var url = "${h.url('compare_url',

                         repo_name='__other_repo__',

                         org_ref_type='rev',

                         org_ref_name='__other_ref_name__',

                         other_repo='__org_repo__',

                         other_ref_type='rev',

                         other_ref_name='__org_ref_name__',

                         as_form=True,

                         merge=True,

                         )}";

      var org_repo = $('#pull_request_form #org_repo').val();

      var org_ref = $('#pull_request_form #org_ref').val().split(':');

      ## TODO: make nice link like link_to_ref() do

      $('#org_rev_span').html(org_ref[2].substr(0,12));

      var other_repo = $('#pull_request_form #other_repo').val();

      var other_ref = $('#pull_request_form #other_ref').val().split(':');

      $('#other_rev_span').html(other_ref[2].substr(0,12));

      var rev_data = {

          '__org_repo__': org_repo,

          '__org_ref_name__': org_ref[2],

          '__other_repo__': other_repo,

          '__other_ref_name__': other_ref[2]

      }; // gather the org/other ref and repo here

      for (k in rev_data){

          url = url.replace(k,rev_data[k]);

      }

      if (pendingajax) {

          pendingajax.abort();

          pendingajax = undefined;

      }

      pendingajax = asynchtml(url, $('#pull_request_overview'), function(o){

          pendingajax = undefined;

          var jsdata = eval('('+YUD.get('jsdata').innerHTML+')'); // TODO: just get json

          r.render(jsdata,100);

      });

  }

  $(document).ready(function(){

      $("#org_repo").select2({

          dropdownAutoWidth: true

      });

      ## (org_repo can't change)

      $("#org_ref").select2({

          dropdownAutoWidth: true

      });

      $("#org_ref").on("change", function(e){

          loadPreview();

      });

      $("#other_repo").select2({

          dropdownAutoWidth: true

      });

      $("#other_repo").on("change", function(e){

          otherrepoChanged();

      });

      $("#other_ref").select2({

          dropdownAutoWidth: true

      });

      $("#other_ref").on("change", function(e){

          loadPreview();

      });

      //lazy load overview after 0.5s

      setTimeout(loadPreview, 500);

  });

</script>

</%def>