from rhodecode.lib import diffs

from rhodecode.model.db import ChangesetComment

from rhodecode.model.comment import ChangesetCommentsModel

from rhodecode.model.meta import Session

log = logging.getLogger(__name__)

def anchor_url(revision,path):

    fid = h.FID(revision, path)

    return h.url.current(anchor=fid,**request.GET)

def get_ignore_ws(fid, GET):

    ig_ws_global = request.GET.get('ignorews')

    ig_ws = filter(lambda k:k.startswith('WS'),GET.getall(fid))

    if ig_ws:

        try:

            return int(ig_ws[0].split(':')[-1])

        except:

            pass

    return ig_ws_global

def _ignorews_url(fileid=None):

    params = defaultdict(list)

    lbl = _('show white space')

    ig_ws = get_ignore_ws(fileid, request.GET)

    ln_ctx = get_line_ctx(fileid, request.GET)

    # global option

    if fileid is None:

        if ig_ws is None:

            params['ignorews'] += [1]

            lbl = _('ignore white space')

        ctx_key = 'context'

            params[fileid] += ['WS:1']

            lbl = _('ignore white space')

        ctx_key = fileid

        ctx_val = 'C:%s' % ln_ctx

    # if we have passed in ln_ctx pass it along to our params

    if ln_ctx:

        params[ctx_key] += [ctx_val]

    params['anchor'] = fileid

    return h.link_to(lbl, h.url.current(**params))

def get_line_ctx(fid, GET):

    ln_ctx_global = request.GET.get('context')

    ln_ctx = filter(lambda k:k.startswith('C'),GET.getall(fid))

    if ln_ctx:

        retval = ln_ctx[0].split(':')[-1]

    else:

        retval = ln_ctx_global

    try:

        return int(retval)

    except:

        return

def _context_url(fileid=None):

    """

    Generates url for context lines

    :param fileid:

    """

    ig_ws = get_ignore_ws(fileid, request.GET)

    ln_ctx = (get_line_ctx(fileid, request.GET) or 3) * 2

    params = defaultdict(list)

    # global option

        params[fileid] += ['C:%s' % ln_ctx]

        ig_ws_key = fileid

        ig_ws_val = 'WS:%s' % 1

    if ig_ws:

        params[ig_ws_key] += [ig_ws_val]

    lbl = _('%s line context') % ln_ctx

    params['anchor'] = fileid

    return h.link_to(lbl, h.url.current(**params))

def wrap_to_table(str_):

    return '''<table class="code-difftable">

                <td class="lineno new"></td>

                </tr>

              </table>''' % str_

class ChangesetController(BaseRepoController):

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def __before__(self):

        super(ChangesetController, self).__before__()

        c.affected_files_cut_off = 60

    def index(self, revision):

        c.anchor_url = anchor_url

        c.ignorews_url = _ignorews_url

        c.context_url = _context_url

        #get ranges of revisions if preset

        rev_range = revision.split('...')[:2]

        try:

            if len(rev_range) == 2:

                rev_start = rev_range[0]

                rev_end = rev_range[1]

                rev_ranges = c.rhodecode_repo.get_changesets(start=rev_start,

                                                            end=rev_end)

            else:

                rev_ranges = [c.rhodecode_repo.get_changeset(revision)]

            c.cs_ranges = list(rev_ranges)

            if not c.cs_ranges:

                raise RepositoryError('Changeset range returned empty result')

        except (RepositoryError, ChangesetDoesNotExistError, Exception), e:

                    # made

                    c.sum_added += node.size

                    fid = h.FID(revision, node.path)

                    line_context_lcl = get_line_ctx(fid, request.GET)

                    ignore_whitespace_lcl = get_ignore_ws(fid, request.GET)

                    if c.sum_added < self.cut_off_limit:

                        f_gitdiff = diffs.get_gitdiff(filenode_old, node,

                                        ignore_whitespace=ignore_whitespace_lcl,

                                        context=line_context_lcl)

                        d = diffs.DiffProcessor(f_gitdiff, format='gitdiff')

                        st = d.stat()

                    else:

                        diff = wrap_to_table(_('Changeset is to big and '

                                               'was cut off, see raw '

                                               'changeset instead'))

                        c.cut_off = True

                        break

                cs1 = None

                cs2 = node.last_changeset.raw_id

                c.lines_added += st[0]

                c.lines_deleted += st[1]

                            ignore_whitespace_lcl = get_ignore_ws(fid, request.GET,)

                            f_gitdiff = diffs.get_gitdiff(filenode_old, node,

                                    ignore_whitespace=ignore_whitespace_lcl,

                                    context=line_context_lcl)

                            d = diffs.DiffProcessor(f_gitdiff,

                                                     format='gitdiff')

                            st = d.stat()

                            if (st[0] + st[1]) * 256 > self.cut_off_limit:

                                diff = wrap_to_table(_('Diff is to big '

                                                       'and was cut off, see '

                                                       'raw diff instead'))

                            else:

                            if diff:

                                c.sum_removed += len(diff)

                        else:

                            diff = wrap_to_table(_('Changeset is to big and '

                                                   'was cut off, see raw '

                                                   'changeset instead'))

                            c.cut_off = True

                            break

                    cs1 = filenode_old.last_changeset.raw_id

                    cs2 = node.last_changeset.raw_id

                              revision=revision))

    @jsonify

    def delete_comment(self, repo_name, comment_id):

        co = ChangesetComment.get(comment_id)

        owner = lambda : co.author.user_id == c.rhodecode_user.user_id

        if h.HasPermissionAny('hg.admin', 'repository.admin')() or owner:

            ChangesetCommentsModel().delete(comment=co)

            Session.commit()

            return True

        else:

            raise HTTPForbidden()

        """

        self.__udiff, iterator_copy = tee(self.__udiff)

        return iterator_copy

    def _extract_rev(self, line1, line2):

        """

        Extract the filename and revision hint from a line.

        """

        try:

            if line1.startswith('--- ') and line2.startswith('+++ '):

                l1 = line1[4:].split(None, 1)

                old_rev = l1[1] if len(l1) == 2 else 'old'

                l2 = line2[4:].split(None, 1)

                new_rev = l2[1] if len(l2) == 2 else 'new'

                return filename, new_rev, old_rev

        except (ValueError, IndexError):

            pass

        return None, None, None

    def _parse_gitdiff(self, diffiterator):

        def line_decoder(l):

            if l.startswith('+') and not l.startswith('+++'):

                self.adds += 1

            elif l.startswith('-') and not l.startswith('---'):

    def raw_diff(self):

        """

        Returns raw string as udiff

        """

        udiff_copy = self.copy_iterator()

        if self.__format == 'gitdiff':

            udiff_copy = self._parse_gitdiff(udiff_copy)

        return u''.join(udiff_copy)

    def as_html(self, table_class='code-difftable', line_class='line',

                new_lineno_class='lineno old', old_lineno_class='lineno new',

        """

        Return udiff as html table with customized css classes

        """

        def _link_to_if(condition, label, url):

            """

            Generates a link if condition is meet or just the label if not.

            """

            if condition:

                return '''<a href="%(url)s">%(label)s</a>''' % {'url': url,

                                                                'label': label}

            else:

                    _html.append('''\t<td %(a_id)s class="%(new_lineno_cls)s">''' \

                                    % {'a_id': anchor_new_id,

                                       'new_lineno_cls': new_lineno_class})

                    _html.append('''%(link)s''' \

                        % {'link':

                        _link_to_if(cond_new, change['new_lineno'], '#%s' \

                                                                % anchor_new)})

                    _html.append('''</td>\n''')

                    ###########################################################

                    # CODE

                    ###########################################################

                    _html.append('''\n\t\t<pre>%(code)s</pre>\n''' \

                                                % {'code': change['line']})

                    _html.append('''\t</td>''')

                    _html.append('''\n</tr>\n''')

        _html.append('''</table>''')

        if _html_empty:

            return None

        return ''.join(_html)

    def stat(self):

        """

        Returns tuple of added, and removed lines for this instance

    margin: 0px -10px 0px 5px;

    background-color: #DEDEDE;

}

.notifications a{

	color:#888 !important;

	display: block;

	font-size: 10px

}

.notifications a:hover{

	text-decoration: none !important;

}

.notification-header{

}

.notification-header .desc{

	font-size: 16px;

    height: 24px;

    float: left

}

.notification-list .container.unread{

}

.notification-header .desc.unread{

    font-weight: bold;

    font-size: 17px;

}

.notification-header .delete-notifications{

    float: right;

    padding-top: 8px;

    cursor: pointer;

}

.notification-subject{

    clear:both;

    height: 17px;

    line-height: 17px;

}

.diffblock.margined.comm .line .code:hover{

    background-color:#FFFFCC !important;

    cursor: pointer !important;

    background-image:url("../images/icons/comment_add.png") !important;

    background-repeat:no-repeat !important;

    background-position: right !important;

    background-position: 0% 50% !important;

}

	// create event for hide button

	form = new YAHOO.util.Element(form);

	var form_hide_button = new YAHOO.util.Element(form.getElementsByClassName('hide-inline-form')[0]);

	form_hide_button.on('click', function(e) {

		var newtr = e.currentTarget.parentNode.parentNode.parentNode.parentNode.parentNode;

		removeInlineForm(newtr);

		YUD.removeClass(parent_tr, 'form-open');

	});

	return form

};

var injectInlineForm = function(tr){

		  return

	  }	

	  YUD.addClass(tr,'form-open');

	  var node = tr.parentNode.parentNode.parentNode.getElementsByClassName('full_f_path')[0];

	  var f_path = YUD.getAttribute(node,'path');

	  var lineno = getLineNo(tr);

	  var form = createInlineForm(tr, f_path, lineno);

	  var target_tr = tr;

	  if(YUD.hasClass(YUD.getNextSibling(tr),'inline-comments')){

		  target_tr = YUD.getNextSibling(tr);

	  }

	  YUD.insertAfter(form,target_tr);

                            </div>

		                    <div class="changes">${h.fancy_file_stats(stat)}</div>

	                    </div>

	                %endfor

	                % if c.cut_off:

	                  ${_('Changeset was too big and was cut off...')}

	                % endif

	        </div>         

	    </div>

    </div>

    <%namespace name="comment" file="/changeset/changeset_file_comment.html"/>

    <script type="text/javascript">

      var deleteComment = function(comment_id){

          var url = "${url('changeset_comment_delete',repo_name=c.repo_name,comment_id='__COMMENT_ID__')}".replace('__COMMENT_ID__',comment_id);

          var postData = '_method=delete';

          var success = function(o){

              var n = YUD.get('comment-'+comment_id);

              n.parentNode.removeChild(n);

          }

          ajaxPOST(url,postData,success);

      }

        		  try{

          		    var inline = inlines[i];

          		    var lineno = YUD.getAttribute(inlines[i],'line');

          		    var lineid = "{0}_{1}".format(YUD.getAttribute(inline,'target_id'),lineno);

                    var target_line = YUD.get(lineid);

                    var add = createInlineAddButton(target_line.parentNode,'${_("add another comment")}');

                    YUD.insertAfter(add,target_line.parentNode);

                    var comment = new YAHOO.util.Element(tableTr('inline-comments',inline.innerHTML))

                    YUD.insertAfter(comment,target_line.parentNode);

        	  }

          }

      })

    </script> 

  </div>	

</%def>

##usage:

## <%namespace name="comment" file="/changeset/changeset_file_comment.html"/>

## ${comment.comment_block(co)}

##

<%def name="comment_block(co)">

  <div class="comment" id="comment-${co.comment_id}">

    <div class="comment-wrapp">

  	<div class="meta">

  		<span class="user">

  			<img src="${h.gravatar_url(co.author.email, 20)}" />

  			${co.author.username}

  		</span>

  		%if h.HasPermissionAny('hg.admin', 'repository.admin')() or co.author.user_id == c.rhodecode_user.user_id:

  			<div class="buttons">

  				<span onClick="deleteComment(${co.comment_id})" class="delete-comment ui-btn">${_('Delete')}</span>

  			</div>

  		%endif

  		${h.rst_w_mentions(co.text)|n}

  	</div>

    </div>

  </div>

</%def>

<div id='comment-inline-form-template' style="display:none">

  <div class="comment-inline-form">

  %if c.rhodecode_user.username != 'default':

      <div class="clearfix">

          <div class="comment-help">${_('Commenting on line')} {1}. ${_('Comments parsed using')} 

          <a href="${h.url('rst_help')}">RST</a> ${_('syntax')} ${_('with')} 

          <span style="color:#003367" class="tooltip" title="${_('Use @username inside this text to send notification to this RhodeCode user')}">@mention</span> ${_('support')}

          </div>

          <textarea id="text_{1}" name="text"></textarea>

      </div>

      <div class="comment-button">

      <input type="hidden" name="f_path" value="{0}">

      <input type="hidden" name="line" value="{1}">            

      ${h.submit('save', _('Comment'), class_='ui-btn')}

      ${h.reset('hide-inline-form', _('Hide'), class_='ui-btn hide-inline-form')}

      <div class="clearfix">

          <div class="comment-help">

            ${'You need to be logged in to comment.'} <a href="${h.url('login_home',came_from=h.url.current())}">${_('Login now')}</a>

          </div>

      </div>

      <div class="comment-button">

      ${h.reset('hide-inline-form', _('Hide'), class_='ui-btn hide-inline-form')}

      </div>

      ${h.end_form()}  

  %endif      

  </div>

</div>  

<%inherit file="/base/base.html"/>

<%def name="title()">

    ${c.repo_name} ${_('Changesets')} - r${c.cs_ranges[0].revision}:${h.short_id(c.cs_ranges[0].raw_id)} -> r${c.cs_ranges[-1].revision}:${h.short_id(c.cs_ranges[-1].raw_id)} - ${c.rhodecode_name}

</%def>

<%def name="breadcrumbs_links()">

    ${h.link_to(u'Home',h.url('/'))}

    »

    ${h.link_to(c.repo_name,h.url('summary_home',repo_name=c.repo_name))}

    »

    ${_('Changesets')} - r${c.cs_ranges[0].revision}:${h.short_id(c.cs_ranges[0].raw_id)} -> r${c.cs_ranges[-1].revision}:${h.short_id(c.cs_ranges[-1].raw_id)}

<%def name="page_nav()">

    ${self.menu('changelog')}     

</%def>

<%def name="main()">

<div class="box">

    <!-- box / title -->

    <div class="title">

        ${self.breadcrumbs()}

    </div>

    <div class="table">

		<div id="body" class="diffblock">

                <div>

				${_('Changesets')} - r${c.cs_ranges[0].revision}:${h.short_id(c.cs_ranges[0].raw_id)} -> r${c.cs_ranges[-1].revision}:${h.short_id(c.cs_ranges[-1].raw_id)}

				</div>

			</div>

		</div>

	    <div id="changeset_compare_view_content">

			<div class="container">

			<table class="compare_view_commits noborder">

            %for cs in c.cs_ranges:

                <tr>

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

                <td>${h.link_to('r%s:%s' % (cs.revision,h.short_id(cs.raw_id)),h.url('changeset_home',repo_name=c.repo_name,revision=cs.raw_id))}</td>

	        <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">${_('Files affected')}</div>

	        <div class="cs_files">

	               %for cs in c.cs_ranges:

	                   <div class="cur_cs">r${cs}</div>

	                %for change,filenode,diff,cs1,cs2,st in c.changes[cs.raw_id]:

	                    <div class="cs_${change}">${h.link_to(h.safe_unicode(filenode.path),h.url.current(anchor=h.FID(cs.raw_id,filenode.path)))}</div>

	                %endfor

	               %endfor 

	        </div>         

	    </div>

    </div>

   %for cs in c.cs_ranges:    	

	%endfor

    </div>

</%def>