import os

import posixpath

from kallithea.lib.vcs.conf import settings

from kallithea.lib.vcs.backends.base import BaseChangeset

from kallithea.lib.vcs.exceptions import (

    ChangesetDoesNotExistError, ChangesetError, ImproperArchiveTypeError,

    NodeDoesNotExistError, VCSError

)

from kallithea.lib.vcs.nodes import (

    AddedFileNodesGenerator, ChangedFileNodesGenerator, DirNode, FileNode,

    NodeKind, RemovedFileNodesGenerator, RootNode, SubModuleNode

)

from kallithea.lib.vcs.utils import safe_str, safe_unicode, date_fromtimestamp

from kallithea.lib.vcs.utils.lazy import LazyProperty

from kallithea.lib.vcs.utils.paths import get_dirs_for_path

from kallithea.lib.vcs.utils.hgcompat import archival, hex

from mercurial import obsolete

class MercurialChangeset(BaseChangeset):

    """

    Represents state of the repository at the single revision.

    """

    def __init__(self, repository, revision):

        self.repository = repository

        assert isinstance(revision, basestring), repr(revision)

        self.raw_id = revision

        self._ctx = repository._repo[revision]

        self.revision = self._ctx._rev

        self.nodes = {}

    @LazyProperty

    def tags(self):

        return map(safe_unicode, self._ctx.tags())

    @LazyProperty

    def branch(self):

        return safe_unicode(self._ctx.branch())

    @LazyProperty

    def branches(self):

        return [safe_unicode(self._ctx.branch())]

    @LazyProperty

    def closesbranch(self):

        return self._ctx.closesbranch()

    @LazyProperty

    def obsolete(self):

        return self._ctx.obsolete()

    @LazyProperty

    def bumped(self):

        try:

            return self._ctx.phasedivergent()

        except AttributeError: # renamed in Mercurial 4.6 (9fa874fb34e1)

            return self._ctx.bumped()

    @LazyProperty

    def divergent(self):

        try:

            return self._ctx.contentdivergent()

        except AttributeError: # renamed in Mercurial 4.6 (8b2d7684407b)

            return self._ctx.divergent()

    @LazyProperty

    def extinct(self):

        return self._ctx.extinct()

    @LazyProperty

    def unstable(self):

        try:

            return self._ctx.orphan()

        except AttributeError: # renamed in Mercurial 4.6 (03039ff3082b)

            return self._ctx.unstable()

    @LazyProperty

    def phase(self):

        if(self._ctx.phase() == 1):

            return 'Draft'

        elif(self._ctx.phase() == 2):

            return 'Secret'

        else:

            return ''

    @LazyProperty

    def successors(self):

        successors = obsolete.successorssets(self._ctx._repo, self._ctx.node())

        if successors:

            # flatten the list here handles both divergent (len > 1)

            # and the usual case (len = 1)

            successors = [hex(n)[:12] for sub in successors for n in sub if n != self._ctx.node()]

        return successors

    @LazyProperty

        precursors = set()

        nm = self._ctx._repo.changelog.nodemap

        for p in self._ctx._repo.obsstore.precursors.get(self._ctx.node(), ()):

            pr = nm.get(p[0])

            if pr is not None:

                precursors.add(hex(p[0])[:12])

        return precursors

    @LazyProperty

    def bookmarks(self):

        return map(safe_unicode, self._ctx.bookmarks())

    @LazyProperty

    def message(self):

        return safe_unicode(self._ctx.description())

    @LazyProperty

    def committer(self):

        return safe_unicode(self.author)

    @LazyProperty

    def author(self):

        return safe_unicode(self._ctx.user())

    @LazyProperty

    def date(self):

        return date_fromtimestamp(*self._ctx.date())

    @LazyProperty

    def _timestamp(self):

        return self._ctx.date()[0]

    @LazyProperty

    def status(self):

        """

        Returns modified, added, removed, deleted files for current changeset

        """

        return self.repository._repo.status(self._ctx.p1().node(),

                                            self._ctx.node())

    @LazyProperty

    def _file_paths(self):

        return list(self._ctx)

    @LazyProperty

    def _dir_paths(self):

        p = list(set(get_dirs_for_path(*self._file_paths)))

        p.insert(0, '')

        return p

    @LazyProperty

    def _paths(self):

        return self._dir_paths + self._file_paths

    @LazyProperty

    def id(self):

        if self.last:

            return u'tip'

        return self.short_id

    @LazyProperty

    def short_id(self):

        return self.raw_id[:12]

    @LazyProperty

    def parents(self):

        """

        Returns list of parents changesets.

        """

        return [self.repository.get_changeset(parent.rev())

                for parent in self._ctx.parents() if parent.rev() >= 0]

    @LazyProperty

    def children(self):

        """

        Returns list of children changesets.

        """

        return [self.repository.get_changeset(child.rev())

                for child in self._ctx.children() if child.rev() >= 0]

    def next(self, branch=None):

        if branch and self.branch != branch:

            raise VCSError('Branch option used on changeset not belonging '

                           'to that branch')

        cs = self

        while True:

            try:

                next_ = cs.repository.revisions.index(cs.raw_id) + 1

                next_rev = cs.repository.revisions[next_]

            except IndexError:

                raise ChangesetDoesNotExistError

            cs = cs.repository.get_changeset(next_rev)

            if not branch or branch == cs.branch:

                return cs

    def prev(self, branch=None):

        if branch and self.branch != branch:

            raise VCSError('Branch option used on changeset not belonging '

                           'to that branch')

        cs = self

        while True:

            try:

                prev_ = cs.repository.revisions.index(cs.raw_id) - 1

                if prev_ < 0:

                    raise IndexError

                prev_rev = cs.repository.revisions[prev_]

            except IndexError:

                raise ChangesetDoesNotExistError

            cs = cs.repository.get_changeset(prev_rev)

            if not branch or branch == cs.branch:

                return cs

    def diff(self):

        # Only used for feed diffstat

        return ''.join(self._ctx.diff())

    def _fix_path(self, path):

        """

        Paths are stored without trailing slash so we need to get rid off it if

        needed. Also mercurial keeps filenodes as str so we need to decode

        from unicode to str

        """

        if path.endswith('/'):

            path = path.rstrip('/')

        return safe_str(path)

    def _get_kind(self, path):

        path = self._fix_path(path)

        if path in self._file_paths:

            return NodeKind.FILE

        elif path in self._dir_paths:

            return NodeKind.DIR

        else:

            raise ChangesetError("Node does not exist at the given path '%s'"

                % (path))

    def _get_filectx(self, path):

        path = self._fix_path(path)

        if self._get_kind(path) != NodeKind.FILE:

            raise ChangesetError("File does not exist for revision %s at "

                " '%s'" % (self.raw_id, path))

        return self._ctx.filectx(path)

    def _extract_submodules(self):

        """

        returns a dictionary with submodule information from substate file

        of hg repository

        """

        return self._ctx.substate

    def get_file_mode(self, path):

        """

        Returns stat mode of the file at the given ``path``.

        """

        fctx = self._get_filectx(path)

        if 'x' in fctx.flags():

            return 0100755

        else:

            return 0100644

    def get_file_content(self, path):

        """

        Returns content of the file at given ``path``.

        """

        fctx = self._get_filectx(path)

        return fctx.data()

    def get_file_size(self, path):

        """

        Returns size of the file at given ``path``.

        """

        fctx = self._get_filectx(path)

        return fctx.size()

    def get_file_changeset(self, path):

        """

        Returns last commit of the file at the given ``path``.

        """

        return self.get_file_history(path, limit=1)[0]

    def get_file_history(self, path, limit=None):

        """

        Returns history of file as reversed list of ``Changeset`` objects for

        which file at given ``path`` has been modified.

        """

        fctx = self._get_filectx(path)

        hist = []

## -*- coding: utf-8 -*-

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

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

<%block name="title">

    ${_('%s Changeset') % c.repo_name} - ${h.show_id(c.changeset)}

</%block>

<%def name="breadcrumbs_links()">

    ${_('Changeset')} - <span class='changeset_hash'>${h.show_id(c.changeset)}</span>

</%def>

<%block name="header_menu">

    ${self.menu('repositories')}

</%block>

<%def name="main()">

${self.repo_context_bar('changelog', c.changeset.raw_id)}

<div class="panel panel-primary">

  <div class="panel-heading clearfix">

    ${self.breadcrumbs()}

  </div>

  <script>

    AJAX_COMMENT_URL = ${h.js(url('changeset_comment',repo_name=c.repo_name,revision=c.changeset.raw_id))};

    AJAX_COMMENT_DELETE_URL = ${h.js(url('changeset_comment_delete',repo_name=c.repo_name,comment_id='__COMMENT_ID__'))};

  </script>

  <div class="panel-body">

    <div class="panel panel-default">

        <div class="panel-heading clearfix">

            ${self.parent_child_navigation()}

                <div class="pull-left" title="${_('Changeset status')}">

                    %if c.statuses:

                        <i class="icon-circle changeset-status-${c.statuses[0]}"></i>

                        [${h.changeset_status_lbl(c.statuses[0])}]

                    %endif

                </div>

                <div class="diff-actions pull-left">

                  <a href="${h.url('changeset_raw_home',repo_name=c.repo_name,revision=c.changeset.raw_id)}"

                     data-toggle="tooltip"

                     title="${_('Raw diff')}"><i class="icon-diff"></i></a>

                  <a href="${h.url('changeset_patch_home',repo_name=c.repo_name,revision=c.changeset.raw_id)}"

                     data-toggle="tooltip"

                     title="${_('Patch diff')}"><i class="icon-file-powerpoint"></i></a>

                  <a href="${h.url('changeset_download_home',repo_name=c.repo_name,revision=c.changeset.raw_id,diff='download')}"

                     data-toggle="tooltip"

                     title="${_('Download diff')}"><i class="icon-floppy"></i></a>

                  ${c.ignorews_url(request.GET)}

                  ${c.context_url(request.GET)}

                </div>

        </div>

        <div class="panel-body">

            <div class="form-group changeset_content_header clearfix">

                <div class="pull-right">

                    <span>

                        %if len(c.changeset.parents)>1:

                        <span class="label label-merge">${_('Merge')}</span>

                        %endif

                        %for book in c.changeset.bookmarks:

                        <span class="label label-bookmark" title="${_('Bookmark %s') % book}">${h.link_to(book,h.url('changeset_home',repo_name=c.repo_name,revision=c.changeset.raw_id))}</span>

                        %endfor

                        %for tag in c.changeset.tags:

                         <span class="label label-tag"  title="${_('Tag %s') % tag}">${h.link_to(tag,h.url('changeset_home',repo_name=c.repo_name,revision=c.changeset.raw_id))}</span>

                        %endfor

                        %for branch in c.changeset.branches:

                          <span class="label label-branch" title="${_('Branch %s') % branch}">${h.link_to(branch,h.url('changelog_home',repo_name=c.repo_name,branch=branch))}</span>

                        %endfor

                    </span>

                    <div class="changes">

                        % if (len(c.changeset.affected_files) <= c.affected_files_cut_off) or c.fulldiff:

                         <span class="label deleted" title="${_('Removed')}">${len(c.changeset.removed)}</span>

                         <span class="label changed" title="${_('Changed')}">${len(c.changeset.changed)}</span>

                         <span class="label added" title="${_('Added')}">${len(c.changeset.added)}</span>

                        % else:

                         <span class="label deleted" title="${_('Affected %s files') % len(c.changeset.affected_files)}">!</span>

                         <span class="label changed" title="${_('Affected %s files') % len(c.changeset.affected_files)}">!</span>

                         <span class="label added"   title="${_('Affected %s files') % len(c.changeset.affected_files)}">!</span>

                        % endif

                    </div>

                </div>

                <div class="pull-left">

                     <div class="author">

                         ${h.gravatar_div(h.email_or_none(c.changeset.author), size=20)}

                         <span><b>${h.person(c.changeset.author,'full_name_and_username')}</b> - ${h.age(c.changeset.date,True)} ${h.fmt_date(c.changeset.date)}</span><br/>

                         <span>${h.email_or_none(c.changeset.author)}</span><br/>

                     </div>

                     <% rev = c.changeset.extra.get('source') %>

                     %if rev:

                     <div>

                       ${_('Grafted from:')} ${h.link_to(h.short_id(rev),h.url('changeset_home',repo_name=c.repo_name,revision=rev), class_="changeset_hash")}

                     </div>

                     %endif

                     <% rev = c.changeset.extra.get('transplant_source', '').encode('hex') %>

                     %if rev:

                     <div>

                       ${_('Transplanted from:')} ${h.link_to(h.short_id(rev),h.url('changeset_home',repo_name=c.repo_name,revision=rev), class_="changeset_hash")}

                     </div>

                     %endif

                     % if hasattr(c.changeset, 'successors') and c.changeset.successors:

                     <div class='successors'>

                       <span class='successors_header'>${_('Replaced by:')} </span>

                       % for i, s in enumerate(c.changeset.successors):

                           <%

                           comma = ""

                           if i != len(c.changeset.successors)-1:

                             comma = ", "

                           %>

                         <a class='successors_hash' href="${h.url('changeset_home',repo_name=c.repo_name, revision=s)}">${s}</a>${comma}

                       % endfor

                     </div>

                     % endif

                           <%

                           comma = ""

                             comma = ", "

                           %>

                       % endfor

                     </div>

                     % endif

                </div>

            </div>

            <div class="form-group formatted-fixed">${h.urlify_text(c.changeset.message, c.repo_name)}</div>

            <div>

              <% a_rev, cs_rev, file_diff_data = c.changes[c.changeset.raw_id] %>

              % if c.limited_diff:

                  ${ungettext('%s file changed', '%s files changed', len(file_diff_data)) % len(file_diff_data)}:

              % else:

                  ${ungettext('%s file changed with %s insertions and %s deletions', '%s files changed with %s insertions and %s deletions', len(file_diff_data)) % (len(file_diff_data), c.lines_added, c.lines_deleted)}:

              %endif

              </div>

              <div class="cs_files">

                %for fid, url_fid, op, a_path, path, diff, stats in file_diff_data:

                    <div class="cs_${op} clearfix">

                      <span class="node">

                          <i class="icon-diff-${op}"></i>${h.link_to(h.safe_unicode(path), '#%s' % fid)}

                      </span>

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

                    </div>

                %endfor

                %if c.limited_diff:

                  <h5>${_('Changeset was too big and was cut off...')} <a href="${h.url.current(fulldiff=1, **request.GET.mixed())}">${_('Show full diff anyway')}</a></h5>

                %endif

            </div>

            <div class="comments-number">

                ${comment.comment_count(c.inline_cnt, len(c.comments))}

            </div>

        </div>

    </div>

    ## diff block

    <div class="commentable-diff">

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

    ${diff_block.diff_block_js()}

    <% a_rev, cs_rev, file_diff_data = c.changes[c.changeset.raw_id] %>

    ${diff_block.diff_block(c.repo_name, 'rev', a_rev, a_rev,

                            c.repo_name, 'rev', cs_rev, cs_rev, file_diff_data)}

    % if c.limited_diff:

      <h4>${_('Changeset was too big and was cut off...')} <a href="${h.url.current(fulldiff=1, **request.GET.mixed())}">${_('Show full diff anyway')}</a></h4>

    % endif

    </div>

    ## template for inline comment form

    ${comment.comment_inline_form()}

    ## render comments and inlines

    ${comment.generate_comments()}

    ## main comment form and it status

    ${comment.comments()}

    </div>

    ## FORM FOR MAKING JS ACTION AS CHANGESET COMMENTS

    <script type="text/javascript">

      $(document).ready(function(){

          $('.code-difftable').on('click', '.add-bubble', function(e){

              show_comment_form($(this));

          });

          move_comments($(".comments .comments-list-chunk"));

          // hack: re-navigate to target after JS is done ... if a target is set and setting href thus won't reload

          if (window.location.hash != "") {

              window.location.href = window.location.href;

          }

      });

    </script>

  </div>

</%def>