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

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""

kallithea.controllers.changelog

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

changelog controller for Kallithea

This file was forked by the Kallithea project in July 2014.

Original author and date, and relevant copyright and licensing information is below:

:created_on: Apr 21, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, and others.

:license: GPLv3, see LICENSE.md for more details.

"""

import logging

import traceback

from pylons import request, url, session, tmpl_context as c

from pylons.controllers.util import redirect

from pylons.i18n.translation import _

from webob.exc import HTTPNotFound, HTTPBadRequest

import kallithea.lib.helpers as h

from kallithea.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator

from kallithea.lib.base import BaseRepoController, render

from kallithea.lib.helpers import RepoPage

from kallithea.lib.compat import json

from kallithea.lib.vcs.exceptions import RepositoryError, ChangesetDoesNotExistError,\

    ChangesetError, NodeDoesNotExistError, EmptyRepositoryError

from kallithea.lib.utils2 import safe_int, safe_str

log = logging.getLogger(__name__)

def _load_changelog_summary():

    p = safe_int(request.GET.get('page'), 1)

    size = safe_int(request.GET.get('size'), 10)

    def url_generator(**kw):

        return url('changelog_summary_home',

                   repo_name=c.db_repo.repo_name, size=size, **kw)

    collection = c.db_repo_scm_instance

    c.repo_changesets = RepoPage(collection, page=p,

                                 items_per_page=size,

                                 url=url_generator)

    page_revisions = [x.raw_id for x in list(c.repo_changesets)]

    c.comments = c.db_repo.get_comments(page_revisions)

    c.statuses = c.db_repo.statuses(page_revisions)

class ChangelogController(BaseRepoController):

    def __before__(self):

        super(ChangelogController, self).__before__()

        c.affected_files_cut_off = 60

    def __get_cs_or_redirect(self, rev, repo, redirect_after=True,

                             partial=False):

        """

        Safe way to get changeset if error occur it redirects to changeset with

        proper message. If partial is set then don't do redirect raise Exception

        instead

        :param rev: revision to fetch

        :param repo: repo instance

        """

        try:

            return c.db_repo_scm_instance.get_changeset(rev)

        except EmptyRepositoryError, e:

            if not redirect_after:

                return None

            h.flash(h.literal(_('There are no changesets yet')),

                    category='warning')

            redirect(url('changelog_home', repo_name=repo.repo_name))

        except RepositoryError, e:

            log.error(traceback.format_exc())

            h.flash(safe_str(e), category='warning')

            if not partial:

                redirect(h.url('changelog_home', repo_name=repo.repo_name))

            raise HTTPBadRequest()

    @LoginRequired()

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

                                   'repository.admin')

    def index(self, repo_name, revision=None, f_path=None):

        limit = 100

        default = 20

        if request.GET.get('size'):

            c.size = max(min(safe_int(request.GET.get('size')), limit), 1)

            session['changelog_size'] = c.size

            session.save()

        else:

            c.size = int(session.get('changelog_size', default))

        # min size must be 1

        c.size = max(c.size, 1)

        p = safe_int(request.GET.get('page', 1), 1)

        branch_name = request.GET.get('branch', None)

        if (branch_name and

            branch_name not in c.db_repo_scm_instance.branches and

            branch_name not in c.db_repo_scm_instance.closed_branches and

            not revision):

            return redirect(url('changelog_file_home', repo_name=c.repo_name,

                                    revision=branch_name, f_path=f_path or ''))

        if revision == 'tip':

            revision = None

        c.changelog_for_path = f_path

        try:

            if f_path:

                log.debug('generating changelog for path %s' % f_path)

                # get the history for the file !

                tip_cs = c.db_repo_scm_instance.get_changeset()

                try:

                    collection = tip_cs.get_file_history(f_path)

                except (NodeDoesNotExistError, ChangesetError):

                    #this node is not present at tip !

                    try:

                        cs = self.__get_cs_or_redirect(revision, repo_name)

                        collection = cs.get_file_history(f_path)

                    except RepositoryError, e:

                        h.flash(safe_str(e), category='warning')

                        redirect(h.url('changelog_home', repo_name=repo_name))

                collection = list(reversed(collection))

            else:

                collection = c.db_repo_scm_instance.get_changesets(start=0, end=revision,

                                                        branch_name=branch_name)

            c.total_cs = len(collection)

            c.pagination = RepoPage(collection, page=p, item_count=c.total_cs,

                                    items_per_page=c.size, branch=branch_name,)

            page_revisions = [x.raw_id for x in c.pagination]

            c.comments = c.db_repo.get_comments(page_revisions)

            c.statuses = c.db_repo.statuses(page_revisions)

        except (EmptyRepositoryError), e:

            h.flash(safe_str(e), category='warning')

            return redirect(url('summary_home', repo_name=c.repo_name))

        except (RepositoryError, ChangesetDoesNotExistError, Exception), e:

            log.error(traceback.format_exc())

            h.flash(safe_str(e), category='error')

            return redirect(url('changelog_home', repo_name=c.repo_name))

        c.branch_name = branch_name

        c.branch_filters = [('', _('All Branches'))] + \

            [(k, k) for k in c.db_repo_scm_instance.branches.keys()]

        if c.db_repo_scm_instance.closed_branches:

            prefix = _('(closed)') + ' '

            c.branch_filters += [('-', '-')] + \

                [(k, prefix + k) for k in c.db_repo_scm_instance.closed_branches.keys()]

        if not f_path:

        c.revision = revision # requested revision ref

        c.first_revision = c.pagination[0] # pagination is never empty here!

        return render('changelog/changelog.html')

    @LoginRequired()

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

                                   'repository.admin')

    def changelog_details(self, cs):

        if request.environ.get('HTTP_X_PARTIAL_XHR'):

            c.cs = c.db_repo_scm_instance.get_changeset(cs)

            return render('changelog/changelog_details.html')

        raise HTTPNotFound()

    @LoginRequired()

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

                                   'repository.admin')

    def changelog_summary(self, repo_name):

        if request.environ.get('HTTP_X_PARTIAL_XHR'):

            _load_changelog_summary()

            return render('changelog/changelog_summary_data.html')

        raise HTTPNotFound()

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

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""

Modified mercurial DAG graph functions that re-uses VCS structure

It allows to have a shared codebase for DAG generation for hg and git repos

"""

nullrev = -1

def grandparent(parentrev_func, lowestrev, roots, head):

    """

    Return all ancestors of head in roots which revision is

    greater or equal to lowestrev.

    """

    pending = set([head])

    seen = set()

    kept = set()

    llowestrev = max(nullrev, lowestrev)

    while pending:

        r = pending.pop()

        if r >= llowestrev and r not in seen:

            if r in roots:

                kept.add(r)

            else:

                pending.update([p for p in parentrev_func(r)])

            seen.add(r)

    return sorted(kept)

def _dagwalker(repo, revs, alias):

    if not revs:

        return

    if alias == 'hg':

        cl = repo._repo.changelog.parentrevs

        repo = repo

    elif alias == 'git':

        def cl(rev):

            return [x.revision for x in repo[rev].parents]

        repo = repo

    lowestrev = min(revs)

    gpcache = {}

    knownrevs = set(revs)

    for rev in revs:

        ctx = repo[rev]

        parents = sorted(set([p.revision for p in ctx.parents

                              if p.revision in knownrevs]))

        mpars = [p.revision for p in ctx.parents if

                 p.revision != nullrev and p.revision not in parents]

        for mpar in mpars:

            gp = gpcache.get(mpar)

            if gp is None:

                gp = gpcache[mpar] = grandparent(cl, lowestrev, revs, mpar)

            if not gp:

                parents.append(mpar)

            else:

                parents.extend(g for g in gp if g not in parents)

        yield (ctx.revision, 'C', ctx, parents)

def _colored(dag):

    """annotates a DAG with colored edge information

    For each DAG node this function emits tuples::

      (id, type, data, (col, color), [(col, nextcol, color)])

    with the following new elements:

      - Tuple (col, color) with column and color index for the current node

      - A list of tuples indicating the edges between the current node and its

        parents.

// 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 ]

];

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

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

	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.setColor = 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 + ')';

		this.ctx.strokeStyle = s;

		this.ctx.fillStyle = s;

	}

		var idx = 1;

		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 in data) {

			var row = document.getElementById("chg_"+idx);

			if (row == null)

				continue;

			var	next = document.getElementById("chg_"+(idx+1));

			var extra = 0;

			cur = data[i];

			var rowY = row.offsetTop + row.offsetHeight/2 - rela.offsetTop;

			var nextY = (next == null) ? rowY + row.offsetHeight/2 : next.offsetTop + next.offsetHeight/2 - rela.offsetTop;

			for (var j in in_l) {

				line = in_l[j];

				start = line[0];

				end = line[1];

				color = line[2];

				this.setColor(color, 0.0, 0.65);

				x = base_x - box_size * start;

				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];

			radius = this.dot_radius;

			x = base_x - box_size * column;

			this.ctx.beginPath();

			this.setColor(color, 0.25, 0.75);

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

			this.ctx.fill();

			idx++;

		}

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

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

<%def name="title()">

    ${_('%s Changelog') % c.repo_name}

    %if c.changelog_for_path:

      /${c.changelog_for_path}

    %endif

    %if c.site_name:

        · ${c.site_name}

    %endif

</%def>

<%def name="breadcrumbs_links()">

    <% size = c.size if c.size <= c.total_cs else c.total_cs %>

    ${_('Changelog')}

    %if c.changelog_for_path:

     - /${c.changelog_for_path}

    %endif

    %if c.revision:

    @ ${h.short_id(c.first_revision.raw_id)}

    %endif

    - ${ungettext('showing %d out of %d revision', 'showing %d out of %d revisions', size) % (size, c.total_cs)}

</%def>

<%def name="page_nav()">

    ${self.menu('repositories')}

</%def>

<%def name="main()">

${self.repo_context_bar('changelog', c.first_revision.raw_id if c.first_revision else None)}

<div class="box">

    <!-- box / title -->

    <div class="title">

        ${self.breadcrumbs()}

    </div>

    <div class="table">

        % if c.pagination:

                <div style="overflow:auto; display:${'none' if c.changelog_for_path else ''}">

                    <div class="container_header">

                       <div style="float:right; margin: 0px 0px 0px 4px">${h.select('branch_filter',c.branch_name,c.branch_filters)}</div>

                       <div class="info_box" style="text-align: right; float: right">

                            <a href="#" class="btn btn-mini" id="rev_range_container" style="display:none"></a>

                            <a href="#" class="btn btn-mini" id="rev_range_clear" style="display:none">${_('Clear selection')}</a>

                            %if c.revision:

                                <a class="btn btn-mini" href="${h.url('changelog_home', repo_name=c.repo_name)}">

                                    ${_('Go to tip of repository')}

                                </a>

                            %endif

                            %if c.db_repo.fork:

                                <a id="compare_fork"

                                   title="${_('Compare fork with %s' % c.db_repo.fork.repo_name)}"

                                   href="${h.url('compare_url',repo_name=c.db_repo.fork.repo_name,org_ref_type=c.db_repo.landing_rev[0],org_ref_name=c.db_repo.landing_rev[1],other_repo=c.repo_name,other_ref_type='branch' if request.GET.get('branch') else c.db_repo.landing_rev[0],other_ref_name=request.GET.get('branch') or c.db_repo.landing_rev[1], merge=1)}"

                                   class="btn btn-mini"><i class="icon-loop"></i> ${_('Compare fork with parent repo (%s)' % c.db_repo.fork.repo_name)}</a>

                            %endif

                            ## text and href of open_new_pr is controlled from javascript

                            <a id="open_new_pr" class="btn btn-mini"></a>

                       </div>

                       ${h.form(h.url.current(),method='get')}

                       <div style="float:left">

                           ${h.submit('set',_('Show'),class_="btn btn-mini")}

                           ${h.text('size',size=1,value=c.size)}

                           ${_('revisions')}

                       </div>

                       ${h.end_form()}

                    </div>

                </div>

                <div style="clear:both">

                <div id="graph_nodes">

                    <canvas id="graph_canvas"></canvas>

                </div>

                <div id="graph_content" style="${'margin: 0px' if c.changelog_for_path else ''}">

                <table id="changesets">

                <tbody>

                %for cnt,cs in enumerate(c.pagination):

                    <tr id="chg_${cnt+1}" class="container ${'tablerow%s' % (cnt%2)}">

                        <td class="checkbox">

                            %if c.changelog_for_path:

                                ${h.checkbox(cs.raw_id,class_="changeset_range", disabled="disabled")}

                            %else:

                                ${h.checkbox(cs.raw_id,class_="changeset_range")}

                            %endif

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

                    }else{

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

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

                        %if c.revision:

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

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

                                                                        'rev_end':'${c.first_revision.raw_id}'});

                        %else:

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

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

                                                                        'branch':'${c.first_revision.branch}'});

                        %endif

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

                    }

                };

                YUE.onDOMReady(checkbox_checker);

                YUE.on(checkboxes,'click', checkbox_checker);

                YUE.on('rev_range_clear','click',function(e){

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

                        var cb = checkboxes[i];

                        cb.checked = false;

                    }

                    checkbox_checker();

                    YUE.preventDefault(e);

                });

                var msgs = YUQ('.message');

                // get first element height

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

                var row_h = el.clientHeight;

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

                    var m = msgs[i];

                    var h = m.clientHeight;

                    var pad = YUD.getStyle(m,'padding');

                    if(h > row_h){

                        var offset = row_h - (h+12);

                        YUD.setStyle(m.nextElementSibling,'display','block');

                        YUD.setStyle(m.nextElementSibling,'margin-top',offset+'px');

                    };

                }

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

                    $(this).children('i').hide();

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

                    $('#C-'+cid).css({'height': 'auto', 'margin': '4px 0px 4px 0px'})

                });

                // change branch filter

                YUE.on(YUD.get('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}'});

                    }

                });

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

            });

        </script>

        %else:

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

        %endif

    </div>

</div>

</%def>