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// Copyright 2022 Acme Gating, LLC
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
import React, { useState, useEffect} from 'react'
import PropTypes from 'prop-types'
import { connect } from 'react-redux'
import * as d3 from 'd3'
import { useHistory } from 'react-router-dom'
import { makeJobGraphKey, fetchJobGraphIfNeeded } from '../../actions/jobgraph'
import { graphviz } from 'd3-graphviz'
function makeDot(tenant, pipeline, project, branch, jobGraph, dark) {
let ret = 'digraph job_graph {\n'
ret += ' bgcolor="transparent"\n'
ret += ' rankdir=LR;\n'
if (dark) {
ret += ' node [shape=box color="white" fontcolor="white"];\n'
} else {
ret += ' node [shape=box];\n'
}
jobGraph.forEach((job) => {
const searchParams = new URLSearchParams('')
searchParams.append('pipeline', pipeline)
searchParams.append('project', project.name)
searchParams.append('job', job.name)
searchParams.append('branch', branch)
// This will appear in the DOM as an "a href=" but we will
// manipulate the DOM later to add an onClick callback to make
// this an internal link.
const url = (tenant.linkPrefix +
'/freeze-job?' + searchParams.toString())
// Escape ampersands to get it through graphviz and d3; these will
// appear unescaped in the DOM.
const escaped_url = url.replace(/&/g, '&')
ret += ' "' + job.name + '" [URL="' + escaped_url + '"];\n'
if (job.dependencies.length) {
job.dependencies.forEach((dep) => {
let soft = ' [dir=back]'
if (dark) {
soft = ' [dir=back color="white" fontcolor="white"]'
}
if (dep.soft) {
if (dark) {
soft = ' [style=dashed dir=back color="white" fontcolor="white"]'
} else {
soft = ' [style=dashed dir=back]'
}
}
ret += ' "' + dep.name + '" -> "' + job.name + '"' + soft + ';\n'
})
}
})
ret += '}\n'
return ret
}
function GraphViz(props) {
const history = useHistory()
useEffect(() => {
const gv = graphviz('#graphviz')
.options({
fit: false,
zoom: true,
tweenPaths: false,
scale: 0.75,
}).renderDot(props.dot)
// Fix up the initial values of the internal transform data;
// without this the first time we pan the graph jumps.
const element = d3.select('.zuul-job-graph > svg')
const transform = element[0][0].firstElementChild.attributes.transform.value
const match = transform.match(/translate\(\d+,(\d+)\).*/)
if (match && match.length > 0) {
const val = parseInt(match[1])
gv._translation.y = val
gv._originalTransform.y = val
}
// Disable scroll wheel zooming because it interferes with window
// scrolling
gv.zoomSelection().on('wheel.zoom', null)
// Mutate the links to be internal links
d3.select('.zuul-job-graph').selectAll('.node a').on('click', event => {
d3.event.preventDefault()
history.push(event.attributes['xlink:href'])
})
}, [props.dot, history])
return (
<div className="zuul-job-graph" id="graphviz"/>
)
}
GraphViz.propTypes = {
dot: PropTypes.string.isRequired,
}
function JobGraphDisplay(props) {
const [dot, setDot] = useState()
const {fetchJobGraphIfNeeded, tenant, project, pipeline, branch, preferences } = props
useEffect(() => {
fetchJobGraphIfNeeded(tenant, project.name, pipeline, branch)
}, [fetchJobGraphIfNeeded, tenant, project, pipeline, branch])
const tenantJobGraph = props.jobgraph.jobGraphs[tenant.name]
const jobGraphKey = makeJobGraphKey(props.project.name,
props.pipeline,
props.branch)
const jobGraph = tenantJobGraph ? tenantJobGraph[jobGraphKey] : undefined
useEffect(() => {
if (jobGraph) {
setDot(makeDot(tenant, pipeline, project, branch, jobGraph, preferences.darkMode))
}
}, [tenant, pipeline, project, branch, jobGraph, preferences])
return (
<>
{dot && <GraphViz dot={dot}/>}
</>
)
}
JobGraphDisplay.propTypes = {
fetchJobGraphIfNeeded: PropTypes.func,
tenant: PropTypes.object,
project: PropTypes.object.isRequired,
pipeline: PropTypes.string.isRequired,
branch: PropTypes.string.isRequired,
jobgraph: PropTypes.object,
dispatch: PropTypes.func,
state: PropTypes.object,
preferences: PropTypes.object,
}
function mapStateToProps(state) {
return {
tenant: state.tenant,
jobgraph: state.jobgraph,
preferences: state.preferences,
state: state,
}
}
const mapDispatchToProps = { fetchJobGraphIfNeeded }
export default connect(mapStateToProps, mapDispatchToProps)(JobGraphDisplay)
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