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import { pie, arc } from 'd3-shape';
import { select, event } from 'd3-selection';
import PropTypes from 'prop-types';
const WIDTH = 210;
const HEIGHT = 210;
const RADIUS = Math.min(WIDTH, HEIGHT) / 2;
const GAP_VALUE = 2.5;
const ScoreChart = ({ performanceYear, chartData, linkCallback }) => {
const [hasLegend, setHasLegend] = useState(false);
const [titleMapping, setTitleMapping] = useState({
quality: 'Quality Measures',
aci: 'Advancing Care Info',
pi: 'Promoting Interoperability',
ia: 'Improvement Activities',
cost: 'Cost',
});
const { categories } = chartData;
let legendToggler;
let legend;
const getAdvancingCareLabel = () => {
Iif (performanceYear > 2017) {
setTitleMapping({ ...titleMapping, aci: 'Promoting Interoperability' });
}
};
const redirectToCategory = (link, categoryId) => {
if (!link) {
return;
}
// track explicitly chart legends
if (window.utag) {
window.utag.track('link', {
ga_event_category: 'SidebarNav',
ga_event_action: `GoTo${categoryId}`,
ga_event_label: categoryId,
});
}
if (linkCallback) {
linkCallback(link);
} else {
window.location.href = link;
}
};
const draw = (chartData) => {
const scorePie = pie().sort(null);
// Removing invalid categories
const categories = chartData.categories.filter(
({ maxContribution }) => !!maxContribution,
);
// Calculating the sum of valid categories in order to calculate ratios
const categorySum = categories
.map(({ maxContribution }) => maxContribution)
.reduce((sum, current) => sum + current);
Iif (!categorySum) {
return;
}
select('.score-chart').selectAll('*').remove();
const svg = select('.score-chart')
.attr('width', WIDTH)
.attr('height', HEIGHT);
const chartArc = arc()
.innerRadius(RADIUS - 1.5)
.outerRadius(RADIUS - 25);
// Preparing the data structure with ratios: [ FILLED, EMPTY, TRANSPARENT, FILLED, EMPTY, ... ]
let data;
Iif (categories.length === 0) {
data = [];
} else Iif (categories.length === 1) {
const { value, maxContribution } = categories[0];
data = [value || 0, maxContribution - value];
} else {
data = categories
.map(({ value, maxContribution }) => [
value || 0,
maxContribution - value,
GAP_VALUE * (categorySum / 100),
])
.reduce((a, b) => a.concat(b), []);
}
svg.append('title').attr('id', 'titleID').text('Your submission score');
svg
.append('desc')
.attr('id', 'descID')
.text(`${chartData.finalScore} out of 100`);
// Setting up the arcs
let arcs = svg
.append('g')
.attr('class', 'arcs')
.attr('role', 'presentation')
.selectAll('g.arc')
.data(scorePie(data))
.enter()
.append('g')
.attr('class', (d, i) => {
let role;
if (i % 3 === 0) {
role = 'filled';
} else if (i % 3 === 1) {
role = 'empty';
} else {
role = 'transparent';
}
return `arc ${categories[parseInt(i / 3)].name} ${role}`;
})
.attr('transform', `translate(${RADIUS}, ${RADIUS})`)
// For accessibility, we add keyboard access to the filled slices
.attr('tabindex', (d, i) => {
let tabindex = -1;
if (i % 3 === 0) {
tabindex = 0;
}
return tabindex;
})
// IE for for focusable svg elements
.attr('focusable', (d, i) => {
if (i % 3 === 0) {
return true;
}
})
// For accessibility, we add keyboard access to the filled slices
.on('keyup', (d, i) => {
const code = event.keyCode || event.which;
if (code === 13) {
const { name, link } = categories[parseInt(i / 3)];
redirectToCategory(link, name);
}
})
// On click - go to category page
.on('click', (d, i) => {
const { name, link } = categories[parseInt(i / 3)];
redirectToCategory(link, name);
});
// Add accessibility description
arcs.append('desc').text((d, i) => {
if (i % 3 === 0) {
const { name, value, maxContribution } = categories[parseInt(i / 3)];
return `${titleMapping[name]} ${value} out of ${maxContribution}`;
}
});
arcs
.append('path')
.attr('d', chartArc)
// On mouse over - show category tooltip
.on('mouseover', (d, i) => {
const { name, value, maxContribution } = categories[parseInt(i / 3)];
select('.chart-tooltip')
.style('opacity', 1)
.text(`${titleMapping[name]} ${value}/${maxContribution}`);
})
// On mouse move - move category tooltip
.on('mousemove', () => {
select('.chart-tooltip')
.style('top', event.clientY - HEIGHT + 10 + 'px')
.style('left', event.clientX + 'px');
})
// On mouse out - hide category tooltip
.on('mouseout', () => {
select('.chart-tooltip').style('opacity', 0);
});
// Adding title and subtitle
const text = svg
.append('g')
.attr('text-anchor', 'middle')
.attr('transform', `translate(${WIDTH / 2}, ${HEIGHT / 2})`);
// Adding title - X%
text
.append('text')
.attr('y', 4)
.attr('class', 'chart-title')
.text(chartData.finalScore);
// Adding subtitle - OUT OF 100
text
.append('text')
.attr('y', 24)
.attr('class', 'chart-subtitle')
.text('OUT OF 100');
};
const toggleLegend = () => {
setHasLegend(!hasLegend);
};
useEffect(() => {
Eif (chartData?.finalScore) {
draw(chartData);
getAdvancingCareLabel();
}
}, [chartData?.finalScore]);
Iif (hasLegend) {
legendToggler = (
<button className="open" type="button" aria-pressed="true">
Hide Legend
<svg
className="right-icon rotated"
aria-hidden="true"
focusable="false"
>
<use xlinkHref="#chevron-down" />
</svg>
</button>
);
legend = categories.map(({ name, value, maxContribution, link }, index) => {
return (
<li key={name} className="legend-axis">
<button onClick={() => redirectToCategory(link, name)}>
<span className={`legend-axis-color ${name}`} />
<span className="legend-axis-title">{titleMapping[name]}</span>
<span className="legend-axis-value">{`${value}/${maxContribution}`}</span>
</button>
</li>
);
});
} else {
legendToggler = (
<button type="button" aria-pressed="false">
Show Legend
<svg className="right-icon" aria-hidden="true" focusable="false">
<use xlinkHref="#chevron-down" />
</svg>
</button>
);
}
return (
<div className="chart">
<svg className="score-chart" focusable="false" />
<div className="chart-tooltip off" />
<div className="chart-legend-toggler" onClick={toggleLegend}>
{legendToggler}
</div>
<ul className="chart-legend">{legend}</ul>
</div>
);
};
ScoreChart.propTypes = {
chartData: PropTypes.object,
linkCallback: PropTypes.func,
performanceYear: PropTypes.number,
};
export default ScoreChart;
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