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import { Gridicon } from '@automattic/components';
import styled from '@emotion/styled';
import { useTranslate } from 'i18n-calypso';
import { useState } from 'react';
import { useInterval } from 'calypso/lib/interval/use-interval';
const LoadingProgressContainer = styled.div`
span {
display: flex;
align-items: center;
font-size: 16px;
font-weight: 400;
line-height: 24px;
margin-bottom: 15px;
position: relative;
.gridicons-checkmark {
display: none;
}
&:before {
content: '';
display: inline-block;
width: 1.875em;
height: 1.875em;
border-radius: 50%;
margin-right: 10px;
border: 1px solid transparent;
}
@keyframes rotate {
from {
transform: rotate( 0deg );
}
to {
transform: rotate( 360deg );
}
}
@-webkit-keyframes rotate {
from {
-webkit-transform: rotate( 0deg );
}
to {
-webkit-transform: rotate( 360deg );
}
}
&.complete {
.gridicons-checkmark {
display: block;
position: absolute;
height: 100%;
left: 0.4375em;
fill: #fff;
width: 1.125em;
}
:before {
background-color: var( --studio-green-30 );
color: #fff;
}
}
&.running:before {
border: 1px solid var( --studio-gray-5 );
}
&.running:after {
content: '';
width: 1.875em;
height: 1.875em;
position: absolute;
left: 0;
top: 0;
border: solid 1.5px rgba( 56, 88, 233, 1 );
border-radius: 50%;
border-right-color: transparent;
border-bottom-color: transparent;
-webkit-transition: all 0.5s ease-in;
-webkit-animation-name: rotate;
-webkit-animation-duration: 1s;
-webkit-animation-iteration-count: infinite;
-webkit-animation-timing-function: linear;
transition: all 0.5s ease-in;
animation-name: rotate;
animation-duration: 1s;
animation-iteration-count: infinite;
animation-timing-function: linear;
}
&.incomplete {
color: var( --studio-gray-50 );
::before {
border: 1px dashed var( --studio-gray-5 );
}
}
}
`;
const useLoadingSteps = ( {
isSavedReport,
pageTitle,
isLoadingPages,
}: {
isSavedReport: boolean;
pageTitle?: string;
isLoadingPages?: boolean;
} ) => {
const translate = useTranslate();
const [ step, setStep ] = useState( 0 );
let steps = [];
if ( isLoadingPages ) {
steps = [ translate( 'Getting your site pages' ) ];
} else {
steps = isSavedReport
? [ translate( 'Getting your report' ) ]
: [
pageTitle
? translate( 'Loading: %(pageTitle)s', { args: { pageTitle } } )
: translate( 'Loading your site' ),
translate( 'Measuring Core Web Vitals' ),
translate( 'Taking screenshots' ),
translate( 'Fetching historic data' ),
translate( 'Identifying performance improvements' ),
translate( 'Finalizing your results' ),
];
}
useInterval(
() => {
setStep( ( step ) => step + 1 );
},
// 5 seconds between steps, except make sure we stop _before_ completing the last step
step < steps.length - 1 && 5000 // 5 seconds
);
const stepStatus = ( index: number, step: number ) => {
if ( step > index ) {
return 'complete';
}
if ( step === index ) {
return 'running';
}
return 'incomplete';
};
return {
step,
steps,
stepStatus,
};
};
export const PerformanceReportLoadingProgress = ( {
pageTitle,
isSavedReport,
isLoadingPages,
className,
}: {
isSavedReport: boolean;
pageTitle?: string;
className?: string;
isLoadingPages?: boolean;
} ) => {
const { step, steps, stepStatus } = useLoadingSteps( {
isSavedReport,
pageTitle,
isLoadingPages,
} );
return (
<LoadingProgressContainer className={ className }>
{ steps.map( ( heading, index ) => (
<span key={ index } className={ stepStatus( index, step ) }>
<Gridicon icon="checkmark" />
{ heading }
</span>
) ) }
</LoadingProgressContainer>
);
};
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