/**
 * Interactions used by the Site Health modules in WordPress.
 *
 * @output wp-admin/js/site-health.js
 */

/* global ajaxurl, ClipboardJS, SiteHealth, wp */

jQuery( function( $ ) {

var __ = wp.i18n.__,
_n = wp.i18n._n,
sprintf = wp.i18n.sprintf,
clipboard = new ClipboardJS( '.site-health-copy-buttons .copy-button' ),
isStatusTab = $( '.health-check-body.health-check-status-tab' ).length,
isDebugTab = $( '.health-check-body.health-check-debug-tab' ).length,
pathsSizesSection = $( '#health-check-accordion-block-wp-paths-sizes' ),
successTimeout;

// Debug information copy section.
clipboard.on( 'success', function( e ) {
var triggerElement = $( e.trigger ),
successElement = $( '.success', triggerElement.closest( 'div' ) );

// Clear the selection and move focus back to the trigger.
e.clearSelection();
// Handle ClipboardJS focus bug, see https://github.com/zenorocha/clipboard.js/issues/680
triggerElement.trigger( 'focus' );

// Show success visual feedback.
clearTimeout( successTimeout );
successElement.removeClass( 'hidden' );

// Hide success visual feedback after 3 seconds since last success.
successTimeout = setTimeout( function() {
successElement.addClass( 'hidden' );
// Remove the visually hidden textarea so that it isn't perceived by assistive technologies.
if ( clipboard.clipboardAction.fakeElem && clipboard.clipboardAction.removeFake ) {
clipboard.clipboardAction.removeFake();
}
}, 3000 );

// Handle success audible feedback.
wp.a11y.speak( __( 'Site information has been copied to your clipboard.' ) );
} );

// Accordion handling in various areas.
$( '.health-check-accordion' ).on( 'click', '.health-check-accordion-trigger', function() {
var isExpanded = ( 'true' === $( this ).attr( 'aria-expanded' ) );

if ( isExpanded ) {
$( this ).attr( 'aria-expanded', 'false' );
$( '#' + $( this ).attr( 'aria-controls' ) ).attr( 'hidden', true );
} else {
$( this ).attr( 'aria-expanded', 'true' );
$( '#' + $( this ).attr( 'aria-controls' ) ).attr( 'hidden', false );
}
} );

// Site Health test handling.

$( '.site-health-view-passed' ).on( 'click', function() {
var goodIssuesWrapper = $( '#health-check-issues-good' );

goodIssuesWrapper.toggleClass( 'hidden' );
$( this ).attr( 'aria-expanded', ! goodIssuesWrapper.hasClass( 'hidden' ) );
} );

/**
* Validates the Site Health test result format.
*
* @since 5.6.0
*
* @param {Object} issue
*
* @return {boolean}
*/
function validateIssueData( issue ) {
// Expected minimum format of a valid SiteHealth test response.
var minimumExpected = {
test: 'string',
label: 'string',
description: 'string'
},
passed = true,
key, value, subKey, subValue;

// If the issue passed is not an object, return a `false` state early.
if ( 'object' !== typeof( issue ) ) {
return false;
}

// Loop over expected data and match the data types.
for ( key in minimumExpected ) {
value = minimumExpected[ key ];

if ( 'object' === typeof( value ) ) {
for ( subKey in value ) {
subValue = value[ subKey ];

if ( 'undefined' === typeof( issue[ key ] ) ||
'undefined' === typeof( issue[ key ][ subKey ] ) ||
subValue !== typeof( issue[ key ][ subKey ] )
) {
passed = false;
}
}
} else {
if ( 'undefined' === typeof( issue[ key ] ) ||
value !== typeof( issue[ key ] )
) {
passed = false;
}
}
}

return passed;
}

/**
* Appends a new issue to the issue list.
*
* @since 5.2.0
*
* @param {Object} issue The issue data.
*/
function appendIssue( issue ) {
var template = wp.template( 'health-check-issue' ),
issueWrapper = $( '#health-check-issues-' + issue.status ),
heading,
count;

/*
* Validate the issue data format before using it.
* If the output is invalid, discard it.
*/
if ( ! validateIssueData( issue ) ) {
return false;
}

SiteHealth.site_status.issues[ issue.status ]++;

count = SiteHealth.site_status.issues[ issue.status ];

// If no test name is supplied, append a placeholder for markup references.
if ( typeof issue.test === 'undefined' ) {
issue.test = issue.status + count;
}

if ( 'critical' === issue.status ) {
heading = sprintf(
_n( '%s critical issue', '%s critical issues', count ),
'<span class="issue-count">' + count + '</span>'
);
} else if ( 'recommended' === issue.status ) {
heading = sprintf(
_n( '%s recommended improvement', '%s recommended improvements', count ),
'<span class="issue-count">' + count + '</span>'
);
} else if ( 'good' === issue.status ) {
heading = sprintf(
_n( '%s item with no issues detected', '%s items with no issues detected', count ),
'<span class="issue-count">' + count + '</span>'
);
}

if ( heading ) {
$( '.site-health-issue-count-title', issueWrapper ).html( heading );
}

$( '.issues', '#health-check-issues-' + issue.status ).append( template( issue ) );
}

/**
* Updates site health status indicator as asynchronous tests are run and returned.
*
* @since 5.2.0
*/
function recalculateProgression() {
var r, c, pct;
var $progress = $( '.site-health-progress' );
var $wrapper = $progress.closest( '.site-health-progress-wrapper' );
var $progressLabel = $( '.site-health-progress-label', $wrapper );
var $circle = $( '.site-health-progress svg #bar' );
var totalTests = parseInt( SiteHealth.site_status.issues.good, 0 ) +
parseInt( SiteHealth.site_status.issues.recommended, 0 ) +
( parseInt( SiteHealth.site_status.issues.critical, 0 ) * 1.5 );
var failedTests = ( parseInt( SiteHealth.site_status.issues.recommended, 0 ) * 0.5 ) +
( parseInt( SiteHealth.site_status.issues.critical, 0 ) * 1.5 );
var val = 100 - Math.ceil( ( failedTests / totalTests ) * 100 );

if ( 0 === totalTests ) {
$progress.addClass( 'hidden' );
return;
}

$wrapper.removeClass( 'loading' );

r = $circle.attr( 'r' );
c = Math.PI * ( r * 2 );

if ( 0 > val ) {
val = 0;
}
if ( 100 < val ) {
val = 100;
}

pct = ( ( 100 - val ) / 100 ) * c + 'px';

$circle.css( { strokeDashoffset: pct } );

if ( 1 > parseInt( SiteHealth.site_status.issues.critical, 0 ) ) {
$( '#health-check-issues-critical' ).addClass( 'hidden' );
}

if ( 1 > parseInt( SiteHealth.site_status.issues.recommended, 0 ) ) {
$( '#health-check-issues-recommended' ).addClass( 'hidden' );
}

if ( 80 <= val && 0 === parseInt( SiteHealth.site_status.issues.critical, 0 ) ) {
$wrapper.addClass( 'green' ).removeClass( 'orange' );

$progressLabel.text( __( 'Good' ) );
wp.a11y.speak( __( 'All site health tests have finished running. Your site is looking good, and the results are now available on the page.' ) );
} else {
$wrapper.addClass( 'orange' ).removeClass( 'green' );

$progressLabel.text( __( 'Should be improved' ) );
wp.a11y.speak( __( 'All site health tests have finished running. There are items that should be addressed, and the results are now available on the page.' ) );
}

if ( isStatusTab ) {
$.post(
ajaxurl,
{
'action': 'health-check-site-status-result',
'_wpnonce': SiteHealth.nonce.site_status_result,
'counts': SiteHealth.site_status.issues
}
);

if ( 100 === val ) {
$( '.site-status-all-clear' ).removeClass( 'hide' );
$( '.site-status-has-issues' ).addClass( 'hide' );
}
}
}

/**
* Queues the next asynchronous test when we're ready to run it.
*
* @since 5.2.0
*/
function maybeRunNextAsyncTest() {
var doCalculation = true;

if ( 1 <= SiteHealth.site_status.async.length ) {
$.each( SiteHealth.site_status.async, function() {
var data = {
'action': 'health-check-' + this.test.replace( '_', '-' ),
'_wpnonce': SiteHealth.nonce.site_status
};

if ( this.completed ) {
return true;
}

doCalculation = false;

this.completed = true;

if ( 'undefined' !== typeof( this.has_rest ) && this.has_rest ) {
wp.apiRequest( {
url: wp.url.addQueryArgs( this.test, { _locale: 'user' } ),
headers: this.headers
} )
.done( function( response ) {
/** This filter is documented in wp-admin/includes/class-wp-site-health.php */
appendIssue( wp.hooks.applyFilters( 'site_status_test_result', response ) );
} )
.fail( function( response ) {
var description;

if ( 'undefined' !== typeof( response.responseJSON ) && 'undefined' !== typeof( response.responseJSON.message ) ) {
description = response.responseJSON.message;
} else {
description = __( 'No details available' );
}

addFailedSiteHealthCheckNotice( this.url, description );
} )
.always( function() {
maybeRunNextAsyncTest();
} );
} else {
$.post(
ajaxurl,
data
).done( function( response ) {
/** This filter is documented in wp-admin/includes/class-wp-site-health.php */
appendIssue( wp.hooks.applyFilters( 'site_status_test_result', response.data ) );
} ).fail( function( response ) {
var description;

if ( 'undefined' !== typeof( response.responseJSON ) && 'undefined' !== typeof( response.responseJSON.message ) ) {
description = response.responseJSON.message;
} else {
description = __( 'No details available' );
}

addFailedSiteHealthCheckNotice( this.url, description );
} ).always( function() {
maybeRunNextAsyncTest();
} );
}

return false;
} );
}

if ( doCalculation ) {
recalculateProgression();
}
}

/**
* Add the details of a failed asynchronous test to the list of test results.
*
* @since 5.6.0
*/
function addFailedSiteHealthCheckNotice( url, description ) {
var issue;

issue = {
'status': 'recommended',
'label': __( 'A test is unavailable' ),
'badge': {
'color': 'red',
'label': __( 'Unavailable' )
},
'description': '<p>' + url + '</p><p>' + description + '</p>',
'actions': ''
};

/** This filter is documented in wp-admin/includes/class-wp-site-health.php */
appendIssue( wp.hooks.applyFilters( 'site_status_test_result', issue ) );
}

if ( 'undefined' !== typeof SiteHealth ) {
if ( 0 === SiteHealth.site_status.direct.length && 0 === SiteHealth.site_status.async.length ) {
recalculateProgression();
} else {
SiteHealth.site_status.issues = {
'good': 0,
'recommended': 0,
'critical': 0
};
}

if ( 0 < SiteHealth.site_status.direct.length ) {
$.each( SiteHealth.site_status.direct, function() {
appendIssue( this );
} );
}

if ( 0 < SiteHealth.site_status.async.length ) {
maybeRunNextAsyncTest();
} else {
recalculateProgression();
}
}

function getDirectorySizes() {
var timestamp = ( new Date().getTime() );

// After 3 seconds announce that we're still waiting for directory sizes.
var timeout = window.setTimeout( function() {
wp.a11y.speak( __( 'Please wait...' ) );
}, 3000 );

wp.apiRequest( {
path: '/wp-site-health/v1/directory-sizes'
} ).done( function( response ) {
updateDirSizes( response || {} );
} ).always( function() {
var delay = ( new Date().getTime() ) - timestamp;

$( '.health-check-wp-paths-sizes.spinner' ).css( 'visibility', 'hidden' );
recalculateProgression();

if ( delay > 3000 ) {
/*
* We have announced that we're waiting.
* Announce that we're ready after giving at least 3 seconds
* for the first announcement to be read out, or the two may collide.
*/
if ( delay > 6000 ) {
delay = 0;
} else {
delay = 6500 - delay;
}

window.setTimeout( function() {
wp.a11y.speak( __( 'All site health tests have finished running.' ) );
}, delay );
} else {
// Cancel the announcement.
window.clearTimeout( timeout );
}

$( document ).trigger( 'site-health-info-dirsizes-done' );
} );
}

function updateDirSizes( data ) {
var copyButton = $( 'button.button.copy-button' );
var clipboardText = copyButton.attr( 'data-clipboard-text' );

$.each( data, function( name, value ) {
var text = value.debug || value.size;

if ( typeof text !== 'undefined' ) {
clipboardText = clipboardText.replace( name + ': loading...', name + ': ' + text );
}
} );

copyButton.attr( 'data-clipboard-text', clipboardText );

pathsSizesSection.find( 'td[class]' ).each( function( i, element ) {
var td = $( element );
var name = td.attr( 'class' );

if ( data.hasOwnProperty( name ) && data[ name ].size ) {
td.text( data[ name ].size );
}
} );
}

if ( isDebugTab ) {
if ( pathsSizesSection.length ) {
getDirectorySizes();
} else {
recalculateProgression();
}
}

// Trigger a class toggle when the extended menu button is clicked.
$( '.health-check-offscreen-nav-wrapper' ).on( 'click', function() {
$( this ).toggleClass( 'visible' );
} );
} );