/* global ajaxurl, pwsL10n, userProfileL10n */

(function($) {

	var updateLock = false,

		$pass1Row,

		$pass1Wrap,

		$pass1,

		$pass1Text,

		$pass1Label,

		$pass2,

		$weakRow,

		$weakCheckbox,

		$toggleButton,

		$submitButtons,

		$submitButton,

		currentPass,

		inputEvent;

	/*

	 * Use feature detection to determine whether password inputs should use

	 * the `keyup` or `input` event. Input is preferred but lacks support

	 * in legacy browsers.

	 */

	if ( 'oninput' in document.createElement( 'input' ) ) {

		inputEvent = 'input';

	} else {

		inputEvent = 'keyup';

	}

	function generatePassword() {

		if ( typeof zxcvbn !== 'function' ) {

			setTimeout( generatePassword, 50 );

			return;

		} else if ( ! $pass1.val() ) {

			// zxcvbn loaded before user entered password.

			$pass1.val( $pass1.data( 'pw' ) );

			$pass1.trigger( 'pwupdate' );

			showOrHideWeakPasswordCheckbox();

		}

		else {

			// zxcvbn loaded after the user entered password, check strength.

			check_pass_strength();

			showOrHideWeakPasswordCheckbox();

		}

		if ( 1 !== parseInt( $toggleButton.data( 'start-masked' ), 10 ) ) {

			$pass1Wrap.addClass( 'show-password' );

		} else {

			$toggleButton.trigger( 'click' );

		}

		// Once zxcvbn loads, passwords strength is known.

		$( '#pw-weak-text-label' ).html( userProfileL10n.warnWeak );

	}

	function bindPass1() {

		currentPass = $pass1.val();

		$pass1Wrap = $pass1.parent();

		$pass1Text = $( '<input type="text"/>' )

			.attr( {

				'id':           'pass1-text',

				'name':         'pass1-text',

				'autocomplete': 'off'

			} )

			.addClass( $pass1[0].className )

			.data( 'pw', $pass1.data( 'pw' ) )

			.val( $pass1.val() )

			.on( inputEvent, function () {

				if ( $pass1Text.val() === currentPass ) {

					return;

				}

				$pass2.val( $pass1Text.val() );

				$pass1.val( $pass1Text.val() ).trigger( 'pwupdate' );

				currentPass = $pass1Text.val();

			} );

		$pass1.after( $pass1Text );

		if ( 1 === parseInt( $pass1.data( 'reveal' ), 10 ) ) {

			generatePassword();

		}

		$pass1.on( inputEvent + ' pwupdate', function () {

			if ( $pass1.val() === currentPass ) {

				return;

			}

			currentPass = $pass1.val();

			if ( $pass1Text.val() !== currentPass ) {

				$pass1Text.val( currentPass );

			}

			$pass1.add( $pass1Text ).removeClass( 'short bad good strong' );

			showOrHideWeakPasswordCheckbox();

		} );

	}

	function resetToggle() {

		$toggleButton

			.data( 'toggle', 0 )

			.attr({

				'aria-label': userProfileL10n.ariaHide

			})

			.find( '.text' )

				.text( userProfileL10n.hide )

			.end()

			.find( '.dashicons' )

				.removeClass( 'dashicons-visibility' )

				.addClass( 'dashicons-hidden' );

		$pass1Text.focus();

		$pass1Label.attr( 'for', 'pass1-text' );

	}

	function bindToggleButton() {

		$toggleButton = $pass1Row.find('.wp-hide-pw');

		$toggleButton.show().on( 'click', function () {

			if ( 1 === parseInt( $toggleButton.data( 'toggle' ), 10 ) ) {

				$pass1Wrap.addClass( 'show-password' );

				resetToggle();

				if ( ! _.isUndefined( $pass1Text[0].setSelectionRange ) ) {

					$pass1Text[0].setSelectionRange( 0, 100 );

				}

			} else {

				$pass1Wrap.removeClass( 'show-password' );

				$toggleButton

					.data( 'toggle', 1 )

					.attr({

						'aria-label': userProfileL10n.ariaShow

					})

					.find( '.text' )

						.text( userProfileL10n.show )

					.end()

					.find( '.dashicons' )

						.removeClass('dashicons-hidden')

						.addClass('dashicons-visibility');

				$pass1.focus();

				$pass1Label.attr( 'for', 'pass1' );

				if ( ! _.isUndefined( $pass1[0].setSelectionRange ) ) {

					$pass1[0].setSelectionRange( 0, 100 );

				}

			}

		});

	}

	function bindPasswordForm() {

		var $passwordWrapper,

			$generateButton,

			$cancelButton;

		$pass1Row = $('.user-pass1-wrap');

		$pass1Label = $pass1Row.find('th label').attr( 'for', 'pass1-text' );

		// hide this

		$('.user-pass2-wrap').hide();

		$submitButton = $( '#submit, #wp-submit' ).on( 'click', function () {

			updateLock = false;

		});

		$submitButtons = $submitButton.add( ' #createusersub' );

		$weakRow = $( '.pw-weak' );

		$weakCheckbox = $weakRow.find( '.pw-checkbox' );

		$weakCheckbox.change( function() {

			$submitButtons.prop( 'disabled', ! $weakCheckbox.prop( 'checked' ) );

		} );

		$pass1 = $('#pass1');

		if ( $pass1.length ) {

			bindPass1();

		}

		/**

		 * Fix a LastPass mismatch issue, LastPass only changes pass2.

		 *

		 * This fixes the issue by copying any changes from the hidden

		 * pass2 field to the pass1 field, then running check_pass_strength.

		 */

		$pass2 = $('#pass2').on( inputEvent, function () {

			if ( $pass2.val().length > 0 ) {

				$pass1.val( $pass2.val() );

				$pass2.val('');

				currentPass = '';

				$pass1.trigger( 'pwupdate' );

			}

		} );

		// Disable hidden inputs to prevent autofill and submission.

		if ( $pass1.is( ':hidden' ) ) {

			$pass1.prop( 'disabled', true );

			$pass2.prop( 'disabled', true );

			$pass1Text.prop( 'disabled', true );

		}

		$passwordWrapper = $pass1Row.find( '.wp-pwd' );

		$generateButton  = $pass1Row.find( 'button.wp-generate-pw' );

		bindToggleButton();

		if ( $generateButton.length ) {

			$passwordWrapper.hide();

		}

		$generateButton.show();

		$generateButton.on( 'click', function () {

			updateLock = true;

			$generateButton.hide();

			$passwordWrapper.show();

			// Enable the inputs when showing.

			$pass1.attr( 'disabled', false );

			$pass2.attr( 'disabled', false );

			$pass1Text.attr( 'disabled', false );

			if ( $pass1Text.val().length === 0 ) {

				generatePassword();

			}

			_.defer( function() {

				$pass1Text.focus();

				if ( ! _.isUndefined( $pass1Text[0].setSelectionRange ) ) {

					$pass1Text[0].setSelectionRange( 0, 100 );

				}

			}, 0 );

		} );

		$cancelButton = $pass1Row.find( 'button.wp-cancel-pw' );

		$cancelButton.on( 'click', function () {

			updateLock = false;

			// Clear any entered password.

			$pass1Text.val( '' );

			// Generate a new password.

			wp.ajax.post( 'generate-password' )

				.done( function( data ) {

					$pass1.data( 'pw', data );

				} );

			$generateButton.show();

			$passwordWrapper.hide();

			$weakRow.hide( 0, function () {

				$weakCheckbox.removeProp( 'checked' );

			} );

			// Disable the inputs when hiding to prevent autofill and submission.

			$pass1.prop( 'disabled', true );

			$pass2.prop( 'disabled', true );

			$pass1Text.prop( 'disabled', true );

			resetToggle();

			if ( $pass1Row.closest( 'form' ).is( '#your-profile' ) ) {

				// Clear password field to prevent update

				$pass1.val( '' ).trigger( 'pwupdate' );

				$submitButtons.prop( 'disabled', false );

			}

		} );

		$pass1Row.closest( 'form' ).on( 'submit', function () {

			updateLock = false;

			$pass1.prop( 'disabled', false );

			$pass2.prop( 'disabled', false );

			$pass2.val( $pass1.val() );

			$pass1Wrap.removeClass( 'show-password' );

		});

	}

		var pass1 = $('#pass1').val(), strength;

			$('#pass-strength-result').html( ' ' );

		strength = wp.passwordStrength.meter( pass1, wp.passwordStrength.userInputBlacklist(), pass1 );

			case -1:

				$( '#pass-strength-result' ).addClass( 'bad' ).html( pwsL10n.unknown );

				break;

	function showOrHideWeakPasswordCheckbox() {

		var passStrength = $('#pass-strength-result')[0];

		if ( passStrength.className ) {

			$pass1.add( $pass1Text ).addClass( passStrength.className );

			if ( $( passStrength ).is( '.short, .bad' ) ) {

				if ( ! $weakCheckbox.prop( 'checked' ) ) {

					$submitButtons.prop( 'disabled', true );

				}

				$weakRow.show();

			} else {

				$submitButtons.prop( 'disabled', false );

				$weakRow.hide();

			}

		}

	}

			select       = $( '#display_name' ),

			current_name = select.val(),

			greeting     = $( '#wp-admin-bar-my-account' ).find( '.display-name' );

		$('#pass1').val('').on( inputEvent + ' pwupdate', check_pass_strength );