/* global kirkiL10n, kirki */
wp.customize.controlConstructor['kirki-typography'] = wp.customize.kirkiDynamicControl.extend({

	initKirkiControl: function() {

		'use strict';

		var control = this,
		    value   = control.setting._value,
		    picker;

		control.renderFontSelector();
		control.renderBackupFontSelector();
		control.renderVariantSelector();
		control.renderSubsetSelector();

		// Font-size.
		if ( control.params['default']['font-size'] ) {
			this.container.on( 'change keyup paste', '.font-size input', function() {
				control.saveValue( 'font-size', jQuery( this ).val() );
			});
		}

		// Line-height.
		if ( control.params['default']['line-height'] ) {
			this.container.on( 'change keyup paste', '.line-height input', function() {
				control.saveValue( 'line-height', jQuery( this ).val() );
			});
		}

		// Margin-top.
		if ( control.params['default']['margin-top'] ) {
			this.container.on( 'change keyup paste', '.margin-top input', function() {
				control.saveValue( 'margin-top', jQuery( this ).val() );
			});
		}

		// Margin-bottom.
		if ( control.params['default']['margin-bottom'] ) {
			this.container.on( 'change keyup paste', '.margin-bottom input', function() {
				control.saveValue( 'margin-bottom', jQuery( this ).val() );
			});
		}

		// Letter-spacing.
		if ( control.params['default']['letter-spacing'] ) {
			value['letter-spacing'] = ( jQuery.isNumeric( value['letter-spacing'] ) ) ? value['letter-spacing'] + 'px' : value['letter-spacing'];
			this.container.on( 'change keyup paste', '.letter-spacing input', function() {
				value['letter-spacing'] = ( jQuery.isNumeric( jQuery( this ).val() ) ) ? jQuery( this ).val() + 'px' : jQuery( this ).val();
				control.saveValue( 'letter-spacing', value['letter-spacing'] );
			});
		}

		// Word-spacing.
		if ( control.params['default']['word-spacing'] ) {
			this.container.on( 'change keyup paste', '.word-spacing input', function() {
				control.saveValue( 'word-spacing', jQuery( this ).val() );
			});
		}

		// Text-align.
		if ( control.params['default']['text-align'] ) {
			this.container.on( 'change', '.text-align input', function() {
				control.saveValue( 'text-align', jQuery( this ).val() );
			});
		}

		// Text-transform.
		if ( control.params['default']['text-transform'] ) {
			jQuery( control.selector + ' .text-transform select' ).selectWoo().on( 'change', function() {
				control.saveValue( 'text-transform', jQuery( this ).val() );
			});
		}

		// Text-decoration.
		if ( control.params['default']['text-decoration'] ) {
			jQuery( control.selector + ' .text-decoration select' ).selectWoo().on( 'change', function() {
				control.saveValue( 'text-decoration', jQuery( this ).val() );
			});
		}

		// Color.
		if ( control.params['default'].color ) {
			picker = this.container.find( '.kirki-color-control' );
			picker.wpColorPicker({
				change: function() {
					setTimeout( function() {
						control.saveValue( 'color', picker.val() );
					}, 100 );
				}
			});
		}
	},

	/**
	 * Adds the font-families to the font-family dropdown
	 * and instantiates selectWoo.
	 */
	renderFontSelector: function() {

		var control         = this,
		    selector        = control.selector + ' .font-family select',
		    data            = [],
		    standardFonts   = [],
		    googleFonts     = [],
		    value           = control.setting._value,
		    fonts           = control.getFonts(),
		    fontSelect;

		// Format standard fonts as an array.
		if ( ! _.isUndefined( fonts.standard ) ) {
			_.each( fonts.standard, function( font ) {
				standardFonts.push({
					id: font.family.replace( /"/g, '&#39' ),
					text: font.label
				});
			});
		}

		// Format google fonts as an array.
		if ( ! _.isUndefined( fonts.google ) ) {
			_.each( fonts.google, function( font ) {
				googleFonts.push({
					id: font.family,
					text: font.family
				});
			});
		}

		// Combine forces and build the final data.
		data = [
			{ text: kirkiL10n.standardFonts, children: standardFonts },
			{ text: kirkiL10n.googleFonts, children: googleFonts }
		];

		// Instantiate selectWoo with the data.
		fontSelect = jQuery( selector ).selectWoo({
			data: data
		});

		// Set the initial value.
		if ( value['font-family'] ) {
			fontSelect.val( value['font-family'].replace( /'/g, '"' ) ).trigger( 'change' );
		}

		// When the value changes
		fontSelect.on( 'change', function() {

			// Set the value.
			control.saveValue( 'font-family', jQuery( this ).val() );

			// Re-init the font-backup selector.
			control.renderBackupFontSelector();

			// Re-init variants selector.
			control.renderVariantSelector();

			// Re-init subsets selector.
			control.renderSubsetSelector();
		});
	},

	/**
	 * Adds the font-families to the font-family dropdown
	 * and instantiates selectWoo.
	 */
	renderBackupFontSelector: function() {

		var control       = this,
		    selector      = control.selector + ' .font-backup select',
		    standardFonts = [],
		    value         = control.setting._value,
		    fontFamily    = value['font-family'],
		    fonts         = control.getFonts(),
		    fontSelect;

		if ( _.isUndefined( value['font-backup'] ) || null === value['font-backup'] ) {
			value['font-backup'] = '';
		}

		// Hide if we're not on a google-font.
		if ( 'google' !== kirki.util.webfonts.getFontType( fontFamily ) ) {
			jQuery( control.selector + ' .font-backup' ).hide();
			return;
		}
		jQuery( control.selector + ' .font-backup' ).show();

		// Format standard fonts as an array.
		if ( ! _.isUndefined( fonts.standard ) ) {
			_.each( fonts.standard, function( font ) {
				standardFonts.push({
					id: font.family.replace( /"/g, '&#39' ),
					text: font.label
				});
			});
		}

		// Instantiate selectWoo with the data.
		fontSelect = jQuery( selector ).selectWoo({
			data: standardFonts
		});

		// Set the initial value.
		if ( 'undefined' !== typeof value['font-backup'] ) {
			fontSelect.val( value['font-backup'].replace( /'/g, '"' ) ).trigger( 'change' );
		}

		// When the value changes
		fontSelect.on( 'change', function() {

			// Set the value.
			control.saveValue( 'font-backup', jQuery( this ).val() );
		});
	},

	/**
	 * Renders the variants selector using selectWoo
	 * Displays font-variants for the currently selected font-family.
	 */
	renderVariantSelector: function() {

		var control    = this,
		    value      = control.setting._value,
		    fontFamily = value['font-family'],
		    selector   = control.selector + ' .variant select',
		    data       = [],
		    isValid    = false,
		    fontType   = kirki.util.webfonts.getFontType( fontFamily ),
		    variants   = ['regular', 'italic', '700', '700italic'],
		    fontWeight,
		    variantSelector,
		    fontStyle;

		if ( 'google' === fontType ) {
			variants = kirki.util.webfonts.google.getVariants( fontFamily );
		}

		jQuery( control.selector + ' .variant' ).show();
		_.each( variants, function( variant ) {
			if ( value.variant === variant ) {
				isValid = true;
			}
			data.push({
				id: variant,
				text: variant
			});
		});
		if ( ! isValid ) {
			value.variant = 'regular';
		}

		if ( jQuery( selector ).hasClass( 'select2-hidden-accessible' ) ) {
			jQuery( selector ).selectWoo( 'destroy' );
			jQuery( selector ).empty();
		}

		// Instantiate selectWoo with the data.
		variantSelector = jQuery( selector ).selectWoo({
			data: data
		});
		variantSelector.val( value.variant ).trigger( 'change' );
		variantSelector.on( 'change', function() {
			control.saveValue( 'variant', jQuery( this ).val() );

			fontWeight = ( ! _.isString( value.variant ) ) ? '400' : value.variant.match( /\d/g );
			fontWeight = ( ! _.isObject( fontWeight ) ) ? '400' : fontWeight.join( '' );
			fontStyle  = ( -1 !== value.variant.indexOf( 'italic' ) ) ? 'italic' : 'normal';

			control.saveValue( 'font-weight', fontWeight );
			control.saveValue( 'font-style', fontStyle );
		});
	},

	/**
	 * Renders the subsets selector using selectWoo
	 * Displays font-subsets for the currently selected font-family.
	 */
	renderSubsetSelector: function() {

		var control    = this,
		    value      = control.setting._value,
		    fontFamily = value['font-family'],
		    subsets    = kirki.util.webfonts.google.getSubsets( fontFamily ),
		    selector   = control.selector + ' .subsets select',
		    data       = [],
		    validValue = value.subsets,
		    subsetSelector;

		if ( false !== subsets ) {
			jQuery( control.selector + ' .subsets' ).show();
			_.each( subsets, function( subset ) {

				if ( _.isObject( validValue ) ) {
					if ( -1 === validValue.indexOf( subset ) ) {
						validValue = _.reject( validValue, function( subValue ) {
							return subValue === subset;
						});
					}
				}

				data.push({
					id: subset,
					text: subset
				});
			});

		} else {
			jQuery( control.selector + ' .subsets' ).hide();
		}

		if ( jQuery( selector ).hasClass( 'select2-hidden-accessible' ) ) {
			jQuery( selector ).selectWoo( 'destroy' );
			jQuery( selector ).empty();
		}

		// Instantiate selectWoo with the data.
		subsetSelector = jQuery( selector ).selectWoo({
			data: data
		});
		subsetSelector.val( validValue ).trigger( 'change' );
		subsetSelector.on( 'change', function() {
			control.saveValue( 'subsets', jQuery( this ).val() );
		});
	},

	/**
	 * Get fonts.
	 */
	getFonts: function() {
		var control            = this,
		    initialGoogleFonts = kirki.util.webfonts.google.getFonts(),
		    googleFonts        = {},
		    googleFontsSort    = 'alpha',
			googleFontsNumber  = 0,
		    standardFonts      = {};

		// Get google fonts.
		if ( ! _.isEmpty( control.params.choices.fonts.google ) ) {
			if ( 'alpha' === control.params.choices.fonts.google[0] || 'popularity' === control.params.choices.fonts.google[0] || 'trending' === control.params.choices.fonts.google[0] ) {
				googleFontsSort = control.params.choices.fonts.google[0];
				if ( ! isNaN( control.params.choices.fonts.google[1] ) ) {
					googleFontsNumber = parseInt( control.params.choices.fonts.google[1], 10 );
				}
				googleFonts = kirki.util.webfonts.google.getFonts( googleFontsSort, '', googleFontsNumber );

			} else {
				_.each( control.params.choices.fonts.google, function( fontName ) {
					if ( 'undefined' !== typeof initialGoogleFonts[ fontName ] && ! _.isEmpty( initialGoogleFonts[ fontName ] ) ) {
						googleFonts[ fontName ] = initialGoogleFonts[ fontName ];
					}
				} );
			}
		} else {
			googleFonts = kirki.util.webfonts.google.getFonts( googleFontsSort, '', googleFontsNumber );
		}

		// Get standard fonts.
		if ( ! _.isEmpty( control.params.choices.fonts.standard ) ) {
			_.each( control.params.choices.fonts.standard, function( fontName ) {
				if ( 'undefined' !== typeof kirki.util.webfonts.standard.fonts[ fontName ] && ! _.isEmpty( kirki.util.webfonts.standard.fonts[ fontName ] ) ) {
					standardFonts[ fontName ] = {};
					if ( 'undefined' !== kirki.util.webfonts.standard.fonts[ fontName ].stack && ! _.isEmpty( kirki.util.webfonts.standard.fonts[ fontName ].stack ) ) {
						standardFonts[ fontName ].family = kirki.util.webfonts.standard.fonts[ fontName ].stack;
					} else {
						standardFonts[ fontName ].family = googleFonts[ fontName ];
					}
					if ( 'undefined' !== kirki.util.webfonts.standard.fonts[ fontName ].label && ! _.isEmpty( kirki.util.webfonts.standard.fonts[ fontName ].label ) ) {
						standardFonts[ fontName ].label = kirki.util.webfonts.standard.fonts[ fontName ].label;
					} else if ( ! _.isEmpty( standardFonts[ fontName ] ) ) {
						standardFonts[ fontName ].label = standardFonts[ fontName ];
					}
				} else {
					standardFonts[ fontName ] = {
						family: fontName,
						label: fontName
					};
				}
			} );
		} else {
			_.each( kirki.util.webfonts.standard.fonts, function( font, id ) {
				standardFonts[ id ] = {
					family: font.stack,
					label: font.label
				};
			} );
		}
		return {
			google: googleFonts,
			standard: standardFonts
		};
	},

	/**
	 * Saves the value.
	 */
	saveValue: function( property, value ) {

		var control = this,
		    input   = control.container.find( '.typography-hidden-value' ),
		    val     = control.setting._value;

		val[ property ] = value;

		jQuery( input ).attr( 'value', JSON.stringify( val ) ).trigger( 'change' );
		control.setting.set( val );
	}
});