<?php

	/**
	 * FusionRedux Framework API Class
	 * Makes instantiating a FusionRedux object an absolute piece of cake.
	 *
	 * @package     FusionRedux_Framework
	 * @author      Dovy Paukstys
	 * @subpackage  Core
	 */

	// Exit if accessed directly
	if ( ! defined( 'ABSPATH' ) ) {
		exit;
	}

	// Don't duplicate me!
	if ( ! class_exists( 'FusionRedux' ) ) {

		/**
		 * FusionRedux API Class
		 * Simple API for FusionRedux Framework
		 *
		 * @since       1.0.0
		 */
		class FusionRedux {

			public static $fields = array();
			public static $sections = array();
			public static $help = array();
			public static $args = array();
			public static $priority = array();
			public static $errors = array();
			public static $init = array();
			public static $extensions = array();
			public static $uses_extensions = array();

			public function __call( $closure, $args ) {
				return call_user_func_array( $this->{$closure}->bindTo( $this ), $args );
			}

			public function __toString() {
				return call_user_func( $this->{"__toString"}->bindTo( $this ) );
			}

			public static function load() {
				add_action( 'after_setup_theme', array( 'FusionRedux', 'createFusionRedux' ) );
				add_action( 'init', array( 'FusionRedux', 'createFusionRedux' ) );
				add_action( 'switch_theme', array( 'FusionRedux', 'createFusionRedux' ) );
			}

			public static function init( $opt_name = "" ) {
				if ( ! empty( $opt_name ) ) {
					self::loadFusionRedux( $opt_name );
					remove_action( 'setup_theme', array( 'FusionRedux', 'createFusionRedux' ) );
				}
			}

			public static function loadExtensions( $FusionReduxFramework ) {
				if ( $instanceExtensions = self::getExtensions( $FusionReduxFramework->args['opt_name'], "" ) ) {
					foreach ( $instanceExtensions as $name => $extension ) {
						if ( ! class_exists( $extension['class'] ) ) {
							// In case you wanted override your override, hah.
							$extension['path'] = apply_filters( 'fusionredux/extension/' . $FusionReduxFramework->args['opt_name'] . '/' . $name, $extension['path'] );
							if ( file_exists( $extension['path'] ) ) {
								require_once wp_normalize_path( $extension['path'] );
							}
						}
						if ( ! isset( $FusionReduxFramework->extensions[ $name ] ) ) {
							if ( class_exists( $extension['class'] ) ) {
								$FusionReduxFramework->extensions[ $name ] = new $extension['class']( $FusionReduxFramework );
							} else {
								echo '<div id="message" class="error"><p>No class named <strong>' . $extension['class'] . '</strong> exists. Please verify your extension path.</p></div>';
							}

						}
					}
				}
			}

			public static function extensionPath( $extension, $folder = true ) {
				if ( ! isset( FusionRedux::$extensions[ $extension ] ) ) {
					return;
				}
				$path = end( FusionRedux::$extensions[ $extension ] );
				if ( ! $folder ) {
					return $path;
				}

				return str_replace( 'extension_' . $extension . '.php', '', $path );
			}


			public static function loadFusionRedux( $opt_name = "" ) {

				if ( empty( $opt_name ) ) {
					return;
				}

				$check = FusionReduxFrameworkInstances::get_instance( $opt_name );
				if ( isset( $check->apiHasRun ) ) {
					return;
				}

				$args     = self::constructArgs( $opt_name );
				$sections = self::constructSections( $opt_name );
				if ( ! class_exists( 'FusionReduxFramework' ) ) {
					echo '<div id="message" class="error"><p>FusionRedux Framework is <strong>not installed</strong>. Please install it.</p></div>';

					return;
				}
				if ( isset( self::$uses_extensions[ $opt_name ] ) && ! empty( self::$uses_extensions[ $opt_name ] ) ) {
					add_action( "fusionredux/extensions/{$opt_name}/before", array( 'FusionRedux', 'loadExtensions' ), 0 );
				}

				$fusionredux                   = new FusionReduxFramework( $sections, $args );
				$fusionredux->apiHasRun        = 1;
				self::$init[ $opt_name ] = 1;
				if ( isset( $fusionredux->args['opt_name'] ) && $fusionredux->args['opt_name'] != $opt_name ) {
					self::$init[ $fusionredux->args['opt_name'] ] = 1;
				}

			}

			public static function createFusionRedux() {
				foreach ( self::$sections as $opt_name => $theSections ) {
					if ( ! self::$init[ $opt_name ] ) {
						self::loadFusionRedux( $opt_name );
					}
				}
			}

			public static function constructArgs( $opt_name ) {
				$args = isset( self::$args[ $opt_name ] ) ? self::$args[ $opt_name ] : array();

				$args['opt_name'] = $opt_name;
				if ( ! isset( $args['menu_title'] ) ) {
					$args['menu_title'] = ucfirst( $opt_name ) . ' Options';
				}
				if ( ! isset( $args['page_title'] ) ) {
					$args['page_title'] = ucfirst( $opt_name ) . ' Options';
				}
				if ( ! isset( $args['page_slug'] ) ) {
					$args['page_slug'] = $opt_name . '_options';
				}

				return $args;
			}

			public static function constructSections( $opt_name ) {
				$sections = array();
				if ( ! isset( self::$sections[ $opt_name ] ) ) {
					return $sections;

				}
				foreach ( self::$sections[ $opt_name ] as $section_id => $section ) {
					$section['fields'] = self::constructFields( $opt_name, $section_id );
					$p                 = $section['priority'];
					while ( isset( $sections[ $p ] ) ) {
						$p++;
					}
					$sections[ $p ] = $section;
				}
				ksort( $sections );

				return $sections;
			}

			public static function constructFields( $opt_name = "", $section_id = "" ) {
				$fields = array();
				if ( ! empty( self::$fields[ $opt_name ] ) ) {
					foreach ( self::$fields[ $opt_name ] as $key => $field ) {
						if ( $field['section_id'] == $section_id ) {
							$p = $field['priority'];
							while ( isset( $fields[ $p ] ) ) {
								echo $p ++;
							}
							$fields[ $p ] = $field;
						}
					}
				}
				ksort( $fields );

				return $fields;
			}

			public static function getSection( $opt_name = '', $id = '' ) {
				self::check_opt_name( $opt_name );
				if ( ! empty( $opt_name ) && ! empty( $id ) ) {
					if ( ! isset( self::$sections[ $opt_name ][ $id ] ) ) {
						$id = strtolower( sanitize_html_class( $id ) );
					}

					return isset( self::$sections[ $opt_name ][ $id ] ) ? self::$sections[ $opt_name ][ $id ] : false;
				}

				return false;
			}

			public static function setSections( $opt_name = '', $sections = array() ) {
				self::check_opt_name( $opt_name );
				if ( ! empty( $sections ) ) {
					foreach ( $sections as $section ) {
						FusionRedux::setSection( $opt_name, $section );
					}
				}
			}

			public static function getSections( $opt_name = '' ) {
				self::check_opt_name( $opt_name );
				if ( ! empty( self::$sections[ $opt_name ] ) ) {
					return self::$sections[ $opt_name ];
				}

				return array();
			}

			public static function removeSection( $opt_name = '', $id = "", $fields = false ) {
				if ( ! empty( $opt_name ) && ! empty( $id ) ) {
					if ( isset( self::$sections[ $opt_name ][ $id ] ) ) {
						$priority = '';

						foreach ( self::$sections[ $opt_name ] as $key => $section ) {
							if ( $key == $id ) {
								$priority = $section['priority'];
								self::$priority[ $opt_name ]['sections'] --;
								unset( self::$sections[ $opt_name ][ $id ] );
								continue;
							}
							if ( $priority != "" ) {
								$newPriority                         = $section['priority'];
								$section['priority']                 = $priority;
								self::$sections[ $opt_name ][ $key ] = $section;
								$priority                            = $newPriority;
							}
						}

						if ( isset( self::$fields[ $opt_name ] ) && ! empty( self::$fields[ $opt_name ] ) && $fields == true ) {
							foreach ( self::$fields[ $opt_name ] as $key => $field ) {
								if ( $field['section_id'] == $id ) {
									unset( self::$fields[ $opt_name ][ $key ] );
								}
							}
						}
					}
				}
			}

			public static function setSection( $opt_name = '', $section = array() ) {
				self::check_opt_name( $opt_name );
				if ( empty( $section ) ) {
					return;
				}
				if ( ! isset( $section['id'] ) ) {
					if ( isset( $section['type'] ) && $section['type'] == "divide" ) {
						$section['id'] = time();
					} else {
						if ( isset( $section['title'] ) ) {
							$section['id'] = strtolower( sanitize_title( $section['title'] ) );
						} else {
							$section['id'] = time();
						}
					}
					if ( ! isset( $section['id'] ) ) {
						print_r( $section );
						echo "DOVY";
					}

					if ( isset( self::$sections[ $opt_name ][ $section['id'] ] ) ) {
						$orig = $section['id'];
						$i    = 0;
						while ( isset( self::$sections[ $opt_name ][ $section['id'] ] ) ) {
							$section['id'] = $orig . '_' . $i;
						}
					}
				}

				if ( ! empty( $opt_name ) && is_array( $section ) && ! empty( $section ) ) {
					if ( ! isset( $section['id'] ) && ! isset( $section['title'] ) ) {
						self::$errors[ $opt_name ]['section']['missing_title'] = "Unable to create a section due to missing id and title.";

						return;
					}
					if ( ! isset( $section['priority'] ) ) {
						$section['priority'] = self::getPriority( $opt_name, 'sections' );
					}
					if ( isset( $section['fields'] ) ) {
						if ( ! empty( $section['fields'] ) && is_array( $section['fields'] ) ) {
							self::processFieldsArray( $opt_name, $section['id'], $section['fields'] );
						}
						unset( $section['fields'] );
					}
					self::$sections[ $opt_name ][ $section['id'] ] = $section;
				} else {
					self::$errors[ $opt_name ]['section']['empty'] = "Unable to create a section due an empty section array or the section variable passed was not an array.";

					return;
				}
			}

			public static function hideSection( $opt_name = '', $id = '', $hide = true ) {
				self::check_opt_name( $opt_name );

				if ( ! empty( $opt_name ) && ! empty( $id ) ) {
					if ( isset ( self::$sections[ $opt_name ][ $id ] ) ) {
						self::$sections[ $opt_name ][ $id ]['hidden'] = $hide;
					}
				}
			}

			public static function processFieldsArray( $opt_name = "", $section_id = "", $fields = array() ) {
				if ( ! empty( $opt_name ) && ! empty( $section_id ) && is_array( $fields ) && ! empty( $fields ) ) {
					foreach ( $fields as $field ) {
						if ( ! is_array( $field ) ) {
							continue;
						}
						$field['section_id'] = $section_id;
						self::setField( $opt_name, $field );
					}
				}
			}

			public static function getField( $opt_name = '', $id = '' ) {
				self::check_opt_name( $opt_name );
				if ( ! empty( $opt_name ) && ! empty( $id ) ) {
					return isset( self::$fields[ $opt_name ][ $id ] ) ? self::$fields[ $opt_name ][ $id ] : false;
				}

				return false;
			}

			public static function hideField( $opt_name = '', $id = '', $hide = true ) {
				self::check_opt_name( $opt_name );

				if ( ! empty( $opt_name ) && ! empty( $id ) ) {
					if ( isset ( self::$fields[ $opt_name ][ $id ] ) ) {
						if ( ! $hide ) {
							self::$fields[ $opt_name ][ $id ]['class'] = str_replace( 'hidden', '', self::$fields[ $opt_name ][ $id ]['class'] );
						} else {
							self::$fields[ $opt_name ][ $id ]['class'] .= 'hidden';
						}
					}
				}
			}

			public static function setField( $opt_name = '', $field = array() ) {
				self::check_opt_name( $opt_name );

				if ( ! empty( $opt_name ) && is_array( $field ) && ! empty( $field ) ) {

					if ( ! isset( $field['priority'] ) ) {
						$field['priority'] = self::getPriority( $opt_name, 'fields' );
					}
					if ( isset( $field['id'] ) ) {
						self::$fields[ $opt_name ][ $field['id'] ] = $field;
					}
				}
			}

			public static function removeField( $opt_name = '', $id = '' ) {
				self::check_opt_name( $opt_name );

				if ( ! empty( $opt_name ) && ! empty( $id ) ) {
					if ( isset( self::$fields[ $opt_name ][ $id ] ) ) {
						foreach ( self::$fields[ $opt_name ] as $key => $field ) {
							if ( $key == $id ) {
								$priority = $field['priority'];
								self::$priority[ $opt_name ]['fields'] --;
								unset( self::$fields[ $opt_name ][ $id ] );
								continue;
							}
							if ( isset( $priority ) && $priority != "" ) {
								$newPriority                       = $field['priority'];
								$field['priority']                 = $priority;
								self::$fields[ $opt_name ][ $key ] = $field;
								$priority                          = $newPriority;
							}
						}
					}
				}

				return false;
			}

			public static function setHelpTab( $opt_name = "", $tab = array() ) {
				self::check_opt_name( $opt_name );
				if ( ! empty( $opt_name ) && ! empty( $tab ) ) {
					if ( ! isset( self::$args[ $opt_name ]['help_tabs'] ) ) {
						self::$args[ $opt_name ]['help_tabs'] = array();
					}
					if ( isset( $tab['id'] ) ) {
						self::$args[ $opt_name ]['help_tabs'][] = $tab;
					} else if ( is_array( end( $tab ) ) ) {
						foreach ( $tab as $tab_item ) {
							self::$args[ $opt_name ]['help_tabs'][] = $tab_item;
						}
					}
				}
			}

			public static function setHelpSidebar( $opt_name = "", $content = "" ) {
				self::check_opt_name( $opt_name );
				if ( ! empty( $opt_name ) && ! empty( $content ) ) {
					self::$args[ $opt_name ]['help_sidebar'] = $content;
				}
			}

			public static function setArgs( $opt_name = "", $args = array() ) {
				self::check_opt_name( $opt_name );
				if ( ! empty( $opt_name ) && ! empty( $args ) && is_array( $args ) ) {
					if ( isset( self::$args[ $opt_name ] ) && isset( self::$args[ $opt_name ]['clearArgs'] ) ) {
						self::$args[ $opt_name ] = array();
					}
					self::$args[ $opt_name ] = wp_parse_args( $args, self::$args[ $opt_name ] );
				}
			}

			public static function getArgs( $opt_name = "" ) {
				self::check_opt_name( $opt_name );
				if ( ! empty( $opt_name ) && ! empty( self::$args[ $opt_name ] ) ) {
					return self::$args[ $opt_name ];
				}
			}

			public static function getArg( $opt_name = "", $key = "" ) {
				self::check_opt_name( $opt_name );
				if ( ! empty( $opt_name ) && ! empty( $key ) && ! empty( self::$args[ $opt_name ] ) ) {
					return self::$args[ $opt_name ][ $key ];
				} else {
					return;
				}
			}

			public static function getOption ($opt_name = "", $key = "") {
				self::check_opt_name( $opt_name );

				if (!empty($opt_name) && !empty($key)) {
					$fusionredux = get_option($opt_name);

					if (isset($fusionredux[$key])) {
						return $fusionredux[$key];
					} else {
						return;
					}
				} else {
					return;
				}
			}

			public static function setOption ($opt_name = "", $key = "", $option = "") {
				self::check_opt_name( $opt_name );

				if (!empty($opt_name) && !empty($key)) {
					$fusionredux          = get_option($opt_name);
					$fusionredux[$key]    = $option;

					return update_option($opt_name, $fusionredux);
				} else {
					return false;
				}
			}

			public static function getPriority( $opt_name, $type ) {
				$priority = self::$priority[ $opt_name ][ $type ];
				self::$priority[ $opt_name ][ $type ] += 1;

				return $priority;
			}

			public static function check_opt_name( $opt_name = "" ) {
				if ( empty( $opt_name ) || is_array( $opt_name ) ) {
					return;
				}
				if ( ! isset( self::$sections[ $opt_name ] ) ) {
					self::$sections[ $opt_name ]             = array();
					self::$priority[ $opt_name ]['sections'] = 1;
				}
				if ( ! isset( self::$args[ $opt_name ] ) ) {
					self::$args[ $opt_name ]             = array();
					self::$priority[ $opt_name ]['args'] = 1;
				}
				if ( ! isset( self::$fields[ $opt_name ] ) ) {
					self::$fields[ $opt_name ]             = array();
					self::$priority[ $opt_name ]['fields'] = 1;
				}
				if ( ! isset( self::$help[ $opt_name ] ) ) {
					self::$help[ $opt_name ]             = array();
					self::$priority[ $opt_name ]['help'] = 1;
				}
				if ( ! isset( self::$errors[ $opt_name ] ) ) {
					self::$errors[ $opt_name ] = array();
				}
				if ( ! isset( self::$init[ $opt_name ] ) ) {
					self::$init[ $opt_name ] = false;
				}
			}

			/**
			 * Retrieve metadata from a file. Based on WP Core's get_file_data function
			 *
			 * @since 2.1.1
			 *
			 * @param string $file Path to the file
			 *
			 * @return string
			 */
			public static function getFileVersion( $file ) {
				$data = get_file_data( $file, array( 'version' ), 'plugin' );

				return $data[0];
			}

			public static function checkExtensionClassFile( $opt_name, $name = "", $class_file = "", $instance = "" ) {
				if ( file_exists( $class_file ) ) {
					self::$uses_extensions[ $opt_name ] = isset( self::$uses_extensions[ $opt_name ] ) ? self::$uses_extensions[ $opt_name ] : array();
					if ( ! in_array( $name, self::$uses_extensions[ $opt_name ] ) ) {
						self::$uses_extensions[ $opt_name ][] = $name;
					}

					self::$extensions[ $name ] = isset( self::$extensions[ $name ] ) ? self::$extensions[ $name ] : array();
					$version                   = FusionRedux_Helpers::get_template_version( $class_file );
					if ( empty( $version ) && ! empty( $instance ) ) {
						if ( isset( $instance->version ) ) {
							$version = $instance->version;
						}
					}
					self::$extensions[ $name ][ $version ] = isset( self::$extensions[ $name ][ $version ] ) ? self::$extensions[ $name ][ $version ] : $class_file;
				}
			}

			public static function setExtensions( $opt_name, $path ) {
				if ( is_dir( $path ) ) {
					$path   = trailingslashit( $path );
					$folder = str_replace( '.php', '', basename( $path ) );
					if ( file_exists( $path . 'extension_' . $folder . '.php' ) ) {
						self::checkExtensionClassFile( $opt_name, $folder, $path . 'extension_' . $folder . '.php' );
					} else {
						$folders = scandir( $path, 1 );
						foreach ( $folders as $folder ) {
							if ( $folder === '.' or $folder === '..' ) {
								continue;
							}
							if ( file_exists( $path . $folder . '/extension_' . $folder . '.php' ) ) {
								self::checkExtensionClassFile( $opt_name, $folder, $path . $folder . '/extension_' . $folder . '.php' );
							} else if ( is_dir( $path . $folder ) ) {
								self::setExtensions( $opt_name, $path . $folder );
								continue;
							}
						}
					}
				} else if ( file_exists( $path ) ) {
					$name = explode( 'extension_', basename( $path ) );
					if ( isset( $name[1] ) && ! empty( $name[1] ) ) {
						$name = str_replace( '.php', '', $name[1] );
						self::checkExtensionClassFile( $opt_name, $name, $path );
					}
				}
			}

			public static function getAllExtensions() {
				$fusionredux = FusionReduxFrameworkInstances::get_all_instances();
				foreach ( $fusionredux as $instance ) {
					if ( ! empty( self::$uses_extensions[ $instance['args']['opt_name'] ] ) ) {
						continue;
					}
					if ( ! empty( $instance['extensions'] ) ) {

						FusionRedux::getInstanceExtensions( $instance['args']['opt_name'], $instance );
					}
				}
			}

			public static function getInstanceExtensions( $opt_name, $instance = array() ) {
				if ( ! empty( self::$uses_extensions[ $opt_name ] ) ) {
					return;
				}
				if ( empty( $instance ) ) {
					$instance = FusionReduxFrameworkInstances::get_instance( $opt_name );
				}
				if ( empty( $instance ) || empty( $instance->extensions ) ) {
					return;
				}
				foreach ( $instance->extensions as $name => $extension ) {
					if ( $name == "widget_areas" ) {
						$new = new FusionRedux_Widget_Areas( $instance );
					}
					if ( isset( self::$uses_extensions[ $opt_name ][ $name ] ) ) {
						continue;
					}
					if ( isset( $extension->extension_dir ) ) {
						FusionRedux::setExtensions( $opt_name, str_replace( $name, '', $extension->extension_dir ) );

					} else if ( isset( $extension->_extension_dir ) ) {
						FusionRedux::setExtensions( $opt_name, str_replace( $name, '', $extension->_extension_dir ) );
					}
				}
			}

			public static function getExtensions( $opt_name = "", $key = "" ) {

				if ( empty( $opt_name ) ) {
					FusionRedux::getAllExtensions();
					if ( empty( $key ) ) {
						return self::$extension_paths;
					} else {
						if ( isset( self::$extension_paths[ $key ] ) ) {
							return self::$extension_paths[ $key ];
						}
					}
				} else {
					if ( empty( self::$uses_extensions[ $opt_name ] ) ) {
						FusionRedux::getInstanceExtensions( $opt_name );
					}

					if ( empty( self::$uses_extensions[ $opt_name ] ) ) {
						return false;
					}
					$instanceExtensions = array();
					foreach ( self::$uses_extensions[ $opt_name ] as $extension ) {
						$class_file                       = end( self::$extensions[ $extension ] );
						$name                             = str_replace( '.php', '', basename( $extension ) );
						$extension_class                  = 'FusionReduxFramework_Extension_' . $name;
						$instanceExtensions[ $extension ] = array(
							'path'    => $class_file,
							'class'   => $extension_class,
							'version' => FusionRedux_Helpers::get_template_version( $class_file )
						);
					}

					return $instanceExtensions;
				}

				return false;
			}
		}

		FusionRedux::load();
	}
