<?php
/**
 * core/template/views.php
 *
 * This class is for managing template views.
 *
 * @version 3.0
 * @author  Joey Kimsey <Joey@thetempusproject.com>
 * @link    https://TheTempusProject.com/Core
 * @license https://opensource.org/licenses/MIT [MIT LICENSE]
 */
namespace TheTempusProject\Houdini\Classes;

use TheTempusProject\Canary\Canary as Debug;

class Views extends Template {
    public static $additionalLocations = [];

    /**
     * This function adds a standard view to the main {CONTENT}
     * section of the page.
     *
     * @param  string   $viewName - The name of the view being called.
     * @param  wild     $data - Any data to be used with the view.
     *
     * @todo  add a check to viewName
     */
    public static function view( $viewName, $data = null ) {
        if ( !empty( $data ) ) {
            $out = self::simpleView( $viewName, $data );
        } else {
            $out = self::simpleView( $viewName );
        }
        if ( !empty( $out ) ) {
            self::$content .= $out;
        } else {
            // new CustomException( 'view', $viewName );
        }
    }

    public static function raw( $html ) {
        $out = self::parse( $html );
        self::$content .= $out;
    }

    /**
     * Returns a completely parsed view.
     *
     * NOTE: Results will contain raw HTML.
     *
     * @param {string} [$view] - The name of the view you wish to call.
     * @param {var} [$data] - Any data to be used by the view.
     * @return {string} HTML view.
     */
    public static function simpleView( $view, $data = null ) {
        Debug::log( "Calling Standard: $view" );
        // all views start with lowercase letters
        $lowerCase = lcfirst( $view );
        // convert ., \, and /, to DIRECTORY_SEPARATOR
        $normalized = str_replace( '.', DIRECTORY_SEPARATOR, $lowerCase );
        $normalized = str_replace( '\\', DIRECTORY_SEPARATOR, $normalized );
        $normalized = str_replace( '/', DIRECTORY_SEPARATOR, $normalized );
        // trim any hanging DIRECTORY_SEPARATOR (shouldn't be necessary)
        $trimmed = rtrim( $normalized, DIRECTORY_SEPARATOR );
        // add the html extension
        $viewName = $trimmed . '.html';

        // check the main views directory
        $path = VIEW_DIRECTORY . $viewName;
        Debug::log( "Trying location: $path" );
        if ( is_file( $path ) ) {
            if ( !empty( $data ) ) {
                return self::parse( file_get_contents( $path ), $data );
            } else {
                return self::parse( file_get_contents( $path ) );
            }
        }

        // if the first part of the view name matches the name of an additionalLocation Index, we check there too
        $exploded = explode( DIRECTORY_SEPARATOR, $viewName );
        $potentialKey = array_shift( $exploded );
        $imploded = implode( DIRECTORY_SEPARATOR, $exploded );
        Debug::debug( "Trying potentialKey: $potentialKey" );
        Debug::debug( "Trying imploded: $imploded" );
        Debug::debug( 'additionalLocations: ' . var_export( self::$additionalLocations, true ) );
        if ( !empty( self::$additionalLocations[$potentialKey] ) ) {
            $path = self::$additionalLocations[$potentialKey] . $imploded;
            Debug::debug( "Trying path: $path" );
        }
        if ( is_file( $path ) ) {
            Debug::log( "WINNER path: $path" );
            if ( !empty( $data ) ) {
                return self::parse( file_get_contents( $path ), $data );
            } else {
                return self::parse( file_get_contents( $path ) );
            }
        }
        // @todo - this would be awesome, if i actually caught the exception anywhere :/
        // throw new CustomException('simpleView', $path);
        return false;
    }

    public static function addViewLocation( $name, $location ) {
        self::$additionalLocations[$name] = $location;
    }

    public static function removeViewLocation( $name ) {
        if ( ! empty( self::$additionalLocations[$name] ) ) {
            unset( self::$additionalLocations[$name] );
        }
    }
}