<?php

namespace rednaoeasycalculationforms\Managers\AIManagers;

use rednaoeasycalculationforms\core\Exception\FriendlyException;

class AIFieldDescriptor
{
    private static $_fields = null;
    private static $_settings = null;
    private function GetFieldsData()
    {
        if (self::$_fields === null) {
            self::$_fields = apply_filters('allinoneforms_get_ai_fields_description', []);
        }
        return self::$_fields;
    }

    private function GetSettingsData()
    {
        if (self::$_settings === null) {
            self::$_settings = apply_filters('allinoneforms_get_ai_fields_settings', []);
        }
        return self::$_settings;
    }

    public function GetBasicFields()
    {
        return $this->GetDescription(['text', 'colorswatcher', 'fileupload', 'textarea', 'masked', 'colorpicker', 'numeric', 'dropdown', 'submit_button', 'checkbox', 'radio', 'buttonselection', 'divider', 'datepicker', 'slider', 'switch', 'signature', 'email', 'address', 'termofservice', 'name', 'rank', 'repeater', 'html', 'simpletext']);

    }

    public function GetFieldSettingsByFieldType($fieldType)
    {
        $field = $this->GetField($fieldType);
        if ($field === null) {
            return [];
        }
        $settings = [];
        foreach ($field['settings'] as $currentSetting) {
            $setting = $this->GetSetting($currentSetting);
            if ($setting === null) {
                continue;
            }
            $settings[] = $setting;
        }
        return $settings;
    }

    public function GetSetting($settingName)
    {

        if (strpos($settingName, ':') !== false) {
            $parts = explode(':', $settingName);
            $settingName = $parts[0];
            $settingType = $parts[1];
            $usage = '';
            $instructions = '';

            switch ($settingType) {
                case 'checkBox':
                    $instructions = 'Allowed values 1 or 0';
                    break;
                case 'dropDown':
                    if (!isset($parts[2])) {
                        throw new FriendlyException('The setting is set as dropdown but have no options: ' . $settingType);
                    }

                    $options = explode('||', $parts[2]);
                    $instructions = 'Allowed values: ' . implode(',', $options);
                    break;
                case 'simpleText':
                    break;
                case 'text':
                    $instructions = 'this setting expect an html with basic html tags, allowed tags are p,span,a,strong,em,b,i,u,s,sub,sup,br,img,ol,ul,li,h1,h2,h3,h4,h5,h6,table,tr,td,th,thead,tbody,tfoot,caption,col,colgroup,row,rowgroup,column,columngroup.';
                    break;
                case 'color':
                    $instructions = 'accept a 6 digit hex color for example #ff0000';
                    break;
                default:
                    throw new FriendlyException('Invalid setting type: ' . $settingType);
            }

            $data = [
                'name' => $settingName,
            ];

            if (!empty($usage)) {
                $data['usage'] = $usage;
            }

            if (!empty($instructions))
                $data['instructions'] = $instructions;

            return $data;

        }

        $data = $this->GetSettingsData();
        foreach ($data as $currentSetting) {
            if ($currentSetting['name'] == $settingName) {
                return $currentSetting;
            }
        }

        return null;
    }

    public function GetDescription($allowedFields = [])
    {
        $fieldText = '';
        foreach ($this->GetFieldsData() as $currentField) {
            if (!empty($allowedFields) && !in_array($currentField['name'], $allowedFields)) {
                continue;
            }
            $fieldText .= "Name: " . $currentField['name'] . "\r\n";
            $fieldText .= "Usage: " . $currentField['usage'] . "\r\n";
            $fieldText .= "Common Use Cases: " . $currentField['common_use_cases'] . "\r\n";

            if (isset($currentField['multiple_options'])) {
                $fieldText .= "Supports multiple options\r\n";
            }

            if (isset($currentField['special_considerations'])) {
                $fieldText .= "Special Considerations: " . $currentField['special_considerations'] . "\r\n";
            }
            $fieldText .= "\r\n";
        }

        return $fieldText;
    }

    public function GetField($fieldType)
    {
        foreach ($this->GetFieldsData() as $currentField) {
            if ($currentField['name'] == $fieldType) {
                return $currentField;
            }
        }
        return null;
    }
}