<?php

namespace FluentCrm\App\Services\CrmMigrator;

use FluentCrm\App\Models\Tag;
use FluentCrm\App\Services\CrmMigrator\Api\MailChimp;
use FluentCrm\Framework\Support\Arr;

class MailChimpMigrator extends BaseMigrator
{
    private $tagNameCache = [];
    private $taggingArray = [];

    public function getInfo()
    {
        $infoSvg = $this->getInfoIcon();

        $logo = $this->getSvgLogo();

        return [
            'title'                  => 'MailChimp',
            'description'            => __('Transfer your mailchimp lists, tags and contacts from MailChimp to FluentCRM', 'fluent-crm'),
            'logo'                   => fluentCrmMix('images/migrators/mailchimp.png'),
            'logo_svg'               => $logo,
            'supports'               => [
                'tags'                => true,
                'lists'               => true,
                'empty_tags'          => true,
                'active_imports_only' => true,
                'auto_tag_mapper'     => true
            ],
            'credentials'            => [
                'api_key' => ''
            ],
            'credential_fields'      => [
                'api_key' => [
                    'label'       => __('API Key', 'fluent-crm'),
                    'placeholder' => __('MailChimp API Key', 'fluent-crm'),
                    'data_type'   => 'password',
                    'type'        => 'input-text',
                    'inline_help' => $infoSvg . ' ' . __('You can find your API key at MailChimp Account -> Extras -> API keys', 'fluent-crm')
                ]
            ],
            'refresh_on_list_change' => true,
            'doc_url'                => 'https://fluentcrm.com/docs/migrating-into-fluentcrm-from-mailchimp/'
        ];
    }

    public function verifyCredentials($credential)
    {
        $api = $this->getApi($credential);
        try {
            $result = $api->get('lists');
            if (!$api->success()) {
                throw new \Exception($api->getLastError());
            }
        } catch (\Exception $exception) {
            return new \WP_Error('api_error', $exception->getMessage());
        }

        return true;
    }

    public function getListTagMappings($postedData)
    {
        $api = $this->getApi($postedData['credential']);
        $lists = $api->get('lists', ['count' => 9999]);
        $formattedLists = [];

        foreach ($lists['lists'] as $list) {
            $formattedLists[] = [
                'id'          => $list['id'],
                'name'        => $list['name'],
                'description' => __('(Contacts count ', 'fluent-crm') . Arr::get($list, 'stats.member_count') . ')'
            ];
        }

        $data = [
            'lists'             => $formattedLists,
            'tags'              => [],
            'contact_fields'    => [],
            'contact_fillables' => []
        ];

        $settings = Arr::get($postedData, 'map_settings', []);

        if (!empty($settings['list_id'])) {
            $tags = $api->get('lists/' . $settings['list_id'] . '/tag-search?count=9999');
            $formattedTags = [];

            foreach ($tags['tags'] as $tag) {
                $formattedTags[] = [
                    'remote_name'  => (string)$tag['name'],
                    'remote_id'    => (string)$tag['id'],
                    'will_create'  => 'no',
                    'fluentcrm_id' => ''
                ];
            }
            $data['tags'] = $formattedTags;
            $mergeFields = $api->get('lists/' . $settings['list_id'] . '/merge-fields', array('count' => 9999));

            $contactFields = $mergeFields['merge_fields'];

            $mcFieldTypes = ['text', 'radio', 'phone', 'imageurl', 'url', 'dropdown', 'date', 'number', 'address'];
            $formattedContactFields = [];

            $addressMapped = false;
            foreach ($contactFields as $field) {
                $fieldType = $field['type'];

                if (!in_array($fieldType, $mcFieldTypes)) {
                    continue;
                }

                $item = [
                    'type'            => 'any',
                    'remote_label'    => $field['name'],
                    'remote_tag'      => $field['tag'],
                    'fluentcrm_field' => '',
                    'remote_type'     => $fieldType,
                    'will_skip'       => 'no'
                ];

                if ($fieldType == 'address') {
                    $item['type'] = 'selections';
                    $item['options'] = ['contact_address' => 'Contact Address'];

                    if (!$addressMapped) {
                        $addressMapped = true;
                        $item['fluentcrm_field'] = 'contact_address';
                    }
                } else if ($fieldType == 'date') {
                    $item['date_format'] = $field['options']['date_format'];
                }

                if ($item['remote_tag'] == 'FNAME') {
                    $item['fluentcrm_field'] = 'full_name';
                } else if ($item['remote_label'] == 'First Name') {
                    $item['fluentcrm_field'] = 'first_name';
                } else if ($item['remote_label'] == 'Last Name') {
                    $item['fluentcrm_field'] = 'last_name';
                }

                $formattedContactFields[] = $item;
            }

            $data['contact_fields'] = $formattedContactFields;
            $data['contact_fillables'] = $this->getFillables();

            $data['all_ready'] = true;

        }

        return $data;
    }

    public function getSummary($postedData)
    {
        $settings = Arr::get($postedData, 'map_settings', []);
        $listId = Arr::get($settings, 'list_id');
        $api = $this->getApi($postedData['credential']);

        $list = $api->get('lists/' . $listId);

        $membersCount = Arr::get($list, 'stats.member_count', 0);
        $allCount = Arr::get($list, 'stats.unsubscribe_count') + $membersCount;

        $count = $allCount;

        if (Arr::get($settings, 'import_active_only') == 'yes') {
            $count = $membersCount;
        }

        $message = __('Based on your selections ', 'fluent-crm') . $count . __(' contacts will be imported', 'fluent-crm');

        return [
            'subscribed_count'   => $membersCount,
            'unsubscribed_count' => Arr::get($list, 'stats.unsubscribe_count', 0),
            'all_count'          => $allCount,
            'message'            => $message
        ];
    }

    public function runImport($postedData)
    {

        $isAutoTagMapping = Arr::get($postedData, 'auto_mapping') == 'yes';

        if (!defined('FLUENTCRM_DISABLE_TAG_LIST_EVENTS')) {
            define('FLUENTCRM_DISABLE_TAG_LIST_EVENTS', true);
        }

        $mapSettings = Arr::get($postedData, 'map_settings', []);

        $api = $this->getApi($postedData['credential']);

        $processPerPage = 100;

        $params = [
            'offset' => Arr::get($postedData, 'completed', 0),
            'count'  => $processPerPage
        ];

        if(!$isAutoTagMapping) {
            $tagMappings = Arr::get($postedData, 'tags', []);
            $this->taggingArray = $this->mapTags($tagMappings);
        }

        if ($mapSettings['import_active_only'] == 'yes') {
            $params['status'] = 'subscribed';
        }

        $members = $api->get('lists/' . $mapSettings['list_id'] . '/members', $params);

        $subscribers = $members['members'];

        $fieldMaps = Arr::get($postedData, 'contact_fields', []);

        foreach ($subscribers as $subscriber) {
            $created_at = gmdate('Y-m-d H:i:s');
            if (!empty($subscriber['timestamp_signup'])) {
                $created_at = gmdate('Y-m-d H:i:s', strtotime($subscriber['timestamp_signup']));
            }

            $data = [
                'email'      => $subscriber['email_address'],
                'full_name'  => $subscriber['full_name'],
                'created_at' => $created_at,
                'source'     => $subscriber['source'],
                'ip'         => $subscriber['ip_signup'],
                'country'    => Arr::get($subscriber, 'location.country_code'),
                'status'     => $subscriber['status']
            ];

            $mergeData = $this->getMergedData($subscriber['merge_fields'], $fieldMaps);

            if (!empty($mergeData['contact_address']) && is_array($mergeData['contact_address'])) {
                $address = $mergeData['contact_address'];
                unset($mergeData['contact_address']);

                $address = array_filter($address);

                $addressMappings = [
                    'addr1'   => 'address_line_1',
                    'addr2'   => 'address_line_2',
                    'city'    => 'city',
                    'country' => 'country',
                    'state'   => 'state',
                    'zip'     => 'postal_code'
                ];

                foreach ($address as $key => $value) {
                    if (isset($addressMappings[$key])) {
                        $mergeData[$addressMappings[$key]] = $value;
                    }
                }
            }

            if ($mergeData) {
                $data = array_merge($data, $mergeData);
            }

            if (!empty($mapSettings['local_list_id'])) {
                $data['lists'] = [$mapSettings['local_list_id']];
            }

            $data['tags'] = $this->formatRemoteTags($subscriber['tags'], $isAutoTagMapping, $mapSettings);

            $contact = FluentCrmApi('contacts')->createOrUpdate($data);

            if (isset($params['status']) && $params['status'] == 'subscribed' && $contact && $contact->status != 'subscribed') {
                $contact->updateStatus('subscribed');
            }

        }

        $completed = Arr::get($postedData, 'completed', 0) + $processPerPage;

        return [
            'completed' => $completed,
            'total'     => $members['total_items'],
            'has_more'  => $completed < $members['total_items']
        ];
    }

    private function formatRemoteTags($remoteTags, $isAuto, $mapSettings)
    {
        $tagIds = [];
        if($isAuto) {
            foreach ($remoteTags as $tag) {
                $tagName = sanitize_text_field($tag['name']);
                if(!empty($this->tagNameCache[$tagName])) {
                    $tagIds[] = $this->tagNameCache[$tagName];
                } else {
                    $createdTag = Tag::updateOrCreate(
                        ['slug' => sanitize_title($tagName, 'display')],
                        ['title' => sanitize_text_field($tagName)]
                    );
                    if($createdTag) {
                        $this->tagNameCache[$createdTag->title] = $createdTag->id;
                        $tagIds[] = $createdTag->id;
                    }
                }
            }

            if (empty($tagIds) && !empty($mapSettings['local_tag_id'])) {
                $tagIds = [$mapSettings['local_tag_id']];
            }

            return $tagIds;
        }

        foreach ($remoteTags as $contactTag) {
            if (!empty($this->taggingArray[$contactTag['id']])) {
                $tagIds[] = $this->taggingArray[$contactTag['id']];
            }
        }

        if (empty($tagIds) && !empty($mapSettings['local_tag_id'])) {
            $tagIds = [$mapSettings['local_tag_id']];
        }
        return $tagIds;
    }

    private function getApi($credential)
    {
        return new MailChimp($credential['api_key']);
    }

    public function getSvgLogo()
    {
        return '<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32" fill="none">
  <path d="M16 2C8.27813 2 2 8.27812 2 16C2 23.7219 8.27813 30 16 30C23.7219 30 30 23.7219 30 16C30 8.27812 23.7219 2 16 2Z" fill="#FDDD4C"/>
  <path d="M9.86884 19.6502C9.56272 19.1867 10.3327 18.4853 10.0195 17.8963C9.83897 17.5567 9.54389 17.345 9.18952 17.3006C8.84941 17.2579 8.49905 17.3824 8.27573 17.6257C7.92315 18.0094 7.86832 18.5317 7.93652 18.7165C7.96148 18.7842 8.00071 18.8027 8.02879 18.8067C8.22083 18.832 8.32889 18.3391 8.39519 18.2364C8.57851 17.9535 8.99476 17.8679 9.28223 18.0538C9.82731 18.4064 9.35467 18.9762 9.39545 19.4574C9.43513 19.926 9.72709 20.1144 9.98919 20.1342C10.2442 20.1438 10.4225 20.0022 10.4675 19.8988C10.5754 19.6519 10.1207 20.0315 9.86884 19.6502Z" fill="black"/>
  <path d="M21.2577 15.3958C21.1147 15.3761 20.9585 15.3765 20.7959 15.3958C20.6725 15.2401 20.5619 14.9879 20.4995 14.6936C20.3885 14.17 20.4001 13.7907 20.7099 13.7414C21.0197 13.6922 21.1694 14.009 21.2804 14.5326C21.3549 14.8846 21.3406 15.208 21.2577 15.3958Z" fill="black"/>
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</svg>';
    }
}