<?php

namespace Modules\Api\Service;

use Modules\Platform\Core\Helper\CompanySettings;
use Modules\Platform\Core\Helper\SettingsHelper;
use Modules\Platform\Settings\Entities\Country;
use Modules\Platform\User\Entities\User;

/**
 * Builds the company data settings payload (flat list of {key, value, options?}).
 *
 * Shared by the GET /api/settings/company-data endpoint and the /api/login
 * response, so the mobile app always receives the exact same configuration,
 * resolved with the same CompanySettings keys, normalizers and defaults as the
 * web "Company Data Settings" page.
 */
class CompanyDataSettingsService
{
    /**
     * Flat list of settings in web-page order. Only entries that have
     * selectable choices carry an 'options' definition.
     *
     * @return array[]
     */
    private function fieldDefinitions(): array
    {
        return [
            'company_name' => [],
            'address' => [],
            'city' => [],
            'state' => [],
            'postal_code' => [],
            'country_id' => ['options' => $this->activeCountryOptions()],
            'phone' => [],
            'fax' => [],
            'website' => [],
            'vat_id' => [],
            'companyDomain' => [],
            'userLimit' => [],
            'multiCompany' => [],
            's3Storage' => [],
            'autoAnswer' => [],
            'autoAnswerTimeout' => [],
            'whatsAppCountryCode' => ['options' => $this->whatsappCountryOptions()],
            'softphoneAutoHold' => [],
            'softphonePauseEnableDnd' => [],
            'softphoneSurveyTransfer' => [],
            'dndEnabledForAll' => [],
            'companyServerType' => [],
            'smsApiLink' => [],
            'smsSender' => [],
            'smsUser' => [],
            'smsPass' => [],
            'pbxWssUrl' => [],
            'pbxWssPort' => [],
            'externalProfileUrl' => [],
            'missedCallsAlertEmail' => [],
            'missedCallsAlertMinutes' => [],
            'web_hook_link' => [],
            'call_throw_did' => [],
        ];
    }

    /**
     * Return the company data settings as a flat list of key/value pairs.
     *
     * @param  mixed  $companyId
     * @return array[]
     */
    public function getSettings($companyId): array
    {
        $settings = [];

        foreach ($this->fieldDefinitions() as $fieldKey => $def) {
            $entry = [
                'key'   => $fieldKey,
                'value' => $this->resolveValue($fieldKey, $companyId),
            ];

            if (!empty($def['options'])) {
                $entry['options'] = $def['options'];
            }

            $settings[] = $entry;
        }

        return $settings;
    }

    /**
     * Resolve a field value exactly like the web form model does.
     *
     * @param  string  $fieldKey
     * @param  mixed   $companyId
     * @return mixed
     */
    private function resolveValue(string $fieldKey, $companyId)
    {
        switch ($fieldKey) {
            case 'company_name': return CompanySettings::get('S_COMPANY_NAME');
            case 'address':      return CompanySettings::get('S_COMPANY_ADDRESS_');
            case 'city':         return CompanySettings::get('S_COMPANY_CITY');
            case 'state':        return CompanySettings::get('S_COMPANY_STATE');
            case 'postal_code':  return CompanySettings::get('S_COMPANY_POSTAL_CODE');
            case 'country_id':   return CompanySettings::get('S_COMPANY_COUNTRY');
            case 'phone':        return CompanySettings::get('S_COMPANY_PHONE');
            case 'fax':          return CompanySettings::get('S_COMPANY_FAX');
            case 'website':      return CompanySettings::get('S_COMPANY_WEBSITE');
            case 'vat_id':       return CompanySettings::get('S_COMPANY_VAT_ID');
            case 'companyDomain': return CompanySettings::get('S_COMPANY_DOMAIN');
            case 'userLimit':    return CompanySettings::get('S_COMPANY_USERLIMIT');
            case 'multiCompany': return $this->toBool(CompanySettings::get('S_COMPANY_MULTI_COMPANY'));
            case 's3Storage':    return $this->toBool(CompanySettings::get('S_COMPANY_S3_STORAGE'));
            case 'autoAnswer':   return $this->toBool(CompanySettings::get('S_COMPANY_SOFTPHONE_AUTO_ANSWER'));
            case 'autoAnswerTimeout':
                return SettingsHelper::normalizeSoftphoneAutoAnswerTimeout(
                    CompanySettings::get(SettingsHelper::S_COMPANY_SOFTPHONE_AUTO_ANSWER_TIMEOUT)
                );
            case 'whatsAppCountryCode':
                return SettingsHelper::normalizeWhatsAppCountryCode(
                    CompanySettings::get(SettingsHelper::S_COMPANY_WHATSAPP_COUNTRY_CODE)
                );
            case 'softphoneAutoHold': return $this->toBool(CompanySettings::get('S_COMPANY_SOFTPHONE_AUTO_HOLD'));
            case 'softphonePauseEnableDnd': return $this->toBool(CompanySettings::get(SettingsHelper::S_COMPANY_SOFTPHONE_PAUSE_ENABLE_DND));
            case 'softphoneSurveyTransfer': return $this->toBool(CompanySettings::get(SettingsHelper::S_COMPANY_SOFTPHONE_SURVEY_TRANSFER));
            case 'dndEnabledForAll': return $this->isDndEnabledForAllUsers($companyId);
            case 'companyServerType': return CompanySettings::get(SettingsHelper::S_COMPANY_SERVERTYPE);
            case 'smsApiLink':   return CompanySettings::get('S_COMPANY_SMSAPI_LINK');
            case 'smsSender':    return CompanySettings::get('S_COMPANY_SMSSENDER');
            case 'smsUser':      return CompanySettings::get('S_COMPANY_SMSUSER');
            case 'smsPass':      return CompanySettings::get('S_COMPANY_SMSPASS');
            case 'pbxWssUrl':    return CompanySettings::get(SettingsHelper::S_PBX_WSS_URL);
            case 'pbxWssPort':   return CompanySettings::get(SettingsHelper::S_PBX_WSS_PORT);
            case 'externalProfileUrl': return CompanySettings::get(SettingsHelper::S_EXTERNAL_PROFILE_URL);
            case 'missedCallsAlertEmail': return CompanySettings::get(SettingsHelper::S_MISSED_CALLS_ALERT_EMAIL);
            case 'missedCallsAlertMinutes': return (int) CompanySettings::get(SettingsHelper::S_MISSED_CALLS_ALERT_MINUTES, 10);
            case 'web_hook_link':  return CompanySettings::get(SettingsHelper::S_API_WEB_HOOK_LINK);
            case 'call_throw_did': return CompanySettings::get(SettingsHelper::S_API_CALL_THROW_DID);
            default: return null;
        }
    }

    private function toBool($value): bool
    {
        return in_array((string) $value, ['1', 'true', 'on', 'yes'], true);
    }

    private function isDndEnabledForAllUsers($companyId): bool
    {
        return User::where('company_id', $companyId)
            ->where('dnd_enabled', 0)
            ->count() === 0;
    }

    private function activeCountryOptions(): array
    {
        $options = [];
        foreach (Country::whereIsActive(1)->pluck('name', 'id')->toArray() as $id => $name) {
            $options[] = ['id' => (string) $id, 'name' => $name];
        }
        return $options;
    }

    private function whatsappCountryOptions(): array
    {
        $options = [];
        foreach (SettingsHelper::whatsappCountryOptions() as $code => $name) {
            $options[] = ['id' => (string) $code, 'name' => $name];
        }
        return $options;
    }
}