<?php
/*
 SPDX-License-Identifier: AGPL-3.0-only
 SPDX-FileCopyrightText: © 2024 Millions Missing FRANCE <info@millionsmissing.fr>
 */

namespace Modules\MMFCustomersGroups\Providers;

use Eventy;
use View;

use Illuminate\Database\Eloquent\Collection;
use Illuminate\Support\ServiceProvider;

use Modules\MMFCustomersGroups\Entities\CustomersGroup;
use Modules\MMFCustomersGroups\Entities\Mailbox;

class MMFCustomersGroupsServiceProvider extends ServiceProvider {
	/**
	 * Indicates if loading of the provider is deferred.
	 *
	 * @var bool
	 */
	protected $defer = false;

	/**
	 * Boot the application events.
	 *
	 * @return void
	 */
	public function boot() {
		$this->registerConfig();
		$this->registerViews();
		$this->registerTranslations();
		$this->loadMigrationsFrom(__DIR__ . '/../Database/Migrations');
		$this->hooks();
	}

	/**
	 * Register config.
	 *
	 * @return void
	 */
	protected function registerConfig() {
		$this->publishes([
			__DIR__.'/../Config/config.php' => config_path('mmfcustomersgroups.php'),
		], 'config');
		$this->mergeConfigFrom(
			__DIR__.'/../Config/config.php', 'mmfcustomersgroups'
		);
	}

	/**
	 * Get the services provided by the provider.
	 *
	 * @return array
	 */
	public function provides() {
		return [];
	}

	/**
	 * Register views.
	 *
	 * @return void
	 */
	public function registerViews() {
		$viewPath = resource_path('views/modules/mmfcustomersgroups');

		$sourcePath = __DIR__.'/../Resources/views';

		$this->publishes([
			$sourcePath => $viewPath,
		],'views');

		$this->loadViewsFrom(array_merge(array_map(function ($path) {
			return $path . '/modules/mmfcustomersgroups';
		}, \Config::get('view.paths')), [$sourcePath]), 'mmfcustomersgroups');
	}

	/**
	 * Register translations.
	 *
	 * @return void
	 */
	public function registerTranslations() {
		$this->loadTranslationsFrom(__DIR__ .'/../Resources/lang', 'mmfcustomersgroups');
	}

	/**
	 * Module hooks.
	 */
	public function hooks() {
		// Add a menu entry to manage the customer groups.
		Eventy::addAction('menu.manage.after_mailboxes', function() {
			echo View::make('mmfcustomersgroups::partials/menu', [])->render();
		});

		// Add a list of customer groups to select from when writing a new conversation.
		Eventy::addAction('conversation.create_form.before_subject', function($conversation, $mailbox, $thread) {
			// We must fetch a fresh Mailbox instance,
			// as the one that has been passed does not have a "groups" relationship.
			$mailbox = Mailbox::find($mailbox->id);
			$groups = $mailbox->groups;
			echo View::make(
				'mmfcustomersgroups::conversations/partials/groups-selection',
				[
					'groups' => $groups,
				],
			)->render();
		}, 20, 3);

		// Update the list of recipients if some groups have been selected.
		Eventy::addAction('conversation.send_reply_save', function($conversation, $request) {
			$groups_cc = $request->groups_cc;
			$groups_bcc = $request->groups_bcc;
			// Return early if no group has been selected.
			if ( empty($groups_cc) && empty($groups_bcc) ) return;

			// Cc - Get the list of e-mails included in the selected groups.
			if ( !empty($groups_cc) ) {
				$emails = new Collection;
				foreach ( $groups_cc as $group_id ) {
					$group = CustomersGroup::find($group_id);
					$emails = $emails->concat($group->emails());
				}
				$emails = $emails->unique('email')->pluck('email');
				// Update the list of Cc emails.
				$cc = array_unique(array_merge(
					$conversation->getCcArray(),
					$emails->toArray()
				));
				$conversation->setCc($cc);
			}

			// Bcc - Get the list of e-mails included in the selected groups.
			if ( !empty($groups_bcc) ) {
				$emails = new Collection;
				foreach ( $groups_bcc as $group_id ) {
					$group = CustomersGroup::find($group_id);
					$emails = $emails->concat($group->emails());
				}
				$emails = $emails->unique('email')->pluck('email');
				// Update the list of Bcc emails.
				$bcc = array_unique(array_merge(
					$conversation->getBccArray(),
					$emails->toArray()
				));
				$conversation->setBcc($bcc);
			}

			// TODO: Check if this explicit save() call is required.
			$conversation->save();
		}, 20, 2);
	}
}