<?php declare(strict_types=1);

require_once('common.php');

use Telegram\Bot\Actions;
use Telegram\Bot\Commands\Command;

if(!canChatWith(getTelegram()->getWebhookUpdates())) {
    getTelegram()->sendMessage([
        'chat_id' => getTelegram()->getWebhookUpdates()->get('message')->get('chat')->get('id'),
        'text' => "Sorry, Dad says I can't talk to you."
    ]);
    exit(0);
}

getTelegram()->addCommand(
    new class extends Command {
        protected $name = 'searchmovies';
        protected $description = 'Search through the movie collection';

        public function handle($arguments) {
            $top5 = ∘(unlines, aaray_column('title'), aaray_slice(0)(5), 'array_reverse', 'array_values', ssort(∘(∘f(field('similarity')), ⬄, field('similarity'))));
            $movies = map(function($movie) use ($arguments) {
                similar_text($arguments, substr($movie, 0, -7) ?: '', $perc);
                return ['title' => $movie, 'similarity' => $perc];
            })(scandir('/mnt/media/Movies'));

            $this->replyWithMessage(
                [
                    'text' => "Here are the most similar movies titles I could find...\n\n" . $top5($movies)
                ]
            );
        }
    }
);

getTelegram()->addCommand(
    new class extends Command {
        protected $name = 'chatid';
        protected $description = 'Get the id for this chat.';

        public function handle($arguments) {
            $this->replyWithMessage([
                'text' => $this->getUpdate()->get('message')->get('chat')->get('id')
            ]);
        }
    }
);

getTelegram()->addCommand(
    new class extends Command {
        protected $name = 'mybills';
        protected $description = 'List my bills';

        public function handle($arguments) {
            $this->replyWithMessage(['text' => 'Fetching ' . getMessageSenderDisplayName($this->getUpdate())  . "'s unpaid bills. Just a sec ..."]);
            $this->replyWithChatAction(['action' => Actions::TYPING]);
            $this->replyWithMessage([
                'text' => implode(
                    "\n",
                    array_map(
                        function($bill) {
                            return sprintf(
                                "%s (%s): $%s each due on the %s",
                                $bill['service'],
                                $bill['id'],
                                splitBill($bill['amount']),
                                $bill['due']->format('jS \of M')
                            );
                        },
                        getMessagesFromInbox(
                            getInbox(
                                'Utilities/' . getMessageSender($this->getUpdate()) . ' To Pay'
                            ),
                            require 'rules.php',
                            FALSE
                        )
                    ) ?: ['You have no unpaid bills! Nice one.']
                )
            ]);
        }
    }
);

getTelegram()->addCommand(
    new class extends Command {
        protected $name = 'paybill';
        protected $description = 'Mark a bill as paid';

        public function handle($arguments) {
            if (!$arguments) {
                $this->replyWithMessage(['text' => "I need the bill id. The /mybills command lists all your bills with the ids in brackets. Here, I'll show you..."]);
                $this->triggerCommand('mybills');
            }

            $messages = array_values(array_filter(
                getMessagesFromInbox(
                    getInbox(
                        'Utilities/' . getMessageSender($this->getUpdate()) . ' To Pay'
                    ),
                    require 'rules.php',
                    FALSE
                ),
                function($e) use ($arguments) {
                    return $e['id'] == $arguments;
                }
            ));

            if(!$messages || count($messages) !== 1) {
                $this->replyWithMessage(['text' => "That doesn't look like a valid id. Use /mybills to list your bills."]);
                return;
            }

            imap_delete(getInbox('Utilities/' . getMessageSender($this->getUpdate()) . ' To Pay'), $messages[0]['uid'], FT_UID);
            $this->replyWithMessage(['text' => "I marked " . getMessageSenderDisplayName($this->getUpdate())  . " as having paid the " . strtolower($messages[0]['service']) . " bill, thanks!"]);
        }
    }

);

getTelegram()->addCommand(
    new class extends Command {
        protected $name = 'tasks';
        protected $description = 'List tasks for this week';

        public function handle($arguments) {
            $dt = new DateTimeImmutable();
            $directory = sprintf(
                "tasks/%s/%s/%s",
                $dt->format('Y'),
                $dt->format('F'),
                $dt->format('W')
            );

            $mondays = [
                (int)(new DateTimeImmutable('first monday of this month'))->format('d'),
                (int)(new DateTimeImmutable('second monday of this month'))->format('d'),
                (int)(new DateTimeImmutable('third monday of this month'))->format('d'),
                (int)(new DateTimeImmutable('fourth monday of this month'))->format('d'),
            ];
            $closestMonday = closest($dt->format('d'), $mondays);

            $tasksForTheWeek = getTasksForTheWeek(
                array_search($closestMonday, $mondays),
                (int)$dt->format('m'),
                require 'taskMatrix.php'
            );

            $completedTasksFile = "$directory" . "/completed.txt";
            $completedTasks = file_exists($completedTasksFile) ? lines(trim(file_get_contents($completedTasksFile))) : [];

            $this->replyWithMessage([
                'text' => ununlines([
                    getString('tasksForTheWeek'),
                    unlines(map(getStringAndCode)(array_diff($tasksForTheWeek, $completedTasks)))
                ])
            ]);
        }
    }
);

getTelegram()->addCommand(
    new class extends Command {
        protected $name = 'completetask';
        protected $description = 'Mark a task as completed';

        public function handle($arguments) {
            $dt = new DateTimeImmutable();
            $mondays = [
                (int)(new DateTimeImmutable('first monday of this month'))->format('d'),
                (int)(new DateTimeImmutable('second monday of this month'))->format('d'),
                (int)(new DateTimeImmutable('third monday of this month'))->format('d'),
                (int)(new DateTimeImmutable('fourth monday of this month'))->format('d'),
            ];
            $closestMonday = closest($dt->format('d'), $mondays);

            $completedTasksFile = getFilePathForWeek((int)$dt->format('Y'), (int)$dt->format('n'), array_search($closestMonday, $mondays));

            $tasksForTheWeek = getTasksForTheWeek(
                array_search($closestMonday, $mondays),
                (int)$dt->format('m'),
                require 'taskMatrix.php'
            );

            $completedTasks = file_exists($completedTasksFile) ? lines(trim(file_get_contents($completedTasksFile))) : [];

            if (!is_dir(dirname($completedTasksFile))) {
                mkdir(dirname($completedTasksFile), 0777, true);
            }

            if (in_array($arguments, $completedTasks)) {
                $this->replyWithMessage(['text' => getString('taskAlreadyCompleted')]);
                return;
            }

            if (!in_array($arguments, $tasksForTheWeek)) {
                $this->replyWithMessage(['text' => getString('unknownTask')]);
                return;
            }

            file_put_contents(
                $completedTasksFile,
                "$arguments\n",
                FILE_APPEND
            );

            $this->replyWithMessage(['text' => getString('taskCompleted')]);
        }
    }
);

getTelegram()->commandsHandler(true); //must come afterwards because lolzer