<?php

declare(strict_types=1);

namespace App\Domain\SmartLink\Repositories;

use App\Domain\SmartLink\Entities\SmartLink;
use App\Domain\SmartLink\Enums\LinkStatus;
use App\Domain\SmartLink\Enums\LinkType;
use App\Domain\SmartLink\ValueObjects\LinkSettings;
use App\Domain\SmartLink\ValueObjects\LinkTitle;
use App\Domain\SmartLink\ValueObjects\ShortCode;
use App\Domain\SmartLink\ValueObjects\SmartLinkId;
use App\Framework\Core\ValueObjects\Timestamp;
use App\Framework\Database\ConnectionInterface;
use App\Framework\Database\ValueObjects\SqlQuery;

final readonly class DatabaseSmartLinkRepository implements SmartLinkRepository
{
    public function __construct(
        private ConnectionInterface $connection
    ) {
    }

    public function save(SmartLink $link): void
    {
        $sql = 'INSERT INTO smart_links (id, short_code, type, title, cover_image_url, status, user_id, settings, created_at, updated_at)
             VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
             ON DUPLICATE KEY UPDATE
                type = VALUES(type),
                title = VALUES(title),
                cover_image_url = VALUES(cover_image_url),
                status = VALUES(status),
                settings = VALUES(settings),
                updated_at = VALUES(updated_at)';

        $query = SqlQuery::create($sql, [
            $link->id->toString(),
            $link->shortCode->toString(),
            $link->type->value,
            $link->title->toString(),
            $link->coverImageUrl,
            $link->status->value,
            $link->userId,
            json_encode($link->settings->toArray()),
            $link->createdAt->format('Y-m-d H:i:s'),
            $link->updatedAt->format('Y-m-d H:i:s'),
        ]);

        $this->connection->execute($query);
    }

    public function findById(SmartLinkId $id): ?SmartLink
    {
        $sql = 'SELECT * FROM smart_links WHERE id = ?';
        $query = SqlQuery::create($sql, [$id->toString()]);
        $result = $this->connection->query($query);
        $row = $result->fetch();

        return $row ? $this->hydrate($row) : null;
    }

    public function findByShortCode(ShortCode $shortCode): ?SmartLink
    {
        $sql = 'SELECT * FROM smart_links WHERE short_code = ?';
        $query = SqlQuery::create($sql, [$shortCode->toString()]);
        $result = $this->connection->query($query);
        $row = $result->fetch();

        return $row ? $this->hydrate($row) : null;
    }

    public function findByUserId(string $userId, ?LinkStatus $status = null): array
    {
        if ($status !== null) {
            $sql = 'SELECT * FROM smart_links WHERE user_id = ? AND status = ? ORDER BY created_at DESC';
            $query = SqlQuery::create($sql, [$userId, $status->value]);
        } else {
            $sql = 'SELECT * FROM smart_links WHERE user_id = ? ORDER BY created_at DESC';
            $query = SqlQuery::create($sql, [$userId]);
        }

        $result = $this->connection->query($query);
        $rows = $result->fetchAll();

        return array_map(fn (array $row) => $this->hydrate($row), $rows);
    }

    public function existsShortCode(ShortCode $shortCode): bool
    {
        $sql = 'SELECT COUNT(*) as count FROM smart_links WHERE short_code = ?';
        $query = SqlQuery::create($sql, [$shortCode->toString()]);
        $result = $this->connection->query($query);
        $count = $result->fetch();

        return ($count['count'] ?? 0) > 0;
    }

    public function delete(SmartLinkId $id): void
    {
        $sql = 'DELETE FROM smart_links WHERE id = ?';
        $query = SqlQuery::create($sql, [$id->toString()]);
        $this->connection->execute($query);
    }

    public function findActiveLinks(): array
    {
        $sql = 'SELECT * FROM smart_links WHERE status = ? ORDER BY created_at DESC';
        $query = SqlQuery::create($sql, [LinkStatus::ACTIVE->value]);
        $result = $this->connection->query($query);
        $rows = $result->fetchAll();

        return array_map(fn (array $row) => $this->hydrate($row), $rows);
    }

    public function getTotalClicks(SmartLinkId $id): int
    {
        $sql = 'SELECT COUNT(*) as count FROM click_events WHERE link_id = ?';
        $query = SqlQuery::create($sql, [$id->toString()]);
        $result = $this->connection->query($query);
        $row = $result->fetch();

        return (int) ($row['count'] ?? 0);
    }

    private function hydrate(array $row): SmartLink
    {
        $settings = json_decode($row['settings'], true);

        return new SmartLink(
            id: SmartLinkId::fromString($row['id']),
            shortCode: ShortCode::fromString($row['short_code']),
            type: LinkType::from($row['type']),
            title: LinkTitle::fromString($row['title']),
            coverImageUrl: $row['cover_image_url'],
            status: LinkStatus::from($row['status']),
            userId: $row['user_id'],
            settings: new LinkSettings(
                trackClicks: (bool) $settings['track_clicks'],
                enableGeoRouting: (bool) $settings['enable_geo_routing'],
                showPreview: (bool) $settings['show_preview'],
                customDomain: $settings['custom_domain'] ?? null,
                clickLimit: $settings['click_limit'] ?? null,
                password: $settings['password'] ?? null
            ),
            createdAt: Timestamp::fromDateTime(new \DateTimeImmutable($row['created_at'])),
            updatedAt: Timestamp::fromDateTime(new \DateTimeImmutable($row['updated_at']))
        );
    }
}