<?php

namespace App\Models;

use CodeIgniter\Model;

class SharedLinkModel extends Model
{
    protected $table            = 'shared_links';
    protected $primaryKey       = 'id';
    protected $useAutoIncrement = true;
    protected $returnType       = 'array';
    protected $protectFields    = true;

    protected $allowedFields = [
        'token',
        'type',
        'resource_id',
        'workspace_id',
        'password_hash',
        'expires_at',
        'view_count',
        'is_active',
        'created_by',
    ];

    protected bool $allowEmptyInserts = false;
    protected bool $updateOnlyChanged = true;

    protected $useTimestamps = true;
    protected $dateFormat    = 'datetime';
    protected $createdField  = 'created_at';
    protected $updatedField  = 'updated_at';

    public function findActiveByToken(string $token): ?array
    {
        $token = trim($token);
        if ($token === '') {
            return null;
        }

        $row = $this->where('token', $token)->where('is_active', 1)->first();
        if (! $row) {
            return null;
        }

        $exp = $row['expires_at'] ?? null;
        if ($exp && strtotime((string) $exp) < time()) {
            return null;
        }

        return $row;
    }

    public function incrementViewCount(int $id): void
    {
        $this->builder()->where('id', $id)->set('view_count', 'view_count + 1', false)->update();
    }

    /**
     * @return list<array<string, mixed>>
     */
    public function forResource(string $type, int $resourceId, int $workspaceId): array
    {
        return $this->where('type', $type)
            ->where('resource_id', $resourceId)
            ->where('workspace_id', $workspaceId)
            ->where('is_active', 1)
            ->orderBy('id', 'DESC')
            ->findAll();
    }

    public function findOwned(int $id, int $workspaceId): ?array
    {
        $row = $this->where('id', $id)->where('workspace_id', $workspaceId)->first();

        return $row ?: null;
    }

    public static function generateToken(): string
    {
        return bin2hex(random_bytes(32));
    }
}