<?php

namespace App\Models;

use Carbon\Carbon;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Support\Arr;

class HostingOrder extends Model
{
    use HasFactory;

    public const STATUS_PENDING = 'pending';
    public const STATUS_ACTIVE = 'active';
    public const STATUS_SUSPENDED = 'suspended';
    public const STATUS_CANCELLED = 'cancelled';
    public const STATUS_EXPIRED = 'expired';
    public const STATUS_FAILED = 'failed';

    public const TYPE_SINGLE_DOMAIN = 'single_domain';
    public const TYPE_MULTI_DOMAIN = 'multi_domain';
    public const TYPE_RESELLER = 'reseller';

    protected $fillable = [
        'user_id',
        'domain_id',
        'domain_name',
        'rc_order_id',
        'rc_customer_id',
        'plan_name',
        'hosting_type',
        'status',
        'ip_address',
        'cpanel_url',
        'cpanel_username',
        'bandwidth_mb',
        'disk_space_mb',
        'expires_at',
        'provisioned_at',
        'meta',
    ];

    protected $casts = [
        'expires_at' => 'datetime',
        'provisioned_at' => 'datetime',
        'meta' => 'array',
    ];

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    public function domain(): BelongsTo
    {
        return $this->belongsTo(Domain::class);
    }

    public function isActive(): bool
    {
        return $this->status === self::STATUS_ACTIVE;
    }

    public function isExpired(): bool
    {
        return $this->status === self::STATUS_EXPIRED
            || ($this->expires_at && $this->expires_at->isPast());
    }

    public function getDomainNameAttribute($value): string
    {
        return $value ?: $this->metaValue([
            'domain_name',
            'domainname',
            'domain-name',
            'domain',
            'hostname',
            'description',
        ], '');
    }

    public function getPlanNameAttribute($value): ?string
    {
        $resolved = $value ?: $this->metaValue([
            'plan_name',
            'planname',
            'productcategory',
            'productkey',
            'description',
        ]);

        return $resolved !== '' ? $resolved : null;
    }

    public function getPlanIdAttribute(): ?string
    {
        $resolved = $this->metaValue([
            'plan_id',
            'planid',
            'plan-id',
            'productkey',
            'plan.name',
            'entitytype.entitytypekey',
        ]);

        return $resolved !== null && $resolved !== '' ? (string) $resolved : null;
    }

    public function getRcOrderIdAttribute($value): ?string
    {
        $resolved = $value ?: $this->metaValue([
            'rc_order_id',
            'order_id',
            'orderid',
            'order-id',
            'entityid',
            'entity-id',
        ]);

        return $resolved !== '' ? (string) $resolved : null;
    }

    public function getRcCustomerIdAttribute($value): ?string
    {
        $resolved = $value ?: $this->metaValue([
            'rc_customer_id',
            'customer_id',
            'customerid',
            'customer-id',
        ]);

        return $resolved !== '' ? (string) $resolved : null;
    }

    public function getIpAddressAttribute($value): ?string
    {
        $resolved = $value ?: $this->metaValue([
            'ip_address',
            'ipaddress',
            'ip',
        ]);

        return $resolved !== '' ? $resolved : null;
    }

    public function getCpanelUrlAttribute($value): ?string
    {
        $resolved = $value ?: $this->metaValue([
            'cpanel_url',
            'cpanelurl',
            'controlpanelurl',
            'access_url',
            'url',
        ]);

        if ($this->looksLikeTemporaryHostingUrl($resolved)) {
            $resolved = null;
        }

        if (! $resolved && $preferredDomain = $this->preferredCpanelDomain()) {
            return 'https://'.$preferredDomain.'/cpanel';
        }

        if (! $resolved && $this->ip_address) {
            return 'https://'.$this->ip_address.':2083';
        }

        return $resolved !== '' ? $resolved : null;
    }

    public function getCpanelUsernameAttribute($value): ?string
    {
        $resolved = $value ?: $this->metaValue([
            'cpanel_username',
            'cpanelusername',
            'access_username',
            'username',
            'siteadminusername',
        ]);

        return $resolved !== '' ? $resolved : null;
    }

    /**
     * @return array<int, string>
     */
    public function getNameserversAttribute($value): array
    {
        $resolved = [];

        if (is_array($value)) {
            $resolved = $value;
        } else {
            $candidate = $this->metaValue([
                'nameservers',
                'nameserver',
                'name_servers',
                'ns',
                'dns.nameservers',
                'server.nameservers',
            ]);

            if (is_array($candidate)) {
                $resolved = $candidate;
            } else {
                $resolved = array_filter([
                    $this->metaValue(['ns1', 'nameserver1', 'name_server_1', 'server.ns1']),
                    $this->metaValue(['ns2', 'nameserver2', 'name_server_2', 'server.ns2']),
                    $this->metaValue(['ns3', 'nameserver3', 'name_server_3', 'server.ns3']),
                    $this->metaValue(['ns4', 'nameserver4', 'name_server_4', 'server.ns4']),
                ]);
            }
        }

        return collect($resolved)
            ->map(fn ($item) => strtolower(trim((string) $item, " \t\n\r\0\x0B.")))
            ->filter()
            ->unique()
            ->values()
            ->all();
    }

    public function getWebsiteUrlAttribute(): ?string
    {
        $domain = strtolower(trim((string) $this->domain_name));

        if ($domain === '' || filter_var($domain, FILTER_VALIDATE_IP)) {
            return null;
        }

        return 'https://'.$domain;
    }

    public function getDirectUrlAttribute(): ?string
    {
        $resolved = $this->metaValue([
            'tempurl',
            'temp_url',
            'temporary_url',
            'server.tempurl',
            'server.temporary_url',
        ]);

        return $resolved !== '' ? (string) $resolved : null;
    }

    public function getDiskSpaceMbAttribute($value): ?int
    {
        $resolved = $value ?? $this->metaValue([
            'disk_space_mb',
            'diskspace',
            'disk_space',
        ]);

        return is_numeric($resolved) && (int) $resolved >= 0 ? (int) $resolved : null;
    }

    public function getBandwidthMbAttribute($value): ?int
    {
        $resolved = $value ?? $this->metaValue([
            'bandwidth_mb',
            'bandwidth',
        ]);

        return is_numeric($resolved) && (int) $resolved >= 0 ? (int) $resolved : null;
    }

    public function getStatusAttribute($value): string
    {
        $candidate = $value;

        if ($candidate === null || $candidate === '' || $candidate === self::STATUS_PENDING) {
            $candidate = $this->metaValue([
                'status',
                'currentstatus',
                'orderstatus',
            ], $candidate ?: self::STATUS_PENDING);
        }

        return $this->normalizeStatus((string) $candidate);
    }

    public function getProvisionedAtAttribute($value): ?Carbon
    {
        if ($value instanceof Carbon) {
            return $value;
        }

        if ($value) {
            return Carbon::parse($value);
        }

        $timestamp = $this->metaValue([
            'provisioned_at',
            'creation_time',
            'creationtime',
            'creation-date',
        ]);

        if ($timestamp === null || $timestamp === '') {
            return null;
        }

        try {
            return is_numeric($timestamp)
                ? Carbon::createFromTimestamp((int) $timestamp)
                : Carbon::parse((string) $timestamp);
        } catch (\Throwable) {
            return null;
        }
    }

    public function getExpiresAtAttribute($value): ?Carbon
    {
        if ($value instanceof Carbon) {
            return $value;
        }

        if ($value) {
            return Carbon::parse($value);
        }

        $timestamp = $this->metaValue([
            'expires_at',
            'end_time',
            'endtime',
            'expirytime',
            'expiry-date',
        ]);

        if ($timestamp === null || $timestamp === '') {
            return null;
        }

        try {
            return is_numeric($timestamp)
                ? Carbon::createFromTimestamp((int) $timestamp)
                : Carbon::parse((string) $timestamp);
        } catch (\Throwable) {
            return null;
        }
    }

    private function metaValue(array $keys, mixed $default = null): mixed
    {
        $meta = $this->meta ?? [];
        $sources = [];

        if (is_array($meta)) {
            $sources[] = $meta;

            if (is_array($meta['raw'] ?? null)) {
                $sources[] = $meta['raw'];
            }
        }

        foreach ($sources as $source) {
            foreach ($keys as $key) {
                $nested = Arr::get($source, $key);
                if ($nested !== null && $nested !== '') {
                    return $nested;
                }

                if (array_key_exists($key, $source) && $source[$key] !== null && $source[$key] !== '') {
                    return $source[$key];
                }
            }
        }

        return $default;
    }

    private function normalizeStatus(string $status): string
    {
        return match (strtolower(trim($status))) {
            'active', 'active (paid)' => self::STATUS_ACTIVE,
            'suspended', 'inactive' => self::STATUS_SUSPENDED,
            'deleted', 'cancelled' => self::STATUS_CANCELLED,
            'expired' => self::STATUS_EXPIRED,
            'failed' => self::STATUS_FAILED,
            default => self::STATUS_PENDING,
        };
    }

    private function looksLikeTemporaryHostingUrl(?string $value): bool
    {
        $normalized = strtolower(trim((string) $value));

        if ($normalized === '') {
            return false;
        }

        return str_contains($normalized, 'tempwebhost.net')
            || str_contains($normalized, '/~');
    }

    private function preferredCpanelDomain(): ?string
    {
        $domain = strtolower(trim((string) $this->domain_name));

        if ($domain === '' || filter_var($domain, FILTER_VALIDATE_IP)) {
            return null;
        }

        if ($this->relationLoaded('domain') && $this->domain) {
            return $this->domainIsActive($this->domain) ? $domain : null;
        }

        if ($this->domain_id) {
            $linkedDomain = $this->domain()->first();

            if ($linkedDomain) {
                return $this->domainIsActive($linkedDomain) ? $domain : null;
            }
        }

        $matchingDomain = Domain::query()
            ->where('host', $domain)
            ->latest('id')
            ->first();

        if ($matchingDomain) {
            return $this->domainIsActive($matchingDomain) ? $domain : null;
        }

        return $domain;
    }

    private function domainIsActive(Domain $domain): bool
    {
        return (string) $domain->status === 'verified'
            && (string) $domain->onboarding_state === Domain::STATE_ACTIVE;
    }
}