<?php

namespace App\Models;

use App\Jobs\SetServiceStats;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Str;
use Rennokki\QueryCache\Traits\QueryCacheable;

class Service extends Model
{
    use HasFactory;
    use QueryCacheable;

    protected $cacheFor = 0;

    protected $fillable = [
        'name'
    ];

    public function __construct(array $attributes = [])
    {
        $this->cacheFor = config('api.servicesDBCache') * 60;
        parent::__construct($attributes);
    }

    /**
     * Set the base cache tags that will be present
     * on all queries.
     *
     *! This is used to flush caching
     *
     * @return array
     */
    protected function getCacheBaseTags(): array
    {
        return [
            'crm_services',
        ];
    }

    protected static function booted()
    {
        static::creating(function (self $service) {
            $service->generateBearerToken();
            if (Hash::needsRehash($service->bearer_token)) {
                $service->bearer_token = Hash::make($service->bearer_token);
            }
            if (Hash::needsRehash($service->bearer_pwd)) {
                $service->bearer_pwd = Hash::make($service->bearer_pwd);
            }
            if (Hash::needsRehash($service->api_token)) {
                $service->api_token = Hash::make($service->api_token);
            }
        });
        static::updating(function (self $service) {
            if (Hash::needsRehash($service->bearer_token)) {
                $service->bearer_token = Hash::make($service->bearer_token);
            }
            if (Hash::needsRehash($service->bearer_pwd)) {
                $service->bearer_pwd = Hash::make($service->bearer_pwd);
            }
            if (Hash::needsRehash($service->api_token)) {
                $service->api_token = Hash::make($service->api_token);
            }
        });
        static::created(function () {
            // flush Eloquent cache
            self::flushQueryCache();
        });
        static::updated(function () {
            // flush Eloquent cache
            self::flushQueryCache();
        });
        static::deleted(function () {
            // flush Eloquent cache
            self::flushQueryCache();
        });
    }

    /**
     * Generates a new Api Token
     *
     * @return string
     */
    public function generateApiToken(): string
    {
        $this->api_token      = hash('sha256', Str::uuid());
        $this->api_token_date = now();
        return $this->api_token;
    }

    /**
     * Generates new bearer credentials
     *
     * @return string
     */
    public function generateBearerToken(): string
    {
        $this->bearer_token      = hash('sha256', Str::uuid());
        $this->bearer_token_date = now();
        $this->bearer_pwd        = hash('ripemd160', Str::uuid());
        return $this->bearer_token;
    }

    /**
     * Increment API CRM Stat
     *
     * @return void
     */
    public function incrementStat(): void
    {
        SetServiceStats::dispatch($this)->onConnection('database');
    }

    /**
     * Get Service from apiToken with its brand
     *
     * @param string $apiToken
     * @return \App\Models\Service
     * @throws \Illuminate\Database\Eloquent\ModelNotFoundException
     */
    public static function getFromApiToken(string $apiToken): self
    {
        $services = static::with([
            'brand' => function ($query) {
                return $query->cacheTags(["service:author"]);
            },
        ])->get();
        /** @var \App\Models\Service $service */
        foreach ($services as $service) {
            if ($service->api_token and Hash::check($apiToken, $service->api_token)) {
                return $service->load([
                    'brand' => function ($query) use ($service) {
                        return $query->cacheTags(["service:{$service->id}:brand"]);
                    },
                ]);
            }
        }
        throw new ModelNotFoundException('Could not find service from Api Token');
    }

    /**
     * Get Service from bearerToken with its brand
     *
     * @param string $bearerToken
     * @return \App\Models\Service
     * @throws \Illuminate\Database\Eloquent\ModelNotFoundException
     */
    public static function getFromBearerToken(string $bearerToken): self
    {
        $services = static::all();
        /** @var \App\Models\Service $service */
        foreach ($services as $service) {
            if ($service->bearer_token and Hash::check($bearerToken, $service->bearer_token)) {
                return $service->load([
                    'brand' => function ($query) use ($service) {
                        return $query->cacheTags(["service:{$service->id}:brand"]);
                    },
                ]);
            }
        }
        throw new ModelNotFoundException('Could not find service from Service Token');
    }

    /**
     * Authenticate from the api token string
     *
     * @param array $guards
     * @param string $apiToken
     * @return bool
     */
    public function authenticateApi(string $apiToken): bool
    {
        return $this->api_token and Hash::check($apiToken, $this->api_token) and
            ((abs(strtotime($this->api_token_date) - time()) * 60) < (config('api.tokenTimeout') * 60));
    }

    /**
     * Brand BelongsTo relation
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     */
    public function brand()
    {
        return $this->belongsTo(Brand::class);
    }

    /**
     * ServiceStat hasMany relation
     *
     * @return \Illuminate\Database\Eloquent\Relations\HasMany
     */
    public function servicesStats()
    {
        return $this->hasMany(ServiceStat::class);
    }
}