<?php

namespace App\Mail;

use App\Exceptions\AppCommonException;
use App\Models\Email;
use App\Models\User;
use App\Util\DateUtil;
use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Str;

abstract class BaseMailer extends Mailable
{
    use Queueable, SerializesModels;

    protected $configRoot = 'mail.mailers.smtp_ht.';

    protected $casts = [];

    protected User|null $__user = null;
    protected string $__email = "";
    protected string|null $__userId = null;
    protected string|null $__contractId = null;
    protected string|null $__receiptIssuingOrderId = null;


    public function sendEmail(string $email)
    {
        $this->__email = $email;
        Mail::to($email)
            ->send($this);
    }

    public function setUser(User $user)
    {
        $this->__userId = $user->id;
        $this->__email = $user->email;
        return $this;
    }

    public function setEmail(string $target)
    {
        $this->__email = $target;
        return $this;
    }

    public function setUserId(string $userId)
    {
        $this->__userId = $userId;
        return $this;
    }

    public function setContractId(string $contractId)
    {
        $this->__contractId = $contractId;
        return $this;
    }

    public function setReceiptIssuingOrderId(string $receiptIssuingOrderId)
    {
        $this->__receiptIssuingOrderId = $receiptIssuingOrderId;
        return $this;
    }

    public function build()
    {
        return $this->text($this->getTemplateName())
            ->subject($this->getSubject())
            ->with($this->getParams());
    }

    public function setConfigDefault()
    {
        $root = $this->configRoot;
        config([
            $root . "transport" => "smtp",
            $root . "host" =>  env('MAIL_HOST', 'smtp.mailgun.org'),
            $root .  'port' => env('MAIL_PORT', 587),
            $root . 'encryption' => env('MAIL_ENCRYPTION', 'tls'),
            $root . 'username' => env('MAIL_USERNAME'),
            $root . 'password' => env('MAIL_PASSWORD'),
            $root . 'timeout' => null,
            $root . 'auth_mode'  => null,
            $root . 'verify_peer' => false,
        ]);
    }

    public function setConfig(array $config)
    {
        $root = $this->configRoot;
        $ret = [];
        foreach ($config as $key => $val) {
            $ret[$root . $key] = $val;
        }
        config($ret);
    }

    protected function setValues(\stdClass|array $data)
    {
        foreach ($data as $key => $val) {
            $this->setValue($key, $val);
        }
    }

    protected function setValue(string $key, $value)
    {
        $val = $value;
        $camel = Str::camel($key);
        $snake = Str::snake($key);

        $property = "";

        if (property_exists($this, $camel)) {
            $property = $camel;
        } else if (property_exists($this, $snake)) {
            $property = $snake;
        } else {
            return;
        }

        if (data_get($this->casts, $property) === 'datetime') {
            $this->$property = DateUtil::parse($val);
        } else {
            $this->$property = $val;
        }
    }

    public function makeModel(): Email
    {
        if ($this->__email === "") {
            throw new AppCommonException("Email宛先不明");
        }

        $model = new Email();
        $model->subject = $this->getSubject();
        $model->content = $this->render();
        $model->type = get_class($this);
        $model->email = $this->__email;

        $model->contract_id = $this->__contractId;
        $model->user_id = $this->__userId;
        $model->receipt_issuing_order_id = $this->__receiptIssuingOrderId;

        return $model;
    }

    abstract public function getTemplateName(): string;

    abstract public function getSubject(): string;

    abstract public function getParams(): array;


    /**
     * 画面のＵＲＬを生成する
     *
     * @param array|string $path
     * @return string
     */
    protected function getAppUrl(array|string $path): string
    {
        $elements = [config("app.url")];
        if (is_array($path)) {
            $elements =  array_merge($elements, $path);
        } else {
            $elements[] = $path;
        }

        return implode(
            "/",
            $elements,
        );
    }
}