<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace KTXF\Mail\Entity;

use DateTimeImmutable;

/**
 * Mail Message Implementation
 * 
 * Concrete implementation of IMessageMutable for composing mail messages.
 * 
 * @since 2025.05.01
 */
class Message implements IMessageMutable {

    private ?string $id = null;
    private string $subject = '';
    private ?IAddress $from = null;
    private ?IAddress $replyTo = null;
    /** @var array<int, IAddress> */
    private array $to = [];
    /** @var array<int, IAddress> */
    private array $cc = [];
    /** @var array<int, IAddress> */
    private array $bcc = [];
    private ?DateTimeImmutable $date = null;
    private ?string $bodyText = null;
    private ?string $bodyHtml = null;
    /** @var array<int, IAttachment> */
    private array $attachments = [];
    /** @var array<string, string> */
    private array $headers = [];

    /**
     * Creates a message from array data
     * 
     * @since 2025.05.01
     * 
     * @param array $data
     * 
     * @return self
     */
    public static function fromArray(array $data): self {
        $message = new self();
        
        if (isset($data[self::JSON_PROPERTY_ID])) {
            $message->setId($data[self::JSON_PROPERTY_ID]);
        }
        if (isset($data[self::JSON_PROPERTY_SUBJECT])) {
            $message->setSubject($data[self::JSON_PROPERTY_SUBJECT]);
        }
        if (isset($data[self::JSON_PROPERTY_FROM])) {
            $message->setFrom(Address::fromArray($data[self::JSON_PROPERTY_FROM]));
        }
        if (isset($data[self::JSON_PROPERTY_REPLY_TO])) {
            $message->setReplyTo(Address::fromArray($data[self::JSON_PROPERTY_REPLY_TO]));
        }
        if (isset($data[self::JSON_PROPERTY_TO])) {
            $message->setTo(array_map(fn($a) => Address::fromArray($a), $data[self::JSON_PROPERTY_TO]));
        }
        if (isset($data[self::JSON_PROPERTY_CC])) {
            $message->setCc(array_map(fn($a) => Address::fromArray($a), $data[self::JSON_PROPERTY_CC]));
        }
        if (isset($data[self::JSON_PROPERTY_BCC])) {
            $message->setBcc(array_map(fn($a) => Address::fromArray($a), $data[self::JSON_PROPERTY_BCC]));
        }
        if (isset($data[self::JSON_PROPERTY_DATE])) {
            $message->setDate(new DateTimeImmutable($data[self::JSON_PROPERTY_DATE]));
        }
        if (isset($data[self::JSON_PROPERTY_BODY_TEXT])) {
            $message->setBodyText($data[self::JSON_PROPERTY_BODY_TEXT]);
        }
        if (isset($data[self::JSON_PROPERTY_BODY_HTML])) {
            $message->setBodyHtml($data[self::JSON_PROPERTY_BODY_HTML]);
        }
        if (isset($data[self::JSON_PROPERTY_ATTACHMENTS])) {
            $message->setAttachments(array_map(fn($a) => Attachment::fromArray($a), $data[self::JSON_PROPERTY_ATTACHMENTS]));
        }
        if (isset($data[self::JSON_PROPERTY_HEADERS])) {
            $message->setHeaders($data[self::JSON_PROPERTY_HEADERS]);
        }
        
        return $message;
    }

    /**
     * @inheritDoc
     */
    public function getId(): ?string {
        return $this->id;
    }

    /**
     * @inheritDoc
     */
    public function setId(?string $id): self {
        $this->id = $id;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getSubject(): string {
        return $this->subject;
    }

    /**
     * @inheritDoc
     */
    public function setSubject(string $subject): self {
        $this->subject = $subject;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getFrom(): ?IAddress {
        return $this->from;
    }

    /**
     * @inheritDoc
     */
    public function setFrom(?IAddress $from): self {
        $this->from = $from;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getReplyTo(): ?IAddress {
        return $this->replyTo;
    }

    /**
     * @inheritDoc
     */
    public function setReplyTo(?IAddress $replyTo): self {
        $this->replyTo = $replyTo;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getTo(): array {
        return $this->to;
    }

    /**
     * @inheritDoc
     */
    public function setTo(array $to): self {
        $this->to = $to;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function addTo(IAddress $address): self {
        $this->to[] = $address;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getCc(): array {
        return $this->cc;
    }

    /**
     * @inheritDoc
     */
    public function setCc(array $cc): self {
        $this->cc = $cc;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function addCc(IAddress $address): self {
        $this->cc[] = $address;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getBcc(): array {
        return $this->bcc;
    }

    /**
     * @inheritDoc
     */
    public function setBcc(array $bcc): self {
        $this->bcc = $bcc;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function addBcc(IAddress $address): self {
        $this->bcc[] = $address;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getDate(): ?DateTimeImmutable {
        return $this->date;
    }

    /**
     * @inheritDoc
     */
    public function setDate(?DateTimeImmutable $date): self {
        $this->date = $date;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getBodyText(): ?string {
        return $this->bodyText;
    }

    /**
     * @inheritDoc
     */
    public function setBodyText(?string $text): self {
        $this->bodyText = $text;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getBodyHtml(): ?string {
        return $this->bodyHtml;
    }

    /**
     * @inheritDoc
     */
    public function setBodyHtml(?string $html): self {
        $this->bodyHtml = $html;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getAttachments(): array {
        return $this->attachments;
    }

    /**
     * @inheritDoc
     */
    public function setAttachments(array $attachments): self {
        $this->attachments = $attachments;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function addAttachment(IAttachment $attachment): self {
        $this->attachments[] = $attachment;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function getHeaders(): array {
        return $this->headers;
    }

    /**
     * @inheritDoc
     */
    public function getHeader(string $name): ?string {
        return $this->headers[$name] ?? null;
    }

    /**
     * @inheritDoc
     */
    public function setHeaders(array $headers): self {
        $this->headers = $headers;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function setHeader(string $name, string $value): self {
        $this->headers[$name] = $value;
        return $this;
    }

    /**
     * @inheritDoc
     */
    public function hasRecipients(): bool {
        return !empty($this->to) || !empty($this->cc) || !empty($this->bcc);
    }

    /**
     * @inheritDoc
     */
    public function hasBody(): bool {
        return ($this->bodyText !== null && $this->bodyText !== '') 
            || ($this->bodyHtml !== null && $this->bodyHtml !== '');
    }

    /**
     * @inheritDoc
     */
    public function jsonSerialize(): array {
        $data = [
            self::JSON_PROPERTY_TYPE => self::JSON_TYPE,
        ];
        
        if ($this->id !== null) {
            $data[self::JSON_PROPERTY_ID] = $this->id;
        }
        
        $data[self::JSON_PROPERTY_SUBJECT] = $this->subject;
        
        if ($this->from !== null) {
            $data[self::JSON_PROPERTY_FROM] = $this->from;
        }
        if ($this->replyTo !== null) {
            $data[self::JSON_PROPERTY_REPLY_TO] = $this->replyTo;
        }
        if (!empty($this->to)) {
            $data[self::JSON_PROPERTY_TO] = $this->to;
        }
        if (!empty($this->cc)) {
            $data[self::JSON_PROPERTY_CC] = $this->cc;
        }
        if (!empty($this->bcc)) {
            $data[self::JSON_PROPERTY_BCC] = $this->bcc;
        }
        if ($this->date !== null) {
            $data[self::JSON_PROPERTY_DATE] = $this->date->format('c');
        }
        if ($this->bodyText !== null) {
            $data[self::JSON_PROPERTY_BODY_TEXT] = $this->bodyText;
        }
        if ($this->bodyHtml !== null) {
            $data[self::JSON_PROPERTY_BODY_HTML] = $this->bodyHtml;
        }
        if (!empty($this->attachments)) {
            $data[self::JSON_PROPERTY_ATTACHMENTS] = $this->attachments;
        }
        if (!empty($this->headers)) {
            $data[self::JSON_PROPERTY_HEADERS] = $this->headers;
        }
        
        return $data;
    }

}