Huge number of updates, too tired to list them all

+ Added a bunch of API handler classes that will use the already created models
+ Created a new Client class that will connect to new API handler classes
+ Created new collection classes

src/Model/PayloadCommit.php

@@ -0,0 +1,186 @@
+<?php declare(strict_types=1);
+namespace Gitea\Models;
+
+use GuzzleHttp\Psr7\{Uri};
+use Psr\Http\Message\{UriInterface};
+
+/** Represents a commit. */
+class PayloadCommit implements \JsonSerializable {
+
+  /** @var PayloadUser|null The person who authored the commit. */
+  private $author;
+
+  /** @var PayloadUser|null The person who committed the code. */
+  private $committer;
+
+  /** @var string The commit hash. */
+  private $id;
+
+  /** @var string The commit message. */
+  private $message;
+
+  /** @var \DateTime|null The commit date. */
+  private $timestamp;
+
+  /** @var UriInterface|null The URL to the commit's history. */
+  private $url;
+
+  /** @var PayloadCommitVerification|null The GPG verification of this commit. */
+  private $verification;
+
+  /**
+   * Creates a new payload commit.
+   * @param string $id The commit hash.
+   * @param string $message The commit message.
+   */
+  function __construct(string $id, string $message) {
+    $this->id = $id;
+    $this->setMessage($message);
+  }
+
+  /**
+   * Creates a new commit from the specified JSON map.
+   * @param object $map A JSON map representing a commit.
+   * @return static The instance corresponding to the specified JSON map.
+   */
+  static function fromJson(object $map): self {
+    return (new static(isset($map->id) && is_string($map->id) ? $map->id : '', isset($map->message) && is_string($map->message) ? $map->message : ''))
+      ->setAuthor(isset($map->author) && is_object($map->author) ? PayloadUser::fromJson($map->author) : null)
+      ->setCommitter(isset($map->committer) && is_object($map->committer) ? PayloadUser::fromJson($map->committer) : null)
+      ->setTimestamp(isset($map->timestamp) && is_string($map->timestamp) ? new \DateTime($map->timestamp) : null)
+      ->setUrl(isset($map->url) && is_string($map->url) ? new Uri($map->url) : null)
+      ->setVerification(isset($map->verification) && is_object($map->verification) ? PayloadCommitVerification::fromJson($map->verification) : null);
+  }
+
+  /**
+   * Gets the person who authored the commit.
+   * @return PayloadUser|null The person who authored the commit.
+   */
+  function getAuthor(): ?PayloadUser {
+    return $this->author;
+  }
+
+  /**
+   * Gets the person who committed the code.
+   * @return PayloadUser|null The person who committed the code.
+   */
+  function getCommitter(): ?PayloadUser {
+    return $this->committer;
+  }
+
+  /**
+   * Gets the commit hash.
+   * @return string The commit hash.
+   */
+  function getId(): string {
+    return $this->id;
+  }
+
+  /**
+   * Gets the commit message.
+   * @return string The commit message.
+   */
+  function getMessage(): string {
+    return $this->message;
+  }
+
+  /**
+   * Gets the commit date.
+   * @return \DateTime|null The commit date.
+   */
+  function getTimestamp(): ?\DateTime {
+    return $this->timestamp;
+  }
+
+  /**
+   * Gets the URL to the commit's history.
+   * @return UriInterface|null The URL to the commit's history.
+   */
+  function getUrl(): ?UriInterface {
+    return $this->url;
+  }
+
+  /**
+   * Gets the GPG verification of this commit.
+   * @return PayloadCommitVerification|null The GPG verification of this commit.
+   */
+  function getVerification(): ?PayloadCommitVerification {
+    return $this->verification;
+  }
+
+  /**
+   * Converts this object to a map in JSON format.
+   * @return \stdClass The map in JSON format corresponding to this object.
+   */
+  function jsonSerialize(): \stdClass {
+    return (object) [
+      'author' => ($author = $this->getAuthor()) ? $author->jsonSerialize() : null,
+      'committer' => ($committer = $this->getCommitter()) ? $committer->jsonSerialize() : null,
+      'id' => $this->getId(),
+      'message' => $this->getMessage(),
+      'timestamp' => ($date = $this->getTimestamp()) ? $date->format('c') : null,
+      'url' => ($url = $this->getUrl()) ? (string) $url : null,
+      'verification' => ($verification = $this->getVerification()) ? $verification->jsonSerialize() : null
+    ];
+  }
+
+  /**
+   * Sets the person who authored the commit.
+   * @param PayloadUser|null $value The new author.
+   * @return $this This instance.
+   */
+  function setAuthor(?PayloadUser $value): self {
+    $this->author = $value;
+    return $this;
+  }
+
+  /**
+   * Sets the person who committed the code.
+   * @param PayloadUser|null $value The new committer.
+   * @return $this This instance.
+   */
+  function setCommitter(?PayloadUser $value): self {
+    $this->committer = $value;
+    return $this;
+  }
+
+  /**
+   * Sets the commit message.
+   * @param string $value The new message.
+   * @return $this This instance.
+   */
+  function setMessage(string $value): self {
+    $this->message = $value;
+    return $this;
+  }
+
+  /**
+   * Sets the commit date.
+   * @param \DateTime|null $value The new commit date.
+   * @return $this This instance.
+   */
+  function setTimestamp(?\DateTime $value): self {
+    $this->timestamp = $value;
+    return $this;
+  }
+
+  /**
+   * Sets the URL to the commit's history.
+   * @param UriInterface|null $value The new commit URL.
+   * @return $this This instance.
+   */
+  function setUrl(?UriInterface $value): self {
+    $this->url = $value;
+    return $this;
+  }
+
+  /**
+   * Sets the commit message.
+   * @param PayloadCommitVerification|null $value The new message.
+   * @return $this This instance.
+   */
+  function setVerification(?PayloadCommitVerification $value): self {
+    $this->verification = $value;
+    return $this;
+  }
+}