feat: add steps (#379)

* feat: add steps

* feat: add steps

* feat: delete steps

* feat: delete steps on cascade

etc/databases/mooc.sql

@@ -4,35 +4,35 @@
 
 -- Generic tables
 
-CREATE TABLE `mutations` (
-	`id` BIGINT AUTO_INCREMENT PRIMARY KEY,
-	`table_name` VARCHAR(255) NOT NULL,
-	`operation` ENUM ('INSERT', 'UPDATE', 'DELETE') NOT NULL,
-	`old_value` JSON NULL,
-	`new_value` JSON NULL,
-	`mutation_timestamp` TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+CREATE TABLE mutations (
+	id BIGINT AUTO_INCREMENT PRIMARY KEY,
+	table_name VARCHAR(255) NOT NULL,
+	operation ENUM ('INSERT', 'UPDATE', 'DELETE') NOT NULL,
+	old_value JSON NULL,
+	new_value JSON NULL,
+	mutation_timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP
 ) ENGINE = InnoDB
   DEFAULT CHARSET = utf8mb4
   COLLATE = utf8mb4_unicode_ci;
 
-CREATE TABLE `domain_events` (
-	`id` CHAR(36) NOT NULL,
-	`aggregate_id` CHAR(36) NOT NULL,
-	`name` VARCHAR(255) NOT NULL,
-	`body` JSON NOT NULL,
-	`occurred_on` TIMESTAMP NOT NULL,
-	PRIMARY KEY (`id`)
+CREATE TABLE domain_events (
+	id CHAR(36) NOT NULL,
+	aggregate_id CHAR(36) NOT NULL,
+	name VARCHAR(255) NOT NULL,
+	body JSON NOT NULL,
+	occurred_on TIMESTAMP NOT NULL,
+	PRIMARY KEY (id)
 ) ENGINE = InnoDB
   DEFAULT CHARSET = utf8mb4
   COLLATE = utf8mb4_unicode_ci;
 
 -- Aggregates tables
 
-CREATE TABLE `courses` (
-	`id` CHAR(36) NOT NULL,
-	`name` VARCHAR(255) NOT NULL,
-	`duration` VARCHAR(255) NOT NULL,
-	PRIMARY KEY (`id`)
+CREATE TABLE courses (
+	id CHAR(36) NOT NULL,
+	name VARCHAR(255) NOT NULL,
+	duration VARCHAR(255) NOT NULL,
+	PRIMARY KEY (id)
 ) ENGINE = InnoDB
   DEFAULT CHARSET = utf8mb4
   COLLATE = utf8mb4_unicode_ci;
@@ -68,28 +68,62 @@ BEGIN
 	VALUES ('courses', 'DELETE', JSON_OBJECT('id', old.id, 'name', old.name, 'duration', old.duration), NOW());
 END;
 
-CREATE TABLE `courses_counter` (
-	`id` CHAR(36) NOT NULL,
-	`total` INT NOT NULL,
-	`existing_courses` JSON NOT NULL,
-	PRIMARY KEY (`id`)
+CREATE TABLE courses_counter (
+	id CHAR(36) NOT NULL,
+	total INT NOT NULL,
+	existing_courses JSON NOT NULL,
+	PRIMARY KEY (id)
 ) ENGINE = InnoDB
   DEFAULT CHARSET = utf8mb4
   COLLATE = utf8mb4_unicode_ci;
 
-INSERT INTO `courses_counter`
+INSERT INTO courses_counter (id, total, existing_courses)
 VALUES ("cdf26d7d-3deb-4e8c-9f73-4ac085a8d6f3", 0, "[]");
 
+CREATE TABLE steps (
+	id CHAR(36) NOT NULL,
+	title VARCHAR(255) NOT NULL,
+	duration INT NOT NULL,
+	type VARCHAR(255) NOT NULL,
+	PRIMARY KEY (id)
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci;
+
+CREATE TABLE steps_video (
+	id CHAR(36) NOT NULL,
+	url VARCHAR(255) NOT NULL,
+	FOREIGN KEY (id) REFERENCES steps(id) ON DELETE CASCADE
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci;
+
+CREATE TABLE steps_exercise (
+	id CHAR(36) NOT NULL,
+	content VARCHAR(255) NOT NULL,
+	FOREIGN KEY (id) REFERENCES steps(id) ON DELETE CASCADE
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci;
+
+CREATE TABLE steps_quiz (
+	id CHAR(36) NOT NULL,
+	questions TEXT NOT NULL,
+	FOREIGN KEY (id) REFERENCES steps(id) ON DELETE CASCADE
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci;
+
 
 /* -------------------------
       BACKOFFICE CONTEXT
 ---------------------------- */
 
-CREATE TABLE `backoffice_courses` (
-	`id` CHAR(36) NOT NULL,
-	`name` VARCHAR(255) NOT NULL,
-	`duration` VARCHAR(255) NOT NULL,
-	PRIMARY KEY (`id`)
+CREATE TABLE backoffice_courses (
+	id CHAR(36) NOT NULL,
+	name VARCHAR(255) NOT NULL,
+	duration VARCHAR(255) NOT NULL,
+	PRIMARY KEY (id)
 ) ENGINE = InnoDB
   DEFAULT CHARSET = utf8mb4
   COLLATE = utf8mb4_unicode_ci;

src/Mooc/Steps/Application/Create/CreateVideoStepCommandHandler.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Application\Create;
+
+use CodelyTv\Shared\Domain\Bus\Command\CommandHandler;
+
+final readonly class CreateVideoStepCommandHandler implements CommandHandler
+{
+	public function __construct(private VideoStepCreator $creator) {}
+
+	public function __invoke(): void {}
+}

src/Mooc/Steps/Application/Create/VideoStepCreator.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Application\Create;
+
+use CodelyTv\Mooc\Steps\Domain\StepRepository;
+
+final readonly class VideoStepCreator
+{
+	public function __construct(private StepRepository $repository) {}
+
+	public function __invoke(): void {}
+}

src/Mooc/Steps/Domain/Exercise/ExerciseStep.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain\Exercise;
+
+use CodelyTv\Mooc\Steps\Domain\Step;
+use CodelyTv\Mooc\Steps\Domain\StepDuration;
+use CodelyTv\Mooc\Steps\Domain\StepId;
+use CodelyTv\Mooc\Steps\Domain\StepTitle;
+
+final class ExerciseStep extends Step
+{
+	public function __construct(
+		StepId $id,
+		StepTitle $title,
+		StepDuration $duration,
+		private readonly ExerciseStepContent $content
+	) {
+		parent::__construct($id, $title, $duration);
+	}
+}

src/Mooc/Steps/Domain/Exercise/ExerciseStepContent.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain\Exercise;
+
+use CodelyTv\Shared\Domain\ValueObject\StringValueObject;
+
+final class ExerciseStepContent extends StringValueObject {}

src/Mooc/Steps/Domain/Quiz/QuizStep.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain\Quiz;
+
+use CodelyTv\Mooc\Steps\Domain\Step;
+use CodelyTv\Mooc\Steps\Domain\StepDuration;
+use CodelyTv\Mooc\Steps\Domain\StepId;
+use CodelyTv\Mooc\Steps\Domain\StepTitle;
+
+final class QuizStep extends Step
+{
+	/** @var QuizStepQuestion[] */
+	private array $questions;
+
+	public function __construct(
+		StepId $id,
+		StepTitle $title,
+		StepDuration $duration,
+		QuizStepQuestion ...$questions
+	) {
+		parent::__construct($id, $title, $duration);
+
+		$this->questions = $questions;
+	}
+}

src/Mooc/Steps/Domain/Quiz/QuizStepQuestion.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain\Quiz;
+
+final readonly class QuizStepQuestion
+{
+	public function __construct(private string $question, private array $answers) {}
+
+	public static function fromString(string $value): self
+	{
+		[$question, $answers] = explode('----', $value);
+
+		return new self($question, explode('****', $answers));
+	}
+
+	public function toString(): string
+	{
+		return $this->question . '----' . implode('****', $this->answers);
+	}
+}

src/Mooc/Steps/Domain/Step.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain;
+
+use CodelyTv\Shared\Domain\Aggregate\AggregateRoot;
+
+abstract class Step extends AggregateRoot
+{
+	public function __construct(
+		public readonly StepId $id,
+		private readonly StepTitle $title,
+		private readonly StepDuration $duration
+	) {}
+}

src/Mooc/Steps/Domain/StepDuration.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain;
+
+use CodelyTv\Shared\Domain\ValueObject\IntValueObject;
+
+final class StepDuration extends IntValueObject {}

src/Mooc/Steps/Domain/StepId.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain;
+
+use CodelyTv\Shared\Domain\ValueObject\Uuid;
+
+final class StepId extends Uuid {}

src/Mooc/Steps/Domain/StepRepository.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain;
+
+interface StepRepository
+{
+	public function save(Step $step): void;
+
+	public function search(StepId $id): ?Step;
+
+	public function delete(Step $step): void;
+}

src/Mooc/Steps/Domain/StepTitle.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain;
+
+use CodelyTv\Shared\Domain\ValueObject\StringValueObject;
+
+final class StepTitle extends StringValueObject {}

src/Mooc/Steps/Domain/Video/VideoStep.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain\Video;
+
+use CodelyTv\Mooc\Steps\Domain\Step;
+use CodelyTv\Mooc\Steps\Domain\StepDuration;
+use CodelyTv\Mooc\Steps\Domain\StepId;
+use CodelyTv\Mooc\Steps\Domain\StepTitle;
+
+final class VideoStep extends Step
+{
+	public function __construct(
+		StepId $id,
+		StepTitle $title,
+		StepDuration $duration,
+		private readonly VideoStepUrl $url
+	) {
+		parent::__construct($id, $title, $duration);
+	}
+}

src/Mooc/Steps/Domain/Video/VideoStepUrl.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace CodelyTv\Mooc\Steps\Domain\Video;
+
+use CodelyTv\Shared\Domain\ValueObject\StringValueObject;
+
+final class VideoStepUrl extends StringValueObject {}

src/Mooc/Steps/Infrastructure/Persistence/Doctrine/Exercise.ExerciseStep.orm.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<doctrine-mapping xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                  xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
+                  xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
+                          https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
+
+    <entity name="CodelyTv\Mooc\Steps\Domain\Exercise\ExerciseStep" table="steps_exercise">
+        <embedded name="content" class="CodelyTv\Mooc\Steps\Domain\Exercise\ExerciseStepContent" use-column-prefix="false" />
+    </entity>
+</doctrine-mapping>

src/Mooc/Steps/Infrastructure/Persistence/Doctrine/Exercise.ExerciseStepContent.orm.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<doctrine-mapping xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                  xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
+                  xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
+                          https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
+
+    <embeddable name="CodelyTv\Mooc\Steps\Domain\Exercise\ExerciseStepContent">
+        <field name="value" type="string" column="content" />
+    </embeddable>
+</doctrine-mapping>

src/Mooc/Steps/Infrastructure/Persistence/Doctrine/Quiz.QuizStep.orm.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<doctrine-mapping xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                  xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
+                  xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
+                          https://www.doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
+
+    <entity name="CodelyTv\Mooc\Steps\Domain\Quiz\QuizStep" table="steps_quiz">
+        <field name="questions" type="quiz_step_questions" column="questions" />
+    </entity>
+</doctrine-mapping>