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<?php |
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/* |
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* This file is part of Laravel Love. |
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* |
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* (c) Anton Komarev <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace Cog\Laravel\Love\Reacter\Models; |
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use Cog\Contracts\Love\Reactant\Exceptions\ReactantInvalid; |
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use Cog\Contracts\Love\Reactant\Models\Reactant as ReactantContract; |
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use Cog\Contracts\Love\Reacter\Exceptions\NotAssignedToReacterable; |
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use Cog\Contracts\Love\Reacter\Models\Reacter as ReacterContract; |
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use Cog\Contracts\Love\Reacterable\Models\Reacterable as ReacterableContract; |
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use Cog\Contracts\Love\Reaction\Exceptions\ReactionAlreadyExists; |
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use Cog\Contracts\Love\Reaction\Exceptions\ReactionNotExists; |
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use Cog\Contracts\Love\Reaction\Models\Reaction as ReactionContract; |
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use Cog\Contracts\Love\ReactionType\Models\ReactionType as ReactionTypeContract; |
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use Cog\Laravel\Love\Reaction\Models\Reaction; |
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use Cog\Laravel\Love\Support\Database\Eloquent\Model; |
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use Illuminate\Database\Eloquent\Relations\HasMany; |
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use Illuminate\Database\Eloquent\Relations\MorphTo; |
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final class Reacter extends Model implements |
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ReacterContract |
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{ |
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protected $table = 'love_reacters'; |
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protected $fillable = [ |
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'type', |
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]; |
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protected $casts = [ |
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'id' => 'string', |
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]; |
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public function reacterable(): MorphTo |
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{ |
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return $this->morphTo('reacterable', 'type', 'id', 'love_reacter_id'); |
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} |
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public function reactions(): HasMany |
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{ |
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return $this->hasMany(Reaction::class, 'reacter_id'); |
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} |
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public function getId(): string |
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{ |
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return $this->getAttributeValue('id'); |
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} |
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public function getReacterable(): ReacterableContract |
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{ |
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$reacterable = $this->getAttribute('reacterable'); |
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if (is_null($reacterable)) { |
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throw new NotAssignedToReacterable(); |
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} |
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return $reacterable; |
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} |
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public function getReactions(): iterable |
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{ |
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return $this->getAttribute('reactions'); |
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} |
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public function reactTo( |
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ReactantContract $reactant, |
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ReactionTypeContract $reactionType, |
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?float $rate = null |
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): void { |
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if ($reactant->isNull()) { |
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throw ReactantInvalid::notExists(); |
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} |
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$reaction = $this->findReaction($reactant, $reactionType); |
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if (is_null($reaction)) { |
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$this->createReaction($reactant, $reactionType, $rate); |
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return; |
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} |
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if (is_null($rate)) { |
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throw new ReactionAlreadyExists( |
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sprintf('Reaction of type `%s` already exists.', $reactionType->getName()) |
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); |
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} |
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// TODO: Get or compare rate value using reaction contract |
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if ($reaction->getAttributeValue('rate') === $rate) { |
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throw new ReactionAlreadyExists( |
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sprintf('Reaction of type `%s` with `%s` rate already exists.', $reactionType->getName(), $rate) |
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); |
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} |
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$reaction->update([ |
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'rate' => $rate, |
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]); |
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} |
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public function unreactTo( |
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ReactantContract $reactant, |
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ReactionTypeContract $reactionType |
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): void { |
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if ($reactant->isNull()) { |
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throw ReactantInvalid::notExists(); |
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} |
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$reaction = $this->findReaction($reactant, $reactionType); |
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if (is_null($reaction)) { |
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throw new ReactionNotExists( |
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sprintf('Reaction of type `%s` not exists.', $reactionType->getName()) |
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); |
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} |
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$reaction->delete(); |
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} |
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public function hasReactedTo( |
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ReactantContract $reactant, |
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?ReactionTypeContract $reactionType = null |
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): bool { |
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if ($reactant->isNull()) { |
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return false; |
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} |
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return $reactant->isReactedBy($this, $reactionType); |
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} |
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public function hasNotReactedTo( |
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ReactantContract $reactant, |
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?ReactionTypeContract $reactionType = null |
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): bool { |
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return $reactant->isNotReactedBy($this, $reactionType); |
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} |
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public function isEqualTo( |
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ReacterContract $that |
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): bool { |
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return $that->isNotNull() |
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&& $this->getId() === $that->getId(); |
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} |
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public function isNotEqualTo( |
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ReacterContract $that |
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): bool { |
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return !$this->isEqualTo($that); |
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} |
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public function isNull(): bool |
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{ |
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return !$this->exists; |
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} |
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public function isNotNull(): bool |
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{ |
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return $this->exists; |
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} |
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private function createReaction( |
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ReactantContract $reactant, |
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ReactionTypeContract $reactionType, |
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?float $rate |
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): void { |
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$this->reactions()->create([ |
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'reaction_type_id' => $reactionType->getId(), |
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'reactant_id' => $reactant->getId(), |
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'rate' => $rate, |
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]); |
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} |
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/** |
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* @param \Cog\Contracts\Love\Reactant\Models\Reactant $reactant |
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* @param \Cog\Contracts\Love\ReactionType\Models\ReactionType $reactionType |
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* @return null|\Cog\Contracts\Love\Reaction\Models\Reaction|\Illuminate\Database\Eloquent\Model |
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*/ |
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private function findReaction( |
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ReactantContract $reactant, |
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ReactionTypeContract $reactionType |
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): ?ReactionContract { |
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return $this |
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->reactions() |
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->where('reactant_id', $reactant->getId()) |
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->where('reaction_type_id', $reactionType->getId()) |
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->first(); |
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} |
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} |
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