<?php

namespace engine;

class ModelProperty
{
    public function __construct(
        protected ?ModelFieldType $type,
        protected mixed           $realType,
        protected bool            $nullable,
        protected string          $modelName,
        protected string          $dbName
    ) {}

    public function getDbName(): string {
        return $this->dbName;
    }

    public function getModelName(): string {
        return $this->modelName;
    }

    public function isNullable(): bool {
        return $this->nullable;
    }

    public function getType(): ?ModelFieldType {
        return $this->type;
    }

    public function fromRawValue(mixed $value): mixed {
        if ($this->nullable && is_null($value))
            return null;

        switch ($this->type) {
            case ModelFieldType::BOOLEAN:
                return (bool)$value;

            case ModelFieldType::INTEGER:
                return (int)$value;

            case ModelFieldType::FLOAT:
                return (float)$value;

            case ModelFieldType::ARRAY:
                return array_filter(explode(',', $value));

            case ModelFieldType::JSON:
                $val = jsonDecode($value);
                if (!$val)
                    $val = null;
                return $val;

            case ModelFieldType::SERIALIZED:
                $val = unserialize($value);
                if ($val === false)
                    $val = null;
                return $val;

            case ModelFieldType::BITFIELD:
                return new MySQLBitField($value);

            case ModelFieldType::BACKED_ENUM:
                try {
                    return $this->realType::from($value);
                } catch (\ValueError $e) {
                    if ($this->nullable)
                        return null;
                    throw $e;
                }

            default:
                return (string)$value;
        }
    }
}