<?php
namespace Incoviba\Model\Venta;

use DateTimeInterface;
use Incoviba\Common;
use Incoviba\Model\Proyecto\Broker;
use Incoviba\Model\Venta\Promotion\State;
use Incoviba\Model\Venta\Promotion\Type;

class Promotion extends Common\Ideal\Model
{
    public string $description;
    public float $amount;
    public DateTimeInterface $startDate;
    public ?DateTimeInterface $endDate;
    public ?DateTimeInterface $validUntil;
    public Type $type;
    public State $state = State::ACTIVE;

    protected array $projects;
    public function projects(): array
    {
        if (empty($this->projects)) {
            $this->projects = $this->runFactory('projects') ?? [];
        }
        return $this->projects;
    }

    protected array $brokers;
    public function brokers(): array
    {
        if (empty($this->brokers)) {
            $this->brokers = $this->runFactory('brokers') ?? [];
        }
        return $this->brokers;
    }

    protected array $unitTypes;
    public function unitTypes(): array
    {
        if (empty($this->unitTypes)) {
            $this->unitTypes = $this->runFactory('unitTypes') ?? [];
        }
        return $this->unitTypes;
    }
    protected array $unitLines;
    public function unitLines(): array
    {
        if (empty($this->unitLines)) {
            $this->unitLines = $this->runFactory('unitLines') ?? [];
        }
        return $this->unitLines;
    }

    protected array $units;
    public function units(): array
    {
        if (empty($this->units)) {
            $this->units = $this->runFactory('units') ?? [];
        }
        return $this->units;
    }

    public function value(float $price): float
    {
        if ($this->type === Type::FIXED) {
            return $price + $this->amount;
        }
        return $price / (1 - $this->amount);
    }

    protected function jsonComplement(): array
    {
        return [
            'description' => $this->description,
            'amount' => $this->amount,
            'start_date' => $this->startDate->format('Y-m-d'),
            'end_date' => $this->endDate?->format('Y-m-d'),
            'valid_until' => $this->validUntil?->format('Y-m-d'),
            'type' => $this->type,
            'state' => $this->state,
            'projects' => $this->projects() ?? [],
            'contracts' => $this->brokers() ?? [],
            'units' => $this->units() ?? []
        ];
    }
}