<?php


namespace HttpServer\Http;

use HttpServer\Abstracts\BaseContext;
use Swoole\Coroutine;

/**
 * Class Context
 * @package Yoc\http
 */
class Context extends BaseContext
{

    protected static array $_contents = [];


    /**
     * @param $id
     * @param $context
     * @param null $key
     * @return mixed
     */
    public static function setContext($id, $context, $key = null): mixed
    {
        return self::setCoroutine($id, $context, $key);
    }

    /**
     * @param $id
     * @param $context
     * @param null $key
     * @return array
     */
    private static function setStatic($id, $context, $key = null): mixed
    {
        if (empty($key)) {
            return static::$_contents[$id] = $context;
        }
        if (!is_array(static::$_contents[$id])) {
            static::$_contents[$id] = [$key => $context];
        } else {
            static::$_contents[$id][$key] = $context;
        }
        return $context;
    }

    /**
     * @param $id
     * @param $context
     * @param null $key
     * @return mixed
     */
    private static function setCoroutine($id, $context, $key = null): mixed
    {
        if (empty($key)) {
            return Coroutine::getContext()[$id] = $context;
        }
        if (!is_array(Coroutine::getContext()[$id])) {
            Coroutine::getContext()[$id] = [$key => $context];
        } else {
            Coroutine::getContext()[$id][$key] = $context;
        }
        return $context;
    }

    /**
     * @param $id
     * @param null $key
     * @param int $value
     * @return bool|int
     */
    public static function increment($id, $key = null, $value = 1): bool|int
    {
        if (!isset(Coroutine::getContext()[$id][$key])) {
            return false;
        }
        return Coroutine::getContext()[$id][$key] += $value;
    }

    /**
     * @param $id
     * @param null $key
     * @param int $value
     * @return bool|int
     */
    public static function decrement($id, $key = null, $value = 1): bool|int
    {
        if (!static::hasContext($id)) {
            return false;
        }
        if (!isset(Coroutine::getContext()[$id][$key])) {
            return false;
        }
        return Coroutine::getContext()[$id][$key] -= $value;
    }

    /**
     * @param $id
     * @param null $key
     * @return mixed
     */
    public static function getContext($id, $key = null): mixed
    {
        return static::loadByContext($id, $key);
    }


    /**
     * @param $id
     * @param null $key
     * @return mixed
     */
    private static function loadByContext($id, $key = null): mixed
    {
        $data = Coroutine::getContext()[$id] ?? null;
        if ($data === null) {
            return null;
        }
        if ($key !== null) {
            return $data[$key] ?? null;
        }
        return $data;
    }


    /**
     * @param $id
     * @param null $key
     * @return mixed
     */
    private static function loadByStatic($id, $key = null): mixed
    {
        $data = static::$_contents[$id] ?? null;
        if ($data === null) {
            return null;
        }
        if ($key !== null) {
            return $data[$key] ?? null;
        }
        return $data;
    }


    /**
     * @return mixed
     */
    public static function getAllContext(): mixed
    {
        if (static::inCoroutine()) {
            return Coroutine::getContext() ?? [];
        } else {
            return static::$_contents ?? [];
        }
    }

    /**
     * @param string $id
     * @param string|null $key
     */
    public static function remove(string $id, string $key = null)
    {
        if (!static::hasContext($id, $key)) {
            return;
        }
        if (!empty($key)) {
            unset(Coroutine::getContext()[$id][$key]);
        } else {
            unset(Coroutine::getContext()[$id]);
        }
    }

    /**
     * @param $id
     * @param null $key
     * @return bool
     */
    public static function hasContext($id, $key = null): bool
    {
        return static::searchByCoroutine($id, $key);
    }


    /**
     * @param $id
     * @param null $key
     * @return bool
     */
    private static function searchByStatic($id, $key = null): bool
    {
        if (!isset(static::$_contents[$id])) {
            return false;
        }
        if (!empty($key) && !isset(static::$_contents[$id][$key])) {
            return false;
        }
        return true;
    }


    /**
     * @param $id
     * @param null $key
     * @return bool
     */
    private static function searchByCoroutine($id, $key = null): bool
    {
        if (!isset(Coroutine::getContext()[$id])) {
            return false;
        }
        if ($key !== null) {
            return isset((Coroutine::getContext()[$id] ?? [])[$key]);
        }
        return true;
    }


    /**
     * @return bool
     */
    public static function inCoroutine(): bool
    {
        return Coroutine::getCid() > 0;
    }

}